ltc1473l Linear Technology Corporation, ltc1473l Datasheet - Page 12

• Manufacturer Part Number: ltc1473l
• Description: Dual Low Voltage Powerpath Switch Driver
• Manufacturer: Linear Technology Corporation

LTC1473L
TYPICAL APPLICATIO S
12
AND/OR
SHDN
SYNC
S/S
**
GND
*
L1A, L1B ARE TWO 33 H WINDINGS ON A
SINGLE INDUCTOR: COILTRONICS CTX33-3
TOKIN CERAMIC 1E22ZY5U-C203-F
C3
22 F
25V
GND
LT
0.1 F
®
V
1512
C5
IN
R5
1k
V
L1A*
C
V
I
SW
FB
FB
24
C4
0.22 F
R4
22 F
C2**
R3
1
L1B*
MBRS130LT3
U
R1
47.55k
R2
12.45k
D1
4 NiMH
C
2000pF
BAT1
TIMER
C1
22 F
25V
100mA
LTC1473L with Battery Charger
BAT54C
1 F
DCIN
3.3V
1 F
DRIVEN
LOGIC
1mH
1
2
3
4
5
6
7
8
IN1
IN2
DIODE
TIMER
V
V
SW
GND
GG
+
LTC1473L
SENSE
SENSE
SAB1
SAB2
GA1
GB1
GA2
GB2
+
–
16
15
14
13
12
11
10
9
Si9926DY
Si9926DY
1473 TA03
R
0.04
SENSE
+
C
OUT
3.3V OR
V
BAT1