LT1617 Linear Technology, LT1617 Datasheet - Page 7

• Manufacturer Part Number: LT1617
• Description: Constant-Current/ Constant-Voltage 1.4MHz Step-Up DC/DC Converter
• Manufacturer: Linear Technology

TYPICAL APPLICATIO S
V
5V
1V TO 1.5V
IN
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 representation that the
interconnection of its circuits as described herein will not infringe on existing patent rights.
V
5V
IN
C1: TAIYO YUDEN LMK316BJ475
C2: TAIYO YUDEN JMK316BJ106
C3: TAIYO YUDEN EMK212BJ474
L1, L2: MURATA LQH3C100K24
D1: MOTOROLA MBR0520
V
U
IN
C1
4.7 F
C1: TAIYO YUDEN LMK316BJ475
C2: TAIYO YUDEN GMK316BJ105
C3: TAIYO YUDEN GMK212BJ224
L1: MURATA LQH3C100K24
D1: MOTOROLA MBR0540
C1: TAIYO YUDEN LMK316BJ475
C2: TAIYO YUDEN EMK316BJ475
C3: TAIYO YUDEN TMK316BJ224
L1, L2: MURATA LQH3C470K34
D1: CENTRAL SEMICONDUCTOR CMDSH-3
C1
4.7 F
4
C1
4.7 F
– 33V Inverting Charge Pump Converter
SHDN
V
4
IN
5
1-Cell to – 9V Inverting Converter
SHDN
LT1617
4
5V to – 5V Inverting Converter
V
10 H
GND
IN
L1
5
SHDN
V
2
LT1617
IN
10 H
5
GND
L1
LT1617-1
SW
NFB
2
47 H
GND
L1
1
0.47 F
2
SW
NFB
C3
3
1
SW
NFB
3
1
0.22 F
0.22 F
[phone]
[phone]
[phone]
[phone]
[phone]
C3
3
C3
D1
10 H
[phone]
[phone]
[phone]
[phone]
[phone]
L2
D1
D1
D2
47 H
[phone]
[phone]
[phone]
[phone]
[phone]
L2
73.2k
24.9k
619k
24.9k
150k
24.9k
100pF
1617/-1 TA03
C2
1 F
–33V
20mA
1617/-1 TA02
C2
10 F
LT1617/LT1617-1
C2
4.7 F
1617/-1 TA02
–5V
100mA
–9V
2.5mA
7