Datasheet LTM4614 (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | Dual 4A per Channel Low VIN DC/DC µModule Regulator |
| 页数 / 页 | 20 / 1 — FeaTures. DescripTion. Dual 4A Output Power Supply. Input Voltage Range: … |
| 文件格式/大小 | PDF / 380 Kb |
| 文件语言 | 英语 |
FeaTures. DescripTion. Dual 4A Output Power Supply. Input Voltage Range: 2.375V to 5.5V
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LTM4614 Dual 4A per Channel Low VIN DC/DC µModule Regulator
FeaTures DescripTion
n
Dual 4A Output Power Supply
The LTM®4614 is a complete 4A dual output switching mode n
Input Voltage Range: 2.375V to 5.5V
step-down µModule® regulator. Included in the package n
4A DC Typical, 5A Peak Output Current Each
are the switching controllers, power FETs, inductors and n
0.8V Up to 5V Output Each, Parallelable
all support components. The dual 4A DC/DC converters n ±
2% Max Total DC Output Error (0°C ≤ T
operate over an input voltage range of 2.375V to 5.5V.
J ≤ 125°C)
n
Output Voltage Tracking
The LTM4614 supports output voltages ranging from n Up to 95% Efficiency 0.8V to 5V. The regulator output voltages are set by a n Programmable Soft-Start single resistor for each output. Only bulk input and output n Short-Circuit and Overtemperature Protection capacitors are needed to complete the design. n Power Good Indicators The low profile package (2.82mm) enables utilization of n Small and Very Low Profile Package: unused space on the bottom of PC boards for high density 15mm × 15mm × 2.82mm point of load regulation.
applicaTions
Additional features include overvoltage protection, foldback overcurrent protection, thermal shutdown and programmable n Telecom and Networking Equipment soft-start. The power module is offered in a space saving and n FPGA Power thermally enhanced 15mm × 15mm × 2.82mm LGA pack- n SERDES and Other Low Noise Applications age. The LTM4614 is RoHS compliant with Pb-free finish. L, LT, LTC, LTM, µModule, Linear Technology and the Linear logo are registered trademarks
Different Combinations of Input and Output Voltages
and LTpowerCAD is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 5481178, 6580258,
NUMBER OF INPUTS NUMBER OF OUTPUTS IOUT(MAX)
6304066, 6127815, 6498466, 6611131, 6724174. 2 2 4A, 4A 2 (Current Share, 1 8A Ex. 3.3V and 5V) 1 2 4A, 4A 1 1 8A, see LTM4608A
Typical applicaTion Efficiency vs Output Current Dual Output 4A DC/DC µModule Regulator
91 VIN = 3.3V 89 VIN1 V 87 IN1 VOUT1 VOUT1 VOUT 3.3V TO 5V 1.2V/4A 1.5V FB1 85 10µF 100µF 10k LTM4614 83 VOUT 1.2V VIN2 81 V V EFFICIENCY (%) IN2 VOUT2 OUT2 3.3V TO 5V 1.5V/4A FB2 79 10µF 100µF 5.76k 77 GND1 GND2 75 4614 F01a 0 1 2 3 4 LOAD CURRENT (A) 4614 TA01b 4614fb 1 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 Package Description Revision History Package Photograph Related Parts
FeaTures DescripTion
n
Dual 4A Output Power Supply
The LTM®4614 is a complete 4A dual output switching mode n
Input Voltage Range: 2.375V to 5.5V
step-down µModule® regulator. Included in the package n
4A DC Typical, 5A Peak Output Current Each
are the switching controllers, power FETs, inductors and n
0.8V Up to 5V Output Each, Parallelable
all support components. The dual 4A DC/DC converters n ±
2% Max Total DC Output Error (0°C ≤ T
operate over an input voltage range of 2.375V to 5.5V.
J ≤ 125°C)
n
Output Voltage Tracking
The LTM4614 supports output voltages ranging from n Up to 95% Efficiency 0.8V to 5V. The regulator output voltages are set by a n Programmable Soft-Start single resistor for each output. Only bulk input and output n Short-Circuit and Overtemperature Protection capacitors are needed to complete the design. n Power Good Indicators The low profile package (2.82mm) enables utilization of n Small and Very Low Profile Package: unused space on the bottom of PC boards for high density 15mm × 15mm × 2.82mm point of load regulation.
applicaTions
Additional features include overvoltage protection, foldback overcurrent protection, thermal shutdown and programmable n Telecom and Networking Equipment soft-start. The power module is offered in a space saving and n FPGA Power thermally enhanced 15mm × 15mm × 2.82mm LGA pack- n SERDES and Other Low Noise Applications age. The LTM4614 is RoHS compliant with Pb-free finish. L, LT, LTC, LTM, µModule, Linear Technology and the Linear logo are registered trademarks
Different Combinations of Input and Output Voltages
and LTpowerCAD is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 5481178, 6580258,
NUMBER OF INPUTS NUMBER OF OUTPUTS IOUT(MAX)
6304066, 6127815, 6498466, 6611131, 6724174. 2 2 4A, 4A 2 (Current Share, 1 8A Ex. 3.3V and 5V) 1 2 4A, 4A 1 1 8A, see LTM4608A
Typical applicaTion Efficiency vs Output Current Dual Output 4A DC/DC µModule Regulator
91 VIN = 3.3V 89 VIN1 V 87 IN1 VOUT1 VOUT1 VOUT 3.3V TO 5V 1.2V/4A 1.5V FB1 85 10µF 100µF 10k LTM4614 83 VOUT 1.2V VIN2 81 V V EFFICIENCY (%) IN2 VOUT2 OUT2 3.3V TO 5V 1.5V/4A FB2 79 10µF 100µF 5.76k 77 GND1 GND2 75 4614 F01a 0 1 2 3 4 LOAD CURRENT (A) 4614 TA01b 4614fb 1 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 Package Description Revision History Package Photograph Related Parts