MIC4680 Micrel Semiconductor, MIC4680 Datasheet - Page 2

• Manufacturer Part Number: MIC4680
• Description: 1A 200kHz SuperSwitcher Buck Regulator Final Information
• Manufacturer: Micrel Semiconductor

MIC4680
Ordering Information
Pin Configuration
Pin Description
MIC4680
Pin Number
5–8
1
2
3
4
Part Number
MIC4680BM
MIC4680-3.3BM
MIC4680-5.0BM
Pin Name
SHDN
GND
VIN
SW
FB
SHDN
Adjustable
SW
Voltage
FB
IN
3.3V
5.0V
Pin Function
Shutdown (Input): Logic low enables regulator. Logic high (>1.6V) shuts
down regulator.
Supply Voltage (Input): Unregulated +4V to +34V supply voltage.
Switch (Output): Emitter of NPN output switch. Connect to external storage
inductor and Shottky diode.
Feedback (Input): Connect to output on fixed output voltage versions, or to
1.23V-tap of voltage-divider network for adjustable version.
Ground
1
2
3
4
SOP-8 (M)
Junction Temp. Range
2
–40 C to +125 C
–40 C to +125 C
–40 C to +125 C
8 GND
7
6
5
GND
GND
GND
8-lead SOP
8-lead SOP
8-lead SOP
Package
June 2000
Micrel