Product details


Output options Fixed Output Iout (Max) (A) 0.3 Vin (Max) (V) 40 Vin (Min) (V) 11 Vout (Max) (V) 5 Vout (Min) (V) 3.3 Fixed output options (V) 3.3, 5.5 Iq (Typ) (mA) 0.02 Thermal resistance θJA (°C/W) 29 Load capacitance (Min) (µF) 1 Rating Automotive Regulated outputs (#) 1 Features Accuracy (%) 2 PSRR @ 100 KHz (dB) 40 Dropout voltage (Vdo) (Typ) (mV) 300 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

TO-252 (KVU) 3 67 mm² 6.6 x 10.11 open-in-new Find other Linear regulators (LDO)


  • Low dropout voltage:
    • 300 mV at IOUT = 150 mA
  • 7-V to 40-V wide input voltage range
    with up to 45-V transients
  • 300-mA maximum output current
  • 25-µA (typical) ultralow quiescent current at light loads
  • 3.3-V and 5-V fixed output voltage with ±2% tolerance
  • Low-ESR ceramic output stability capacitor
  • Integrated fault protection:
    • Short-circuit and overcurrent protection
    • Thermal shutdown
  • Low input-voltage tracking
  • Thermally enhanced power package:
    • 3-Pin TO-252 (KVU, DPAK)

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The TPS7A65-Q1 low-dropout linear voltage regulator is designed for low power consumption and quiescent current less than 25 µA in light-load applications. This device features integrated overcurrent protection and a design to achieve stable operation even with low-ESR ceramic output capacitors. A low-voltage tracking feature allows for a smaller input capacitor and can possibly eliminate the need of using a boost converter during cold crank conditions. Because of these features, this device is well-suited in power supplies for various automotive applications.










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Technical documentation

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Type Title Date
* Data sheet TPS7A65-Q1 300-mA, 40-V, Low-Dropout Regulator With 25-µA Quiescent Current datasheet (Rev. F) Feb. 11, 2020
Technical article LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical article LDO Basics: Preventing reverse current Jul. 25, 2018
Technical article LDO basics: introduction to quiescent current Jun. 20, 2018
Technical article LDO basics: noise – part 1 Jun. 14, 2017
User guide TPS7A6550 EVM User’s Guide Aug. 12, 2010

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 Texas Instruments TPS7A6550EVM evaluation module (EVM) helps designers evaluate the operation and performance of the TPS7A6550-Q1 Low-Dropout Linear Regulator. The device offers low power consumption and stable operation even when using low-ESR ceramic output capacitors.
  • 4 V to 40 V Operating Range, Withstands Transients up to 45 V
  • Low Dropout Voltage
    • 300mV at IOUT = 150mA
  • 5-V Fixed Output Voltage
  • 300 mA Maximum Load Current
  • 25 uA Typical Quiescent Current
  • Low-ESR Ceramic Output Capacitor Stability
  • Integrated Fault Protection
    • Short-Circuit/Over-Current Protection
    • Thermal (...)

Design tools & simulation

SLVM561.ZIP (16 KB) - PSpice Model
SLVM902.ZIP (23 KB) - PSpice Model

Reference designs

Flexible Interface (PRU-ICSS) Reference Design for Simultaneous, Coherent DAQ Using Multiple ADCs
TIDA-01555 — This reference design showcases an interface implementation for connecting multiple high voltage bipolar input, 8-channel, mux-input SAR ADCs (6) with the Sitara Arm processors for expanding the number of input channels using Programmable Real-time Unit (PRU-ICSS). ADCs are configured for (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
TO-252 (KVU) 3 View options

Ordering & quality

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