MIC2171 Micrel Semiconductor, MIC2171 Datasheet - Page 2

• Manufacturer Part Number: MIC2171
• Description: 100kHz 2.5A Switching Regulator Preliminary Information
• Manufacturer: Micrel Semiconductor

MIC2171
Pin Configuration
Pin Description
Pin Number
Tab GND
1
2
3
4
5
5-lead TO-220 (BT)
Pin Name
Ordering Information
Part Number
MIC2171BT
MIC2171BU
COMP
GND
SW
FB
IN
5 IN
4 SW
3 GND
2 FB
1 COMP
Temperature Range
Pin Function
Frequency Compensation: Output of transconductance-type error amplifier.
Primary function is for loop stabilization. Can also be used for output voltage
soft-start and current limit tailoring.
Feedback: Inverting input of error amplifier. Connect to external resistive
divider to set power supply output voltage.
Ground: Connect directly to the input filter capacitor for proper operation
(see applications info).
Power Switch Collector: Collector of NPN switch. Connect to external
inductor or input voltage depending on circuit topology.
Supply Voltage: 3.0V to 40V
–40 C to +85 C
–40 C to +85 C
4-4
5-lead TO-220
5-lead TO-263
Package
Tab GND
5-lead TO-263 (BU)
5 IN
4 SW
3 GND
2 FB
1 COMP
Micrel
1997