SI9121 - High-Voltage/ Non-Isolated Buck-Boost Converter for ISDN Digital Phones

Product Overview

Vishay Siliconix

Datasheet Details

Part number	SI9121
Manufacturer	Vishay Siliconix
File Size	72.42 KB
Description	High-Voltage/ Non-Isolated Buck-Boost Converter for ISDN Digital Phones
Datasheet	SI9121 Datasheet
Additional preview pages of the SI9121 datasheet.

Product details

Description

The Si9121 simplifies the 48-V to +5-V or +3.3-V converter design for ISDN application by integrating the floating feedback error amplifier providing direct output voltage regulation.

Features

D Fixed +5-V or +3.3-V Output D Integrated Floating Feedback Amplifier D On-Chip 70-V, 1.5-W N-Channel MOSFET Switch D Integrated High Voltage Start-Up Circuit, with VCC Regulator D D D D D.
10-V to.
60-V Input Voltage Range 95-kHz PWM Operation Integrated Soft-Start and Oscillator High Efficiency Over Full Load Range Under Voltage Lockout D Current Mode Control D Hiccup Mode Short Circuit Protection D Thermal Shutdown D SOIC-8 Narrow-Body Package.

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Published: Apr 8, 2005 |