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MCP1601 데이터시트(PDF) 2 Page - Microchip Technology

부품명 MCP1601
상세설명  500 mA Synchronous BUCK Regulator
PDF  22 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP1601 데이터시트(HTML) 2 Page - Microchip Technology

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MCP1601
DS21762A-page 2
 2003 Microchip Technology Inc.
Typical Application
Functional Block Diagram
VOUT
PGND
LX
SHDN
VIN
1
2
3
4
8
7
6
5
MCP1601
FB
SYNC/
AGND
Input
Voltage
2.7V-4.2V
CIN
10 µF
10 µH
COUT
10 µF
R1
250 k
Ω
(for 1.8V)
R2
200 k
Ω
Typical Application (2.7V to 4.2V)
IOUT = 0 mA to 400 mA
COUT Range
10 µF to 47 µF
L Range
10 µH to 22 µH
C1
47 pF
VOUT Range
1.2V to 3.3V
PWM
+
-
EA
CCOMP
FB
RCOMP
Feedforward Oscillator
K*VIN
Duty
Clamp
10% - 90%
PWM Latch
R
OUT
Inset
Timing
0.8V
ISENSEP
VREF
S
SQW
VIN
SHDN
Internal
Circuit
UVLO
Enable Out
AGND
AGND
AGND
PFM Comparator
Internal
Band Gap
Reference
Buffered 0.8V Output
VREF
SYNC/PWM
VREF
ISENSEP
ISENSEN
PFM Mode
Timing
LX
VOUT
PGND
PGND
Soft Start
ISENSEN
Duty
Clamp
800 k
Ω 12 pF
10 pF
3M
Ω
-
-
+
VREF
-
-
+
-
+
Enable
Cycle
Cycle



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