LTC3703-5_15 Datasheet, PDF (30/32 Pages) Linear Technology – 60V Synchronous Switching Regulator Controller

LTC3703-5
TYPICAL APPLICATIO S
15V-60V Input Voltage to 12V/10A Step-Down Converter with Pulse Skip Mode Enabled
V_CC
5V TO 15V
C_C2
1000pF
R_C2
100Ω
C_C3
2200pF
R_C1
10k
R2
8.06k
1%
R1
113k
1%
1
16
R_SET ^{MODE/SYNC VIN}
25k ₂
15
FSET BOOST
C_C1
470pF
3
COMP
4
FB
14
TG
13
SW
R_MAX 15k ₅ LTC3703-5 ₁₂
I_MAX
V_CC
C_SS
0.1µF
6
INV
7
RUN/SS
11
DRV_CC
10
BG
8
GND
9
BGRTN
+ _22µF
25V
D_B
V_IN
15V TO 60V
MMDL770T1
C_B
0.1µF
+
M1
Si7850DP
C_IN
22µF
100V
×2
L1
8µH
R_F
10Ω
C_DRVCC
10µF
C_VCC
1µF
M2
Si7460DP
C_{OUT +}
220µF
25V
×2
D1
MBR1100
V_OUT
12V
10A
37035 TA01
Single Input Supply 5V/5A Output Step-Down Converter
R_C1
10k
C_C2
1000pF
R_C2
100Ω
C_C3
2200pF
R2
21.5k
1%
R1
113k
1%
R_SET 25k
C_C1
470pF
R_MAX 15k
C_SS
0.1µF
1
16
MODE/SYNC V_IN
2
FSET
15
BOOST
3
COMP
14
TG
4
FB
13
SW
5 ^LTC3703-5 12
I_MAX
V_CC
6
INV
11
DRV_CC
7
RUN/SS
10
BG
8
GND
9
BGRTN
100Ω
FZT600
10k *
+ _22µF
25V
5.1V
D_B1
MMDL770T1
V_IN
6V TO 60V
4.7Ω
R_F
10Ω
C_DRVCC
10µF
C_B
0.1µF
C_VCC
1µF
+ C_IN
22µF
M1
100V
Si7850DP
D_B2
MMDL770T1
L1 4.7µH
M2
Si7850DP
C_OUT +
220µF
25V
D1
MBR1100
CMDSH-3
V_OUT
5V
5A
*OPTIONAL ZENER PROVIDES UNDERVOLTAGE LOCKOUT ON INPUT SUPPLY, V_UVLO ≅ 5 + V_Z
3703 TA02
37035fa
30