IR3832W SupIRBuckTM is a highly efficient synchronous buck regulator from IR company, which can be applied to DDR memory applications. This product supports wide input voltage range (1.5V-16V), wide output voltage range (0.6V-0.9*Vin), and maximum continuous output current of 4A.
The IR3832WMPbF is a fully integrated, high‑efficiency DC/DC regulator designed for DDR memory applications. It offers a wide input voltage range (1.5 V‑16 V) and programmable output voltage, switching frequency (250 kHz‑1.5 MHz), and current limit, with built‑in protection features such as pre‑bias start‑up, hiccup current limit, and thermal shutdown.
The document includes detailed electrical specifications, pin descriptions, recommended operating conditions, typical performance curves, and mechanical data such as the 5 mm × 6 mm QFN package. Ordering information and stencil design guidelines are also provided for PCB assembly.
| Input Voltage Range | 1.5 V to 16 V |
|---|---|
| Output Voltage Range | 0.6 V to 0.9 × Vin |
| Continuous Load Capability | 4 A |
| Switching Frequency (programmable) | 250 kHz to 1.5 MHz |
| Package | 5 mm × 6 mm Power QFN, 0.9 mm height |
| Operating Temperature Range | -40 °C to 125 °C |
| Thermal Shutdown Threshold | 140 °C |
The device operates with an input voltage from 1.5 V up to 16 V.
The switching frequency is set by connecting an external resistor from the designated pin to ground; it can be programmed from 250 kHz to 1.5 MHz.
The regulator provides pre‑bias start‑up, hiccup current limit, and thermal shutdown protection.
It is supplied in a 5 mm × 6 mm Power QFN package with a height of 0.9 mm.