(China (Mainland))
Product Summary
The LT1941EFE#TR is a triple current mode DC/DC converter with internal power switches. Two of the regulators are step-down converters with 3A and 2A power switches. The third regulator can be configured as a boost, inverter or SEPIC converter and has a 1.5A power switch. All three converters are synchronized to a 1.1MHz oscillator. The two step-down converters run with opposite phases, reducing input ripple current. The applications of the LT1941EFE#TR include Cable Modems, DSL Modems, Distributed Power Regulation, Wall Transformer Regulation, Disk Drives, DSP Power.
Parametrics
LT1941EFE#TR absolute maximum ratings: (1)VIN Pin: (-0.3V), 25V; (2)BOOST Pin Voltage: 35V; (3)BOOST Above SW Pin: 25V; (4)BIAS1, BIAS2 Pins: 25V; (5)PGOOD, 5GOOD, 12GOOD Pins: 25V; (6)RUN/SS, VC, FB, NFB Pins: 3V; (7)SW1, SW2 Voltage: VIN; (8)SW3 Voltage: 40V; (9)Maximum Junction Temperature: 125℃; (10)Operating Ambient Temperature Range: -40℃ to 85℃; (11)Storage Temperature Range: -65℃ to 150℃; (12)Lead Temperature (Soldering, 10 sec): 300℃.
Features
LT1941EFE#TR features: (1)Wide Input Range: 3.5V to 25V; (2)Three Switching Regulators with Internal Power Switches: 3A Step-Down, 2A Step-Down, 1.5A Inverting/Boost; (3)Antiphase Switching Reduces Ripple; (4)Independent Shutdown/Soft-Start Pins; (5)Independent Power Good Indicators Ease Supply Sequencing; (6)Input Voltage Power Good Indicators Monitor Input Supply; (7)Uses Small Inductors and Ceramic Capacitors; (8)Constant 1.1MHz Switching Frequency; (9)Thermally Enhanced 28-Lead TSSOP Package.
Diagrams
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 LT1941EFE#TR |
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IC REG MULTI CONFIG TRPL 28TSSOP |
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LT1941EFE#TRPBF |
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IC REG MULTI CONFIG TRPL 28TSSOP |
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