The SP6134 is a dual input synchronous buck controller that achieves a step-down voltage from 3V to 15V. It features a small 10-pin MSOP package, output capability of 2A to 15A, highly integrated design with minimal components. The controller includes UVLO detection for both VCC and VIN, short circuit protection with auto-restart, on-board NFET drivers, programmable soft start, fast transient response, and high efficiency greater than 94% possible.
The Sipex SP6134 is a fixed‑frequency, voltage‑mode synchronous buck controller designed for dual‑supply operation (3 V‑15 V input) and high‑efficiency step‑down conversion. It integrates UVLO, thermal shutdown, short‑circuit protection and programmable soft‑start in a compact 10‑pin MSOP package.
The device drives external NFETs up to 30 A, operates at a typical 600 kHz switching frequency, and offers output currents from 2 A to 15 A. Detailed electrical specifications, pin functions, and application guidelines for inductor selection are provided, along with ordering information for lead‑free and tape‑and‑reel options.
| Input voltage range | 3 V to 15 V |
|---|---|
| Output current capability | 2 A to 15 A |
| Switching frequency | ≈600 kHz |
| Efficiency | >94 % |
| VCC UVLO start threshold | 4.00 V |
| VCC UVLO stop threshold | 3.80 V |
| Thermal shutdown temperature | 145 °C |
| Package | 10‑pin MSOP |
The controller operates from 3 V up to 15 V.
It can provide between 2 A and 15 A of output current.
The internal oscillator runs at about 600 kHz.