the mic2202 is a high efficiency 2mhz pwm synchronous buck regulator from micrel. it features a 1µf stable pwm regulator, 2.3v to 5.5v input, and 0.5v/600ma output.
The MIC2202 is a high‑efficiency 2 MHz PWM synchronous buck regulator designed for operation with a 1 µF ceramic output capacitor and a small low‑DCR inductor. It operates from 2.3 V to 5.5 V input and can provide output voltages as low as 0.5 V while supplying over 600 mA. Internal MOSFETs, constant‑frequency control, and an internal compensation scheme enable ultra‑fast transient response and >95 % efficiency.
Typical applications include cellular phones, PDAs, WLAN power supplies, FPGA/ASIC supplies, and RF power‑amp modules. The device is offered in 10‑pin MSOP and 3 mm × 3 mm MLF‑10L packages and is rated for –40 °C to +125 °C junction temperature.
| Input voltage range | 2.3 V – 5.5 V |
|---|---|
| Output voltage range | 0.5 V – 5 V (adjustable) |
| Maximum output current | 600 mA |
| Switching frequency | 2 MHz (PWM) |
| Package options | 10‑pin MSOP, 3 mm × 3 mm MLF‑10L |
| Junction temperature range | –40 °C to +125 °C |
| Efficiency | >95 % |
| Sync frequency range | 1.6 MHz – 2.5 MHz |
A 1 µF ceramic capacitor is recommended on the output pin.
The device operates from 2.3 V to 5.5 V input.