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RTQ1741A - High Efficiency Single Inductor Buck-Boost Converter

General Description

The RTQ1741A is a high efficiency single inductor BuckBoost Converter which can operate with wide input voltage such as battery which is higher or lower than the output voltage and it can supply the load current up to 4A.

Key Features

  • Operates from a Single Li-ion Cell : 1.8V to 5.5V.
  • Adjustable Output Voltage : 1.8V to 5.5V.
  • 3A Maximum Load Capability for VIN > 3.6V, VOUT = 3.3V.
  • Power Save Mode (PSM) for Improving Low Output Power Efficiency.
  • Fixed Frequency Operation at 2.4MHz and Synchronization Possible from 2.2MHz to 2.6MHz.
  • Up to 96% Efficiency.
  • Input Current Limit.
  • Internal Compensation.
  • RoHS Compliant and Halogen Free Pin Configuration (TOP VIEW) VINA 1 GND 2 FB 3 VOUT.

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Datasheet Details

Part number RTQ1741A
Manufacturer Richtek
File Size 171.63 KB
Description High Efficiency Single Inductor Buck-Boost Converter
Datasheet download datasheet RTQ1741A Datasheet

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® RTQ1741A High Efficiency Single Inductor Buck-Boost Converter General Description The RTQ1741A is a high efficiency single inductor BuckBoost Converter which can operate with wide input voltage such as battery which is higher or lower than the output voltage and it can supply the load current up to 4A. The maximum peak current in the switches is limited to a typical value of 4.5A. The RTQ1741A feedback loop is internally compensated for both Buck and Boost operation and it provides seamless transition between Buck and Boost modes and optimal transient response. The RTQ1741A operates at 2.4MHz typical switching frequency in full synchronous operation. The RTQ1741A operates in Pulse Skipped Modulation (PSM) mode for increasing efficiency during low power RF transmission modes.