The ADP3020 datasheet from Analog Devices details a dual synchronous buck regulator controller for notebook power supplies, including specifications, pin…
The ADP3020 is a dual‑mode, step‑down power supply controller designed for notebook computers and similar battery‑powered applications. It features a wide input voltage range, high conversion efficiency, integrated current sense, low shutdown current, and extensive protection functions.
The document provides full electrical specifications, pin‑function descriptions, ordering information, and typical performance graphs. It also explains the theory of operation, dual‑mode PWM/Power‑Saving architecture, and recommended external component values.
| Input Voltage Range | 4.5 V to 25 V |
|---|---|
| Shutdown Current (SD = 0 V) | 7 µA (Typical) |
| Quiescent Current (No Loads, MODE = 5 V, PWM Mode) | 0.95 – 1.8 mA |
| Oscillator Frequency (SYNC = REF) | 300 kHz (Typical) |
| Adjustable Output Voltage Range | 1.25 V to VIN‑0.5 V |
The ADP3020 operates from 4.5 V up to 25 V input.
The shutdown current is typically 7 µA.
It provides two independently programmable outputs (5 V and 3.3 V) that can be fixed or adjustable.
The device includes programmable soft‑start, UVLO, output over‑/under‑voltage protection, and current‑sense based short‑circuit protection.