Product Summary

The LT1170IQ is a monolithic high power switching regulator. The device can be operated in all standard switching configurations including buck, boost, flyback, forward, inverting and “Cuk”. A high current, high effi-ciency switch is included on the die along with all oscilla-tor, control and protection circuitry. Integration of all functions allows the LT1170IQ to be built in a standard 5-pin TO-3 or TO-220 power package as well as the 8-pin packages. The applications of the LT1170IQ include Logic Supply 5V at 10A, 5V Logic to ±15V Op Amp Supply, Battery Upconverter, Power Inverter (+ to-) or (- to +), Fully Floating Multiple Outputs.

Parametrics

LT1170IQ absolute maximum ratings: (1)Supply Voltage: 40V; (2)Switch Output Voltage: 75V; (3)Feedback Pin Voltage (Transient, 1ms): ±15V; (4)Storage Temperature Range: -65℃ to 150℃; (5)Lead Temperature (Soldering, 10 sec): 300℃; (6)Operating Junction Temperature Range: -55℃ to 150℃.

Features

LT1170IQ features: (1)Wide Input Voltage Range: 3V to 60V; (2)Low Quiescent Current: 6mA; (3)Internal 5A Switch (2.5A for LT1171, 1.25A for LT1172); (4)Shutdown Mode Draws Only 50μA Supply Current; (5)Very Few External Parts Required; (6)Self-Protected Against Overloads; (7)Operates in Nearly All Switching Topologies; (8)Flyback-Regulated Mode Has Fully Floating Outputs; (9)Comes in Standard 5-Pin Packages; (10)LT1172 Available in 8-Pin MiniDIP and Surface Mount Packages; (11)Can Be Externally Synchronized.

Diagrams

LT1170IQ block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LT1170IQ
LT1170IQ


IC REG MULTI CONFIG ADJ 5A D2PAK

Data Sheet

0-900: $5.10
LT1170IQ#PBF
LT1170IQ#PBF


IC REG MULTI CONFIG ADJ 5A D2PAK

Data Sheet

0-1: $8.74
1-25: $5.81
25-100: $5.10
LT1170IQ#TR
LT1170IQ#TR


IC REG MULTI CONFIG ADJ 5A D2PAK

Data Sheet

0-1500: $5.13
LT1170IQ#TRPBF
LT1170IQ#TRPBF


IC REG MULTI CONFIG ADJ 5A D2PAK

Data Sheet

0-750: $5.13