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The RT5712B is a high efficiency synchronous step-down DC-DC converter. Its input voltage range is from 2.7V to 6V and provides an adjustable regulated output voltage from 0.6V to 3.4V while delivering up to 2A 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)
Key Spec.
RT5712B
Status Active
Vin (min) (V) 2.7
Vin (max) (V) 6
Number of Outputs 1
Vout (min) (V) 0.6
Vout (max) (V) 3.4
Output Adj. Method Resistor
Iout (max) (A) 2
Current Limit (typ) (A) 2.9
Freq (typ) (kHz) 1000
Ext Sync No
Ron_HS (typ) (mOhm) 100
Ron_LS (typ) (mOhm) 70
Iq (typ) (mA) 0.3
Features Cycle-by-Cycle Current Limit;Enable Input;Force PWM;Internal Compensation;OCP;OTP;OVP;Stable with Ceramic Capacitor;UVP
Package Type WDFN2x2-6
Features
  • Efficiency Up to 95%
  • RDSON 100mΩ HS / 70mΩ LS
  • VIN Range 2.7V to 6V
  • VREF 0.6V with ±1.5% 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
Datasheet
TitleLast UpdateDownload
2A, 1MHz, 6V CMCOT Synchronous Step-Down Converter2019/04/11
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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