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The RT8260A is a high voltage buck converter that can support the input voltage range from 4.5V to 24V and the output current can be up to 1.8A. Current Mode operation provides fast transient response and eases loop stabilization.
The chip also provides protection functions such as cycle-by-cycle current limiting and thermal shutdown protection. The RT8260A is available in a WDFN-8L 2x2 package.

Applications

  • Distributed Power Systems
  • Battery Charger
  • Pre-Regulator for Linear Regulators
  • WLED Drivers
Key Spec.
RT8260A
Status Active
Vin (min) (V) 4.5
Vin (max) (V) 24
Number of Outputs 1
Vout (min) (V) 0.8
Vout (max) (V) 15
Output Adj. Method Resistor
Iout (max) (A) 1.8
Current Limit (typ) (A) 2.9
Freq (typ) (kHz) 1400
Ext Sync No
Ron_HS (typ) (mOhm) 300
Ron_LS (typ) (mOhm) 300
Iq (typ) (mA) 0.55
Features Current Mode Control;Cycle-by-Cycle Current Limit;Enable Input;Force PWM;Internal Compensation;OCP;OTP;Stable with Ceramic Capacitor;UVP
Package Type WDFN2x2-8
Features
  • Wide Operating Input Voltage Range : 4.5V to 24V
  • Adjustable Output Voltage Range : 0.8V to 15V
  • 1.8A Output Current
  • 0.3Ω Internal Power MOSFET Switch
  • High Efficiency up to 92%
  • 1.4MHz Fixed Switching Frequency
  • Stable with Low ESR Output Ceramic Capacitors
  • Thermal Shutdown
  • Cycle-By-Cycle Over Current Protection
  • RoHS Compliant and Halogen Free
Datasheet
TitleLast UpdateDownload
1.8A, 24V, 1.4MHz Step-Down Converter2010/08/18
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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