Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - LDO voltage regulator Positive, fixed TO 263 5

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 

SLVS293D − NOVEMBER 2000 − REVISED MAY 2002

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D 5-A Low-Dropout Voltage Regulator

D Available in 1.5-V, 1.8-V, 2.5-V, and 3.3-V

Fixed-Output and Adjustable Versions

D Open Drain Power-Good (PG) Status

Output (Fixed Options Only)

D Dropout Voltage Typically 250 mV at 5 A

(TPS75533)

D Low 125 µA Typical Quiescent Current

D Fast Transient Response

D 3% Tolerance Over Specified Conditions for

Fixed-Output Versions

D Available in 5-Pin TO−220 and TO−263

Surface-Mount Packages

D Thermal Shutdown Protection

description

The TPS755xx family of 5-A low dropout (LDO) regulators contains four fixed voltage option regulators with

integrated power-good (PG

) and an adjustable voltage option regulator. These devices are capable of supplying

5 A of output current with a dropout of 250 mV (TPS75533). Therefore, the device is capable of performing a

3.3-V to 2.5-V conversion. Quiescent current is 125 µA at full load and drops down to less than 1 µA when the

device is disabled. The TPS755xx is designed to have fast transient response for large load current changes.

t − Time − µs

TPS75515

LOAD TRANSIENT RESPONSE

I − Output Current − A

∆

− Change in Output Voltage − mV

−100

0604020 80 100 140120 160 180 200

−50

= 1.5 V

= 100 µF

−150

1.25 A

100

150

100

150

200

250

300

350

400

−40 −25 −10 5 20 35 50 65 80 95 110 125

− Junction Temperature − °C

− Dropout Voltage − mV

TPS75533

DROPOUT VOLTAGE

JUNCTION TEMPERATURE

= 5 A

= 3.3 V

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.

TO−220 (KC) PACKAGE

(TOP VIEW)

GND

OUTPUT

FB/PG

TO−263 (KTT) PACKAGE

(TOP VIEW)

GND

OUTPUT

FB/PG

Tab is GND

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Summary of content (29 pages)

PAGE 1
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 D 5-A Low-Dropout Voltage Regulator D Available in 1.5-V, 1.8-V, 2.5-V, and 3.
PAGE 2
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 description (continued) Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 250 mV at an output current of 5 A for the TPS75533) and is directly proportional to the output current.
PAGE 3
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 functional block diagram—adjustable version VOUT VIN Current Sense UVLO SHUTDOWN ILIM R1 _ GND + FB EN UVLO R2 Thermal Shutdown VIN External to the Device Bandgap Reference Vref = 1.
PAGE 4
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 TPS755xx PG timing diagram VIN1 VUVLO VUVLO t VOUT VIT +(see Note A) Threshold Voltage VIT − (see Note A) t PG Output t NOTE A: VIT −Trip voltage is typically 9% lower than the output voltage (91%VO). VIT− to VIT+ is the hysteresis voltage. detailed description The TPS755xx family includes four fixed-output voltage regulators (1.5 V, 1.
PAGE 5
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 detailed description (continued) input voltage (IN) The VIN terminal is an input to the regulator. output voltage (OUTPUT) The VOUTPUT terminal is an output to the regulator. absolute maximum ratings over operating junction temperature range (unless otherwise noted)Ĕ Input voltage range‡, VI . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 6
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 electrical characteristics over recommended operating junction temperature range (TJ = −40°C to 125°C), VI = VO(typ) + 1 V, IO = 1 mA, EN = 0 V, CO = 100 µF (unless otherwise noted) PARAMETER TEST CONDITIONS 1.22 V ≤ VO ≤ 5.5 V, Adjustable voltage TJ = 25°C TJ = 0 to 125°C 1.5 V Output TJ = 25°C, 2.8 V ≤ VI ≤ 5.5 V 2.8 V < VI < 5.
PAGE 7
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 electrical characteristics over recommended operating junction temperature range (TJ = −40°C to 125°C), VI = VO(typ) + 1 V, IO = 1 mA, EN = 0 V, CO = 100 µF (unless otherwise noted) (continued) PARAMETER TEST CONDITIONS Input current (EN) MIN EN = VI −1 EN = 0 V −1 High level EN input voltage TYP 0 µA 1 µA V 0.
PAGE 8
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 TYPICAL CHARACTERISTICS TPS75533 TPS75515 OUTPUT VOLTAGE vs OUTPUT CURRENT OUTPUT VOLTAGE vs OUTPUT CURRENT 3.345 1.545 VI = 2.8 V TJ = 25°C VI = 4.3 V TJ = 25°C 1.530 VO − Output Voltage − V VO − Output Voltage − V 3.330 3.315 3.3 3.285 1.515 1.5 1.485 1.470 3.270 3.255 0 1 2 3 4 1.
PAGE 9
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 TYPICAL CHARACTERISTICS TPS755xx TPS75733 GROUND CURRENT vs JUNCTION TEMPERATURE POWER SUPPLY RIPPLE REJECTION vs FREQUENCY 90 150 PSRR − Power Supply Ripple Rejection − dB Ground Current − µ A VI = 5 V IO = 5 A 125 100 75 −40 −25 −10 5 20 35 50 65 80 VI = 4.
PAGE 10
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 TYPICAL CHARACTERISTICS TPS75501 TPS75533 DROPOUT VOLTAGE vs INPUT VOLTAGE DROPOUT VOLTAGE vs JUNCTION TEMPERATURE 450 IO = 5 A VO = 3.3 V 350 TJ = 125°C 350 VDO − Dropout Voltage − mV VDO − Dropout Voltage − mV 400 400 IO = 5 A 300 TJ = 25°C 250 TJ = −40°C 200 150 300 250 200 150 100 100 50 50 0 2.5 3 3.
PAGE 11
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 TPS75533 LINE TRANSIENT RESPONSE VO = 1.5 V Co = 100 µF 100 50 0 −50 −100 di + 1.25 A ms dt 5 −150 0 0 20 40 60 100 VO = 3.3 V IO = 5 A Co = 100 µF 50 0 −50 −100 5.3 4.
PAGE 12
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 TYPICAL CHARACTERISTICS To Load IN VI OUT + EN RL Co GND ESR Figure 18.
PAGE 13
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 THERMAL INFORMATION The amount of heat that an LDO linear regulator generates is directly proportional to the amount of power it dissipates during operation. All integrated circuits have a maximum allowable junction temperature (TJmax) above which normal operation is not assured.
PAGE 14
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 THERMAL INFORMATION Equation 2 summarizes the computation: T J ǒ Ǔ ) R ) R + T ) P Dmax x R A θJC θCS θSA (2) The RθJC is specific to each regulator as determined by its package, lead frame, and die size provided in the regulator’s datasheet. The RθSA is a function of the type and size of heatsink.
PAGE 15
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 THERMAL INFORMATION TO−220 power dissipation The TO−220 package provides an effective means of managing power dissipation in through-hole applications. The TO−220 package dimensions are provided in the Mechanical Data section at the end of the data sheet.
PAGE 16
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 THERMAL INFORMATION TO−220 power dissipation (continued) 0.21 mm 0.21 mm 1 oz. Copper Power Plane 1 oz. Copper Ground Plane Figure 23 From the data in Figure 22 and rearranging equation 4, the maximum power dissipation for a different heatsink RθSA and a specific ambient temperature can be computed (see Figure 24).
PAGE 17
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 THERMAL INFORMATION TO−263 power dissipation The TO−263 package provides an effective means of managing power dissipation in surface mount applications. The TO−263 package dimensions are provided in the Mechanical Data section at the end of the data sheet.
PAGE 18
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 THERMAL INFORMATION TO−263 power dissipation (continued) 2 oz. Copper Solder Pad with 25 Thermal Vias 1 oz. Copper Power Plane 1 oz. Copper Ground Plane Thermal Vias, 0.3 mm Diameter, 1.
PAGE 19
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 APPLICATION INFORMATION programming the TPS75501 adjustable LDO regulator The output voltage of the TPS75501 adjustable regulator is programmed using an external resistor divider as shown in Figure 28. The output voltage is calculated using: V O +V ǒ1 ) R1 Ǔ R2 ref (9) Where: Vref = 1.
PAGE 20
SLVS293D − NOVEMBER 2000 − REVISED MAY 2002 APPLICATION INFORMATION input capacitor For a typical application, a ceramic input bypass capacitor (0.22 µF−1 µF) is recommended to ensure device stability. This capacitor should be as close as possible to the input pin. Due to the impedance of the input supply, large transient currents will cause the input voltage to droop.
PAGE 21
PACKAGE OPTION ADDENDUM www.ti.
PAGE 22
PACKAGE OPTION ADDENDUM www.ti.
PAGE 23
PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production.
PAGE 24
PACKAGE MATERIALS INFORMATION www.ti.com 9-Sep-2013 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 TPS75501KTTR DDPAK/ TO-263 KTT 5 500 330.0 24.4 10.6 15.6 4.9 16.0 24.0 Q2 TPS75501KTTT DDPAK/ TO-263 KTT 5 50 330.0 24.4 10.6 15.6 4.9 16.0 24.0 Q2 TPS75515KTTR DDPAK/ TO-263 KTT 5 500 330.0 24.4 10.6 15.6 4.9 16.0 24.
PAGE 25
PACKAGE MATERIALS INFORMATION www.ti.com 9-Sep-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS75501KTTR DDPAK/TO-263 KTT 5 500 367.0 367.0 45.0 TPS75501KTTT DDPAK/TO-263 KTT 5 50 367.0 367.0 45.0 TPS75515KTTR DDPAK/TO-263 KTT 5 500 367.0 367.0 45.0 TPS75515KTTT DDPAK/TO-263 KTT 5 50 367.0 367.0 45.0 TPS75518KTTR DDPAK/TO-263 KTT 5 500 367.0 367.0 45.
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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 JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.