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The RT5716 is a high switching frequency synchronous step-down converter with a quiescent current of 2.3μA. The device uses Ripple-Based Constant-On-Time (RBCOT) control to enhance load and line transient response, optimizing performance over a wide range of loads and output capacitors.The RT5716 has an input voltage range from 1.8V to 5.5V, making it suitable for battery applications. It provides 16 selectable output voltage levels by connecting a resistor between RSEL/MODE pin and GND. The Pulse Frequency Modulation (PFM) design maintains high efficiency during light loads. While at higher load conditions, the device automatically switches to PWM. The device can deliver up to 1A loading current. In shutdown mode, the supply current is typically 55nA, which is excellent for reducing power consumption.The RT5716 is available in TWL-CSP-6B 0.69x1.04 (BSC) and WDFN-6L 1.5x1.5 (FC) packages, which are the smallest packages for small-size applications.The recommended junction temperature range is -40°C to 125°C, and the ambient temperature range is -40°C to 85°C.

Applications

  • Hand-Held Devices
  • PCB Area Limited Applications
  • Asset Tracking Devices
  • Battery Powered Equipment
  • Wearable Devices
  • Internet of Things
Key Spec.
RT5716
Status Active
Vin (min) (V) 1.8
Vin (max) (V) 5.5
Number of Outputs 1
Vout (min) (V) 0.4
Vout (max) (V) 3.3
Output Adj. Method Resistor
Iout (max) (A) 1
Current Limit (typ) (A) 1.2;1.7
Freq (typ) (kHz) 4000
Ron_HS (typ) (mOhm) 120
Ron_LS (typ) (mOhm) 80
Iq (typ) (mA) 0.0025
Interface RESL
Features 100% Duty Cycle;Force PWM;OCP;OTP;PSM;SCP;UVP
Package Type WDFN1.5x1.5-6(FC);TWL-CSP0.69x1.04-6
Features
  • 4MHz Switching Frequency
  • 2.3μA Operating Quiescent Current
  • Input Voltage Range: 1.8V to 5.5V
  • 16 Selectable Output Voltages by RSEL/MODE Pin and Fixed Output Voltage Without RSEL Setting
  • RBCOT Control for Transient Response
  • PFM and Force Pulse Width Modulation (FPWM) Mode
  • Output Voltage Discharge
  • OCP, OTP, and UVLO Protection
  • Support up to 1A Loading Current
Technical Documents
TitleItem TypeLast UpdateDownload
RT5716 Design Tips and System Application Examples App. Note2024/11/18
Part NumberPackage TypePackage Qty.Free SampleDistributorStockBuy From Authorized Distributor
RT5716P-ABATWL-CSP0.69x1.04-63,000 Request Digikey 2,995 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
RT5716P-BBATWL-CSP0.69x1.04-63,000 Request Digikey 2,995 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
RT5716P-CBATWL-CSP0.69x1.04-63,000 Request Digikey 2,875 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
RT5716P-DBATWL-CSP0.69x1.04-63,000 Request Digikey 2,995 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
Evaluation Board
Part NumberDistributorStockBuy From Authorized Distributor
EVB_RT5716P-BBA Digikey 4 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
Please confirm with our distributor or sales representative for actual stock status.
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