Product Summary

The LTC1702AIGN is a dual switching regulator controller optimized for high efficiency with low input voltages. The device includes two complete, on-chip, independent switching regulator controllers each designed to drive a pair of external Nchannel MOSFETs in a voltage mode feedback, synchronous buck configuration. The LTC1702AIGN uses a constant-frequency, true PWM design switching at 550kHz, minimizing external component size and cost and maximizing load transient performance. The synchronous buck architecture
automatically shifts to discontinuous and then to Burst Mode operation as the output load decreases, ensuring maximum efficiency over a wide range of load currents. The applications of the LTC1702AIGN include Microprocessor, DSP Core and I/O Supplies, Multiple Logic Supply Generator, Distributed Power Applications and High Efficiency Power Conversion.

Parametrics

LTC1702AIGN absolute maximum ratings: (1)Supply Voltage, VCC: 7V; BOOSTn: 15V; BOOSTn – SWn: 7V; (2)Input Voltage, SWn: – 1V to 8V; All Other Inputs: – 0.3V to VCC + 0.3V; (3)Peak Output Current < 10μs, TGn, BGn: 5A; (4)Operating Temperature Range: –40 to 85℃; (5)Storage Temperature Range: –65 to 150℃; (6)Lead Temperature (Soldering, 10 sec): 300℃.

Features

LTC1702AIGN features: (1)Pin Compatible with the LTC1702 with Improved Current Limit Control; (2)Two Sides Run Out-of-Phase to Minimize CIN; (3)No External Current Sense Resistors; (4)Excellent Output Regulation: 1% Total Output Accuracy; (5)Two Independent Controllers in One Package; (6)All N-Channel External MOSFET Architecture; (7)550kHz Switching Frequency Minimizes External Component Size; (8)1A to 25A Output Current per Channel; (9)High Efficiency over Wide Load Current Range; (10)Less Than 100μA Shutdown Current; (11)Small 24-Pin Narrow SSOP Package.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LTC1702AIGN#TRPBF
LTC1702AIGN#TRPBF

IC REG CTRLR BUCK PWM VM 24-SSOP
Data Sheet
0-2500: $3.31
LTC1702AIGN#TR
LTC1702AIGN#TR

IC REG CTRLR BUCK PWM VM 24-SSOP
Data Sheet
0-2500: $3.32
LTC1702AIGN#PBF
LTC1702AIGN#PBF

IC REG CTRLR BUCK PWM VM 24-SSOP
Data Sheet
0-1: $6.56
1-25: $4.35
25-100: $3.28
LTC1702AIGN
LTC1702AIGN

IC REG CTRLR BUCK PWM VM 24-SSOP
Data Sheet
0-1155: $3.28