L5985 Up to 2 A step down switching regulator

The L5985 is a step-down switching regulator with 2.5 A (min) current limited embedded power MOSFET, so it is able to deliver up to 2 A DC current to the load depending on the application condition.

The input voltage can range from 2.9 V to 18 V, while the output voltage can be set starting from 0.6 V to VIN. Having a minimum input voltage of 2.9 V, the device is suitable for 3.3 V bus.

Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.

The VFQFPN8 package with exposed pad allows reducing the RthJA down to approximately 60 °C/W

技术特性
  • 2 A DC output current
  • 2.9 V to 18 V input voltage
  • Output voltage adjustable from 0.6 V
  • 250 kHz switching frequency, programmable up to 1 MHz
  • Internal soft-start and Inhibit
  • Low dropout operation: 100% duty cycle
  • Voltage feed-forward
  • Zero load current operation
  • Over current and thermal protection
  • VFQFPN8 3 mm x 3 mm package
功能框图
L5985 订购信息
订购型号 产品状态 美金价格 数量 封装 包装形式 温度范围 材料声明
L5985TR Active   1000 VDFPN 8 3x3x1.0 Tape And Reel    
L5985 Active   1000 VDFPN 8 3x3x1.0 Tube    
DATASHEET
描述 版本 大小
L5985 : 2 A step-down switching regulator 5 857KB
DESIGN NOTES
描述 版本 大小
DN0011: ST1S03 alternative topology: Using a buck in a negative buck-boost configuration 1.0 360KB
BOARDS AND TOOLS
型号 描述
EVAL5985 Evaluation board for L5985: 2A step-down switching regulator
MARKETING BROCHURES
描述 版本 大小
BRFFX0210 :FFX: Full flexible amplification 1.0.0 864KB