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RT8105

5V/12V 同步降壓型 DC/DC PWM 控制器

RT8105
New

RT8105為應用於供應PC系統邏輯電源的同步降壓型 DC/DC PWM 控制器。此高效能，具備可調的單端輸出產品，還具備內部緩開機、頻率補償網路、輸出監控與保護功能。固定操作頻率300kHz可提供優化的效率、元件數量與價位的解決方案。透過低端MOSFET的RDS(ON)壓差以達到可調的過電流保護監控功能。過電流保護功能透過4次的打嗝模式緩開機已達到錯誤偵測保護，並在電壓過低保護期間持續保持在打嗝模式操作。

應用

  • Graphic Card
  • Motherboard, Desktop Servers
  • IA Equipments
  • Telecomm Equipments
  • High Power DC-DC Regulators

主要規格

RT8105
Status NRND
Recommended Alternative  RT8120E/RT8120F
Vs (typ) (V) 12;5
Vin (min) (V) 3.3
Vin (max) (V) 12
Vout (min) (V) 0.8
Vout (max) (V) 5
Output Adj. Method Resistor
Accuracy (+/- %) 2
Freq (typ) (kHz) 300
Iq (typ) (mA) 6
Ext Sync No
Features Force PWM;OCP;OVP;SCP;UVP;Voltage Mode Control
Package Type SOP-8

關鍵特性

  • 5V 至 12V 供應電壓

  • 驅動所有低成本N-MOSFET

  • 電壓摸式PWM控制

  • 300kHz 固定切換頻率

  • 快速暫態回應:

  • 高速GM 放大器

  • 廣範圍0 至 100% 責任週期

  • 內建緩開機

  • 適用於非交迭式的閘極驅動

  • 不需外加電流感測電阻的MOSFET過電流錯誤偵測機制，

  • 全時序電壓過高保護

  • 符合RoHS規範與無鹵特性

與銷售人員聯繫