The MIC2168 is a high-efficiency, simple to use 1MHz PWM synchronous buck control IC housed in a small MSOP-10 package. The MIC2168 allows compact DC/DC solutions with a minimal external component count and cost. The MIC2168 operates from a 3V to 14.5V input, without the need of any additional bias voltage. The output voltage can be precisely regulated down to 0.8V. The adaptive all N-Channel MOSFET drive scheme allows efficiencies over 95% across a wide load range. The MIC2168 senses current across the high-side N-Chan- Nel MOSFET, eliminating the need for an expensive and lossy current-sense resistor. Current limit accuracy is main- tained by a positive temperature coefficient that tracks the increasing RDS(ON) of the external MOSFET. Further cost and space are saved by the internal in-rush-current limiting digital soft-start. The MIC2168 is available in a 10-pin MSOP package, with a wide junction operating range of –40°C to +125°C. All support documentation can be found on Micrel’s web site at www.micrel.com.
The MIC2168 is a high-efficiency, simple to use 1MHz PWM synchronous buck control IC housed in a small MSOP-10 package. It allows compact DC/DC solutions with a minimal external component count and cost. The device operates from a 3V to 14.5V input without the need for any additional bias voltage.
| Input Voltage Range | 3V to 14.5V |
|---|---|
| Output Voltage Range | 0.8V to Vin |
| Operating Frequency | 1MHz |
| Efficiency | Up to 95% |
| Package Type | MSOP-10 |
| Junction Temperature Range | -40°C to +125°C |
| Oscillator Frequency | 900 kHz to 1100 kHz |
The device operates from a 3V to 14.5V input.
No, it senses current across the high-side N-Channel MOSFET.
The output voltage can be precisely regulated down to 0.8V.