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The RT7285C is a synchronous step-down converter with Advanced Constant On-Time (ACOT®) mode control. The ACOT® provides a very fast transient response with few external components. The low impedance internal MOSFET supports high efficiency operation with wide input voltage range from 4.3V to 18V. The proprietary circuit of the RT7285C enables to support all ceramic capacitors. The output voltage can be adjusted between 0.6V and 8V.

Applications

  • Industrial and Commercial Low Power Systems
  • Computer Peripherals
  • LCD Monitors and TVs
  • Green Electronics/Appliances
  • Point of Load Regulation for High-Performance DSPs,
    FPGAs, and ASICs
Key Spec.
RT7285C
Status Active
Vin (min) (V) 4.3
Vin (max) (V) 18
Number of Outputs 1
Vout (min) (V) 0.6
Vout (max) (V) 8
Output Adj. Method Resistor
Iout (max) (A) 1.5
Current Limit (typ) (A) 2.2
Freq (typ) (kHz) 500
Ext Sync No
Ron_HS (typ) (mOhm) 230
Ron_LS (typ) (mOhm) 130
Iq (typ) (mA) 0.5
Features ACOT Control;COT Control;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;OCP;OTP;Stable with Ceramic Capacitor;UVP
Package Type SOT-26;TSOT-26
Features
  • 4.3V to 18V Input Voltage Range
  • 1.5A Output Current
  • Advanced Constant On-Time Control
  • Fast Transient Response
  • Support All Ceramic Capacitors
  • Up to 95% Efficiency
  • 500kHz Switching Frequency
  • Adjustable Output Voltage from 0.6V to 8V
  • Cycle-by-Cycle Current Limit
  • Input Under-Voltage Lockout
  • Hiccup Mode Under-Voltage Protection
  • Thermal Shutdown
  • RoHS Compliant and Halogen Free
Evaluation Boards
TitleLast UpdateDownload
RT7285CGJ6 Evaluation Board2021/01/21
Reference Design
TitleLast UpdateDownload
Richtek Load Transient Tool2022/07/25
Part NumberPackage TypePackage Qty.Free SampleDistributorStockBuy From Authorized Distributor
RT7285CGJ6TSOT-263,000 Request Digikey 2,189 Buy
Mouser 2,630 Buy
Evaluation Board
Part NumberDistributorStockBuy From Authorized Distributor
EVB_RT7285CGJ6 Digikey 4 Buy
Mouser 5 Buy
Please confirm with our distributor or sales representative for actual stock status.
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