MIC2182 Micrel Semiconductor, MIC2182 Datasheet - Page 8

• Manufacturer Part Number: MIC2182
• Description: High-Efficiency Synchronous Buck Controller Final Information
• Manufacturer: Micrel Semiconductor

MIC2182
Block Diagrams
MIC2182
C
R
COMP
EN/UVLO
COMP
COMP
SYNC
PWM
SS
6
1
2
5
3
MIC2182 [adj.]
RESET
Oscillator
PWM
Control
Logic
CORRECTIVE
RAMP
Figure 2a. Adjustable Output Voltage Version
PWM Mode
to Skip
Mode
Skip-Mode
Current
Limit
Low
Comp
Hysteresis
Comp
Current
Limit
100k
Error
Amp
–2%V
0.024V
0.07V
Reference
G
BG
m
= 0.2 10
8
V
V
-3
Current
Sense
Amp
A
DD
IN
V
= 2
VDD
11
VIN
10
VBST
14
HSD
16
VSW
15
LSD
13
PGND
12
CSH
8
VOUT
9
FB
7
SGND
4
V
IN
Q2
Q1
V
V
OUT
OUT(max)
C
D2
C
D1
IN
1.245V
BST
L1
6 V
.0
4.7 F
1
R2
R1
R
CS
R1
R2
V
C
June 2000
OUT
OUT
Micrel