MIC4575 Micrel Semiconductor, MIC4575 Datasheet - Page 2

• Manufacturer Part Number: MIC4575
• Description: 200kHz Simple 1A Buck Voltage Regulator
• Manufacturer: Micrel Semiconductor

Ordering Information
Pin Configuration
Pin Description
April 1998•
MIC4575
Pin Number
3,
1
2
4
5
TAB
Part Number
MIC4575-3.3BT
MIC4575-5.0BT
MIC4575BT
MIC4575-3.3BU
MIC4575-5.0BU
MIC4575BU
Pin Name
SHDN
GND
SW
V
FB
IN
Adjustable
Adjustable
Voltage
3.3V
5.0V
3.3V
5.0V
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.
5-Lead TO-263 (U)
5-Lead TO-220 (T)
Temperature Range
4-107
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
5
4
3
2
1
SHDN
FB
GND
SW
V
IN
5
4
3
2
1
SHDN
FB
GND
SW
V
5-lead TO-220
5-lead TO-220
5-lead TO-220
5-lead TO-263
5-lead TO-263
5-lead TO-263
IN
Package
Micrel
4