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HM5309 - PFM Step-Up DC-DC Controller

Datasheet Summary

Description

The HM5309 is a simple, compact PFM boost controller designed for applications where extremely low cost and small size are top priorities.

The output voltage is fixed at 9V with 1% accuracy from an input voltage range of +2.7V to +6.5V.

Features

  • Operating voltage range：2.7V to 6.5V.
  • Low Operating Current: 32uA@5V.
  • Fixed Output Voltage of 9V.
  • High Output voltage accuracy：±1%.
  • No Feedback Resistor needed.
  • Output Voltage can be adjusted upwards with External Resistor.
  • Output Power: up to 40W.
  • High Efficiency: up to 94%.
  • Chip Enable Input.
  • Operating Temperature Range -40°C to +85°C.
  • Available in SOT23-6.
  • Pb-free, rohs-Compliant and Halogen-free Pin Assignment 1 Typical Applicati.

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Datasheet Details

Part number HM5309
Manufacturer H&M semi
File Size 440.56 KB
Description PFM Step-Up DC-DC Controller
Datasheet download datasheet HM5309 Datasheet
Additional preview pages of the HM5309 datasheet.

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Full PDF Text Transcription

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HM5309 PFM Step-Up DC-DC Controller IC HM5309 General Description The HM5309 is a simple, compact PFM boost controller designed for applications where extremely low cost and small size are top priorities. The output voltage is fixed at 9V with 1% accuracy from an input voltage range of +2.7V to +6.5V. Low current consumption of 32uA typical makes HM5309 ideal for battery-powered applications. The HM5309 is designed specifically to provide a simple application circuit and minimize the size and number of external components, making them ideal for consumer electronics applications. The HM5309 adopts PFM operating mode, which provides excellent efficiency over a wide-range of input voltage and load currents.
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