This document describes the features of ADP2108, a high efficiency, low quiescent current step-down DC-to-DC converter. It has a peak efficiency of 95%, a fixed frequency operation of 3 MHz, a typical quiescent current of 18 μA, and a maximum load current of 600 mA. The converter is suitable for applications such as PDAs, palmtop computers, wireless handsets, digital audio, portable media players, digital cameras, and GPS navigation units.
The ADP2108 is a high‑efficiency, low‑quiescent‑current step‑down DC‑DC converter offered in 5‑ball WLCSP and 5‑lead TSOT packages. It operates from 2.3 V to 5.5 V input and delivers up to 600 mA load current with up to 95 % peak efficiency. The device uses a current‑mode architecture, internal synchronous rectifier, and includes features such as soft‑start, current‑limit, thermal shutdown, and power‑save mode.
The datasheet provides detailed specifications, absolute maximum ratings, pin configurations, typical performance graphs, and application circuit examples for portable electronics such as PDAs, wireless handsets, digital audio players, and cameras.
| Input Voltage Range | 2.3 V to 5.5 V |
|---|---|
| Peak Efficiency | 95 % |
| Maximum Load Current | 600 mA |
| Typical Quiescent Current | 18 pA |
| Output Voltage Accuracy (PWM mode) | ±2 % |
| Available Packages | 5‑ball WLCSP, 5‑lead TSOT |
The ADP2108 operates from 2.3 V to 5.5 V input.
It can deliver up to 600 mA of load current.
The device is offered in 5‑ball WLCSP and 5‑lead TSOT packages.
Typical quiescent current is 18 pA.