The LTC3730 is a high performance, low power, three-phase synchronous buck controller with 5-bit Intel Mobile VID input and up to 600kHz switching frequency.
The LTC3730 is a PolyPhase® synchronous step‑down switching regulator controller that drives three external N‑channel MOSFET stages with 120° phase separation. It operates at up to 600 kHz per phase, providing high efficiency and low output ripple for high‑current DC/DC supplies.
Typical applications include tablet computers, high‑performance notebook computers, and high‑output current DC/DC power supplies. The datasheet includes electrical characteristics, pin descriptions, package dimensions, and example circuits to aid designers.
| Programmable Output Voltage Range | 0.6 V to 1.75 V |
|---|---|
| Switching Frequency per Phase | 250 kHz to 600 kHz |
| Peak Output Current (≤1 ms) | 5 A |
| Package Type | 36‑Lead Plastic SSOP |
The device can be programmed to output voltages from 0.6 V up to 1.75 V.
Each phase can operate between 250 kHz and 600 kHz.
It is supplied in a 36‑lead plastic SSOP package.
The controller can handle peak output currents up to 5 A for pulses shorter than 1 ms.