Datasheet LTM4623 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | Ultrathin 20VIN, 3A Step-Down DC/DC µModule Regulator |
| Pages / Page | 28 / 1 — <2mm Height, Complete Solution in <1cm2. (Single-Sided PCB) or … |
| Revision | D |
| File Format / Size | PDF / 305 Kb |
| Document Language | English |
<2mm Height, Complete Solution in <1cm2. (Single-Sided PCB) or 0.5cm2 (Dual-Sided PCB)
Model Line for this Datasheet
Text Version of Document
LTM4623 Ultrathin 20VIN, 3A Step-Down DC/DC µModule Regulator FEATURES DESCRIPTION n
<2mm Height, Complete Solution in <1cm2
The LTM®4623 is a complete 3A step-down switching
(Single-Sided PCB) or 0.5cm2 (Dual-Sided PCB)
mode µModule (micromodule) regulator in a tiny ultrathin n Wide Input Voltage Range: 4V to 20V 6.25mm × 6.25mm × 1.82mm LGA and 6.25mm × 6.25mm n Input Voltage Down to 2.375V with External Bias × 2.42mm BGA packages. Included in the package are the n 0.6V to 5.5V Output Voltage switching controller, power FETs, inductor and support n 3A DC Output Current components. Operating over an input voltage range of n ±1.5% Maximum Total DC Output Voltage Error 4V to 20V or 2.375V to 20V with an external bias supply, n Current Mode Control, Fast Transient Response the LTM4623 supports an output voltage range of 0.6V to n
Low EMI EN55022 Class B Compliant
5.5V, set by a single external resistor. Its high efficiency n External Frequency Synchronization design delivers 3A continuous output current. Only ceramic n Multiphase Operation with Current Sharing input and output capacitors are needed. n Output Voltage Tracking The LTM4623 supports selectable discontinuous mode n Selectable Discontinuous Mode operation and output voltage tracking for supply rail se- n Power Good Indicator quencing. Its high switching frequency and current mode n Overvoltage, Overcurrent and Overtemperature Pro- control enable a very fast transient response to line and tection load changes without sacrificing stability. n Ultrathin (6.25mm × 6.25mm × 1.82mm) LGA Package and (6.25mm × 6.25mm × 2.42mm) BGA Package Fault protection features include overvoltage, overcurrent and overtemperature protection. APPLICATIONS The LTM4623 is available with SnPb (BGA) or RoHS compliant terminal finish. n PCIe and Backside PCB Mounting n Telecom, Datacom, Networking and Industrial All registered trademarks and trademarks are the property of their respective owners. Equipment n Data Storage Rack Units and Cards TYPICAL APPLICATION
1.5V Output Efficiency vs Load Current 3A, 1.5V Output DC/DC µModule
®
Step-Down Regulator
95 90 V CLKIN CLKOUT VOUT 85 IN 4V TO 20V V V 1.5V 10µF IN OUT 47µF 3A 25V SVIN 6.3V 80 RUN LTM4623 INTVCC PGOOD 75 MODE COMP EFFICIENCY (%) PHMODE FB 70 TRACK/SS 0.1µF FREQ 40.2k 65 VIN = 5V GND SGND VIN = 12V 60 4623 TA01a 0 0.5 1 1.5 2 2.5 3 LOAD CURRENT (A) 4623 TA01b Rev D Document Feedback For more information www.analog.com 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Package Description Revision History Package Photos Design Resources Related Parts
<2mm Height, Complete Solution in <1cm2
The LTM®4623 is a complete 3A step-down switching
(Single-Sided PCB) or 0.5cm2 (Dual-Sided PCB)
mode µModule (micromodule) regulator in a tiny ultrathin n Wide Input Voltage Range: 4V to 20V 6.25mm × 6.25mm × 1.82mm LGA and 6.25mm × 6.25mm n Input Voltage Down to 2.375V with External Bias × 2.42mm BGA packages. Included in the package are the n 0.6V to 5.5V Output Voltage switching controller, power FETs, inductor and support n 3A DC Output Current components. Operating over an input voltage range of n ±1.5% Maximum Total DC Output Voltage Error 4V to 20V or 2.375V to 20V with an external bias supply, n Current Mode Control, Fast Transient Response the LTM4623 supports an output voltage range of 0.6V to n
Low EMI EN55022 Class B Compliant
5.5V, set by a single external resistor. Its high efficiency n External Frequency Synchronization design delivers 3A continuous output current. Only ceramic n Multiphase Operation with Current Sharing input and output capacitors are needed. n Output Voltage Tracking The LTM4623 supports selectable discontinuous mode n Selectable Discontinuous Mode operation and output voltage tracking for supply rail se- n Power Good Indicator quencing. Its high switching frequency and current mode n Overvoltage, Overcurrent and Overtemperature Pro- control enable a very fast transient response to line and tection load changes without sacrificing stability. n Ultrathin (6.25mm × 6.25mm × 1.82mm) LGA Package and (6.25mm × 6.25mm × 2.42mm) BGA Package Fault protection features include overvoltage, overcurrent and overtemperature protection. APPLICATIONS The LTM4623 is available with SnPb (BGA) or RoHS compliant terminal finish. n PCIe and Backside PCB Mounting n Telecom, Datacom, Networking and Industrial All registered trademarks and trademarks are the property of their respective owners. Equipment n Data Storage Rack Units and Cards TYPICAL APPLICATION
1.5V Output Efficiency vs Load Current 3A, 1.5V Output DC/DC µModule
®
Step-Down Regulator
95 90 V CLKIN CLKOUT VOUT 85 IN 4V TO 20V V V 1.5V 10µF IN OUT 47µF 3A 25V SVIN 6.3V 80 RUN LTM4623 INTVCC PGOOD 75 MODE COMP EFFICIENCY (%) PHMODE FB 70 TRACK/SS 0.1µF FREQ 40.2k 65 VIN = 5V GND SGND VIN = 12V 60 4623 TA01a 0 0.5 1 1.5 2 2.5 3 LOAD CURRENT (A) 4623 TA01b Rev D Document Feedback For more information www.analog.com 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Package Description Revision History Package Photos Design Resources Related Parts
