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LDO Regulator Pos 1.2V to 5.5V 1A Automotive 8-Pin VSON EP T/R

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TPS78501QWDRBRQ1 General Description

The TPS785-Q1 ultra low-dropout regulator (LDO) is a small, low quiescent current LDO that can source 1 A with excellent line and load transient performance.

The low output noise and great PSRR performance make the device suitable to power-sensitive analog loads. The TPS785-Q1 is a flexible device for post regulation because this device supports an input voltage range from 1.7 V to 6.0 V and offers an adjustable output range of 1.2 V to 5.5 V. The device also features fixed output voltages from 0.65 V to 5.0 V for powering common voltage rails.

The TPS785-Q1 offers foldback current limit to reduce power dissipation during a over current condition. The EN input helps with power sequencing requirements of the system. The internal soft-start provides a controlled start up reducing the inrush current allowing for lower input capacitance to be used.

The TPS785-Q1 provides an active pulldown circuit to quickly discharge output loads when disabled.

Key Features

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Device junction temperature: –40°C to +150°C, TJ
  • Input voltage range: 1.7 V to 6.0 V
  • Available output voltages:
    • Adjustable option: 1.2 V to 5.5 V
    • Fixed options: 0.65 V to 5.0 V
  • Output accuracy: 0.5% typical, 1.7% maximum
  • Low IQ: 25 µA (typical)
  • Ultra-low dropout:
    • 315 mV (max) at 1 A (3.3 VOUT)
  • Internal 550 µs soft-start time to reduce inrush current
  • Active output discharge
  • Packages:
    • 3-mm × 3-mm wettable flank VSON (8)
    • 5-pin TO-252, RθJA = 31.6°C/W


Output options Adjustable Output, Fixed Output Iout (max) (A) 1
Vin (max) (V) 6 Vin (min) (V) 1.7
Vout (max) (V) 5.5 Vout (min) (V) 0.75
Fixed output options (V) 0.75, 1, 1.1, 1.2, 1.8, 2.5, 3.3, 5 Noise (µVrms) 30
Iq (typ) (mA) 0.025 Thermal resistance θJA (°C/W) 31.6, 50.3
TI functional safety category Functional Safety-Capable Rating Automotive
Load capacitance (min) (µF) 1 Regulated outputs (#) 1
Features Enable, Wettable flanks package Accuracy (%) 0.5
PSRR at 100 KHz (dB) 45 Dropout voltage (Vdo) (typ) (mV) 315
Operating temperature range (°C) -40 to 150 Pin Count 9
Package Category Small Outline No-lead Released Date Jul 28, 2021
Last Modified Date Mar 7, 2023 4:10 PM UTC


Shipping Method

Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.

Delivery Time

The delivery time is usually within 2-7 days, depending on the logistics provider and the area of delivery.

The following are the estimated delivery times of some logistics service providers.

  • DHL

  • Fedex

  • UPS

  • EMS

  • Registered Air Mail


We accept TT prepayment (bank transfer), paypal, credit cards, Western Union, Money Gram.

Checks and other instruments are not supported to pay for orders and customers are required to pay all possible fees, including sales tax,
customs fees, etc.

  • Wire Transfer

  • Paypal

  • Credit Card

  • Western Union

  • Money Gram


Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.
  • ESD


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Buying Guide

  • What is the lifespan of TPS78501QWDRBRQ1?

    The lifespan of TPS78501QWDRBRQ1 depends on various factors such as the quality of materials used, operating conditions, and the manufacturer's recommended usage time. The datasheet provided by the manufacturer specifies the expected lifespan of the product.

  • Where can I find the full specification of TPS78501QWDRBRQ1?

    You can find it with PDF Datasheet for TPS78501QWDRBRQ1 on this page. If it is not available, you can contact Avaq at [email protected] to inquire about the Datasheet for this part.

  • How to check the quality of TPS78501QWDRBRQ1?

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  • Can I purchase samples for testing?

    Avaq offers free samples for customers to test. This can often help you determine whether the chip or component meets your needs.

  • Where can I check the delivery after the order is completed?

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