Datasheet LTM4601, LTM4601-1 (Analog Devices) - 23

LTM4601/LTM4601-1
applicaTions inForMaTion
CLOCK SYNC V C5 OUT 0.01µF VIN 4.5V TO 20V R2 R4 REVIEW TEMPERATURE 100k 100k VIN PLLIN TRACK/SS DERATING CURVE VOUT PGOOD VOUT 1.5V C3 100pF 12A PGOOD MPGM V + FB COUT1 COUT2 RUN MARG0 100µF 470µF MARGIN ON/OFF 6.3V 6.3V COMP MARG1 CONTROL LTM4601 INTVCC VOUT_LCL DRVCC DIFFVOUT CIN + R1 V + OSNS BULK 392k V – OSNS REFER TO OPT CIN 10µF SGND PGND f TABLE 2 FOR SET RSET 25V DIFFERENT 40.2k ×3 CER OUTPUT VOLTAGE 4601 F18 5% MARGIN
Figure 18. Typical 4.5V to 20V, 1.5V at 12A Design
60.4k + R V SET OUT N V CLOCK SYNC OUT = 0.6V RSET 0° PHASE TRACK/SS CONTROL V N = NUMBER OF PHASES IN 4.5V TO 20V R2 R4 VIN PLLIN TRACK/SS 100k 100k VOUT PGOOD VOUT 1.5V C6 220pF 24A MPGM VFB C3 RUN MARG0 22µF 6.3V COMP MARG1 LTM4601 C4 + INTVCC VOUT_LCL 470µF + C5* DRVCC DIFFVOUT 6.3V C1 100µF 0.1µF V + 25V OSNS LTC6908-1 V – REFER TO 1 6 C2 OSNS 118k V+ OUT1 R1 TABLE 2 10µF SGND PGND fSET 1% 392k RSET 2 5 25V 100pF GND OUT2 20k ×2 3 SET 4 MOD 5% MARGIN 2-PHASE MARGIN CONTROL OSCILLATOR CLOCK SYNC 180° PHASE 4.5V TO 20V TRACK/SS CONTROL C7 0.033µF VIN PLLIN TRACK/SS PGOOD PGOOD VOUT C3 + C4 MPGM VFB 22µF 470µF C8 RUN MARG0 6.3V 6.3V 10µF COMP MARG1 25V LTM4601-1 REFER TO ×2 INTVCC VOUT_LCL TABLE 2 DRVCC NC3 NC2 392k NC1 SGND PGND fSET 4601 F19 *C5 OPTIONAL TO REDUCE ANY LC RINGING. NOT NEEDED FOR LOW INDUCTANCE PLANE CONNECTION
Figure 19. 2-Phase Parallel, 1.5V at 24A Design
4601fe For more information www.linear.com/LTM4601 23 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Revision History Package Photo Related Parts