LTC1693
典型应用
负到正同步升压转换器
V
OUT
3.3V
6A
L2**
1H
V
S
+
C3
330F
6.3V
×
2
+
C2
330F
6.3V
×
5
+
C1
330F
6.3V
×
5
V
IN
–5V
R6
10
2
3
SENSE
–
PWR V
IN
PINV
BINH
V
IN
C
T
I
TH
7
12
+
C6
10F
16V
4
5
6
C5
0.1F
C7
390pF
C9
0.015F
C8
1500pF
SGND PGND V
FB
15
10
C10
220pF
R9
13k
R12
4.75k
R13
1.30k
1693 TA03
R7
1k
12
U
9
D2
MBRO530
D1
MBRS130
Q2
Si4420
×
2
6
5
U2B
LTC1693-2 4
3
R5
2.2
R1
0.015
1W
R2
0.015
1W
R3
100
L1*
4.8H
C12
4700pF
C13
0.1F
+
C14
10F
16V
D4
MBRO530
R19
1k
C17
100pF
C11
4700pF
Q1
Si4420
×
2
D3
MBRO530
8
7
U2A
LTC1693-2 2
1
C15
0.1F
D5
MBRO530
Q6
2N3904
R16
3.6k
R4
2.2
+
C16
10F
16V
R14
51
R15
1.2k
C4
1000pF
8
SENSE
–
T Drv的
BDRV
1
16
13
11
14
R8
30.1k
R10
100k
R11
100k
Q4
2N3906
Q3
2N7002
*松下ETQPAF4R8HA
** COILCRAFT DO3316P -102
Q5
2N3906
R17
6.81k
3.3V
R18
6.81k
V
S
U1
LTC1266
LBI
SHDN
LBO
