電流 - 輸出/通道 24W±5%
狀態 Prod
Vdd(V) 6-30
腳位數 MSOP-10
文件 Eval Board
驅動類型 Boost Step-up
效率(%) 90
功率晶體管 Built-in
IC代碼 3505 = 3505
產品系列 31 = Commercial/Industrial Analog
產品類別 LT = Lighting LED Driver
腳位/封裝 S = MSOP
焊料類型 L = Lead-free (RoHS Compliant)
Temperature Grade S2 = Industrial temp. (-40°C to 85°C)
包裝選項 TR = Tape & Reel
外包裝 Tape on Reel

IS31LT3505-SLS2-TR 特徵

  • High efficiency: 90% typical
  • Over-temperature protection
  • MSOP-10 package


The IS31LT3505 is a constant current step-up converter with internal NMOS. The step-up converter topology allows series connection of the white LEDs so the LED currents are identical for uniform brightness as well as constant output voltage to drive other devices. The output current of each channel can be set by an external resistor and dimming the brightness of LEDs with the PWM signal or DC voltage. The IS31LT3505 operates with a switching frequency up to 1MHz. A low 0.3V feedback voltage minimizes power loss in the current setting resistor for better efficiency. With OVP circuit, the chip and the system can be safe even if the load is not connected. IS31LT3505 is available in MSOP-10. It operates from 6V to 30V over the temperature range of -40°C to +85°C.