Datasheet LTM4600 (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | 10A High Efficiency DC/DC µModule |
| 页数 / 页 | 26 / 1 — FeaTures. DescripTion. Complete Switch Mode Power Supply. Wide Input … |
| 文件格式/大小 | PDF / 433 Kb |
| 文件语言 | 英语 |
FeaTures. DescripTion. Complete Switch Mode Power Supply. Wide Input Voltage Range: 4.5V to 20V
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LTM4600 10A High Efficiency DC/DC µModule
FeaTures DescripTion
n
Complete Switch Mode Power Supply
The LTM®4600 is a complete 10A, DC/DC step down power n
Wide Input Voltage Range: 4.5V to 20V
supply. Included in the package are the switching control- n
10A DC, 14A Peak Output Current
ler, power FETs, inductor, and all support components. n
Parallel Two µModule
®
DC/DC Converters for 20A
Operating over an input voltage range of 4.5V to 20V, the
Output Current
LTM4600 supports an output voltage range of 0.6V to 5V, n
0.6V to 5V Output Voltage
set by a single resistor. This high efficiency design delivers n
1.5% Output Voltage Regulation
10A continuous current (14A peak), needing no heat sinks n
Ultrafast Transient Response
or airflow to meet power specifications. Only bulk input n
Current Mode Control
and output capacitors are needed to finish the design. n
RoHS Compliant Package
The low profile package (2.82mm) enables utilization of n Up to 92% Efficiency unused space on the bottom of PC boards for high density n Programmable Soft-Start point of load regulation. High switching frequency and an n Output Overvoltage Protection adaptive on-time current mode architecture enables a very n Optional Short-Circuit Shutdown Timer fast transient response to line and load changes without n Small Footprint, Low Profile (15mm × 15mm × sacrificing stability. Fault protection features include 2.82mm) Surface Mount LGA Package integrated overvoltage and short circuit protection with a defeatable shutdown timer. A built-in soft-start timer is
applicaTions
adjustable with a small capacitor. n The LTM4600 is packaged in a compact (15mm Telecom and Networking Equipment × 15mm) n and low profile (2.82mm) over-molded Land Grid Array Servers n (LGA) package suitable for automated assembly by stan- Industrial Equipment n dard surface mount equipment. The LTM4600 is RoHS Point of Load Regulation compliant. L, LT, LTC, LTM, µModule and OPTI-LOOP are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 5481178, 6100678, 6580258, 5847554, 6304066.
Typical applicaTion Efficiency vs Load Current with 12VIN (FCB = 0)
100
10A µModule Power Supply with 4.5V to 20V Input
90 VOUT 80 VIN VIN VOUT 4.5V TO 20V 1.5V C 10A C 70 IN LTM4600 OUT 60 VOSET PGND SGND 66.5k EFFICIENCY (%) 50 40 1.2VOUT 4600 TA01a 1.5VOUT 30 2.5VOUT 3.3VOUT 20 0 2 4 6 8 10 LOAD CURRENT (A) 4600 TA01b 4600fd For more information www.linear.com/LTM4600 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Application Package Description Revision History Typical Application Related Parts
FeaTures DescripTion
n
Complete Switch Mode Power Supply
The LTM®4600 is a complete 10A, DC/DC step down power n
Wide Input Voltage Range: 4.5V to 20V
supply. Included in the package are the switching control- n
10A DC, 14A Peak Output Current
ler, power FETs, inductor, and all support components. n
Parallel Two µModule
®
DC/DC Converters for 20A
Operating over an input voltage range of 4.5V to 20V, the
Output Current
LTM4600 supports an output voltage range of 0.6V to 5V, n
0.6V to 5V Output Voltage
set by a single resistor. This high efficiency design delivers n
1.5% Output Voltage Regulation
10A continuous current (14A peak), needing no heat sinks n
Ultrafast Transient Response
or airflow to meet power specifications. Only bulk input n
Current Mode Control
and output capacitors are needed to finish the design. n
RoHS Compliant Package
The low profile package (2.82mm) enables utilization of n Up to 92% Efficiency unused space on the bottom of PC boards for high density n Programmable Soft-Start point of load regulation. High switching frequency and an n Output Overvoltage Protection adaptive on-time current mode architecture enables a very n Optional Short-Circuit Shutdown Timer fast transient response to line and load changes without n Small Footprint, Low Profile (15mm × 15mm × sacrificing stability. Fault protection features include 2.82mm) Surface Mount LGA Package integrated overvoltage and short circuit protection with a defeatable shutdown timer. A built-in soft-start timer is
applicaTions
adjustable with a small capacitor. n The LTM4600 is packaged in a compact (15mm Telecom and Networking Equipment × 15mm) n and low profile (2.82mm) over-molded Land Grid Array Servers n (LGA) package suitable for automated assembly by stan- Industrial Equipment n dard surface mount equipment. The LTM4600 is RoHS Point of Load Regulation compliant. L, LT, LTC, LTM, µModule and OPTI-LOOP are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 5481178, 6100678, 6580258, 5847554, 6304066.
Typical applicaTion Efficiency vs Load Current with 12VIN (FCB = 0)
100
10A µModule Power Supply with 4.5V to 20V Input
90 VOUT 80 VIN VIN VOUT 4.5V TO 20V 1.5V C 10A C 70 IN LTM4600 OUT 60 VOSET PGND SGND 66.5k EFFICIENCY (%) 50 40 1.2VOUT 4600 TA01a 1.5VOUT 30 2.5VOUT 3.3VOUT 20 0 2 4 6 8 10 LOAD CURRENT (A) 4600 TA01b 4600fd For more information www.linear.com/LTM4600 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Application Package Description Revision History Typical Application Related Parts