The SP7652 is a synchronous step-down switching regulator optimized for high efficiency. The part is designed to be especially attractive for dual supply, 12V step down with 5V used to power the controller. This lower VCC voltage minimizes power dissipation in the part. The SP7652 is designed to provide a fully integrated buck regulator solution using a fixed 600kHz frequency, PWM voltage mode architecture. Protection features include UVLO, thermal shutdown and output short circuit protection. The SP7652 is available in the space saving DFN package.
The SP7652 is a fixed‑frequency, voltage‑mode, synchronous PWM buck regulator optimized for high efficiency. It supports a 2.5 V to 28 V input range, delivers up to 6 A (8 A with airflow) and includes built‑in low‑RDS(on) MOSFETs, UVLO, thermal shutdown and short‑circuit protection.
The datasheet provides detailed electrical specifications, design guidelines for inductors, input and output capacitors, and loop compensation methods. Application notes cover soft‑start programming, fault handling, and component selection for optimal performance. This manual is written in Chinese.
| Input Voltage Range | 3 V – 28 V |
|---|---|
| Output Current Capability | 6 A (8 A with airflow) |
| VIN Rating | 30 V |
| ILX Rating | 10 A |
| BST Rating | 35 V |
| SWN Rating | -1 V to 30 V |
| Operating Temperature Range | -40 °C to 85 °C |
| Power Dissipation | Internally limited |
The VCC UVLO threshold is internally set to 4.25 V.
By connecting a capacitor from the SS pin to GND, the soft‑start rate can be set.
The device includes UVLO, thermal shutdown, and short‑circuit protection.
The regulator operates at a fixed 600 kHz frequency.