MIC2206 Datasheet, PDF (7/12 Pages) Micrel Semiconductor – 2MHz PWM Synchronous Buck Regulator with LOWQ Mode and Voltage Scaling

Micrel
MIC2206
Functional Diagram
VIN
AVIN
6
BIAS
P-Channel
Current Limit
HSD
SW
PWM
Control
Anti-Shoot
Through
LSD
N-Channel
Current Limit
EN
LOWQ
Enable and
Control Logic
Bias,
UVLO,
Thermal
Shutdown
LDO Block
LDO
Current
Limit
SGND
Soft
Start
EA
1.0V
EA
1.0V
FB
100pF
R1
R2
PGND
LDO
MIC2206 Block Diagram
V_OUT
C_OUT
April 2005
7
M9999-041905
www.micrel.com