The MIC5203 is an 80mA linear voltage regulator with very low dropout voltage (typically 20mV at light loads and 300mV at 80mA) and very low ground current (225µA at 20mA output), offering better than 3% initial accuracy with a logic-compatible enable input. The µCap™ regulator design is optimized to work with low- value, low-cost ceramic capacitors. The outputs typically require only 0.47µF of output capacitance for stability. Designed especially for hand-held, battery-powered devices, the MIC5203 can be controlled by a CMOS or TTL compatible logic signal. When disabled, power consumption drops nearly to zero. If on-off control is not required, the enable pin may be tied to the input for 3-terminal operation. The ground current of the MIC5203 increases only slightly in dropout, further prolonging battery life. Key MIC5203 features include current limiting, overtemperature shutdown, and protection against reversed battery. The MIC5203 is available in 2.8V, 3.0V, 3.3V, 3.6V, 3.8V, 4.0V, 4.5V, 4.75V, and 5.0V fixed voltages. Other voltages are available; contact Micrel for details.
The MIC5203 is an 80mA linear voltage regulator designed with very low dropout voltage (typically 20mV at light loads) and low ground current. It utilizes a zCap design optimized to work with low-value ceramic capacitors, requiring only 0.47uF of output capacitance for stability.
The device is available in fixed output voltages ranging from 2.8V to 5.0V and comes in SOT-143 (M4) and SOT-23-5 (M5) surface-mount packages. Key features include current limiting, overtemperature shutdown, reverse battery protection, and a logic-compatible enable input that allows the device to consume nearly zero power when disabled.
| Output Current | 80mA |
|---|---|
| Dropout Voltage (I=20mA) | 350 mV max |
It is available in SOT-143 (M4) and SOT-23-5 (M5) surface-mount packages.
The MIC5203 provides a guaranteed 80mA output.