MAX25300B

RECOMMENDED FOR NEW DESIGNS

12µVRMS, Low-Noise, 500mA LDO Linear Regulator Low-Voltage 500mA, 12µVRMS Low-Noise LDO

Analog Devices MAX25300B Product Info

10 February 2026 6

Features

1.7V to 5.5V Input Voltage Range
0.6V to 5.3V Output Voltage Range
12μV_RMS Output Noise, 10Hz to 100kHz
365μA Operating Supply Current
70dB PSRR at 10kHz
500mA Maximum Output Current
±1% DC Accuracy over Load, Line, and Temperature
100mV (max) Dropout at 500mA Load (3.6V_IN)

< 0.1μA Shutdown Supply Current
Stable with 2μF (min) Output Capacitance
Programmable Soft-Start Rate
Overcurrent and Overtemperature Protection
Output-to-Input Reversed Current Protection
POK Output
2mm x 2mm, 8-Pin TDFN Package
AEC-Q100
-40°C to +125°C Operating Temperature

Part details & applications

The MAX25300A/MAX25300B are low-noise linear regulators that deliver up to 500mA of output current with only 12μV_RMS of output noise from 10Hz to 100kHz. These regulators maintain ±1% output accuracy over a wide input voltage range, requiring only 100mV of input-to-output headroom at full load. The 365μA no-load supply current is independent of dropout voltage.

The MAX25300A has nine pin-selectable output voltages: 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.1V, 3.3V, 4.0V, and 5V. The MAX25300B has a resistor-adjustable output voltage in the 0.6V to 5.3V range. The MAX25300B also includes an active-high POK output.

The MAX25300A/MAX25300B are offered in an 8-pin TDFN package.

APPLICATIONS

Automotive Electronics
Audio Systems
High-Resolution Data Acquisition Systems

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