VP2128 – Synchronous-Rectified Buck Converter

VP2128 Datasheet PDF learn more.

Part number : VP2128

Functions : This is a kind of semiconductor, Synchronous-Rectified Buck Converter.

Pin arrangement :

Package information :

Manufacturer : Viva Electronics

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VP2128 Datasheet PDF

The texts in the PDF file :

VP2128 2A, 18V, Synchronous-Rectified Buck Converter


The VP2128 is an efficiency and low-cost buck converter with integrated low RDS(ON) high-side 150mΩ and low-side 130mΩ MOSFET


4.5V to 18V Input Voltage Range Adjustable Output from 0.922V to 16V 2A Output Current Integrated 150mΩ/130mΩ MOSFET Switches 0.922V Voltage Reference with 2% Accuracy 93% Conversion Efficiency at 5V/1A Output Adapted Current Mode PWM Operation Fixed 340kHz Switching Frequency such as programmable total Integrated Boot-Diode Programmable Soft-Start Function Over Voltage and Under Voltage Protection Over Temperature and Over Current Limitation RoHS 2.0 compliant SO-8P Green Package with Exposed Pad switches. It is capable of delivering 2A output current over a wide range of supplying voltage from 4.5V to 18V. With a simple voltage divider, the output voltage is easily adjustable from 0.922V to 16V. Other features soft-start, fault-free integrated protection Boot-Diode, and 93% conversion efficiency at 5V/1A output make VP2128 ideally to be used in portable consumer electronics. The VP2128 is available in popular SO-8P green package with exposed pad. Applications Set-Up Box Networking Device MID/Netbook/Pad-Device LCD Monitor/ LCD TV Typical Application VP2128 Rev A.01 -1- 2013/01/03 Visit http://www.viva-elec.com.tw for our products Free Datasheet http:/// VP2128 Functional Block Diagram Pin Assignments And


s Pin No. Pin I/O/P Function


High-Side N Channel MOSFET Gate drive boost input. Connect at 1 BS – least 10nF capacitor from LX to BS to control the High-Side switch. Place the capacitor close to this pin if possible. 2 IN P Power Input. Drive IN with a 4.5V to 18V power source to activate the converter. Power Switching Output. LX is the switching node that supplies power to the output. Power ground. Feedback Input. FB monitors the output voltage to regulate that 3 4 LX GND O P 5 FB I v [ … ]

VP2128 PDF File

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