Product Summary

The LT1074CT is a 5A (LT1076 is rated at 2A) 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 topology 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 LT1074 to drive a tappedinductor in the buck mode with output currents up to 10A. The LT1074 uses a true analog multiplier in the feedback loop. This makes the device respond nearly instantaneously to input voltage fluctuations and makes loop gain independent of input voltage. As a result, dynamic behavior of the regulator is significantly improved over previous designs.

 

Features

 

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LT1074CT
LT1074CT


IC REG MULTI CONFIG ADJ TO220-5

Data Sheet

0-1250: $3.15
LT1074CT#PBF
LT1074CT#PBF


IC REG MULTI CONFIG ADJ TO220-5

Data Sheet

0-1: $6.09
1-25: $4.04
25-100: $3.15
LT1074CT7#PBF
LT1074CT7#PBF


IC REG MULTI CONFIG ADJ TO220-7

Data Sheet

0-1: $7.12
1-25: $4.72
25-100: $3.66
LT1074CT7
LT1074CT7


IC REG MULTI CONFIG ADJ TO220-7

Data Sheet

0-1100: $3.66