MAX38911

RECOMMENDED FOR NEW DESIGNS

11µVRMS Low-Noise, 500mA LDO Linear Regulators with Low-Power Mode Industry’s First 500mA LDO with Low-Power Mode Applied to Always-on Devices

Analog Devices MAX38911 Product Info

10 February 2026 7

Features

Deliver Wide, Flexible Operating Range

1.7V to 5.5V Input Supply Range
0.8V to 5.0V Output Voltage Range
500mA Maximum Output Current
24.3mV Dropout at 500mA Load and 5.0V Input Voltage
19.2µA No-Load Supply Current in Low-Power Mode
332µA Supply Current in Normal Mode
<1µA Shutdown Supply Current

Reduce Noise and Improve Accuracy

11µV_RMS Output Noise, 10Hz to 100kHz
70dB PSRR at 10kHz, 250mA Load Current, and 300mV Input and Output Voltage Separation
±1% DC Accuracy overload, Line, and Temperature Variations

Enable Ease-of-Use and Robust Protection

Active Discharge of 800Ω at OUT
Stable with 2µF (Minimum Effective) Output Capacitance
Programmable Soft-Start Rate
Overcurrent and Overtemperature Protection
Reverse-Current Protection
Power-OK Output

Reduce Size and Improve Reliability

1.42mm × 0.83mm, 3 × 2, 6-Bump, 0.4mm Pitch WLP
2mm × 2mm, 8-Pin TDFN Package
-40°C to +125°C Operating Temperature

Part details & applications

The MAX38911/MAX38912 are low-noise, high-PSRR PMOS linear regulators that deliver up to a 500mA load current with only 11µV_RMS of output noise from 10Hz to 100kHz.

The regulators are fully protected from damage by internal circuitry that provides programmable inrush current limiting, output overcurrent limiting, reverse current limiting, and thermal overload protection. MAX38911/MAX38912 has 800Ω active discharge feature to quickly discharge output capacitors.

The MAX38911 is available in WLP and TDFN packages and are default factory preprogrammed to an output voltage of 1.8V. Custom fixed-output voltage levels in the range of 0.8V to 5.0V in 50mV steps are also available, see Ordering Information.

MAX38912 provides enhanced flexibility with adjustable output voltage in the range of 0.8V to 5.0V by using two external feedback resistors.

The MAX38911ANT is packaged in a 1.42mm × 0.83mm, 3 × 2, 6-bump, 0.4mm pitch WLP, while the MAX38911ATA and MAX38912ATA are packaged in an 8-pin, 2mm × 2mm TDFN.

Applications

Digital Camera and Audio Devices
High-Performance Sensors for Portable Applications
Imaging and High-Frequency Sensors
IoT Sensors
Mobile Phones
Portable and Battery-Powered Equipment

Subscribe to Welllinkchips !

Your Name

* Email