ADPL42010A

RECOMMENDED FOR NEW DESIGNS

20V, 1A, Fast Transient Response LDO Regulator

Analog Devices ADPL42010A Product Info

10 February 2026 4

Features

Optimized for Fast Transient Response
Output Current: 1A
Dropout Voltage: 400mV
Noise: 70μV_RMS (10Hz to 100kHz)
1mA Quiescent Current
No Protection Diodes Needed
Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3.3V
Adjustable Output from 1.21V to 20V
<1μA Quiescent Current in Shutdown

Stable with 10μF Output Capacitor (see the Applications Information section)
Stable with Ceramic Capacitors (see the Applications Information section)
Reverse Battery Protection
No Reverse Current
Thermal Limiting
3-Lead SOT-223 and 8-Lead SO Packages

Part details & applications

The ADPL42010A is a low dropout regulator optimized for fast transient response. The device is capable of supplying 1A of output current with a dropout voltage of 400mV. Operating quiescent current is 1mA, dropping to <1μA in shutdown.

Output voltage range is from 1.21V to 20V. The ADPL42010A regulator is stable with output capacitors as low as 10μF. Internal protection circuitry includes reverse battery protection, current limiting, thermal limiting and reverse current protection. The ADPL42010A is available in fixed output voltages of 1.5V, 1.8V, 2.5V, 3.3V, and as an adjustable device with a 1.21V reference voltage. The ADPL42010A regulator is available in 3-lead SOT-223 and 8-lead SO packages.

APPLICATIONS

3.3V to 2.5V Logic Power Supplies
Post Regulator for Switching Supplies

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