AIC1631 Просмотр технического описания (PDF) - Analog Intergrations
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AIC1631 Datasheet PDF : 10 Pages
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AIC1631
APPLICATION EXAMPLES (CONTINUED)
+VIN
+VOUT
(+5V)
100Ω
R1
130
D2
LOAD
50µH
L1 C2 +
ILIM/SD
VIN
VOUT
1N4148
LBI
1M 1M 680K
110
R2 R3 R4
90
47µF
100µF
C1
1N5819
+ D1
SW
LBO
SGND
CGND
AIC1631-5
* CTL= GND in Burst Mode
CTL=VIN in Normal Mode
*CTL
15nF
Q1
C4
2N3904
Q2
+
2N3904
C3
1µF
70
50
30
10
0
VIN=1.8V
VIN=2.0V
VIN=2.5V
VIN=3V
10
20
30
40
Load Current (µA)
Fig. 6 Low Supply Current Burst Mode Step-Up Converter
+VOUT
LOAD
OSCON +
100µF
C3
+VIN
22Ω
27K
R1
+ 100µF
C2
+ 47µF
C1
R2
ILIM/SD VOUT
VIN
LBI
R1
SW
LBO
1N5819
D1
GND
FB
AIC1631A
R2
Fig.7 Adjustable Output Voltage Step-Up Converter
9
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