MIC4681 Micrel Semiconductor, MIC4681 Datasheet - Page 10

• Manufacturer Part Number: MIC4681
• Description: 2A-Peak SuperSwitcher SOP-8 Buck Regulator
• Manufacturer: Micrel Semiconductor

MIC4681
Block Diagrams
MIC4681
SHDN
MIC4681 [adj.]
Oscillator
200kHz
parator
Adjustable Regulator
Com-
Error
Amp
Regulator
Shutdown
Thermal
Internal
Reset
10
1.23V
Bandgap
Reference
Current
Driver
Limit
Switch
IN
3A
V
IN
SW
FB
R1 R2
V
V
REF
OUT
1.23V
V
REF
V
V
OUT
REF
R2
R1
1
1
R1
R2
V
C
OUT
OUT
February 2001
Micrel