MIC4575_09 MICREL [Micrel Semiconductor], MIC4575_09 Datasheet - Page 2

• Manufacturer Part Number: MIC4575_09
• Description: 200kHz Simple 1A Buck Regulator
• Manufacturer: MICREL [Micrel Semiconductor]

Ordering Information
Pin Configuration
Pin Description
Micrel, Inc.
July 2009
MIC4575-3.3BU
MIC4575-5.0BU
MIC4575-3.3BT
MIC4575-5.0BT
* RoHS compliant with ‘high-melting solder’ exemption.
Pin Number
MIC4575BU
MIC4575BT
Standard
3, TAB
1
2
4
5
Part Number
5-Pin TO-220 (T)
Pin Name
RoHS Compliant*
MIC4575-3.3WU
MIC4575-5.0WU
MIC4575-3.3WT
MIC4575-5.0WT
SHDN
GND
MIC4575WT
MIC4575WU
SW
FB
IN
Pin Function
Supply Voltage (Input): Unregulated +4V to +40V supply voltage.
Switch (Output): Emitter of NPN output switch. Connect to external storage
inductor and Shottky diode.
Ground.
Feedback (Input): Output voltage feedback to regulator. Connect to output of
supply for fixed versions. Connect to 1.23V tap of resistive divider for adjustable
versions.
Shutdown (Input): Logic low enables regulator. Logic high (> 2.4V) shuts down
regulator.
Voltage
3.3V
5.0V
3.3V
5.0V
Adj.
Adj.
2
Temperature Range
–40° to +85°C
–40° to +85°C
–40° to +85°C
–40° to +85°C
–40° to +85°C
–40° to +85°C
5-Pin TO-263 (U)
5-Pin TO-220
5-Pin TO-220
5-Pin TO-220
5-Pin TO-263
5-Pin TO-263
5-Pin TO-263
5
4
3
2
1
Package
SHDN
FB
GND
SW
VIN
M9999-072909
MIC4575