MIC3490-1.8YM5-TR Microchip

MIC3490 High Input Voltage, Low I Cap LDO Regulator Q Features General Description Wide Input Voltage Range: 2.3V to 36V The MIC3490 is a 100 mA, highly accurate, low-dropout regulator with high input voltage and Ultra-Low Ground Current: 18 A ultra-low ground current. This combination of high Low Dropout Voltage of 270 mV at 100 mA voltage and low ground current makes the MIC3490 High Output Accuracy of 2.0% Overtemperature ideal for multi-cell Li-Ion battery systems. Cap: Stable with Ceramic or Tantalum As a Cap LDO design, the MIC3490 is stable with Capacitors either ceramic or tantalum output capacitors. It only Excellent Line and Load Regulation Specifications requires a 2.2 F output capacitor for stability. Near Zero Shutdown Current: Typical 0.1 A Features of the MIC3490 include enable input, thermal Reverse Battery Protection shutdown, current limit, reverse battery protection and Reverse Leakage Protection reverse leakage protection. Thermal Shutdown and Current-Limit Protection Available in five output voltage options (1.8V, 2.5V, SOT23-5 Package 3.0V, 3.3V and 5.0V), the MIC3490 is offered in a 5-pin The MIC3490 is Pin-to-Pin Compatible with SOT23 package with a junction temperature range of LM3940 -40C to + 125C. Applications Typical Application Circuit Keep-Alive Supply in Notebook and Portable Ultra-Low Current Adjustable Regulator Computers Application USB Power Supply Logic Supply for High-Voltage Batteries MIC3490YM5 Automotive Electronics Battery-Powered Systems 1 5 V V IN NC OUT 3 to 4-Cell Li-Ion Battery Input Range 2 4 3 OFF ON EN C = 2.2 F OUT C = 1.0 F IN CERAMIC I = 18 A GND 2019 Microchip Technology Inc. DS20006137A-page 1MIC3490 Package Types MIC3490 5-Pin SOT23 (Top View) EN GND NC 3 2 1 L3XX 4 5 IN OUT Functional Block Diagrams OUT IN EN ENABLE R1 V REF R2 GND DS20006137A-page 2 2019 Microchip Technology Inc.