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RT9027A/RT9027B

线性风扇马达驱动器

RT9027A/RT9027B
New

RT9027A/B 是高性能的电压调节器，具有非常低的电压差和高达 0.5A 的输出能力。其 VSET 端电压应高于 1V 以确保输出电压 VOUT 为 VSET 电压的 1.6 倍，当 VSET 低于 1V 时，IC 将进入关机状态。当 FON 处于低电平时，VOUT 与输入端处于直通状态；而在 RT9027B 中，端子FON成为使能端 EN 。RT9027A/B 在全输入、输出范围和各种温度条件下提供卓越的调节性能，其封装为 SOP-8。

应用

  • 笔记本电脑 Fan Driver
  • 电池供电系统
  • Motherboard
  • Peripheral Card

主要规格

RT9027A RT9027B
Status EOL EOL
Vin (min) (V) 4.5 4.5
Vin (max) (V) 5.5 5.5
Vout (min) (V) 1.6 1.6
Vout (max) (V) 5 5
Output Adj. Method Ext Vref Ext Vref
Accuracy (+/- %) 3 3
Iout (max) (mA) 500 500
Iq (typ) (uA) 300 300
Vdropout @ rated current (typ) (mV) 150 @ 0.5A 150 @ 0.5A
Cout Type Ceramic Ceramic
Features Enable Input;OCP;Output Discharge;SCP;Stable with Ceramic Capacitor Enable Input;OCP;Output Discharge;SCP;Stable with Ceramic Capacitor
Package Type SOP-8 SOP-8

关键特性

  • 输出电压 VOUT 跟随 VSET 的 1.6 倍变化

  • 0.5A 是的直通压差为 150mV

  • 有过流保护和过热保护

  • FON 可控制 VOUT 进入直通状态

  • 符合 RoHS 规范，完全无铅

Datasheet

DS9027AB-02.pdf

Datasheet

DS9027AB-02.pdf

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