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1A, 1MHz, 6V CMCOT Synchronous Step-Down Converte

RT5710F

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The RT5710F is a high efficiency synchronous step-down DC-DC converter. Its input voltage range is from 2.5V to 6V and provides an adjustable regulated output voltage from 0.6V to 3.8V while delivering up to 1A of output current.

The internal synchronous low on-resistance power switches increase efficiency and eliminate the need for an external Schottky diode. The Current Mode Constant-On-time (CMCOT) operation with internal compensation allows the transient response to be optimized over a wide range of loads and output capacitors.

Applications

  • STB, Cable Modem, & xDSL Platforms
  • LCD TV Power Supply & Metering Platforms
  • General Purpose Point of Load (POL)
  • Internet of Things
Key Spec.
RT5710F
Status Active
Vin (min) (V) 2.5
Vin (max) (V) 6
Number of Outputs 1
Vout (min) (V) 0.6
Vout (max) (V) 3.8
Preset Vout (V)
Output Adj. Method Resistor
Iout (max) (A) 1
Current Limit (typ) (A) 1.5
Freq (typ) (kHz) 1000
Freq (min) (kHz)
Freq (max) (kHz)
Ext Sync No
Ron_HS (typ) (mOhm) 160
Ron_LS (typ) (mOhm) 110
Iq (typ) (mA) 0.022
Features Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;Internal Compensation;OCP;PSM;Power Good;UVP
Package Type WDFN2x2-6
Features
  • Efficiency Up to 95%
  • RDS(ON) 160mΩ HS / 110mΩ LS
  • VIN Range 2.5V to 6V
  • VREF 0.6V with ±1% Accuracy
  • CMCOT Control Loop Design for Best Transient Response, Robust Loop Stability with Low-ESR (MLCC) COUT
  • Fixed Soft-Start 1.2ms
  • Cycle-by-Cycle Over-Current Protection
  • Input Under-Voltage Lockout
  • Output Under-Voltage Protection (UVP Hiccup)
  • Thermal Shutdown Protection
  • Power Saving at Light Load
Datasheet
TitleLast UpdateShareDownload
1A, 1MHz, 6V CMCOT Synchronous Step-Down Converte2018/04/13
Reference Design
TitleLast UpdateShareDownload
Richtek Load Transient Tool2018/11/01
Design Tool
TitleLast UpdateShare
Richtek Designer™ Web Simulation Tool : RT5710FHGQW2019/04/16
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