16
LT1317/LT1317B
LINEAR TECHNOLOGY CORPORATION 1998
13177bf LT/TP 1198 4K • PRINTED IN THE USA
TYPICAL APPLICATION
U
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear-tech.com
Digital Camera Power Supply
24V
SHUTDOWN
V
IN
SW
FB
LT1317
L
PRI
:15µH
L
A
L
B
L
C
7
8
5
6
3
4
2
1
D1
10k
604k
1M
10k
3300pF
1317 TA10
C1, C4: AVX TPSC226M016
C2: AVX TPSC106M006
C3: CERAMIC (i.e. AVX, MANY OTHERS)
C5: SANYO 35CV10GX
D1, D2: MBR0520LT1 (MOTOROLA) OR EQUIVALENT
D3: MMBD914LT1 (MOTOROLA) OR EQUIVALENT
T1: COILTRONICS CTX02-14272-X1
V
C
GND
3.3V
150mA
5V
20mA
18V
3mA
C1
22µF
10V
4 AA
CELLS
(3.2V TO
6.5V)
C3
1µF, 16V
+
SHDN
C2
100µF
6V
+
D2
C4
22µF
10V
+
D3
T1
C5
10µF
35V
+
PART NUMBER DESCRIPTION COMMENTS
LTC
®
1163 Triple High Side Driver for 2-Cell Inputs 1.8V Minimum Input, Drives N-Channel MOSFETs
LTC1174 Micropower Step-Down DC/DC Converter 94% Efficiency, 130µA I
Q
, 9V to 5V at 300mA
LT1302 High Output Current Micropower DC/DC Converter 5V/600mA from 2V, 2A Internal Switch, 200µA I
Q
LT1304 2-Cell Micropower DC/DC Converter Low-Battery Detector Active in Shutdown
LT1307 Single Cell Micropower 600kHz PWM DC/DC Converter 3.3V at 75mA from 1 Cell, MSOP Package
LTC1440/1/2 Ultralow Power Single/Dual Comparators with Reference 2.8µA I
Q
, Adjustable Hysteresis
LTC1516 2-Cell to 5V Regulated Charge Pump 12µA I
Q
, No Inductors, 5V at 50mA from 3V Input
LT1521 Micropower Low Dropout Linear Regulator 500mV Dropout, 300mA Current, 12µA I
Q
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