LTC3723-1 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
LTC3723-1 典型应用
参数
LTC3723-1 参数
LTC3723-1 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 
LTC3723-1 数据手册及相关资料下载
  1. 数据手册(英文) : LTC3723-1/LTC3723-2 - Synchronous Push-Pull PWM Controllers.PDF
  2. 可靠性数据 : R302 Reliability Data .PDF