Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - LDO voltage regulator Positive, fixed SOT 23 5

TPS731xx

GNDEN NR

IN OUT

OUT

Optional Optional

Optional

OFF

DBVPACKAGE

SOT23

(TOPVIEW)

OUT

NR/FB

GND

TypicalApplicationCircuitforFixed-VoltageVersions

TPS731xx

www.ti.com

.......................................................................................................................................... SBVS034M –SEPTEMBER 2003–REVISED AUGUST 2009

Cap-Free, NMOS, 150mA Low Dropout Regulator

with Reverse Current Protection

FEATURES

DESCRIPTION

• Stable with No Output Capacitor or Any Value

The TPS731xx family of low-dropout (LDO) linear

or Type of Capacitor

voltage regulators uses a new topology: an NMOS

pass element in a voltage-follower configuration. This

• Input Voltage Range of 1.7V to 5.5V

topology is stable using output capacitors with low

• Ultralow Dropout Voltage: 30mV Typ

ESR, and even allows operation without a capacitor.

• Excellent Load Transient Response—with or

It also provides high reverse blockage (low reverse

without Optional Output Capacitor

current) and ground pin current that is nearly constant

over all values of output current.

• New NMOS Topology Provides Low Reverse

Leakage Current

The TPS731xx uses an advanced BiCMOS process

to yield high precision while delivering very low

• Low Noise: 30μV

RMS

Typ (10kHz to 100kHz)

dropout voltages and low ground pin current. Current

• 0.5% Initial Accuracy

consumption, when not enabled, is under 1μA and

• 1% Overall Accuracy over Line, Load, and

ideal for portable applications. The extremely low

Temperature

output noise (30μV

RMS

with 0.1μF C

) is ideal for

powering VCOs. These devices are protected by

• Less Than 1μA Max I

in Shutdown Mode

thermal shutdown and foldback current limit.

• Thermal Shutdown and Specified Min/Max

Current Limit Protection

• Available in Multiple Output Voltage Versions

– Fixed Outputs of 1.20V to 5.0V

– Adjustable Outputs from 1.20V to 5.5V

– Custom Outputs Available

APPLICATIONS

• Portable/Battery-Powered Equipment

• Post-Regulation for Switching Supplies

• Noise-Sensitive Circuitry such as VCOs

• Point of Load Regulation for DSPs, FPGAs,

ASICs, and Microprocessors

space

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.

2All 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 (24 pages)

PAGE 1
TPS731xx www.ti.com .......................................................................................................................................... SBVS034M – SEPTEMBER 2003 – REVISED AUGUST 2009 Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection FEATURES DESCRIPTION • The TPS731xx family of low-dropout (LDO) linear voltage regulators uses a new topology: an NMOS pass element in a voltage-follower configuration.
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TPS731xx SBVS034M – SEPTEMBER 2003 – REVISED AUGUST 2009 .......................................................................................................................................... www.ti.com 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.
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TPS731xx www.ti.com .......................................................................................................................................... SBVS034M – SEPTEMBER 2003 – REVISED AUGUST 2009 ELECTRICAL CHARACTERISTICS Over operating temperature range (TJ = -40°C to +125°C), VIN = VOUT(nom) + 0.5V (1), IOUT = 10mA, VEN = 1.7V, and COUT = 0.1μF, unless otherwise noted. Typical values are at TJ = +25°C.
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TPS731xx SBVS034M – SEPTEMBER 2003 – REVISED AUGUST 2009 .......................................................................................................................................... www.ti.com FUNCTIONAL BLOCK DIAGRAMS IN 4MHz Charge Pump EN Thermal Protection Ref Servo 27kΩ Bandgap Error Amp Current Limit OUT 8kΩ GND R1 R1 + R2 = 80kΩ R2 NR Figure 1. Fixed Voltage Version IN Table 1.
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TPS731xx www.ti.com .......................................................................................................................................... SBVS034M – SEPTEMBER 2003 – REVISED AUGUST 2009 PIN CONFIGURATION DBV PACKAGE SOT23 (TOP VIEW) IN 1 GND 2 EN 3 5 OUT 4 NR/FB PIN DESCRIPTIONS NAME SOT23 (DBV) PIN NO. DESCRIPTION IN 1 Input supply GND 2 Ground EN 3 Driving the enable pin (EN) high turns on the regulator.
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TPS731xx SBVS034M – SEPTEMBER 2003 – REVISED AUGUST 2009 .......................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS For all voltage versions at TJ= +25°C, VIN = VOUT(nom) + 0.5V, IOUT = 10mA, VEN = 1.7V, and COUT = 0.1μF, unless otherwise noted. LOAD REGULATION LINE REGULATION 0.5 0.20 Referred to IOUT = 10mA 0.4 Change in VOUT (%) 0.3 Change in VOUT (%) Referred to VIN = VOUT + 0.
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TPS731xx www.ti.com .......................................................................................................................................... SBVS034M – SEPTEMBER 2003 – REVISED AUGUST 2009 TYPICAL CHARACTERISTICS (continued) For all voltage versions at TJ= +25°C, VIN = VOUT(nom) + 0.5V, IOUT = 10mA, VEN = 1.7V, and COUT = 0.1μF, unless otherwise noted.
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TPS731xx SBVS034M – SEPTEMBER 2003 – REVISED AUGUST 2009 .......................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS (continued) For all voltage versions at TJ= +25°C, VIN = VOUT(nom) + 0.5V, IOUT = 10mA, VEN = 1.7V, and COUT = 0.1μF, unless otherwise noted.
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TPS731xx www.ti.com .......................................................................................................................................... SBVS034M – SEPTEMBER 2003 – REVISED AUGUST 2009 TYPICAL CHARACTERISTICS (continued) For all voltage versions at TJ= +25°C, VIN = VOUT(nom) + 0.5V, IOUT = 10mA, VEN = 1.7V, and COUT = 0.1μF, unless otherwise noted. TPS73133 LOAD TRANSIENT RESPONSE VIN = 3.
PAGE 10
TPS731xx SBVS034M – SEPTEMBER 2003 – REVISED AUGUST 2009 .......................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS (continued) For all voltage versions at TJ= +25°C, VIN = VOUT(nom) + 0.5V, IOUT = 10mA, VEN = 1.7V, and COUT = 0.1μF, unless otherwise noted.
PAGE 11
TPS731xx www.ti.com .......................................................................................................................................... SBVS034M – SEPTEMBER 2003 – REVISED AUGUST 2009 APPLICATION INFORMATION The TPS731xx belongs to a family of new generation LDO regulators that use an NMOS pass transistor to achieve ultra-low-dropout performance, reverse current blockage, and freedom from output capacitor constraints.
PAGE 12
TPS731xx SBVS034M – SEPTEMBER 2003 – REVISED AUGUST 2009 .......................................................................................................................................... www.ti.com An internal 27kΩ resistor in series with the noise reduction pin (NR) forms a low-pass filter for the voltage reference when an external noise reduction capacitor, CNR, is connected from NR to ground. For CNR = 10nF, the total noise in the 10Hz to 100kHz bandwidth is reduced by a factor of ~3.
PAGE 13
TPS731xx www.ti.com .......................................................................................................................................... SBVS034M – SEPTEMBER 2003 – REVISED AUGUST 2009 TRANSIENT RESPONSE The low open-loop output impedance provided by the NMOS pass element in a voltage follower configuration allows operation without an output capacitor for many applications.
PAGE 14
TPS731xx SBVS034M – SEPTEMBER 2003 – REVISED AUGUST 2009 .......................................................................................................................................... www.ti.com POWER DISSIPATION P D + (VIN * VOUT) I OUT The ability to remove heat from the die is different for each package type, presenting different considerations in the PCB layout. The PCB area around the device that is free of other components moves the heat from the device to the ambient air.
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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.com 3-Oct-2013 continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
PAGE 19
PACKAGE MATERIALS INFORMATION www.ti.com 30-Dec-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) TPS73101DBVR SOT-23 DBV 5 3000 178.0 9.0 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3.23 3.17 1.37 4.0 8.0 Q3 TPS73101DBVT SOT-23 DBV 5 250 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 TPS731125DBVR SOT-23 DBV 5 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 30-Dec-2013 Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) TPS73150DBVR SOT-23 DBV 5 3000 178.0 9.0 TPS73150DBVT SOT-23 DBV 5 250 178.0 9.0 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3.23 3.17 1.37 4.0 8.0 Q3 3.23 3.17 1.37 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 30-Dec-2013 Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS73132DBVT SOT-23 DBV 5 250 203.0 203.0 35.0 TPS73133DBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 TPS73133DBVT SOT-23 DBV 5 250 180.0 180.0 18.0 TPS73150DBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 TPS73150DBVT SOT-23 DBV 5 250 180.0 180.0 18.
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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.