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RT4526 - Asynchronous Boost LED Driver

General Description

The RT4526 is a high frequency, asynchronous boost converter.

This converter can support White LEDs for backlighting and OLED power application, and the internal soft start function can reduce the inrush current.

Key Features

  • z VIN Operating Range : 2.5V to 5.5V z Internal Power N-MOSFET Switch z Wide Range for PWM Dimming (100Hz to 200kHz) z 1MHz Switching Frequency z Minimize the External Component Count z Internal Soft Start z Internal Compensation z Under Voltage Protection z Over Voltage Protection z Over Temperature Protection z Small TSOT-23-6 Package z RoHS Compliant and Halogen Free.

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Datasheet Details

Part number RT4526
Manufacturer Richtek
File Size 710.99 KB
Description Asynchronous Boost LED Driver
Datasheet download datasheet RT4526 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Preliminary RT4526 Small Package, High Performance, Asynchronous Boost LED Driver General Description The RT4526 is a high frequency, asynchronous boost converter. This converter can support White LEDs for backlighting and OLED power application, and the internal soft start function can reduce the inrush current. The device operates with 1MHz fixed switching frequency to allow small external components and to simplify possible EMI problems. For the protection, the RT4526 provides 30V OVP to allow inexpensive and small-output capacitors with lower voltage rating. The LED current is initially set with the external sense resistor RSET. The RT4526 is available in the tiny package type TSOT-23-6 package to provide the best solution for PCB space saving and total BOM cost.