14μV Low Noise 500mA LDO Linear Regulator

The MAX38902E is low-noise linear regulator that delivers up to 500mA of output current with only 14μVRMS of output noise from 10Hz to 100kHz. This regulator maintains ±1% output accuracy over a wide input voltage range, requiring only 100mV of input-to-output headroom at full load. The 600µA no-load supply current is independent of dropout voltage. The MAX38902E has an 800Ω active discharge feature to quickly discharge output capacitors.

The MAX38902E has a resistor adjustable output voltage in the range of 0.8V to 5.0V and includes an active-low POK output. The device features a programmable output soft-start rate, output over-current and thermal overload protection.

The MAX38902E is offered in an 8-pin TDFN package.

Applications

* Audio Systems

* Communication Circuitry

* High-Resolution Data Acquisition Systems

* Delivers Flexible Operating Range

* 1.7V to 5.5V Input Voltage Range

* 0.8V to 5.0V Output Voltage Range

* 500mA Maximum Output Current

* 100mV Maximum Dropout at 500mA Load (3.6VIN)

* < 0.1µA Shutdown Supply Current

* Reduces Noise and Improved Accuracy

* 14µVRMS Output Noise, 10Hz to 100kHz

* 600µA Operating Supply Current

* 45dB PSRR at 100kHz

* ±1% DC Accuracy Over Load, Line, and Temperature

* Enables Easy-of-Use and Robust Protection

* Minimum COUT 4µF

* Programmable Soft-Start Rate

* Overcurrent and Overtemperature Protection

* Output-to-Input Reversed Current Protection

* POK Output

* Active Discharge of 800Ω at OUT

* Reduces Size, Improves Reliability

* 2mm x 2mm 8-pin TDFN Package

* -40°C to 125°C Operating Temperature