Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - LDO voltage regulator Positive, fixed HTSSOP 20

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FEATURES DESCRIPTION

OUT

GND

0.1 µF

10 µF

TPS768xx

GND

FB/NC

OUT

D PACKAGE

(Top View)

GND/HSINK

GND

GND/HSINK

FB/NC

OUT

GND/HSINK

PWP PACKAGE

(Top View)

NC = No Internal Connection

TPS768xxQ

SLVS211L – JUNE 1999 – REVISED JANUARY 2006

FAST TRANSIENT RESPONSE, 1-A LOW-DROPOUT VOLTAGE REGULATORS

• Input Voltage Range: 2.7 V to 10 V

This device is designed to have a fast transient

response and be stable with 10 µ F capacitors. This

• Low-Dropout Voltage: 230 mV typical at 1 A

combination provides high performance at a

(TPS76850)

reasonable cost.

• 2% Tolerance Over Specified Conditions for

Since the PMOS device behaves as a low-value

Fixed-Output Versions

resistor, the dropout voltage is very low (typically

• Open Drain Power Good (See TPS767xx for

230 mV at an output current of 1 A for the TPS76850)

Power-On Reset With 200-ms Delay Option)

and is directly proportional to the output current.

• Ultralow 85 µ A Typical Quiescent Current

Additionally, because the PMOS pass element is a

voltage-driven device, the quiescent current is very

• Available in 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V,

low and independent of output loading (typically

3.0-V, 3.3-V, 5.0-V Fixed Output and

85 µ A over the full range of output current, 0 mA to

Adjustable (1.2 V to 5.5 V) Versions

1 A). These two key specifications yield a significant

• Fast Transient Response

improvement in operating life for battery-powered

• Thermal Shutdown Protection

systems. This LDO family also features a shutdown

mode; applying a TTL high signal to EN (enable)

• SOIC-8 (D) and TSSOP-20 (PWP) Package

shuts down the regulator, reducing the quiescent

current to less than 1 µ A at T

= 25 ° C.

Power good (PG) is an active high output, which can

be used to implement a power-on reset or a

low-battery indicator.

Figure 1. Typical Application Configuration

(For Fixed Output Options)

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.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (27 pages)

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TPS768xxQ www.ti.com SLVS211L – JUNE 1999 – REVISED JANUARY 2006 FAST TRANSIENT RESPONSE, 1-A LOW-DROPOUT VOLTAGE REGULATORS FEATURES • • • • • • • • • DESCRIPTION Input Voltage Range: 2.7 V to 10 V Low-Dropout Voltage: 230 mV typical at 1 A (TPS76850) 2% Tolerance Over Specified Conditions for Fixed-Output Versions Open Drain Power Good (See TPS767xx for Power-On Reset With 200-ms Delay Option) Ultralow 85 µA Typical Quiescent Current Available in 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V, 5.
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TPS768xxQ www.ti.com SLVS211L – JUNE 1999 – REVISED JANUARY 2006 This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
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TPS768xxQ www.ti.com SLVS211L – JUNE 1999 – REVISED JANUARY 2006 ELECTRICAL CHARACTERISTICS over recommended operating free-air temperature range, VI = VO(typ)+ 1 V, IO = 1 mA, EN = 0 V, CO = 10 µF (unless otherwise noted). PARAMETER TEST CONDITIONS VOUT Accuracy –40°C ≤ TJ ≤ +125°C, VO + 1 V ≤ VIN ≤ 10V (1), 10 µA ≤ IO ≤ 1A Quiescent current (GND current) EN = 0V Output voltage line regulation (∆VO/VO) (1) (1) (2) MIN TYP MAX (0.98)VO VO (1.
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TPS768xxQ www.ti.com SLVS211L – JUNE 1999 – REVISED JANUARY 2006 FUNCTIONAL BLOCK DIAGRAM—Adjustable Version IN EN PG _ + OUT + _ R1 Vref = 1.1834 V FB/NC R2 GND External to the device FUNCTIONAL BLOCK DIAGRAM—Fixed-Voltage Version IN EN PG _ + OUT + _ R1 Vref = 1.1834 V R2 GND Terminal Functions NAME 4 SOIC-8 (D) PIN NO. TSSOP-20 (PWP) PIN NO.
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TPS768xxQ www.ti.com SLVS211L – JUNE 1999 – REVISED JANUARY 2006 TYPICAL CHARACTERISTICS TPS76833 OUTPUT VOLTAGE vs OUTPUT CURRENT TPS76815 OUTPUT VOLTAGE vs OUTPUT CURRENT 3.2835 1.4985 VI = 4.3 V TA = 25°C 1.4980 3.2825 VO − Output Voltage − V VO − Output Voltage − V 3.2830 3.2820 3.2815 3.2810 3.2805 1.4975 1.4970 1.4965 1.4960 1.4955 3.2800 1.4950 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 IO − Output Current − A 0.8 0.9 1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.
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TPS768xxQ www.ti.com SLVS211L – JUNE 1999 – REVISED JANUARY 2006 TYPICAL CHARACTERISTICS (continued) TPS76815 OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE TPS76825 OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE 1.515 2.515 VI = 3.5 V VI = 2.7 V 2.510 VO − Output Voltage − V VO − Output Voltage − V 1.510 1.505 1.500 IO = 1 A IO = 1 mA 1.495 1.490 2.505 2.500 IO = 1 A 2.495 IO = 1 mA 2.490 2.485 1.485 −60 −40 −20 0 20 40 60 80 2.
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TPS768xxQ www.ti.com SLVS211L – JUNE 1999 – REVISED JANUARY 2006 TYPICAL CHARACTERISTICS (continued) TPS76833 POWER-SUPPLY RIPPLE REJECTION vs FREQUENCY TPS76833 OUTPUT SPECTRAL NOISE DENSITY vs FREQUENCY 10−5 VI = 4.3 V Co = 10 µF IO = 1 A TA = 25°C 80 70 Output Spectral Noise Density − µV Hz PSRR − Power Supply Ripple Rejection − dB 90 60 50 40 30 20 10 0 −10 10 100 1k 10k 100k VI = 4.3 V Co = 10 µF TA = 25°C IO = 7 mA 10−6 IO = 1 A 10−7 10−8 102 1M 103 f − Frequency − Hz Figure 10.
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TPS768xxQ www.ti.com SLVS211L – JUNE 1999 – REVISED JANUARY 2006 TYPICAL CHARACTERISTICS (continued) TPS76833 DROPOUT VOLTAGE vs FREE-AIR TEMPERATURE TPS76815 LINE TRANSIENT RESPONSE VI − Input Voltage − V 103 IO = 1 A 101 2.7 IO = 10 mA 100 ∆ VO − Change in Output Voltage − mV VDO − Dropout Voltage − mV 102 3.7 10−1 IO = 0 Co = 10 µF 10−2 −60 −40 −20 0 20 40 60 80 100 120 140 10 0 Co = 10 µF TA = 25°C −10 0 20 40 60 TA − Free-Air Temperature − °C Figure 15.
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TPS768xxQ www.ti.com SLVS211L – JUNE 1999 – REVISED JANUARY 2006 TYPICAL CHARACTERISTICS (continued) TPS76833 OUTPUT VOLTAGE vs TIME (AT START-UP) TPS76833 LOAD TRANSIENT RESPONSE VO− Output Voltage − V 4 Co = 10 µF TA = 25°C 50 0 −50 −100 Co = 10 µF IO = 1 A TA = 25°C 3 2 1 0 1 Enable Pulse − V I O − Output Current − A ∆ VO − Change in Output Voltage − mV 100 0.5 0 0 100 200 300 400 500 600 700 800 900 1000 t − Time − µs 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 t − Time − ms 0.9 1 Figure 18.
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TPS768xxQ www.ti.com SLVS211L – JUNE 1999 – REVISED JANUARY 2006 TYPICAL CHARACTERISTICS (continued) Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance to CO.
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TPS768xxQ www.ti.com SLVS211L – JUNE 1999 – REVISED JANUARY 2006 APPLICATION INFORMATION The TPS768xxQ family includes eight fixed-output voltage regulators (1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.3 V, and 5.0 V), and offers an adjustable device, the TPS76801 (adjustable from 1.2 V to 5.5 V). DEVICE OPERATION The TPS768xxQ features very low quiescent current, which remains virtually constant even with varying loads.
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TPS768xxQ www.ti.com SLVS211L – JUNE 1999 – REVISED JANUARY 2006 APPLICATION INFORMATION (continued) TPS768xx 6 VI IN 7 C1 0.1 µF PG 16 PG 250 kΩ IN OUT 5 EN OUT 14 VO 13 + Co 10 µF GND 3 Figure 26. Typical Application Circuit (Fixed Versions) The output voltage of the TPS76801 adjustable regulator is programmed using an external resistor divider as shown in Figure 27. The output voltage is calculated using: V O V ref 1 R1 R2 where: Vref = 1.
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TPS768xxQ www.ti.com SLVS211L – JUNE 1999 – REVISED JANUARY 2006 APPLICATION INFORMATION (continued) REGULATOR PROTECTION The TPS768xxQ PMOS-pass transistor has a built-in back diode that conducts reverse currents when the input voltage drops below the output voltage (for example, during power-down). Current is conducted from the output to the input and is not internally limited. When extended reverse voltage is anticipated, external limiting may be appropriate.
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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.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device TPS76801QDR Package Package Pins Type Drawing SOIC D SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 8 2500 330.0 12.4 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 6.4 5.2 2.1 8.0 12.0 Q1 TPS76801QDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TPS76801QPWPR HTSSOP PWP 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 26-Jan-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS76801QDR SOIC D 8 2500 367.0 367.0 35.0 TPS76801QDR SOIC D 8 2500 367.0 367.0 35.0 TPS76801QPWPR HTSSOP PWP 20 2000 367.0 367.0 38.0 TPS76815QDR SOIC D 8 2500 367.0 367.0 35.0 TPS76815QPWPR HTSSOP PWP 20 2000 367.0 367.0 38.0 TPS76818QDR 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 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.