IR3841WMPbF is an easy-to-use, fully integrated and highly efficient DC/DC synchronous Buck regulator. It features wide input voltage range, wide output voltage range, high efficiency, high bandwidth E/A, programmable switching frequency, programmable over current protection, PGood output, programmable soft-start, enable input, enhanced pre-bias start-up, Seq input, etc.
The IR3841WMPbF is a fully integrated, space‑efficient synchronous buck regulator designed for low‑output‑voltage applications. It offers greater than 96% maximum efficiency, a wide input voltage range of 1.5 V to 16 V, and a programmable switching frequency from 250 kHz up to 1.5 MHz. The device includes integrated bootstrap diode, programmable over‑current protection, soft‑start, and power‑good output features.
Typical specifications include a continuous 8 A load capability, 5 mm × 6 mm Power QFN package, operating temperature range –40 °C to 125 °C, and various protection functions such as thermal shutdown and hiccup current limit. The regulator is suited for distributed point‑of‑load power architectures, server, storage, and telecom applications.
| Maximum Efficiency | >96% |
|---|---|
| Input Voltage Range | 1.5 V – 16 V |
| Output Voltage Range | 0.7 V – 0.9 × Vin |
| Continuous Output Current | 8 A |
| Switching Frequency (programmable) | 250 kHz – 1.5 MHz |
| Package | 5 mm × 6 mm Power QFN, 0.9 mm height |
| Operating Temperature Range | -40 °C – 125 °C |
The regulator achieves greater than 96% maximum efficiency.
It operates with an input voltage from 1.5 V to 16 V.
The switching frequency can be set between 250 kHz and 1.5 MHz.
It is supplied in a 5 mm × 6 mm Power QFN package with a 0.9 mm height.