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RT9027A/RT9027B

線性風扇馬達驅動器

RT9027A/RT9027B
New

RT9027A/B 是高性能的電壓調節器，具有非常低的電壓差和高達 0.5A 的輸出能力。其 VSET 端電壓應高於 1V 以確保輸出電壓 VOUT 為 VSET 電壓的 1.6 倍，當 VSET 低於 1V 時，IC 將進入關機狀態。當 FON 處於低電平時，VOUT 與輸入端處於直通狀態；而在 RT9027B 中，端子FON成為使能端 EN 。RT9027A/B 在全輸入、輸出範圍和各種溫度條件下提供卓越的調節性能，其封裝為 SOP-8。

應用

  • 筆記型電腦 Fan Driver
  • 電池供電系統
  • Motherboard
  • Peripheral Card

主要規格

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

關鍵特性

  • 輸出電壓 VOUT 跟隨 VSET 的 1.6 倍變化

  • 0.5A 是的直通壓差為 150mV

  • 有過流保護和過溫保護

  • FON 可控制 VOUT 進入直通狀態

  • 符合 RoHS 規範，完全無鉛

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