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TPS7A2033PDBVR

TITPS7A2033PDBVR

Texas Instruments
Linear Voltage Regulator IC Positive Fixed 1 Output 300mA SOT-23-5
Active51,469 in stock
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Overview

The TPS7A2033PDBVR is a high-performance, ultra-low-noise linear voltage regulator from Texas Instruments designed for sensitive analog circuitry. It provides a fixed 3.3V output and supports up to 300mA of load current while maintaining high power-supply rejection ratio (PSRR) across a wide frequency range. With its low quiescent current of 6.5 microamps and small SOT-23-5 footprint, it is optimized for battery-powered applications requiring clean power delivery.

Why Choose This Part

This regulator offers an exceptional balance of low noise (7 nV/rtHz) and high PSRR, effectively filtering out upstream switching noise. It simplifies PCB design by remaining stable with a minimum 1 microfarad ceramic output capacitor and includes integrated protection against over-temperature and under-voltage conditions.

Applications

Precision Analog Power
Providing ultra-low-noise 3.3V rails for high-resolution ADCs and sensitive sensors.
RF Front-End Supply
Powering Bluetooth Low Energy (BLE) or Wi-Fi modules where low ripple and high PSRR are critical for signal integrity.
Portable Consumer Electronics
Extending battery life in handheld devices through 0.07 microamp shutdown current and low quiescent operating current.

Key Specifications

PSRR 65dB ~ 40dB (100Hz ~ 1MHz)
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, Under Voltage Lockout (UVLO)
Number of Regulators 1
Output Configuration Positive
Operating Temperature -40degC ~ 125degC (TJ)
Voltage - Input (Max) 6V
Voltage Dropout (Max) 0.14V @ 300mA
Current - Supply (Max) 2 mA
Supplier Device Package SOT-23-5
Current - Quiescent (Iq) 15 uA
Voltage - Output (Min/Fixed) 3.3V

Getting Started

To implement this LDO, place a 1 microfarad ceramic capacitor as close as possible to both the VIN and VOUT pins to ensure stability and transient performance. Connect the Enable pin to a logic high signal or VIN to activate the regulator, noting the smart internal pulldown feature that ensures the device remains off if the pin is floating.

Also Consider

TLV75533PDBVR TITexas Instruments - An alternative 500mA LDO with lower cost for less noise-sensitive 3.3V applications.
LP5907MFX-3.3/NOPB TITexas Instruments - A specialized 250mA ultra-low-noise LDO designed specifically for high-frequency RF applications.

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Categories

Power Management > LDO Voltage Regulators