Microchip Technology MIC2171
The MIC2171 is a complete 100 kHz SMPS current-mode controller with an internal 65V 2.5A power switch. The MIC2171 is available in a 5-pin TO-220 or TO-263 package that allows –40°C to +85°C ambient temperature operation. Although primarily intended for voltage step-up applications, the floating switch architecture of the MIC2171 makes it practical for step-down, inverting, and Cuk configurations, as well as isolated topologies.| Part No. | MIC2171 |
|---|---|
| Datasheet | MIC2171 Download |
| Manufacturer |  Microchip Technology |
| Description | 2.5A Switching Regulator |
| Buy | Stock & Price |
FEATURES
● 2.5A, 65V Internal Switch Rating● 3V to 40V Input Voltage Range
● Current Mode Operation, 2.5A Peak
● Internal Cycle-by-Cycle Current Limit
● Twice the Frequency of the LM2577
● Low External Electronic Components Count
● Suitable for Most Switching Topologies
● 7 mA Quiescent Current (Operating)
● Fits LT1171/LM2577 TO-220 and TO-263 Sockets
APPLICATIONS
● Laptop/Palmtop Computers● Battery Operated Equipment
● Handheld Instruments
● Off-Line Converter up to 50W (Requires External Power Switch)
● Predriver for Higher Power Capability
GENERAL DESCRIPTION
Operating from 3V to 40V, the MIC2171 draws only 7 mA of quiescent current, making it attractive for battery-operated applications. Package Types 5-Pin TO-220 (T) Tab GND 5 IN 4 SW 3 GND 2 FB 1 COMP 5-Pin TO-263 (U) Tab GND 5 IN 4 SW 3 GND 2 FB 1 COMP 2022 Microchip Technology Inc. and its subsidiaries DS20006355A-page 1 MIC2171 Typical Application Circuits 5V to 12V Boost Converter +5V (4.75V min.) L1 15μH C1* 47μF IN SW...
