LP5907MFX ultra-low-noise, high-PSRR low-dropout (LDO) voltage regulator

The LP5907MFX from Texas Instruments is an ultra-low-noise, high-PSRR low-dropout (LDO) voltage regulator designed for noise-sensitive applications such as RF modules, sensors, and precision analog circuits.
With its very low output noise and excellent power supply rejection, the LP5907 ensures clean and stable power delivery, making it ideal for IMUs, ADCs, DACs, and communication modules. Its compact package and low quiescent current make it well-suited for space-constrained and battery-powered designs.

Key Features
Output & Performance-
Fixed output voltage: (variant dependent, e.g., 1.8V / 2.8V / 3.3V)
Output current: up to 250 mA
Ultra-low output noise (~6.5 µVrms typical)

Efficiency-
Very low dropout voltage
Low quiescent current (~25 µA typical)
High efficiency for battery-powered devices

Noise & Stability-
High PSRR (excellent ripple rejection)
Stable with small ceramic capacitors
Designed for noise-sensitive applications

Protection Features-
Overcurrent protection
Thermal shutdow
Short-circuit protectionControl & Operation
Enable (EN) pin for power control
Fast transient response

Operating Conditions-
Input voltage range: 1.2V to 5.5V
Operating temperature: -40°C to +125°C

Package Information-
Package Type: SOT-23-5 / DSBGA (variant dependent)
Mounting Type: Surface Mount (SMD
Pins: 5

Package Contents-
1 × LP5907MFX Low-Noise LDO Regulator

Applications-
IMU sensors (BMI088, ICM42688)
RF modules (GPS, Bluetooth, WiFi)
ADC/DAC precision circuits
Audio and instrumentation system
IoT and portable electronics
Flight controllers (clean analog power rail)

Usage Note-
Use low ESR ceramic capacitors (e.g., 1µF input/output)
Place LDO close to sensitive components for best noise performance

Datasheet: –LP5907MFX