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LDO Regulator Pos 5V 0.3A Automotive 16-Pin HTSSOP EP T/R

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TPS7B6350QPWPRQ1 General Description

In automotive microcontroller or microprocessor power-supply applications, the watchdog is used to monitor the microcontroller working status to prevent software runaway. The watchdog must be independent of the microcontroller in a reliable system.

The TPS7B63xx-Q1 is a family of 300-mA watchdog low-dropout regulators (LDOs) designed for an operating voltage up to 40 V, with typical quiescent current of only 19 µA at light load. The devices integrate a programmable function for selecting a window watchdog or standard watchdog, with an external resistor to set the watchdog time within 10% accuracy.

The PG pin on the TPS7B63xx-Q1 devices indicate when the output voltage is stable and in regulation. The power-good delay period and power-good threshold can be adjusted by selecting external components. The devices also feature integrated short-circuit and overcurrent protection. The combination of such features makes these devices particularly flexible and suitable to supply microcontroller in automotive applications.


Key Features

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, TA
  • Maximum output current: 300 mA
  • 4-V to 40-V wide VIN input-voltage range with up to 45-V transients
  • Fixed 3.3-V and 5-V outputs
  • Maximum dropout voltage: 400 mV at 300 mA
  • Stable with output capacitor in wide range of capacitance (4.7 µF to 500 µF) and ESR (0.001 Ω to 20 Ω)
  • Low quiescent current (I(Q)):
    • < 4 µA when EN is low (shutdown mode)
    • 19 µA typical at light loads with WD_EN high (watchdog disabled)
  • Configurable for window watchdog or standard watchdog
  • Open-to-closed window ratio configurable as 1:1 or 8:1
  • Fully adjustable watchdog period (from 10 ms to 500 ms)
  • 10% accurate watchdog period
  • Dedicated WD_EN pin to control watchdog ON-OFF
  • Fully adjustable power-good threshold and power-good delay period
  • Low input-voltage tracking to UVLO
  • Integrated fault protection
    • Overload current-limit protection
    • Thermal shutdown
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • 16-pin HTSSOP package


Category Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - Linear Mfr Texas Instruments
Series Automotive, AEC-Q100 Package Tape & Reel (TR)Cut Tape (CT)Digi-Reel®
Product Status Active Output Configuration Positive
Output Type Fixed Number of Regulators 1
Voltage - Input (Max) 40V Voltage - Output (Min/Fixed) 5V
Voltage - Output (Max) - Voltage Dropout (Max) 0.4V @ 300mA
Current - Output 300mA Current - Quiescent (Iq) 42 µA
Current - Supply (Max) 98 µA PSRR 60dB ~ 40dB (100Hz ~ 100kHz)
Control Features Enable Protection Features Over Current
Operating Temperature -40°C ~ 150°C (TJ) Mounting Type Surface Mount
Package / Case 16-PowerTSSOP (0.173", 4.40mm Width) Supplier Device Package 16-HTSSOP
Base Product Number TPS7B6350 Output options Fixed Output
Iout (max) (A) 0.3 Vin (max) (V) 40
Vin (min) (V) 4 Vout (max) (V) 5
Vout (min) (V) 3.3 Fixed output options (V) 3.3, 5
Iq (typ) (mA) 0.019 Thermal resistance θJA (°C/W) 40
TI functional safety category Functional Safety-Capable Rating Automotive
Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1
Features Enable, Power good, Watchdog timer Accuracy (%) 2
PSRR at 100 KHz (dB) 55 Dropout voltage (Vdo) (typ) (mV) 300
Operating temperature range (°C) -40 to 125 feature-type LDO
feature-number-of-outputs 1 feature-polarity Positive
feature-accuracy- ±2 feature-process-technology
feature-output-type Fixed feature-output-voltage-v 5
feature-maximum-output-current-a 0.3 feature-minimum-input-voltage-v 4
feature-maximum-input-voltage-v 40 feature-maximum-dropout-voltage-current-v 0.4@300mA|0.325@200mA
feature-line-regulation 10mV feature-load-regulation 20mV
feature-maximum-power-dissipation-mw feature-packaging
feature-rad-hard No feature-pin-count 16
feature-supplier-package HTSSOP EP feature-standard-package-name SOP
feature-cecc-qualified feature-esd-protection
feature-escc-qualified feature-military No
feature-aec-qualified Yes feature-aec-qualified-number AEC-Q100
feature-eccn-code EAR99 feature-svhc No
feature-svhc-exceeds-threshold No


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


  • Tape and Reel

    Tape and Reel

  • Cut Tape

    Cut Tape

  • Tube or Tray

    Tube or Tray


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Buying Guide

  • What is the lifespan of TPS7B6350QPWPRQ1?

    The lifespan of TPS7B6350QPWPRQ1 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 TPS7B6350QPWPRQ1?

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