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TLV70233DBVT

TITLV70233DBVT

Texas Instruments
Linear Voltage Regulator IC Positive Fixed 1 Output 300mA SOT-23-5
NRND6,400 in stock
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Overview

The TLV70233DBVT is a low-dropout (LDO) linear regulator from Texas Instruments that provides a fixed 3.3V output from an input range of 2V to 5.5V. It is designed for low-power applications, featuring a low quiescent current of 35 microamps and a high Power Supply Rejection Ratio (PSRR) of 68dB at 1kHz. The device includes internal protection features like thermal shutdown and overcurrent limits in a compact SOT-23-5 package.

Why Choose This Part

This regulator offers an excellent balance of low power consumption and high noise rejection, maintaining stability even with very small 0.1 microfarad ceramic output capacitors. It features built-in reverse polarity protection and under-voltage lockout (UVLO) to protect downstream circuitry from power-up transients and battery-related faults.

Applications

Wireless Handsets and Smartphones
Provides stable 3.3V rails for digital logic and RF components in mobile devices.
ZigBee and Bluetooth Devices
Ideal for low-power wireless nodes requiring clean power for sensitive transceivers.
Li-Ion Battery-Operated Handhelds
Suited for battery-powered equipment where low quiescent current is critical for standby life.
WLAN and PC Add-on Cards
Regulates power for peripheral cards and portable computer accessories.

Key Specifications

PSRR 68dB (1kHz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Control Features Enable
Current - Output 300mA
Protection Features Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
Number of Regulators 1
Output Configuration Positive
Operating Temperature -40degC ~ 125degC (TJ)
Voltage - Input (Max) 5.5V
Voltage Dropout (Max) 0.38V @ 300mA
Current - Supply (Max) 370 uA
Supplier Device Package SOT-23-5
Current - Quiescent (Iq) 55 uA
Voltage - Output (Min/Fixed) 3.3V

Getting Started

For evaluation, ensure the input and output capacitors are placed as close to the IC pins as possible to maintain stability. The EN (Enable) pin can be tied directly to VIN if the regulator should always remain active, or controlled by a GPIO to reduce system power consumption to 1 microamp in shutdown mode.