LTM4603-1_15 Datasheet, PDF (22/26 Pages) Linear Technology – 20V, 6A DC/DC Module Regulator with PLL, Output Tracking and Margining

LTM4603/LTM4603-1
APPLICATIONS INFORMATION
V_IN
4.5V TO 20V
C_IN
BULK
+
OPT.
TABLE 2
CLOCK SYNC
V_OUT
C5
0.01µF
R2
R4
100k 100k
V_IN PLLIN TRACK/SS
REVIEW TEMPERATURE
DERATING CURVE
PGOOD
PGOOD
ON/OFF
MPGM
RUN
COMP
INTV_CC
LTM4603
V_OUT
V_FB
MARG0
MARG1
V_{OUT_LCL}
C3 100pF
MARGIN
CONTROL
C_OUT1 +
22µF
6.3V
R1
C_IN
10µF
392k
25V
×2 CER
DRV_CC
SGND PGND
DIFFV_OUT
V_OSNS+
V_OSNS–
f_SET
R_SET REFER TO
40.2k TABLE 2
5% MARGIN
4603 F18
V_OUT
1.5V
6A
C_OUT2
470µF
6.3V
Figure 18. Typical 4.5V to _20VIN, 1.5V at 6A Design
4.5V TO 16V
C10
10µF
25V
C12
0.1µF
LTC6908-1
1 _{V+ OUT1} 4
R11
118k
2 _{GND OUT2} 5
3 _{SET MOD} 6
2-PHASE
OSCILLATOR
4.5V TO 16V
+ C11*
100µF
25V
CLOCK SYNC 0° PHASE
1.2V
R9
60.4k
2.5V
R10
60.4k
R1 R2
100k 100k
V_IN
C1
PGOOD
10µF
PLLIN TRACK/SS
V_OUT
C6 100pF
1.2V AT 6A
25V
MPGM
RUN
COMP
INTV_CC
LTM4603
V_FB
MARG0
MARG1
V_{OUT_LCL}
MARGIN
CONTROL
C4
22µF
6.3V
C5 +
DRV_CC
DIFFV_OUT
V_OSNS+
470µF
6.3V
V_OSNS–
R5
392k
SGND PGND ^fSET
R7
60.4k
CLOCK SYNC 180° PHASE
2.5V
C3
0.01µF
R3 R4
100k 100k
V_IN
C2
PGOOD
10µF
25V
MPGM
PLLIN TRACK/SS
V_OUT
V_FB
C6 100pF
RUN
MARG0 MARGIN
COMP
INTV_CC
LTM4603 ^MARG1
V_{OUT_LCL}
CONTROL
2.5V AT 6A
C7
22µF
6.3V
C8 +
DRV_CC
DIFFV_OUT
V_OSNS+
470µF
6.3V
V_OSNS–
R6
392k
SGND PGND ^fSET
R8
19.1k
*C11 OPTIONAL TO REDUCE LC RINGING.
NOT NEEDED FOR LOW INDUCTANCE PLANE CONNECTIONS
4603 F19
Figure 19. 2-Phase, 2.5V and 1.2V at 6A with Coincident Tracking
4603fb
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