LT1930 Linear Technology, LT1930 Datasheet - Page 8

• Manufacturer Part Number: LT1930
• Description: Constant-Current/ Constant-Voltage 1.4MHz Step-Up DC/DC Converter
• Manufacturer: Linear Technology

LT1930/LT1930A
8
TYPICAL APPLICATIO S
BATTERY
BATTERY
4-CELL
4-CELL
C1: TAIYO-YUDEN X5R LMK212BJ225MG
C2: TAIYO-YUDEN X5R JMK316BJ106ML
C3: TAIYO-YUDEN X5R LMK212BJ105MG
4V TO 6.5V
4V TO 6.5V
C1: TAIYO-YUDEN X5R LMK212BJ225MG
C2: TAIYO-YUDEN X5R JMK316BJ106ML
C3: TAIYO-YUDEN X5R LMK212BJ105MG
D1: ON SEMICONDUCTOR MBR0520
L1: SUMIDA CLS62-100
4-Cell to 5V SEPIC Converter with Coupled Inductors
SHDN
SHDN
C1
2.2 F
C1
2.2 F
4-Cell to 5V SEPIC Converter
4
4
SHDN
SHDN
V
V
IN
IN
5
5
LT1930
LT1930
10 H
10 H
GND
GND
L1A
V
L1
5V
IN
D1: ON SEMICONDUCTOR MBR0520
L1, L2: MURATA LQH3C100K24
2
2
C1: TAIYO-YUDEN X5R LMK212BJ225MG
C2, C3: TAIYO-YUDEN X5R EMK316BJ225ML
C4, C5: TAIYO-YUDEN X5R TMK316BJ105ML
D1 TO D4: ON SEMICONDUCTOR MBR0520 [phone]
L1: SUMIDA CR43-3R3 [phone]
SW
SW
•
FB
FB
1
1
U
OFF ON
[phone]
C1
2.2 F
3
3
15V Dual Output Converter with Output Disconnect
1 F
1 F
C3
C3
243k
243k
82.5k
82.5k
4
SHDN
V
IN
5
•
LT1930
L2
10 H
L1B
10 H
3.3 H
GND
L1
D1
D1
2
SW
FB
1
1930 TA02a
1930/A TA03
C2
10 F
C2
10 F
3
V
5V
300mA
V
5V
300mA
OUT
OUT
C5
1 F
1 F
C4
D3 D4
V
5V
D2
IN
D1
80
75
70
65
60
55
50
45
40
C1: TAIYO-YUDEN X5R EMK316BJ475ML
C2: TAIYO-YUDEN X5R JMK212BJ475MG
D1: ON SEMICONDUCTOR MBR0530
L1: SUMIDA CR43-100
0
SHDN
C6
2.2 F
C1
4.7 F
R1
147k
R2
13.3k
100
1930/A TA05
5V to 24V Boost Converter
4
LOAD CURRENT (mA)
SHDN
C2
2.2 F
V
IN
15V
70mA
–15V
70mA
Efficiency
200
5
LT1930
10 H
GND
L1
2
300
V
SW
IN
FB
1
= 4V
V
IN
3
D1
400
= 6.5V
1930 TA02b
R1
665k
R2
36.5k
500
1930/A TA04
C2
2.2 F
V
24V
90mA
OUT