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Richtek RT 8206A IC Regulator QFN-32

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Brand new Richtek RT8206A QFN-32

General Description


The RT8206A/B dual step-down, Switch Mode Power Supply (SMPS) controller generates logic supply voltages in battery powered systems. The RT8206A/B includes two Pulse Width Modulation (PWM) controllers fixed at 5V/3.3V or adjustable from 2V to 5.5V. An optional external charge pump can be monitored through SECFB (RT8206A). This device also features a linear regulator providing a fixed 5V output. The linear regulator provides up to 70mA output current with automatic linear regulator bootstrapping to the BYP input. The RT8206A/B includes on-board power up sequencing, the power good outputs, internal soft-start, and internal soft-discharge output that prevents negative voltages on shutdown.


Features:

  • Wide Input Voltage Range 6V to 25V
  • Dual Fixed 5V/3.3V Outputs or Adjustable from 2V to 5.5V, 1.5% Accuracy
  • Secondary Feedback Input Maintains Charge Pump Voltage (RT8206A)
  • Independent Enable and Power Good
  • 5V Fixed LDO Output : 70mA
  • 2V Reference Voltage ±1% : 50μA
  • Constant ON-Time Control with 100ns Load Step Response
  • Frequency Selectable via TON Setting
  • RDS(ON) Current Sensing and Programmable Current Limit
  • Selectable PWM, DEM or Ultrasonic Mode
  • Internal Soft-Start with 5 Steps Current Limiting and Soft-Discharge
  • High Efficiency Up to 97%
  • 5mW Quiescent Power Dissipation
  • Thermal Shutdown
  • RoHS Compliant and Halogen Free

Datasheet:

https://www.richtek.com/assets/product_file/RT8206A=RT8206B/DS8206AB-06.pdf