Datasheet LTM4634 (Analog Devices) - 9
| Manufacturer | Analog Devices |
| Description | Triple Output 5A/5A/4A Step-Down DC/DC μModule (Power Module) Regulator |
| Pages / Page | 32 / 9 — block DiagraM. Figure 1. Simplified LTM4634 Block Diagram |
| File Format / Size | PDF / 759 Kb |
| Document Language | English |
block DiagraM. Figure 1. Simplified LTM4634 Block Diagram
Model Line for this Datasheet
Text Version of Document
LTM4634
block DiagraM
INTERNAL BLOCK DIAGRAM MODE/PLLIN CNTL_PWR 1µF 2Ω 50V FREQ/PLLLPF VIN1 INTV 24V CC CIN1 1µF 4.7µF INTERNAL GND 50V 24V FILTER MTOP1 SW1 R1 V 150k 1.5µH IN(UVLO) = SGND VOUT1 VOUT1 RUN1 3.3V (R1 + 10k)1.3V 10k RRUN1 R + 5A MBOT1 0.1µF FBHI1 10k 60.4k COUT1 TK/SS1 GND SS COMP1 CAP1 VFB1 SGND VFB1 SGND INTERNAL LOCATED NEAR POWER STAGES RFB1 COMP 19.1k SGND SGND SGND PNP TEMP1 INTVCC R4 10k VIN2 PGOOD12 CIN3 + 1µF 4.7µF 100µF GND INTV 50V 50V CC MTOP2 SW2 4.7µF 1.5µH EXTV V CC OUT2 VOUT2 5V 5V 5A 24V MBOT2 + 0.1µF RFBHI2 60.4k COUT2 R2 150k GND RUN2 3-CHANNEL POWER CONTROL RRUN2 SGND 10k TK/SS2 SS CAP2 PNP TEMP2 INTV SGND CC VFB2 R5 VFB2 10k R PGOOD3 LOCATED NEAR FB2 11.5k POWER STAGES COMP2 VIN3 SGND CIN5 INTERNAL 1µF 4.7µF COMP GND 50V 24V MTOP3 SW3 R3 SGND 3.3µH VOUT3 VOUT3 150k RUN3 12V 4A MBOT3 + RRUN3 0.1µF RFBHI3 60.4k C 10k OUT3 GND TK/SS3 SS CAP3 COMP3 VFB3 SGND VFB3 R SGND FB3 INTERNAL 4.32k SGND COMP 2.2Ω SGND SGND 4634 F01
Figure 1. Simplified LTM4634 Block Diagram
4634f For more information www.linear.com/LTM4634 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Related Parts
block DiagraM
INTERNAL BLOCK DIAGRAM MODE/PLLIN CNTL_PWR 1µF 2Ω 50V FREQ/PLLLPF VIN1 INTV 24V CC CIN1 1µF 4.7µF INTERNAL GND 50V 24V FILTER MTOP1 SW1 R1 V 150k 1.5µH IN(UVLO) = SGND VOUT1 VOUT1 RUN1 3.3V (R1 + 10k)1.3V 10k RRUN1 R + 5A MBOT1 0.1µF FBHI1 10k 60.4k COUT1 TK/SS1 GND SS COMP1 CAP1 VFB1 SGND VFB1 SGND INTERNAL LOCATED NEAR POWER STAGES RFB1 COMP 19.1k SGND SGND SGND PNP TEMP1 INTVCC R4 10k VIN2 PGOOD12 CIN3 + 1µF 4.7µF 100µF GND INTV 50V 50V CC MTOP2 SW2 4.7µF 1.5µH EXTV V CC OUT2 VOUT2 5V 5V 5A 24V MBOT2 + 0.1µF RFBHI2 60.4k COUT2 R2 150k GND RUN2 3-CHANNEL POWER CONTROL RRUN2 SGND 10k TK/SS2 SS CAP2 PNP TEMP2 INTV SGND CC VFB2 R5 VFB2 10k R PGOOD3 LOCATED NEAR FB2 11.5k POWER STAGES COMP2 VIN3 SGND CIN5 INTERNAL 1µF 4.7µF COMP GND 50V 24V MTOP3 SW3 R3 SGND 3.3µH VOUT3 VOUT3 150k RUN3 12V 4A MBOT3 + RRUN3 0.1µF RFBHI3 60.4k C 10k OUT3 GND TK/SS3 SS CAP3 COMP3 VFB3 SGND VFB3 R SGND FB3 INTERNAL 4.32k SGND COMP 2.2Ω SGND SGND 4634 F01
Figure 1. Simplified LTM4634 Block Diagram
4634f For more information www.linear.com/LTM4634 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Related Parts
