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The RT7294B 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 RT7294B 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.
RT7294B
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) 2.5
Current Limit (typ) (A) 3.4
Freq (typ) (kHz) 500
Ext Sync No
Ron_HS (typ) (mOhm) 150
Ron_LS (typ) (mOhm) 90
Iq (typ) (mA) 0.5
Features ACOT Control;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;OCP;OTP;PSM;Stable with Ceramic Capacitor
Package Type TSOT-26(FC)
Features
  • 4.3V to 18V Input Voltage Range
  • 2.5A 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
  • Thermal Shutdown
  • Power Saving Mode for High Efficiency at Light Load
Datasheet
TitleLast UpdateDownload
2.5A, 18V, 500kHz ACOT® Synchronous Step-Down Converter2014/05/08
Reference Design
TitleLast UpdateDownload
Richtek Load Transient Tool2022/07/25
Please confirm with our distributor or sales representative for actual stock status.
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