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LR8301 - SMALL PACKAGE PFM CONTROL STEP-UP DC/DC CONVERTER

Key Features

  • Low voltage operation: Startup at 0.9 V min. (IOUT = 1 mA) guaranteed.
  • Duty ratio: 66/78%, builtin auto switching type PFM controller.
  • External parts: Coil, capacitor, diode.
  • Output voltage: Settable to between 1.8 to 6.5 V in 0.1 V steps.
  • Accuracy of ±2%.
  • High efficiency：±85%（typ. ）.
  • Standard function (product type A).
  • Shutdown function (product type C、D).
  • External transistor type available (product type B、D) Order.

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Datasheet Details

Part number LR8301
Manufacturer LRC
File Size 416.72 KB
Description SMALL PACKAGE PFM CONTROL STEP-UP DC/DC CONVERTER
Datasheet download datasheet LR8301 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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LESHAN RADIO COMPANY, LTD. SMALL PACKAGE PFM CONTROL STEP-UP DC/DC CONVERTER Introduction The LR8301 Series is a CMOS PFM-control step-up switching DC/DC converter that mainly consists of a reference voltage source, an oscillator, and a comparator. The PFM controller allows the duty ratio to be automatically switched according to the load (light load: 50%, high output current: 75%), enabling products with a low ripple over a wide range, high efficiency, and high output current. With the LR8301 Series, a step-up switching DC/DC converter can be configured by using an external coil, capacitor, and diode. The built-in MOS FET is turned off by a protection circuit when the voltage at the LX pin exceeds the limit to prevent it from being damaged.