The ADP2126/ADP2127 is an ultra-low profile, 500 mA, 6 MHz, synchronous, step-down, DC-to-DC converter from Analog Devices.
The ADP2126/ADP2127 are high‑frequency step‑down DC‑DC converters optimized for portable applications where board area and battery life are critical. They operate from a 2.1 V to 5.5 V input range and provide up to 500 mA continuous output current with either a 1.20 V or 1.26 V fixed output.
Key features include synchronous rectification, spread‑spectrum frequency modulation, internal soft‑start, undervoltage lockout, output‑to‑ground short‑circuit protection, and thermal shutdown. The devices can be enabled by an external 6 MHz‑27 MHz clock or a logic‑high signal on the EXTCLK pin, and they support power‑saving modes for light‑load conditions.
| Input Voltage Range | 2.1 V to 5.5 V |
|---|---|
| Fixed Output Voltage Options | 1.20 V or 1.26 V |
The converters operate from 2.1 V up to 5.5 V input voltage.
The parts offer either a 1.20 V or a 1.26 V fixed output voltage.