Datasheet LTM4628 (Analog Devices) - 9
| Manufacturer | Analog Devices |
| Description | Dual 8A or Single 16A DC/DC µModule Regulator |
| Pages / Page | 36 / 9 — SIMPLIFIED BLOCK DIAGRAM. Figure 1. Simplified LTM4628 Block Diagram |
| File Format / Size | PDF / 1.1 Mb |
| Document Language | English |
SIMPLIFIED BLOCK DIAGRAM. Figure 1. Simplified LTM4628 Block Diagram
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Text Version of Document
LTM4628
SIMPLIFIED BLOCK DIAGRAM
PGOOD1 TRACK1 VIN SS CAP C C 1µF IN1 IN2 10µF 10µF 35V 35V GND R V T IN TEMP 100µA = VIN MTOP1 RT CLKOUT SW1 RUN1 0.68µH VOUT1 1.5V/8A MODE_PLLIN + MBOT1 2.2µF COUT1 PHASEMD GND VOUTS1 COMP1 60.4k VFB1 INTERNAL RFB1 COMP SGND POWER 40.2k CONTROL PGOOD2 TRACK2 VIN INTVCC C C SS CAP 1µF IN3 IN4 4.7µF 10µF 10µF GND 35V 35V EXTVCC MTOP2 SW2 0.68µH VOUT2 1.2V/8A + RUN2 MBOT2 2.2µF COUT2 GND VOUTS2 60.4k COMP2 XI + V – FB2 RFB2 INTERNAL 60.4k COMP fSET R INTERNAL fSET FILTER SGND DIFFOUT DIFFN DIFFP 4628 BD
Figure 1. Simplified LTM4628 Block Diagram DECOUPLING REQUIREMENTS TA = 25°C. Use Figure 1 configuration. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
External Input Capacitor Requirement CIN1, CIN3 (VIN1 = 4.5V to 26.5V, VOUT1 = 1.5V) IOUT1 = 8A 22 µF CIN2, CIN4 (VIN2 = 4.5V to 26.5V, VOUT2 = 1.5V) IOUT2 = 8A 22 µF External Output Capacitor Requirement COUT1 (VIN1 = 4.5V to 26.5V, VOUT1 = 1.5V) IOUT1 = 8A 300 µF COUT2 (VIN2 = 4.5V to 26.5V, VOUT2 = 1.5V) IOUT2 = 8A 300 µF 4628fe For more information www.linear.com/LTM4628 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Package Photos Revision History Typical Application Related Parts
SIMPLIFIED BLOCK DIAGRAM
PGOOD1 TRACK1 VIN SS CAP C C 1µF IN1 IN2 10µF 10µF 35V 35V GND R V T IN TEMP 100µA = VIN MTOP1 RT CLKOUT SW1 RUN1 0.68µH VOUT1 1.5V/8A MODE_PLLIN + MBOT1 2.2µF COUT1 PHASEMD GND VOUTS1 COMP1 60.4k VFB1 INTERNAL RFB1 COMP SGND POWER 40.2k CONTROL PGOOD2 TRACK2 VIN INTVCC C C SS CAP 1µF IN3 IN4 4.7µF 10µF 10µF GND 35V 35V EXTVCC MTOP2 SW2 0.68µH VOUT2 1.2V/8A + RUN2 MBOT2 2.2µF COUT2 GND VOUTS2 60.4k COMP2 XI + V – FB2 RFB2 INTERNAL 60.4k COMP fSET R INTERNAL fSET FILTER SGND DIFFOUT DIFFN DIFFP 4628 BD
Figure 1. Simplified LTM4628 Block Diagram DECOUPLING REQUIREMENTS TA = 25°C. Use Figure 1 configuration. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
External Input Capacitor Requirement CIN1, CIN3 (VIN1 = 4.5V to 26.5V, VOUT1 = 1.5V) IOUT1 = 8A 22 µF CIN2, CIN4 (VIN2 = 4.5V to 26.5V, VOUT2 = 1.5V) IOUT2 = 8A 22 µF External Output Capacitor Requirement COUT1 (VIN1 = 4.5V to 26.5V, VOUT1 = 1.5V) IOUT1 = 8A 300 µF COUT2 (VIN2 = 4.5V to 26.5V, VOUT2 = 1.5V) IOUT2 = 8A 300 µF 4628fe For more information www.linear.com/LTM4628 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Package Photos Revision History Typical Application Related Parts
