ltc3728legn-1-tr Linear Technology Corporation, ltc3728legn-1-tr Datasheet - Page 30

• Manufacturer Part Number: ltc3728legn-1-tr
• Description: Dual, 550khz, 2-phase Synchronous Regulator
• Manufacturer: Linear Technology Corporation

TYPICAL APPLICATIONS
LTC3728L-1
30
V
V
IN
OUT
180pF
180pF
100pF
100pF
: 7V TO 28V
0.1μF
8.06k
4.75k
20k
10k
20k
1%
1%
: 5V, 4A/3.3V, 5A
0.01μF
0.1μF
1500pF
1000pF
63.4k
105k
1%
1%
1000pF
Figure 13. LTC3728L-1 5V/4A, 3.3V/5A Regulator with External Frequency Synchronization
1000pF
1000pF
SWITCHING FREQUENCY = 250kHz TO 550kHz
M1, M2: FDS6982S OR VISHAY Si4810DY
3.3V
f
SYNC
RUN/SS1
SENSE1
SENSE1
V
PLLFLTR
PLLIN
FCB
I
SGND
3.3V
I
V
SENSE2
SENSE2
TH1
TH2
OSENSE1
OSENSE2
OUT
LTC3728L-1
+
–
–
+
RUN/SS2
BOOST1
BOOST2
EXTV
PGOOD
INTV
PGND
SW1
SW2
TG1
BG1
BG2
TG2
V
CC
CC
IN
L1, L2: SUMIDA CDEP105-4R3MC-88
OUTPUT CAPACITORS: PANASONIC SP SERIES
1μF
CMDSH-3TR
0.1μF
V
(<7V)
PGOOD
PULL-UP
CMDSH-3TR
4.7μF, 10V
0.1μF
PIN 4
PIN 4
0.1μF
10Ω
M1
M2
Q1
Q3
1μF 50V
1μF 50V
4.3μH
4.3μH
22μF
50V
L1
L2
Q2
Q4
150μF, 6.3V
0.008Ω
0.008Ω
180μF, 4V
3728L1 F13
V
5V/4A
GND
V
7V TO
28V
V
3.3V/5A
OUT1
IN
OUT2
3728l1fc