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MIC2182 Datasheet(PDF) 8 Page - Micrel Semiconductor

Part # MIC2182
Description  High-Efficiency Synchronous Buck Controller Final Information
PDF  28 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2182 Datasheet(HTML) 8 Page - Micrel Semiconductor

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MIC2182
Micrel
MIC2182
8
June 2000
Block Diagrams
SGND
Gm = 0.2×10
-3
Low
Comp
Current
Limit
Skip-Mode
Current
Limit
PWM Mode
to Skip
Mode
Hysteresis
Comp
0.07V
–2%VBG
Error
Amp
Control
Logic
VIN
VDD
PWM
CORRECTIVE
RAMP
RESET
Reference
Oscillator
0.024V
EN/UVLO
6
11
14
10
16
15
13
12
8
9
7
4
1
2
5
3
SS
PWM
SYNC
COMP
100k
MIC2182 [adj.]
FB
R2
R1
VOUT
CSH
VDD
VBST
CIN
VIN
HSD
Q2
Q1
D1
D2
CBST
COUT
VIN
VOUT
L1
VSW
LSD
PGND
CCOMP
RCOMP
4.7
µF
AV = 2
V
1.245V
R1
R2
OUT =+


1
V6 V
OUT(max) =
.0
Current
Sense
Amp
RCS
Figure 2a. Adjustable Output Voltage Version



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