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ILC6390 - SOT-89 STEP-UP PFM SWITCHER

Datasheet Summary

Description

50 mA boost converter using Pulse Frequency Modulation, or PFM, technique, in 5-lead SOT-89 or a 5-lead SOT-23 package.

Only 3 external components are needed to complete the switcher design.

The ILC6390 automatically senses load variations to choose between 55% and 75% duty cycles.

Features

  • 85% conversion e.

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Datasheet preview – ILC6390

Datasheet Details

Part number ILC6390
Manufacturer Impala Linear Corporation
File Size 523.62 KB
Description SOT-89 STEP-UP PFM SWITCHER
Datasheet download datasheet ILC6390 Datasheet
Additional preview pages of the ILC6390 datasheet.

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Full PDF Text Transcription

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Impala Linear Corporation ILC6390/91 SOT-89 Step-Up PFM Switcher with Auto-Load Sense General Description 50 mA boost converter using Pulse Frequency Modulation, or PFM, technique, in 5-lead SOT-89 or a 5-lead SOT-23 package. Only 3 external components are needed to complete the switcher design. The ILC6390 automatically senses load variations to choose between 55% and 75% duty cycles. Normal operation is 55% duty at 155kHz; when load currents exceed the internal comparator trip point, a “turbo mode” kicks in to provide extended on-time switching (75% duty at 100kHz oscillation). Requiring only 30µA of supply current, the ILC6390 achieves efficiencies as high as 85% at 5V yet shuts down to 0.5µA max. Standard voltages offered are 2.5, 3.3, and 5.
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