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Richtek

1.5A, 1MHz, 6V CMCOT Synchronous Step-Down Converter

RT5711C

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The RT5711C 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 3.4V while delivering up to 1.5A 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.

应用

  • STB, Cable Modem, & xDSL Platforms
  • LCD TV Power Supply & Metering Platforms
  • General Purpose Point of Load (POL)
  • IoT 物联网
主要规格
RT5711C
Status Active
Vin (min) (V) 2.5
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) 1.5
Current Limit (typ) (A) 1.8
Freq (typ) (kHz) 1000
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;UVP
Package Type WDFN2x2-6
关键特性
  • Efficiency Up to 95%
  • RDSON 160mΩ HS / 110mΩ LS
  • VIN Range 2.5V to 6V
  • VREF 0.6V with ±2% Accuracy
  • CMCOTTM 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
1.5A, 1MHz, 6V CMCOT Synchronous Step-Down Converter2015/09/02
Videos
TitleLast UpdateShareViews
怎样使用简单工具对电源转换器的稳定性进行测试评估?2017/03/30 570
Reference Design
TitleLast UpdateShareDownload
立锜负载瞬变测试工具2018/11/01
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