LTC1751 データシートの表示（PDF） - Linear Technology
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LTC1751 Datasheet PDF : 12 Pages
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LTC1751/LTC1751-3.3/LTC1751-5
TYPICAL APPLICATIO S
USB Port to Regulated 5V Power Supply with Soft-Start
1µF
1Ω
10µF
5
C–
3
VIN
6
C+
2
VOUT
7 LTC1751-5
SHDN
8
SS
1nF
1
PGOOD
GND
4
10µF
VOUT = 5V
100k
PGOOD
1751 TA04
2-Cell NiCd or NiMH to 3.3V with Low Standby Current
1µF
2-CELL
NiCd OR
NiMH
+
+
OFF ON
5
6
C–
3
VIN
C+
2
VOUT
10µF LTC1751-3.3
7
SHDN
8 SS
1
PGOOD
1nF
GND
4
10µF
3.3V
40mA
100k
PGOOD
1751 TA06
Boosted Constant Current Source
1µF
VIN
10µF
OFF ON
5
C–
3
VIN
6
C+
2
VOUT
LTC1751
7
SHDN
8 SS
1
FB
GND
4
10µF
IL
=
1.205V
RX
VOUT ≤ 2 VIN
LOAD
RX
1751 TA07
VIN = 5V
10µF
Low Power Battery Backup with Auto Switchover and No Reverse Current
Si4435DY
1µF
75k
IN4148
1.43M
3-CELL
NiCd
BATTERY
+
+
10µF
+
330pF
5
C–
3
VIN
6
C+
2
VOUT
LTC1751-5
8
SS
1
PGOOD
7
SHDN
GND
4
BAT54C
10µF
VOUT = 5V
IOUT ≤ 100mA
100k
HIGH = BACKUP MODE
475k
7
4
LTC1540
–
8
3
+
6
10k 5 HYST
21
1M
1751 TA05
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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