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LTM4615EVPBF 数据表(PDF) 1 Page - Linear Technology |
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LTM4615EVPBF 数据表(HTML) 1 Page - Linear Technology |
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1 / 24 page  LTM4615 1 4615f TYPICAL APPLICATION FEATURES APPLICATIONS DESCRIPTION Triple Output, Low Voltage DC/DC µModule Regulator The LTM®4615 is a complete 4A dual output switching mode DC/DC power supply plus an additional 1.5A VLDO (very low dropout) linear regulator. Included in the package are the switching controllers, power FETs, inductors, a 1.5A regulator and all support components. The dual 4A DC/DC converters operate over an input voltage range of 2.375V to 5.5V, and the VLDO operates from a 1.14V to 3.5V input. The LTM4615 supports output voltages ranging from 0.8V to 5V for the DC/DC converters, and 0.4V to 2.6V for the VLDO. The three regulator output voltages are set by a single resistor for each output. Only bulk input and output capacitors are needed to complete the design. The low profile package (2.82mm) enables utilization of unused space on the bottom of PC boards for high density point of load regulation. High switching frequency and a current mode architecture enables a very fast transient response to line and load changes without sacrificing stability. The device supports output voltage tracking for supply rail sequencing. Additional features include overvoltage protection, foldback overcurrent protection, thermal shutdown and programmable soft-start. The power module is offered in a space saving and thermally enhanced 15mm × 15mm × 2.82mm LGA package. The LTM4615 is Pb-free and RoHS compliant. n Telecom and Networking Equipment n Industrial Power Systems n Low Noise Applications n FPGA, SERDES Power n Dual 4A Output Power Supply with 1.5A VLDO™ n Short-Circuit and Overtemperature Protection n Power Good Indicators Switching Regulators Section—Current Mode Control n Input Voltage Range: 2.375V to 5.5V n 4A DC Typical, 5A Peak Output Current Each n 0.8V Up to 5V Output Each, Parallelable n ±2% Total DC Output Error n Output Voltage Tracking n Up to 95% Efficiency n Programmable Soft-Start VLDO Section n VLDO, 1.14V to 3.5V Input Range n VLDO, 0.4V to 2.6V, 1.5A Output n VLDO, 40dB Supply Rejection at fSW n ±1% Total DC Output Error n Small and Very Low Profile Package: 15mm × 15mm × 2.82mm 1.2V at 4A, 1.5V at 4A and 1V at 1A DC/DC μModule ® Regulator Efficiency vs Output Current PGOOD1 PGOOD1 FB1 TRACK1 RUN/SS1 LDO_IN EN3 GND1 GND2 LTM4615 GND3 VIN1 VIN2 VOUT1 VIN 1.2V VIN 3V TO 5.5V 10k 10k 100μF 6.3V 100μF 6.3V 22μF 6.3V 10μF 6.3V 22μF 6.3V 10μF 10μF 6.3V 10μF 6.3V VOUT1 1.2V 4A VOUT2 1.5V 4A PGOOD2 PGOOD2 FB2 TRACK2 VIN RUN/SS2 LDO_OUT FB3 PGOOD3 PGOOD3 VOUT2 5.76k 10k 4615 TA01a VOUT3 VOUT3 1V AT 1A 3.32k 10k LOAD CURRENT (A) 0 83 85 87 4 4615 TA01b 81 79 75 1 2 3 77 91 89 VIN = 3.3V VOUT2 1.5V VOUT3 1V (VIN = 1.2V) VOUT1 1.2V L, LT, LTC, LTM, Linear Technology, the Linear logo and μModule are registered trademarks of Linear Technology Corporation. VLDO 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, 6304066, 6127815, 6498466, 6611131, 6724174. |
类似零件编号 - LTM4615EVPBF |
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类似说明 - LTM4615EVPBF |
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