Product Summary

The LTC1474IS8#TR is a high efficiency step-down converter with internal P-channel MOSFET power switches that draws only 10mA typical DC supply current at no load while maintaining output voltage. The LTC1474IS8#TR uses logic-controlled shutdown while the LTC1475 features pushbutton on/off. The applications of the LTC1474IS8#TR include Cellular Telephones and Wireless Modems, 4mA to 20mA Current Loop Step-Down Converter, Portable Instruments, Battery-Operated Digital Devices, Battery Chargers, Inverting Converters, Intrinsic Safety Applications.

Parametrics

LTC1474IS8#TR absolute maximum ratings: (1)Input Supply Voltage (VIN): -0.3V to 20V; (2)Switch Current (SW, SENSE): 750mA; (3)Switch Voltage (SW): (VIN – 20V) to (VIN + 0.3V); (4)VFB (Adjustable Versions): -0.3V to 12V; (5)VOUT (Fixed Versions): -0.3V to 20V; (6)LBI, LBO: -0.3V to 20V; (7)RUN, SENSE: -0.3V to (VIN + 0.3V).

Features

LTC1474IS8#TR features: (1)High Efficiency: Over 92% Possible; (2)Very Low Standby Current: 10mA Typ; (3)Available in Space Saving 8-Lead MSOP Package; (4)Internal 1.4W Power Switch (VIN = 10V); (5)Wide VIN Range: 3V to 18V Operation; (6)Very Low Dropout Operation: 100% Duty Cycle; (7)Low-Battery Detector Functional During Shutdown; (8)Programmable Current Limit with Optional Current Sense Resistor (10mA to 400mA Typ); (9)Short-Circuit Protection; (10)Few External Components Required; (11)Active Low Micropower Shutdown: IQ = 6mA Typ; (12)Pushbutton On/Off (LTC1475 Only); (13)3.3V, 5V and Adjustable Output Versions.

Diagrams

LTC1474IS8#TR block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LTC1474IS8#TR
LTC1474IS8#TR


IC REG BUCK ADJ 0.75A 8SOIC

Data Sheet

0-2500: $2.67
LTC1474IS8#TRPBF
LTC1474IS8#TRPBF


IC REG BUCK ADJ 0.75A 8SOIC

Data Sheet

0-2500: $2.67