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

Vishay Siliconix

Description

Si9121 New Product Vishay Siliconix High-Voltage, Non-Isolated Buck-Boost Converter for ISDN Digital Phones .
The Si9121 simplifies the. 48-V to +5-V or +3.

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Datasheet Specifications

Part number: SI9121
Manufacturer: Vishay ↗ Siliconix
File Size: 72.42 KB
Datasheet: SI9121_VishaySiliconix.pdf
Description: High-Voltage/ Non-Isolated Buck-Boost Converter for ISDN Digital Phones

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 H

Applications

* the Si9121 is rated to the industrial temperature range of
* 40_C to 85_C. FUNCTIONAL BLOCK DIAGRAM GND VCC Regulator VCC Reference Generator VOUT BYPASS LX Control VOUT +5 V/400 mA or +3.3 V/400 mA COMP VNEG CS VNEG
* 48 V Document Number: 71112 S-00802
* Rev. B, 08-Ma

SI9121 Distributors

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

Vishay Siliconix SI9121-like datasheet