The Micrel MIC2207 is a high efficiency PWM buck (step-down) regulator that provides up to 3A of output current. The MIC2207 operates at 2MHz and has proprietary internal compensation that allows a closed loop bandwidth of over 200KHz. The low on-resistance internal p-channel MOSFET of the MIC2207 allows efficiencies over 94%, reduces external components count and eliminates the need for an expensive current sense resistor. The MIC2207 operates from 2.7V to 5.5V input and the output can be adjusted down to 1V. The devices can operate with a maximum duty cycle of 100% for use in low-dropout conditions. The MIC2207 is available in the exposed pad 3mm x 3mm MLF-12L package with a junction operating range from –40°C to +125°C.
The Micrel MIC2207 is a high efficiency PWM step-down (buck) regulator designed for applications requiring up to 3A of output current. It operates from a supply voltage range of 2.7V to 5.5V and features proprietary internal compensation allowing a closed loop bandwidth over 200KHz. The device utilizes a low on-resistance internal p-channel MOSFET, enabling efficiencies exceeding 94% while reducing the need for external current sense resistors.
The MIC2207 is available in an exposed pad 3mm x 3mm MLF-12L package with a junction operating temperature range from -40°C to +125°C. Key features include ultra-fast transient response, stable operation with a 1uH inductor and 4.7uF output capacitor, micropower shutdown mode, thermal shutdown protection, and current limit protection.
| Operating Frequency | 2MHz |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V |
| Output Voltage Adjustment | Down to 1V |
| Efficiency | Over 94% |
Yes, the adjustable output voltage option goes down to 1V.
The MIC2207 operates at a fixed frequency of 2MHz.