ADP1882/ADP1883 is a synchronous current-mode PWM buck controller with constant on-time characteristics. This product supports an input voltage range of 2.75V to 20V, with a minimum output voltage of 0.8V and a 0.8V reference voltage with ±1.0% accuracy. It supports all N-channel MOSFET power stages and offers options of 300kHz, 600kHz, and 1.0MHz. Additionally, it features power saving mode, thermal overload protection, short-circuit protection, precision enable input, and other characteristics.
The ADP1882 and ADP1883 are synchronous current‑mode buck controllers that operate from a 2.75 V to 20 V input and provide output voltages as low as 0.8 V. They support bias supply voltages of 2.75 V to 5.5 V, offer three switching‑frequency options (300 kHz, 600 kHz, 1.0 MHz) and are available in a 10‑lead MSOP package.
The datasheet includes detailed specifications, pin descriptions, typical performance curves, design guidelines, and layout recommendations. It also covers the ADP1883’s power‑saving mode (PSM) for light‑load efficiency and provides thermal and absolute‑maximum ratings for reliable design.
| Bias Supply Voltage Range (VDD) | 2.75 V to 5.5 V |
|---|---|
| Minimum Output Voltage | 0.8 V |
| Switching Frequency Options | 300 kHz, 600 kHz, 1.0 MHz |
| Package | 10‑lead MSOP |
It can regulate output voltages as low as 0.8 V.
Yes, the ADP1883 includes a power‑saving mode (PSM) that uses pulse skipping for light loads.