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零件编号
产品描述 (功能)
MIC5158BN 查看數據表(PDF) - Micrel
零件编号
产品描述 (功能)
生产厂家
MIC5158BN
Super LDO™ Regulator Controller
Micrel
MIC5158BN Datasheet PDF : 13 Pages
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MIC5156/5157/5158
Block Diagram MIC5156
+12V Input
0.1µF
V
P
+5V Input
V
DD
Micrel, Inc.
12k
+5V Input
Switched
5V Load
Q2
FLAG
Internal
Bias
EN
Enable
Shutdown
R
S
3mΩ
1.235V
Bandgap
Reference
to all
internal blocks
I
LIMIT
Comparator
D (Drain)
35mV
[ I
LIMIT
]
V
O U T
Comparator
Error
Amp
75mV
* fixed version only
†
3.3V = 17k, 5V = 32k
16.6V
17k
†
10k
G (Gate)
Q1
SMP60N03-10L
S* (Source)
Regulated
+3.3V Output
GND
C
L
‡
adjustable version only
EA
‡
Block Diagram with External Components
Fixed 3.3V Power Supply with 5.0V Load Switch
Block Diagram MIC5157
0.1µF
C1
0.1µF
C2
C1+ C1– C2+ C2–
V
C P
C3
1µF
+5V Input
V
DD
Oscillator
Charge Pump
Tripler
FLAG
1.235V
Bandgap
Reference
V
O U T
Comparator
Error
Amp
75mV
V
C P
Clamp
Internal
Bias
EN
Enable
Shutdown
R
S
3mΩ
to all
niternal blocks
I
LIMIT
Comparator
35mV
D (Drain)
[ I
LIMIT
]
16.6V
58k
G (Gate)
Q1
IRFZ44
S (Source)*
Regulated
+3.3V Output
5V
C
L
15k
3.3V
17k
10k
GND
MIC5156/5157/5158
Block Diagram with External Components
Fixed 3.3V 10A Power Supply
6
August 2005
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