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uP1542 - 5V/12V Synchronous-Rectified Buck Controller

General Description

The uP1542 is a compact synchronous-rectified buck controller specifically designed to operate from 5V or 12V supply voltage and to deliver high quality output voltage as low as 0.6V for uP1542S/U (linear OCP).

Key Features

  • include internal soft start, over/under voltage protection, over current protection and shutdown function. With aforementioned functions, this part provides customers a compact, high efficiency, well-protected and cost-effective solutions. This part is available in PSOP8L and WDFN2x2-8L package. Pin Configuration BOOT UG OCS LG 1 8 297 3 GND 6 4 5 PH COMP/EN FB VCC PSOP-8L (uP1542S) BOOT UG GND LG 1 8 297 3 GND 6 4 5 PH COMP/EN FB VCC PSOP-8L (uP1542Q/T/V) Features Operates from.

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Datasheet Details

Part number uP1542
Manufacturer uPI Semiconductor
File Size 273.83 KB
Description 5V/12V Synchronous-Rectified Buck Controller
Datasheet download datasheet uP1542 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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uP1542 5V/12V Synchronous-Rectified Buck Controller General Description The uP1542 is a compact synchronous-rectified buck controller specifically designed to operate from 5V or 12V supply voltage and to deliver high quality output voltage as low as 0.6V for uP1542S/U (linear OCP). The uP1542 adopts constant frequency, voltage mode control scheme, featuring easy-to-use, low external component count, and fast transient response. Fixed 300kHz operation provides an optimal level of integration to reduce size and cost of the power supply. This controller integrates internal MOSFET drivers that support 12V+12V bootstrapped voltage for high efficiency power conversion. The bootstrap diode is built-in to simplify the circuit design and minimize external part count.