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TPS7A6633QDGNRQ1

TITPS7A6633QDGNRQ1

Texas Instruments
Linear Voltage Regulator IC Positive Fixed 1 Output 150mA 8-HVSSOP
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Overview

The TPS7A6633QDGNRQ1 is a high-voltage, low-dropout (LDO) linear regulator designed for automotive applications with a wide input range from 4V to 40V, capable of handling transients up to 45V. It provides a fixed 3.3V output at 150mA with an ultra-low quiescent current of 12uA at light loads, making it suitable for always-on battery-connected systems.

Why Choose This Part

The device features integrated Power-On Reset with a programmable delay and an integrated watchdog, reducing external component count for system monitoring. Its AEC-Q100 Grade 1 qualification and wide junction temperature range of -40C to +150C ensure reliability in extreme automotive thermal environments.

Applications

Automotive Infotainment
Providing clean 3.3V power to head units and display modules while surviving cold-crank and load-dump transients.
Always-On Battery Systems
Ideal for body control modules and security systems where minimal current draw (12uA Iq) is critical to prevent battery drain.
Industrial Sensors
Regulating 24V industrial rails down to 3.3V for microcontrollers and communication interfaces in harsh environments.

Key Specifications

PSRR 60dB ~ 40dB (100Hz ~ 100kHz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Control Features Enable, Power Good
Current - Output 150mA
Protection Features Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO), Watchdog
Number of Regulators 1
Output Configuration Positive
Operating Temperature -40degC ~ 150degC (TJ)
Voltage - Input (Max) 40V
Voltage Dropout (Max) 0.45V @ 150mA
Supplier Device Package 8-HVSSOP
Current - Quiescent (Iq) 20 uA
Voltage - Output (Min/Fixed) 3.3V

Getting Started

Designers should use a low-ESR ceramic output capacitor between 2.2uF and 100uF for stability. Ensure the HVSSOP package thermal pad is soldered to a large PCB ground plane to manage heat dissipation when operating at high input-to-output voltage differentials.

Also Consider

TPS7A6650QDGNRQ1 TITexas Instruments - This is the 5V fixed output version of the same automotive LDO family.

Categories

Power Management > LDO Voltage Regulators Automotive > CAN Bus & Vehicle Networking Automotive > EV & Power Electronics