NR421A Overview
Buck type Synchronous Switching Regulator IC NR421A DATA SHEET General Descriptions The NR421A is Synchronous Rectification buck regulator ICs integrates PowerMOSFETs. With the current mode control, low ESR capacitors such as ceramic capacitors can be used. It has achieved a high efficiency by the synchronous rectification system.
NR421A Key Features
- For excellent heat dissipation, HSOP8 package with the heat-slug is adopted
- Current mode PWM control
- Up to 94% efficiency
- Stable with low ESR ceramic output capacitors
- Built-in protection function
- By the internal Phase pensation, external ponent count reduction
- Adjustable Soft-Start with an external capacitor
- Output ON/OFF function (Enable)
- HSOP8 Thermally enhanced 8-Pin package
- Image: Not to scale
