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TPS7B8233QDGNRQ1

TITPS7B8233QDGNRQ1

Texas Instruments
Linear Voltage Regulator IC Positive Fixed 1 Output 300mA 8-HVSSOP
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Overview

The TPS7B8233QDGNRQ1 is an automotive-grade, low-dropout linear regulator designed to operate from a wide input voltage range of 3V to 40V with transient protection up to 45V. It provides a fixed 3.3V output at up to 300mA while maintaining an ultra-low quiescent current of 2.7 microamps, making it ideal for battery-connected automotive systems that remain active during standby.

Why Choose This Part

This regulator features AEC-Q100 qualification and an extended junction temperature range of -40 to 125 degrees Celsius for harsh environments. Its ultra-low 2.7 microamp quiescent current and stability with low-ESR ceramic capacitors allow for high-efficiency, space-constrained designs with minimal external components.

Applications

Automotive Always-On Power
Supplies power to MCU and CAN/LIN transceivers that must remain active while the ignition is off without draining the vehicle battery.
EV Battery Management Systems
Provides a regulated 3.3V rail from high-voltage bus transients for monitoring and communication ICs.
Industrial Sensor Nodes
Regulates power for field transmitters and sensors operating on 24V industrial loops where low power consumption is critical.

Key Specifications

PSRR 60dB (100Hz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case 8-PowerTSSOP, 8-MSOP (0.118", 3.00mm Width)
Control Features Enable
Current - Output 300mA
Protection Features Over Current, Over Temperature, Short Circuit
Number of Regulators 1
Output Configuration Positive
Operating Temperature -40degC ~ 125degC (TA)
Voltage - Input (Max) 40V
Voltage Dropout (Max) 1.25V @ 300mA
Current - Supply (Max) 6.5 uA
Supplier Device Package 8-HVSSOP
Current - Quiescent (Iq) 5 uA
Voltage - Output (Min/Fixed) 3.3V

Getting Started

To evaluate this LDO, utilize the TPS7B8250EVM evaluation module, noting that while it features the 5V version, the layout and thermal performance are identical for the 3.3V variant. Ensure a ceramic output capacitor between 1 microfarad and 200 microfarads with an ESR between 0.001 and 5 ohms is placed close to the VOUT pin for stability.

Categories

Automotive > EV & Power Electronics