LTM4618 Datasheet, PDF (20/24 Pages) Linear Technology – 6A DC/DC μModule Regulator with Tracking and Frequency Synchronization

LTM4618
TYPICAL APPLICATIONS
V_IN
6V TO 26.5V
V_IN
V_IN
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R2
R1 R2
´
¶µ
r 1.22V
R1
UVLO FUNCTION
R2
C_IN
10μF
s2
C1
0.1μF
INTV_CC MODE/PLLIN EXTV_CC
V_IN
FREQ
COMP
TK/SS
LTM4618
V_OUT
V_FB
RUN
SGND
PGOOD
PGND
4618 F21
31.6k
10k
C2
47pF
28.7k
V_OUT
C_OUT ^2.5V/6A
100μF
s3
Figure 21. Typical 6V to 26.5V Input, 2.5V at 6A Design, 500kHz Operation
V_IN
6V TO 26.5V
C_IN1
10μF
C3 ^ON/OFF
0.47μF
R5
165k
C5
0.1μF
V⁺
OUT1
LTC6908-1
GND
OUT2
SET
MOD
2-PHASE OSCILLATOR
C_IN2
10μF
WITH CLOCK SYNC,
SOFT-START THE REGULATOR FOR APPROXIMATELY 100ms
C3  ^{100ms • 2 • 1.3μA}
0.8V
PGOOD
V_IN
CLOCK SYNC
0° PHASE
MODE/PLLIN
FREQ
COMP
TK/SS
LTM4618
V_OUT
V_FB
RUN
SGND
INTV_CC
PGND EXTV_CC
PGOOD
V_IN
CLOCK SYNC
180° PHASE
MODE/PLLIN
FREQ
COMP
TK/SS
LTM4618
V_OUT
V_FB
RUN
SGND
INTV_CC
PGND EXTV_CC
4618 F22
Figure 22. Two LTM4618 Parallel, 2.5V at 12A Design
C4
47pF
R4
14.3k
V_OUT
2.5V/12A
C_OUT
100μF
s4
4618f
20