ADP1877 is a dual output synchronous buck PWM controller from Analog Devices. It supports a programmable frequency of 200kHz to 1.5MHz. The input voltage range is 2.75V to 14.5V. The output voltage range is 0.6V to 90%VIN. The maximum output current is greater than 25A per channel.
The ADP1877 is a Flex‑Mode dual‑channel step‑down switching controller that drives N‑channel synchronous MOSFETs. Its two PWM outputs are 180° phase‑shifted to reduce input ripple current and allow the use of any output capacitors. The device includes integrated boost diodes, soft‑start, over‑voltage, over‑current, thermal overload and UVLO protection.
The controller operates from 2.75 V to 14.5 V input, supports output voltages from 0.6 V up to 90 % of the input, and can deliver more than 25 A per channel. Frequency is programmable from 200 kHz to 1.5 MHz, and the part is offered in a 32‑lead 5 mm × 5 mm LFCSP package.
| Input voltage range | 2.75 V to 14.5 V |
|---|---|
| Output voltage range | 0.6 V to 90 % Vin |
| Maximum output current per channel | >25 A |
| Programmable switching frequency | 200 kHz to 1.5 MHz |
| Output voltage accuracy | ±0.85 % (‑40 °C to +85 °C) |
The controller operates from 2.75 V up to 14.5 V.
Each channel can supply more than 25 A of output current.
The frequency is programmable between 200 kHz and 1.5 MHz using an external resistor on the FREQ pin.
It includes over‑voltage, over‑current, thermal overload, and input undervoltage lockout (UVLO) protection.