LTC3723-2 Synchronous Push-Pull PWM Controllers

The LTC®3723-1/LTC3723-2 synchronous push-pull PWM controllers provide all of the control and protection functions necessary for compact and highly efficient, isolated power converters. High integration minimizes external component count, while preserving design flexibility.

The robust push-pull output stages switch at half the oscillator frequency. Dead-time is independently programmed with an external resistor. Synchronous rectifier timing is adjustable to optimize efficiency. A UVLO program input provides precise system turn-on and turn off voltages. The LTC3723-1 features peak current mode control with programmable slope compensation and leading edge blanking, while the LTC3723-2 employs voltage mode control with voltage feedforward capability.

The LTC3723-1/LTC3723-2 feature extremely low operating and start-up currents. Both devices provide reliable short-circuit and overtemperature protection. The LTC3723-1/LTC3723-2 are offered in a 16-pin SSOP package

产品特点 Features

High Efficiency Synchronous Push-Pull PWM
1.5A Sink, 1A Source Output Drivers
Adjustable Push-Pull Dead-Time and Synchronous Timing
Adjustable System Undervoltage Lockout and Hysteresis
Adjustable Leading Edge Blanking
Low Start-Up and Quiescent Currents
Current Mode (LTC3723-1) and Voltage Mode (LTC3723-2) Operation
Single Resistor Slope Compensation
VCC UVLO and 25mA Shunt Regulator
Programmable Fixed Frequency Operation to 1MHz
50mA Synchronous Output Drivers
Soft-Start, Cycle-by-Cycle Current Limiting and Hiccup Mode Short-Circuit Protection
5V, 15mA Low Dropout Regulator
Available in 16-Pin SSOP Package

应用

Telecommunications, Infrastructure Power Systems
Distributed Power Architectures

典型应用图

参数

LTC3723-2 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC3723EGN-1	SSOP	16	E	$6.70	$4.55
LTC3723EGN-1#PBF	SSOP	16	E	$6.70	$4.55
LTC3723EGN-1#TR	SSOP	16	E		$4.61
LTC3723EGN-1#TRPBF	SSOP	16	E		$4.61
LTC3723EGN-2	SSOP	16	E	$6.70	$4.55
LTC3723EGN-2#PBF	SSOP	16	E	$6.70	$4.55
LTC3723EGN-2#TR	SSOP	16	E		$4.61
LTC3723EGN-2#TRPBF	SSOP	16	E		$4.61

LTC3723-2 数据手册及相关资料下载

数据手册(英文) : LTC3723-1/LTC3723-2 - Synchronous Push-Pull PWM Controllers.PDF
可靠性数据 : R302 Reliability Data .PDF