Datasheet LTM4630A (Analog Devices) - 9
| Manufacturer | Analog Devices |
| Description | Dual 18A or Single 36A DC/DC μModule Regulator |
| Pages / Page | 38 / 9 — SIMPLIFIED BLOCK DIAGRAM. Figure 1. Simplified LTM4630A Block Diagram |
| File Format / Size | PDF / 1.9 Mb |
| Document Language | English |
SIMPLIFIED BLOCK DIAGRAM. Figure 1. Simplified LTM4630A Block Diagram
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Text Version of Document
LTM4630A
SIMPLIFIED BLOCK DIAGRAM
PGOOD1 VIN TRACK1 V 4.5V TO 18V IN SS CAP C C 0.1µF IN1 IN2 22µF 22µF 25V 25V GND V R IN T TEMP = 100µA VIN MTOP1 RT CLKOUT SW1 OR TEMP MONITORS RUN1 0.56µH V VOUT1 OUT1 1.5V MODE_PLLIN + 18A MBOT1 0.22µF COUT1 PHASEMD GND VOUTS1 COMP1 60.4k VFB1 INTERNAL RFB1 COMP 40.2k SGND POWER CONTROL PGOOD2 TRACK2 VIN INTVCC C C SS CAP 0.1µF IN3 IN4 4.7µF 22µF 22µF GND 25V 25V EXTVCC MTOP2 SW2 0.56µH V V OUT2 OUT2 1.2V RUN2 + 18A MBOT2 0.22µF COUT2 GND VOUTS2 60.4k COMP2 + V – FB2 RFB2 INTERNAL 60.4k COMP fSET R INTERNAL FSET FILTER SGND DIFFOUT DIFFN DIFFP 4630A BD
Figure 1. Simplified LTM4630A Block Diagram DECOUPLING REQUIREMENTS TA = 25°C. Use Figure 1 configuration. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
External Input Capacitor Requirement CIN1, CIN2 (VIN1 = 4.5V to 18V, VOUT1 = 1.5V) IOUT1 = 18A 44 µF CIN3, CIN4 (VIN2 = 4.5V to 18V, VOUT2 = 1.2V) IOUT2 = 18A 44 µF External Output Capacitor Requirement COUT1 (VIN1 = 4.5V to 18V, VOUT1 = 1.5V) IOUT1 = 18A 400 µF COUT2 (VIN2 = 4.5V to 18V, VOUT2 = 1.2V) IOUT2 = 18A 400 µF 4630afb For more information www.linear.com/LTM4630A 9 Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Related Parts
SIMPLIFIED BLOCK DIAGRAM
PGOOD1 VIN TRACK1 V 4.5V TO 18V IN SS CAP C C 0.1µF IN1 IN2 22µF 22µF 25V 25V GND V R IN T TEMP = 100µA VIN MTOP1 RT CLKOUT SW1 OR TEMP MONITORS RUN1 0.56µH V VOUT1 OUT1 1.5V MODE_PLLIN + 18A MBOT1 0.22µF COUT1 PHASEMD GND VOUTS1 COMP1 60.4k VFB1 INTERNAL RFB1 COMP 40.2k SGND POWER CONTROL PGOOD2 TRACK2 VIN INTVCC C C SS CAP 0.1µF IN3 IN4 4.7µF 22µF 22µF GND 25V 25V EXTVCC MTOP2 SW2 0.56µH V V OUT2 OUT2 1.2V RUN2 + 18A MBOT2 0.22µF COUT2 GND VOUTS2 60.4k COMP2 + V – FB2 RFB2 INTERNAL 60.4k COMP fSET R INTERNAL FSET FILTER SGND DIFFOUT DIFFN DIFFP 4630A BD
Figure 1. Simplified LTM4630A Block Diagram DECOUPLING REQUIREMENTS TA = 25°C. Use Figure 1 configuration. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
External Input Capacitor Requirement CIN1, CIN2 (VIN1 = 4.5V to 18V, VOUT1 = 1.5V) IOUT1 = 18A 44 µF CIN3, CIN4 (VIN2 = 4.5V to 18V, VOUT2 = 1.2V) IOUT2 = 18A 44 µF External Output Capacitor Requirement COUT1 (VIN1 = 4.5V to 18V, VOUT1 = 1.5V) IOUT1 = 18A 400 µF COUT2 (VIN2 = 4.5V to 18V, VOUT2 = 1.2V) IOUT2 = 18A 400 µF 4630afb For more information www.linear.com/LTM4630A 9 Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Related Parts
