Product Summary

The LTM4615V is a kind of complete 4A dual output switching mode DC/DC power supply plus an additional 1.5A VLDO (very low dropout) linear regulator. The pacakge includes 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 typical applications include: (1)Telecom and Networking Equipment; (2)Industrial Power Systems; (3)Low Noise Applications; (4)FPGA, SERDES Power.

Parametrics

Absolute maximum ratings: Switching Regulators: (1)VIN1, VIN2, PGOOD1, PGOOD2: –0.3V to 6V; (2)COMP1, COMP2, RUN/SS1, RUN/SS2, VFB1, VFB2,TRACK1, TRACK2: –0.3V to VIN; (3)SW, VOUT: –0.3V to (VIN + 0.3V); Very Low Dropout Regulator: (1)LDO_IN, PGOOD3: –0.3V to 6V; (2)LDO_OUT: –0.3 to 4V; (3)(EN3, FB3) to GND3: –0.3V to (LDO_IN + 0.3V); (4)LDO_OUT Short-Circuit: Indefi nite; (5)Internal Operating Temperature Range: –40℃ to 125℃; (6)Junction Temperature: 125℃; (7)Storage Temperature Range: –55℃ to 125℃.

Features

Features: (1)Dual 4A Output Power Supply with 1.5A VLDO.; (2)Short-Circuit and Overtemperature Protection; (3)Power Good Indicators; (4)Switching Regulators Section—Current Mode Control: Input Voltage Range: 2.375V to 5.5V; 4A DC Typical, 5A Peak Output Current Each; 0.8V Up to 5V Output Each, Parallelable; ±2% Total DC Output Error; Output Voltage Tracking; Up to 95% Efficiency; Programmable Soft-Start; (5)VLDO Section: VLDO, 1.14V to 3.5V Input Range; VLDO, 0.4V to 2.6V, 1.5A Output; VLDO, 40dB Supply Rejectioat fSW; ±1% Total DC Output Error; Small and Very Low Profile; Package: 15mm × 15mm × 2.82mm.

Diagrams

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