Datasheet

LTC3860
30
3860fc
TYPICAL APPLICATIONS
Dual-Phase Single Output with Discrete Drivers and MOSFETs
FB1 COMP1 VSNSOUT VSNSN VSNSP COMP2 FB2
V
DIFF1
V
OS1N
V
OS1P
V
CC
V
CC
I
LIM1
ISNS1P
ISNS1N ISNS2N
ISNS2P
I
LIM2
RUN2
TRACK/SS2
FREQ
CLKIN
CLKOUT
PHSMD
PGOOD2
PWM2
V
CC
TRACK/SS1
VINSNS
I
AVG
PGOOD1
PWM1
RUN1
LTC3860
220pF
1.33k
V
DIFF1
V
CC
V
CC
5V
20k 20k
1μF
PWMEN1,2 SGND
0.22μF 0.22μF
V
IN
7V TO 14V
470μF
100pF
0.22μF
SW1
SW1
0.3μH
12.7k
33pF
1.5nF
FREQ SET FOR 600kHz
45.3k
7V TO 14V IN AND 1.2V OUT AT 50A f
SW
= 600kHz, DCR SENSING
PWM2
SS1
CLKOUT
RUN2
0.1μF
TRACK/SS1
100k
49.9k
2.2Ω
1μF
4.7μF
V
CC
PWM1
RUN1
IN V
LOGIC
V
CC
BOOST
4 3 2 1
5 6 7 8
4 3 2 1
5 6 7 8
GND
BG
TS
TG
LTC4449
RJK0305DPB
V
IN
BG1
TG1
RJK0330DPB
RJK0305DPB RJK0330DPB
RJK0305DPB RJK0330DPB
RJK0305DPB RJK0330DPB
22μF s2
47μF s3
330μF s3
47Ω
V
OUT1
1.2V 50A
V
OS1P
V
OS1N
47Ω2.74k
2.74k
0.22μF
SW2
SW2
0.3μH
2.2Ω
1μF
4.7μF
V
CC
IN V
LOGIC
V
CC
BOOST
GND
BG
TS
TG
LTC4449
V
IN
BG2
TG2
22μF s2
47μF s3
330μF s3
3860 TA04
NOTE: PLEASE REFER TO THE PIN CONFIGURATION OF THIS DATA SHEET FOR THE LTC3860 PINOUT