Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - LDO voltage regulator Positive, fixed SOIC 8

TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q

LOW-DROPOUT VOLTAGE REGULATORS

WITH INTEGRATED DELAYED RESET FUNCTION

SLVS124F – JUNE 1995 – REVISED JANUARY 1999

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Available in 2.5-V, 3-V, 3.3-V, 4.85-V, and 5-V

Fixed-Output and Adjustable Versions

Integrated Precision Supply-Voltage

Supervisor Monitoring Regulator Output

Voltage

Active-Low Reset Signal with 200-ms Pulse

Width

Very Low Dropout Voltage ...Maximum of

35 mV at I

= 100 mA (TPS7350)

Low Quiescent Current – Independent of

Load . . . 340 µA Typ

Extremely Low Sleep-State Current,

0.5 µA Max

2% Tolerance Over Full Range of Load,

Line, and Temperature for Fixed-Output

Versions

Output Current Range of 0 mA to 500 mA

TSSOP Package Option Offers Reduced

Component Height For Critical Applications

description

The TPS73xx devices are members of a family of

micropower low-dropout (LDO) voltage regulators.

They are differentiated from the TPS71xx and TPS72xx LDOs by their integrated delayed microprocessor-reset

function. If the precision delayed reset is not required, the TPS71xx and TPS72xx should be considered.

AVAILABLE OPTIONS

OUTPUT VOLTAGE

(V)

NEGATIVE-GOING RESET

THRESHOLD VOLTAGE (V)

PACKAGED DEVICES

CHIP FORM

MIN TYP MAX MIN TYP MAX

SMALL

OUTLINE

(D)

PLASTIC DIP

(P)

TSSOP

(PW)

CHIP

FORM

(Y)

4.9 5 5.1 4.55 4.65 4.75 TPS7350QD TPS7350QP TPS7350QPW TPS7350Y

4.75 4.85 4.95 4.5 4.6 4.7 TPS7348QD TPS7348QP TPS7348QPW TPS7348Y

Cto

3.23 3.3 3.37 2.868 2.934 3 TPS7333QD TPS7333QP TPS7333QPW TPS7333Y

–

40°C

125°C

2.94 3 3.06 2.58 2.64 2.7 TPS7330QD TPS7330QP TPS7330QPW TPS7330Y

125 C

2.425 2.5 2.575 2.23 2.32 2.39 TPS7325QD TPS7325QP TPS7325QPW TPS7325Y

Adjustable

1.2 V to 9.75 V

1.101 1.123 1.145 TPS7301QD TPS7301QP TPS7301QPW TPS7301Y

The D and PW packages are available taped and reeled. Add an R suffix to device type (e.g., TPS7350QDR). The TPS7301Q is programmable

using an external resistor divider (see application information). The chip form is tested at 25°C.

The TPS7325 has a tolerance of ±3% over the full temperature range.

The TPS71xx and the TPS72xx are 500-mA and 250-mA output regulators respectively, offering performance similar to that of the TPS73xx but

without the delayed-reset function. The TPS72xx devices are further differentiated by availability in 8-pin thin-shrink small-outline packages

(TSSOP) for applications requiring minimum package size.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

GND

RESET

‡

SENSE

†

OUT

PW PACKAGE

(TOP VIEW)

NC – No internal connection

†

SENSE – Fixed voltage options only

(TPS7325, TPS7330, TPS7333, TPS7348, and TPS7350)

‡

FB – Adjustable version only (TPS7301)

GND

RESET

SENSE

†

/FB

‡

OUT

D OR P PACKAGE

(TOP VIEW)

Summary of content (45 pages)

PAGE 1
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 D Available in 2.5-V, 3-V, 3.3-V, 4.85-V, and 5-V Fixed-Output and Adjustable Versions Integrated Precision Supply-Voltage Supervisor Monitoring Regulator Output Voltage Active-Low Reset Signal with 200-ms Pulse Width Very Low Dropout Voltage . . . Maximum of 35 mV at IO = 100 mA (TPS7350) Low Quiescent Current – Independent of Load .
PAGE 2
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 description (continued) The RESET output of the TPS73xx initiates a reset in microcomputer and microprocessor systems in the event of an undervoltage condition. An internal comparator in the TPS73xx monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage.
PAGE 3
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TPS73xxY chip information These chips, when properly assembled, display characteristics similar to those of the TPS73xxQ. Thermal compression or ultrasonic bonding may be used on the doped aluminum bonding pads. Chips may be mounted with conductive epoxy or a gold-silicon preform.
PAGE 4
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 timing diagram VI Vres† Vres t VO VIT + VIT + Threshold Voltage VIT – VIT – t RESET Output Output Undefined ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ 200 ms Delay 200 ms Delay ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ Output Undefined t † Vres is the minimum input voltage for a valid RESET.
PAGE 5
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 DISSIPATION RATING TABLE 1 – FREE-AIR TEMPERATURE (SEE FIGURE 3) TA ≤ 25°C POWER RATING DERATING FACTOR ABOVE TA = 25°C TA = 70°C POWER RATING TA = 125°C POWER RATING D 725 mW 5.8 mW/°C 464 mW 145 mW P 1175 mW 9.4 mW/°C 752 mW 235 mW PW† 700 mW 5.
PAGE 6
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 recommended operating conditions Input voltage, voltage VI† MIN MAX TPS7301Q 2.47 10 TPS7325Q 3.1 10 TPS7330Q 3.5 10 TPS7333Q 3.77 10 TPS7348Q 5.2 10 TPS7350Q 5.33 10 High-level input voltage at EN, VIH 2 Low-level input voltage at EN, VIL Output current range, IO 0 UNIT V V V V 0.
PAGE 7
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 electrical characteristics at IO = 10 mA, EN = 0 V, Co = 4.7 µF (CSR‡ = 1 Ω), SENSE/FB shorted to OUT (unless otherwise noted) TEST CONDITIONS§ PARAMETER Ground current (active mode) EN ≤ 0.5 V, 0 mA ≤ IO ≤ 500 mA Input current (standby mode) EN = VI, 2 7 V ≤ VI ≤ 10 V 2.
PAGE 8
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TPS7301Q electrical characteristics at IO = 10 mA, VI = 3.5 V, EN = 0 V, Co = 4.7 µF (CSR† = 1 Ω), FB shorted to OUT at device leads (unless otherwise noted) TEST CONDITIONS‡ PARAMETER Reference voltage (measured at FB) 2.
PAGE 9
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TPS7325Q electrical characteristics at IO = 10 mA, VI = 3.5 V, EN = 0 V, Co = 10 µF (CSR† = 1 Ω), SENSE shorted to OUT (unless otherwise noted) TEST CONDITIONS‡ PARAMETER Output voltage Dropout voltage§ 3.5 V ≤ VI ≤ 10 V, 5 mA ≤ IO ≤ 500 mA IO = 10 mA mA, 97 V VI = 2 2.97 IO = 100 mA, mA VI = 2 2.
PAGE 10
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TPS7330Q electrical characteristics at IO = 10 mA, VI = 4 V, EN = 0 V, Co = 4.7 µF (CSR† = 1 Ω), SENSE shorted to OUT (unless otherwise noted) TEST CONDITIONS‡ PARAMETER Output voltage 4 V ≤ VI ≤ 10 V, 5 mA ≤ IO ≤ 500 mA mA IO = 10 mA, 94 V VI = 2 2.94 IO = 100 mA, mA VI = 2 2.94 94 V IO = 500 mA, mA VI = 2 2.
PAGE 11
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TPS7333Q electrical characteristics at IO = 10 mA, VI = 4.3 V, EN = 0 V, Co = 4.7 µF (CSR† = 1 Ω), SENSE shorted to OUT (unless otherwise noted) TEST CONDITIONS‡ PARAMETER Output voltage 4.3 V ≤ VI ≤ 10 V, 5 mA ≤ IO ≤ 500 mA IO = 10 mA mA, 23 V VI = 3 3.23 IO = 100 mA, mA VI = 3 3.23 23 V IO = 500 mA, mA VI = 3 3.
PAGE 12
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TPS7348Q electrical characteristics at IO = 10 mA, VI = 5.85 V, EN = 0 V, Co = 4.7 µF (CSR† = 1 Ω), SENSE shorted to OUT (unless otherwise noted) TEST CONDITIONS‡ PARAMETER Output voltage 5.85 V ≤ VI ≤ 10 V, 5 mA ≤ IO ≤ 500 mA IO = 10 mA mA, 75 V VI = 4 4.75 IO = 100 mA, mA VI = 4 4.75 75 V IO = 500 mA, mA VI = 4 4.
PAGE 13
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TPS7350Q electrical characteristics at IO = 10 mA, VI = 6 V, EN = 0 V, Co = 4.7 µF (CSR† = 1 Ω), SENSE shorted to OUT (unless otherwise noted) TEST CONDITIONS‡ PARAMETER Output voltage 6 V ≤ VI ≤ 10 V, 5 mA ≤ IO ≤ 500 mA IO = 10 mA mA, 88 V VI = 4 4.88 IO = 100 mA, mA VI = 4 4.88 88 V IO = 500 mA, mA VI = 4 4.
PAGE 14
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 switching characteristics PARAMETER RESET time-out time out delay TJ TEST CONDITIONS See Figure 5 TPS7301Q, TPS7333Q TPS7348Q, TPS7350Q MIN TYP MAX 25°C 140 200 260 – 40°C to 125°C 100 300 UNIT ms electrical characteristics at IO = 10 mA, EN = 0 V, Co = 4.
PAGE 15
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TPS7301Y electrical characteristics at IO = 10 mA, VI = 3.5 V, EN = 0 V, Co = 4.7 µF (CSR† = 1 Ω), TJ = 25°C, FB shorted to OUT at device leads (unless otherwise noted) TEST CONDITIONS‡ PARAMETER Reference voltage (measured at FB) MIN TYP 1.182 MAX UNIT V VI = 2.4 V, VI = 2.4 V, 50 µA ≤ IO ≤ 150 mA 150 mA ≤ IO ≤ 500 mA 0.
PAGE 16
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TPS7325Y electrical characteristics at IO = 10 mA, VI = 3.5 V, EN = 0 V, Co = 10 µF (CSR† = 1 Ω), TJ = 25°C, SENSE shorted to OUT (unless otherwise noted) TEST CONDITIONS‡ PARAMETER Output voltage VI = 2.97 V VI = 2.97 V IO = 500 mA, (2.97 V – VO)/IO, IO = 500 mA VI = 2.97 V VI = 2.97 V, VI = 3.
PAGE 17
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TPS7330Y electrical characteristics at IO = 10 mA, VI = 4 V, EN = 0 V, Co = 4.7 µF (CSR† = 1 Ω), TJ = 25°C, SENSE shorted to OUT (unless otherwise noted) TEST CONDITIONS‡ PARAMETER MIN Output voltage TYP MAX 3 IO = 10 mA, IO = 100 mA, VI = 2.94 V VI = 2.94 V 5.2 IO = 500 mA, (2.94 V – VO)/IO, IO = 500 mA VI = 2.94 V VI = 2.
PAGE 18
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TPS7348Y electrical characteristics at IO = 10 mA, VI = 5.85 V, EN = 0 V, Co = 4.7 µF (CSR† = 1 Ω), TJ = 25°C, SENSE shorted to OUT (unless otherwise noted) TEST CONDITIONS‡ PARAMETER Output voltage MIN TYP 4.85 IO = 10 mA, IO = 100 mA, VI = 4.75 V VI = 4.75 V 2.9 IO = 500 mA, (4.75 V – VO)/IO, IO = 500 mA VI = 4.75 V VI = 4.
PAGE 19
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TPS7350Y electrical characteristics at IO = 10 mA, VI = 6 V, EN = 0 V, Co = 4.7 µF (CSR† = 1 Ω), TJ = 25°C, SENSE shorted to OUT (unless otherwise noted) TEST CONDITIONS‡ PARAMETER Output voltage MIN TYP MAX 5 UNIT V IO = 10 mA, IO = 100 mA, VI = 4.88 V VI = 4.88 V 2.9 6 27 35 IO = 500 mA, (4.
PAGE 20
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 PARAMETER MEASUREMENT INFORMATION VO VIT+ t VI IN RESET EN SENSE OUT 0.1 µF Reset + GND VO 10 µF RESET RESET Timeout Delay CSR t TEST CIRCUIT VOLTAGE WAVEFORMS Figure 5. Test Circuit and Voltage Waveforms VI To Load IN OUT SENSE EN + CO GND Ccer† RL CSR † Ceramic capacitor Figure 6.
PAGE 21
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TYPICAL CHARACTERISTICS Table of Graphs IQ Quiescent current IQ Quiescent current TPS7348 vs Output current 7 vs Input voltage 8 vs Free-air temperature 10 vs Free-air temperature 11 IQ Quiescent current VDO ∆VDO Dropout voltage vs Output current 12 Change in dropout voltage vs Free-air temperature 13 VDO ∆VO Dro
PAGE 22
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TYPICAL CHARACTERISTICS QUIESCENT CURRENT vs INPUT VOLTAGE QUIESCENT CURRENT vs OUTPUT CURRENT 500 450 450 425 TPS73xx, VI = 10 V I Q – Quiescent Current – µ A I Q – Quiescent Current – µ A TA = 25°C IO = 500 mA TA = 25°C 400 375 TPS7350, VI = 6 V 350 325 TPS7348, VI = 5.85 V TPS7333, VI = 4.
PAGE 23
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TYPICAL CHARACTERISTICS TPS7325 QUIESCENT CURRENT vs FREE-AIR TEMPERATURE DROPOUT VOLTAGE vs OUTPUT CURRENT 500 0.3 IL = 750 mA TA = 25°C TPS7330 0.25 TPS7333 400 Dropout Voltage – V I Q– Quiescent Current – µ A 450 VI = 10 V 350 300 VI = 3.5 V 0.2 TPS7325 0.15 TPS7348 0.1 TPS7350 250 0.
PAGE 24
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TYPICAL CHARACTERISTICS OUTPUT VOLTAGE vs INPUT VOLTAGE CHANGE IN OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE 6 15 TA = 25°C IO = 500 mA VI = VO(nom) + 1 V IO = 100 mA TPS7350 5 10 VO – Output Voltage – V ∆ VO – Change in Output Voltage – mV 20 5 0 –5 – 10 TPS7348 4 3 TPS7333 TPS7301 With VO Programmed to 2.
PAGE 25
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TYPICAL CHARACTERISTICS TPS7301 TPS7325 OUTPUT VOLTAGE vs OUTPUT CURRENT OUTPUT VOLTAGE vs OUTPUT CURRENT 2.52 2.515 2.515 2.51 VO – Output Voltage – V VO – Output Voltage – V 2.52 TA = 25°C VO Programmed to 2.5 V 2.505 2.5 VI = 3.5 V 2.495 VI = 10 V 2.49 2.51 VI = 10 V 2.505 2.5 2.495 VI = 3.5 V 2.49 2.485 2.485 2.
PAGE 26
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TYPICAL CHARACTERISTICS TPS7348 TPS7350 OUTPUT VOLTAGE vs OUTPUT CURRENT OUTPUT VOLTAGE vs OUTPUT CURRENT 5.06 4.92 4.9 5.04 4.89 5.03 VO – Output Voltage – V VO – Output Voltage – V 5.05 TA = 25°C 4.91 4.88 4.87 VI = 5.85 V 4.86 4.85 VI = 10 V 4.84 5.02 5.01 4.99 4.82 4.96 4.81 4.95 4.
PAGE 27
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TYPICAL CHARACTERISTICS LOAD TRANSIENT RESPONSE 200 100 0 TA = 25°C VI = 6 V CI = 0 Co = 4.7 µF (CSR = 1 Ω) – 100 – 200 105 55 5 0 100 200 300 400 – 45 500 I O – Output Current – mA ∆VO – Change in Output Voltage – mV TPS7301 (WITH VO PROGRAMMED TO 2.
PAGE 28
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TYPICAL CHARACTERISTICS 200 100 0 VI = 6 V CI = 0 Co = 4.7 µF CSR = 1 Ω TA = 25°C – 100 – 200 105 55 5 0 100 200 300 400 – 45 500 I O – Output Current – mA ∆VO – Change in Output Voltage – mV TPS7348 OR TPS7350 LOAD TRANSIENT RESPONSE t – Time – µs TPS7301 WITH VO PROGRAMMED TO 2.
PAGE 29
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TYPICAL CHARACTERISTICS 200 100 0 – 50 TA = 25°C CI = 0 Co = 4.7 µF (CSR = 1 Ω) – 100 6.5 6.25 6 0 100 200 300 400 5.75 500 V I – Input Voltage – V ∆VO – Change in Output Voltage – mV TPS7333 LINE TRANSIENT RESPONSE t – Time – µs Figure 30 100 50 0 – 50 TA = 25°C CI = 0 Co = 4.7 µF (CSR = 1 Ω) – 100 6.5 6.
PAGE 30
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TYPICAL CHARACTERISTICS RIPPLE REJECTION vs FREQUENCY OUTPUT SPECTRAL-NOISE DENSITY vs FREQUENCY 60 TPS7333 TPS7348/ TPS7350 Output Spectral-Noise Density – µV/ Hz Ripple Rejection – dB 50 40 10 TA = 25°C No Input Capacitance Added VI = VO + 1 V IO = 100 mA Co = 4.7 µF (CSR = 1) TPS7301 With VO Programmed to 2.
PAGE 31
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TYPICAL CHARACTERISTICS TYPICAL REGIONS OF STABILITY TYPICAL REGIONS OF STABILITY COMPENSATION SERIES RESISTANCE (CSR)† vs OUTPUT CURRENT COMPENSATION SERIES RESISTANCE (CSR)† vs ADDED CERAMIC CAPACITANCE 100 Region of Instability CSR – Compensation Series Resistance – Ω CSR – Compensation Series Resistance – Ω 100 10 TA = 25°C
PAGE 32
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 TYPICAL CHARACTERISTICS NEGATIVE-GOING RESET THRESHOLD vs FREE-AIR TEMPERATURE RESET OUTPUT CURRENT vs INPUT VOLTAGE 4 IL = 10 mA VOL ≤ 0.4 V TA = 25°C 3.5 I OL – RESET Output Current – mA VIT– – Negative-Going Reset Threshold – mV 15 10 5 0 –5 ÁÁ ÁÁ – 10 – 15 – 50 3 2.5 2 TPS7350 1.5 TPS7348 1 TPS7333 0.
PAGE 33
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 THERMAL INFORMATION In response to system-miniaturization trends, integrated circuits are being offered in low-profile and fine-pitch surface-mount packages. Implementation of many of today’s high-performance devices in these packages requires special attention to power dissipation.
PAGE 34
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 THERMAL INFORMATION Comparing PD(total) with PD(max) reveals that the power dissipation in this example does not exceed the maximum limit. When it does, one of two corrective actions can be taken. The power-dissipation limit can be raised by increasing either the airflow or the heat-sink area.
PAGE 35
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 APPLICATION INFORMATION The TPS73xx series of low-dropout (LDO) regulators overcome many of the shortcomings of earlier generation LDOs, while adding features such as a power-saving shutdown mode and a supply-voltage supervisor. The TPS73xx family includes five fixed-output voltage regulators: the TPS7325 (2.
PAGE 36
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 APPLICATION INFORMATION external capacitor requirements (continued) As with most LDO regulators, the TPS73xx family requires an output capacitor for stability. A low-ESR 10-µF solid-tantalum capacitor connected from the regulator output to ground is sufficient to ensure stability over the full load range (see Figure 42).
PAGE 37
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 APPLICATION INFORMATION external capacitor requirements (continued) TPS73xxPW† 8 VI IN RESET IN SENSE 9 To System Reset 15 10 IN 0.1 µF 20 OUT 6 EN OUT 250 kΩ 14 VO 13 + GND 1 2 3 10 µF CSR = 1 Ω † TPS7333, TPS7348, TPS7350 (fixed-voltage options) Figure 47.
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TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 APPLICATION INFORMATION Resistors R1 and R2 should be chosen for approximately 7-µA divider current. A recommended value for R2 is 169 kΩ with R1 adjusted for the desired output voltage. Smaller resistors can be used, but offer no inherent advantage and consume more power.
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TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION SLVS124F – JUNE 1995 – REVISED JANUARY 1999 APPLICATION INFORMATION undervoltage supervisor function (continued) Transient loads or line pulses can also cause a reset to occur if proper care is not taken in selecting the input and output capacitors. Load transients that are faster than 5 µs can cause a reset if high-ESR output capacitors (greater than approximately 7 Ω) are used.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 28-Aug-2008 Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty TPS7350QPWR ACTIVE TSSOP PW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS7350QPWRG4 ACTIVE TSSOP PW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Lead/Ball Finish MSL Peak Temp (3) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TPS7301QDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TPS7301QPWR TSSOP PW 20 2000 330.0 16.4 6.95 7.1 1.6 8.0 16.0 Q1 TPS7325QPWR TSSOP PW 20 2000 330.0 16.4 6.95 7.1 1.6 8.0 16.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS7301QDR SOIC D 8 2500 367.0 367.0 35.0 TPS7301QPWR TSSOP PW 20 2000 367.0 367.0 38.0 TPS7325QPWR TSSOP PW 20 2000 367.0 367.0 38.0 TPS7330QDR SOIC D 8 2500 367.0 367.0 35.0 TPS7330QPWR TSSOP PW 20 2000 367.0 367.0 38.0 TPS7333QDR SOIC D 8 2500 367.0 367.0 35.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.