LT1074HVIT

5A monolithic bipolar, 64V, TO-220

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Price:: US $0.10~0.20 / piece [Get Latest Price]

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PartNumber:: LT1074HVIT

Brand:: Linear Technology - Linear | Pack: TO | D/C: 09+

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Products Upload time: 2012-05-08

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Part Number:LT1074HVIT
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Product Summary

The LT1074HVIT is a 5A monolithic bipolar switching regulator which requires only a few external parts for normal operation. The power switch, all oscillator and control circuitry, and all current limit components,are included on the chip. The LT1074HVIT is a classic positive buck configuration but several design innovations allow this device to be used as a positive-to-negative converter, a negative boost converter, and as a flyback converter. The switch output is specified to swing 40V below ground, allowing the LT1074HVIT to drive a tapped-inductor in the buck mode with output currents up to 10A. The LT1074HVIT is available in lowcost TO-220 or DD packages with frequency pre-set at 100kHz and current limit at 6.5A. A 7-pin TO-220 package is also available which allows current limit to be adjusted down to zero. In addition, full micropower shutdown can be programmed. See Application Note 44 for design details.

Parametrics

LT1074HVIT absolute maximum ratings: (1)Maximum Operating Junction Temperature Range Commercial: 0°C to 125°; (2)Maximum Operating Junction Temperature Range Industrial: –40°C to 125°; (3)Maximum Operating Junction Temperature Range Military: – 55°C to 150°; (4)Maximum Storage Temperature: –65°C to 150°; (5)Lead Temperature (Soldering, 10 sec): 300°C; (6)Feedback Pin Voltage: –2V, +10V; (7)Shutdown Pin Voltage (Not to Exceed VIN): 40V; (8)Input Voltage LT1074HV/LT1076HV: 64V; (9)Switch Voltage with Respect to Input Voltage LT1074HV/LT1076HV: 75V.

Features

LT1074HVIT features: (1)5A Onboard Switch (LT1074); (2)Operates Up to 60V Input; (3)100kHz Switching Frequency; (4)Greatly Improved Dynamic Behavior; (5)Available in Low Cost 5 and 7-Lead Packages; (6)Only 8.5mA Quiescent Current; (7)Programmable Current Limit; (8)Micropower Shutdown Mode.