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ACT4088 - 1.4MHz Step-Down DC/DC Converter

This page provides the datasheet information for the ACT4088, a member of the ACT4088_Active 1.4MHz Step-Down DC/DC Converter family.

Description

The ACT4088 is a current-mode step-down DC/DC converter that supplies up to 1.5A into 5V from a 12V input.

1.4MHz switching frequency allows the use of tiny external components, and internal loop compensation provides simple, stable power supplies with a minimum of external components.

Features

  • Wide 4.5V to 28V Input Voltage Range 1.5A Output Current (12VIN to 5VOUT) Output Adjustable Down to 0.81V 0.3Ω Internal Power MOSFET Up to 92% Efficiency Stable with Low ESR Ceramic Output Capacitors Fixed 1.4MHz Operating Frequency Internal Soft-Start Function Over Current Protection with Hiccup-Mode Thermal Shutdown Available in a SOT23-6 Package.

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Datasheet preview – ACT4088

Datasheet Details

Part number ACT4088
Manufacturer Active-Semi
File Size 487.76 KB
Description 1.4MHz Step-Down DC/DC Converter
Datasheet download datasheet ACT4088 Datasheet
Additional preview pages of the ACT4088 datasheet.

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Full PDF Text Transcription

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Rev PrA, 24-Jul-07 Advanced Product Information – All Information Subject to Change ACT4088 28V, 1.5A, 1.4MHz Step-Down DC/DC Converter in SOT23-6 FEATURES            Wide 4.5V to 28V Input Voltage Range 1.5A Output Current (12VIN to 5VOUT) Output Adjustable Down to 0.81V 0.3Ω Internal Power MOSFET Up to 92% Efficiency Stable with Low ESR Ceramic Output Capacitors Fixed 1.4MHz Operating Frequency Internal Soft-Start Function Over Current Protection with Hiccup-Mode Thermal Shutdown Available in a SOT23-6 Package GENERAL DESCRIPTION The ACT4088 is a current-mode step-down DC/DC converter that supplies up to 1.5A into 5V from a 12V input. 1.
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