LT1934 LINER [Linear Technology], LT1934 Datasheet - Page 17

• Manufacturer Part Number: LT1934
• Description: Micropower Step-Down Switching Regulators in ThinSOT
• Manufacturer: LINER [Linear Technology]

TYPICAL APPLICATIO S
7V TO 28V
V
IN
1 F
C2
D3
C1: SANYO 6TPB47M
C2: TAIYO YUDEN GMK316BJ105ML
D1, D3: ON SEMICONDUCTOR MBR0540
D2: CENTRAL CMDSH-3
L1: SUMIDA CR43-470
U
+
C5
10 F
V
SHDN
IN
LT1934
Standalone 350mA Li-Ion Battery Charger
BOOST
500
400
300
200
100
GND
0
2.5
V
SW
FB
IN
= 8V
3
BATTERY VOLTAGE (V)
V
V
IN
IN
0.1 F
D1
47 H
= 24V
= 12V
L1
332k
1M
[phone]
[phone]
[phone]
[phone]
[phone]
3.5
D2
+
C1
47 F
4
1k
1934 TA07b
1k
4.5
C
TIMER
0.1 F
CHARGE STATUS
AC PRESENT
CHRG
ACPR
TIMER
LTC4052
V
IN
SENSE
GATE
GND
BAT
LT1934/LT1934-1
10k
1934 TA07a
0.047 F
0.022 F
350mA
1-CELL 4.2V
Li-Ion
BATTERY
17
1934f