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High Efficiency, 36V 100mA Synchronous Step-Down Converter

RT6208

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The RT6208 is a high-efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 100mA output current from a 4.75V to 36V input supply. It requires only 25μA typical supply current at no load while maintaining output voltage regulation. The RT6208 achieves Boundary Conduction Mode (BCM) operation, low quiescent current and programmable high-side peak current limit, providing high efficiency over a wide range of load currents. It also provides soft-start protection to eliminate input current surge during start-up. The low current (3μA) shutdown mode provides output disconnect, enabling easy power management in battery-powered systems. The RT6208 is available in a SOT-23-6 and SOT-23-8 packages.

Applications

  • Wireless Charger
  • Industrial and Commercial Low Power Systems
  • Green Electronics/Appliances
  • Point of Load Regulation for High-Performance DSPs
  • MCU Supply in Wireless LED Lighting
Key Spec.
RT6208
Status Active
Vin (min) (V) 4.75
Vin (max) (V) 36
Number of Outputs 1
Vout (min) (V) 0.8
Output Adj. Method Resistor
Iout (max) (A) 0.1
Current Limit (typ) (A) 0.225
Ext Sync No
Ron_HS (typ) (mOhm) 3000
Ron_LS (typ) (mOhm) 1500
Iq (typ) (mA) 0.16
Features Enable Input;OCP;OVP;PSM;Power Good
Package Type SOT-26;SOT-28
Features
  • Achieves Very High Efficiency in Low Load Conditions
  • ±1% High Accuracy Feedback Voltage
  • 4.75V to 36V Input Voltage Range
  • 100mA Output Current
  • Integrated High-Side and Low-Side Switches
  • No Compensation Required
  • Low Quiescent Current
  • Adjustable Peak Current Limit
  • Cycle-by-Cycle Over Current Protection
  • Input Under Voltage Lockout
  • Internal Soft-Start
  • Thermal Shutdown Protection
Datasheet
TitleLast UpdateShareDownload
High Efficiency, 36V 100mA Synchronous Step-Down Converter2015/05/25
Technical Documents
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The Best Battery Fuel Gauge Solution for TWS Headphone-RT94262019/06/24
Automotive Product Selection Guide2018/11/15
Richtek Wide Input Voltage Range DC/DC Power Solutions for Industrial, Automotive and LED lighting applications2018/11/01
Powering Microcontrollers from Industrial Supply Rails2016/06/21
Videos
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How to estimate control loop bandwidth from the transient response time?2017/03/30 621
Evaluation Boards
TitleLast UpdateShareDownload
High Efficiency, 36V 100mA Synchronous Step-Down Converter2018/11/08
Reference Design
TitleLast UpdateShareDownload
Richtek Load Transient Tool2019/01/09
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RT6208GESOT-263000 Request Buy from Distributor
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