Datasheet

34
LTC1702
1702fa
TYPICAL APPLICATIONS
U
Single Output, 2-Phase, Minimum Capacitors 5V to 2.5V/40A Converter
QT1A
C
IN1
10µF ×2
D1 D2
1µF
QT1B QT2A QT2B
0.004Ω 0.5W
0.004Ω 0.5W
V
IN
5V ±10%
0.004Ω 0.5W
0.004Ω 0.5W
C
IN1
, C
OUT
, C
VCC
: MURATA GRM235Y5V106Z
C
IN2
: AVX TPSD107M010R0080
D1, D2, D3: MOTOROLA MBR0530T1 ALL MOSFETS: FAIRCHILD FDS6670A L1, L2: SUMIDA CEP125-0R47
C
IN2
100µF
+
V
CC
PV
CC
LTC1702
10Ω
10k 10k
10Ω
D3
SGND PGND
FB1 COMP1 FB2 COMP2 PGOOD1 PGOOD2 RUN/SS1 RUN/SS2 FCB FAULT
TG1 TG2
BOOST1
SW1
BOOST2
SW2
I
MAX1
I
MAX2
BG1 BG2
C
VCC
10µF
0.01µF
0.01µF
4.7k
10k
10k
10k
1%
100k
4.75k 0.1%
0.1µF 0.1µF
0.1µF
1µF
0.1µF
V
IN
QB1A QB1B QB2A QB2B
L2 0.47µH L1 0.47µH
–
+
LT1006
33k 33k
PGOOD
C
OUT
10µF CER ×4
V
OUT
2.5V 40A