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MIC5203 Datasheet(PDF) 1 Page - Microchip Technology |
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MIC5203 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 20 page  2021 Microchip Technology Inc. and its subsidiaries DS20006609A-page 1 MIC5203 Features • Tiny 4- and 5-Lead Surface-Mount Packages • Wide Selection of Output Voltages • Guaranteed 80 mA Output • Low Quiescent Current • Low Dropout Voltage • Low Temperature Coefficient • Current and Thermal Limiting • Reversed Input Polarity Protection • Zero Off-Mode Current • Logic-Controlled Shutdown • Stability with Low-ESR Ceramic Capacitors Applications • Cellular Telephones • Laptop, Notebook, and Palmtop Computers • Battery-Powered Equipment • Barcode Scanners • SMPS Post-Regulator and DC/DC Modules • High-Efficiency Linear Power Supplies General Description The MIC5203 is a µCap 80 mA linear voltage regulator with very low dropout voltage (typically 20 mV at light loads and 300 mV at 80 mA) and very low ground current (225 µA at 20 mA 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 0.47 µF 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. Package Types MIC5203 4-Lead SOT-143 (M4) GND OUT IN EN LAxx Part Identification 1 2 34 MIC5203 5-Lead SOT-23 (M5) IN OUT NC EN LKx x 1 3 45 2 GND µCap 80 mA LDO Regulator |
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