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MCP1256 数据表(PDF) 2 Page - Microchip Technology

部件名 MCP1256
功能描述  Regulated 3.3V, Low-Ripple Charge Pump with Low- Operating Current SLEEP Mode or BYPASS Mode
PDF  24 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

MCP1256 数据表(HTML) 2 Page - Microchip Technology

  MCP1256 Datasheet HTML 1Page - Microchip Technology MCP1256 Datasheet HTML 2Page - Microchip Technology MCP1256 Datasheet HTML 3Page - Microchip Technology MCP1256 Datasheet HTML 4Page - Microchip Technology MCP1256 Datasheet HTML 5Page - Microchip Technology MCP1256 Datasheet HTML 6Page - Microchip Technology MCP1256 Datasheet HTML 7Page - Microchip Technology MCP1256 Datasheet HTML 8Page - Microchip Technology MCP1256 Datasheet HTML 9Page - Microchip Technology Next Button
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MCP1256/7/8/9
DS21989A-page 2
© 2006 Microchip Technology Inc.
Package Pinouts
Functional Block Diagram
TABLE 1:
SWITCH LOGIC
PGOOD
1
2
3
4
MCP1258
56
7
8
9
10
BYPASS
LBO
1
2
3
4
56
7
8
9
10
BYPASS
MCP1259
C1-
C2-
PGOOD
GND
SHDN
1
2
3
4
MCP1256
C1+
VOUT
C2+
5
6
7
8
9
10
VIN
SLEEP
LBO
1
2
3
4
56
7
8
9
10
SLEEP
MCP1257
C2-
C1+
VOUT
C2-
C1+
VOUT
C2-
C1+
VOUT
C1-
GND
SHDN
C2+
VIN
C1-
GND
SHDN
C2+
VIN
C1-
GND
SHDN
C2+
VIN
S1
S2
S3
S4
S5
S7
S6
+
-
1.5x, 2x Mode
Comparator
840 k
Ω
720k
Ω
D Q
S5,S7
S6
S4
S1,S3,CE
Gate Drives
VIN
C2-C2+C1-C1+
VOUT
GND
480 k
Ω
840 k
Ω
+
-
Feedback
Amplifier
VOUT
CE
Bandgap
Ref.
650 kHz
Osc.
Mode
Phase
Oscillator
Q
S1
S2(CE)
S3
S4
S5
S6
S7
1.5x
Charging
H
L
H
H
H
L
H
L
H
1.5x
Transfer
L
L
L
L
L
H
L
H
L
2x
Charging
H
H
H
H
H
L
L
H
L
2x
Transfer
L
H
L
L
L
H
L
H
L
BYPASS
—
—
—
H
L
H
H
H
L
L
Legend: L is Logic Low, H is Logic High



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