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TPS709 ACTIVE 150-mA, 30-V, ultra-low-IQ, low-dropout voltage regulator with reverse current protection and enable Alternative product with ultra-low-IQ and reverse current protection

Product details


Output options Fixed Output Iout (Max) (A) 0.15 Vin (Max) (V) 26 Vin (Min) (V) 6 Vout (Max) (V) 12 Vout (Min) (V) 5 Fixed output options (V) 5, 8, 10, 12 Noise (uVrms) 500 Iq (Typ) (mA) 1 Thermal resistance θJA (°C/W) 108 Load capacitance (Min) (µF) 10 Rating Catalog Regulated outputs (#) 1 Features Enable Accuracy (%) 2.5 Dropout voltage (Vdo) (Typ) (mV) 600 Operating temperature range (C) 0 to 125 open-in-new Find other Linear & low-dropout (LDO) regulators

Package | Pins | Size

SOIC (D) 8 19 mm² 3.91 x 4.9 TO-220 (KCS) 3 88 mm² 10.15 x 15.4 TO-252 (KVU) 3 67 mm² 6.6 x 10.11 TO-263 (KTT) 3 155 mm² 10.16 x 15.24 TO-92 (LP) 3 19 mm² 5.2 x 3.68 open-in-new Find other Linear & low-dropout (LDO) regulators


  • Very Low Dropout Voltage, Less Than 0.6 V at 150 mA
  • Very Low Quiescent Current
  • TTL- and CMOS-Compatible Enable on TL751L Series
  • 60-V Load-Dump Protection
  • Reverse Transient Protection Down to –50 V
  • Internal Thermal-Overload Protection
  • Overvoltage Protection
  • Internal Overcurrent-Limiting Circuitry
  • Less Than 500-µA Disable (TL751L Series)

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The TL750L and TL751L series of fixed-output voltage regulators offer 5-V, 8-V, 10-V, and 12-V options. The TL751L series also has an enable (ENABLE) input. When ENABLE is high, the regulator output is placed in the high-impedance state. This gives the designer complete control over power up, power down, or emergency shutdown.

The TL750L and TL751L series are low-dropout positive-voltage regulators specifically designed for battery-powered systems. These devices incorporate overvoltage and current-limiting protection circuitry, along with internal reverse-battery protection circuitry to protect the devices and the regulated system. The series is fully protected against 60-V load-dump and reverse-battery conditions. Extremely low quiescent current during full-load conditions makes these devices ideal for standby power systems.

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Technical documentation

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Type Title Date
* Data sheet TL750L, TL751L Low-Dropout Voltage Regulators datasheet (Rev. U) Sep. 28, 2009
Application note LDO Noise Demystified (Rev. B) Aug. 18, 2020
User guide MLTLDO2EVM-037 Evaluation Module User's Guide May 22, 2020
Application note A Topical Index of TI LDO Application Notes (Rev. F) Jun. 27, 2019
Application note Fundamental Theory of PMOS LDO Voltage Regulators (Rev. A) Aug. 17, 2018
Application note LDO PSRR Measurement Simplified (Rev. A) Aug. 09, 2017
Application note A Topical Index of TI Supply Voltage Supervisor (SVS) Application Notes Jun. 15, 2015
Application note Techniques for accurate PSRR measurements Oct. 28, 2013
Application note AN-1028 Maximum Power Enhancement Techniques for Power Packages (Rev. B) May 06, 2013
Application note AN-1482 LDO Regulator Stability Using Ceramic Output Capacitors (Rev. A) Apr. 25, 2013
Application note AN-1950 Silently Powering Low Noise Applications (Rev. A) Apr. 22, 2013
Application note LDO Performance Near Dropout Oct. 08, 2010
Application note Linear and Switching Voltage Regulator Fundamental Part 1 Mar. 21, 2007
Application note Technical Review of Low Dropout Voltage Regulator Operation And Performance Aug. 30, 1999

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The MLTLDO2EVM-037 multipackage low-dropout (LDO) evaluation module (EVM) allows design engineers to evaluate the operation and performance of several common packages of linear regulators for possible use in their own circuit application. This EVM configuration contains a DDA, 3-pin and 5-pin KVU (...)

  • Supports most LDO linear regulators in
    • DDA package
    • 3-pin and 5-pin KVU package
    • DCY package

Reference designs

Universal buck converter reference design for educational purposes
PMP30595 — This universal buck converter reference design features a voltage mode buck converter in combination with a tiny, onboard electronics load to demonstrate the relationship in between small signal analysis in frequency domain (= network analysis) and large signal analysis in time domain (= transient (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
DDPAK/TO-263 (KTT) 3 View options
SOIC (D) 8 View options
TO-220 (KCS) 3 View options
TO-252 (KVU) 3 View options
TO-92 (LP) 3 View options

Ordering & quality

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  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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Support & training

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