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NCP3155B - 3A Synchronous Buck Regulator

Download the NCP3155B datasheet PDF. This datasheet also covers the NCP3155A variant, as both devices belong to the same 3a synchronous buck regulator family and are provided as variant models within a single manufacturer datasheet.

Description

large copper area to reduce thermal resistance.

The VIN pin powers the internal control circuitry and is monitored by an undervoltage comparator.

Features

  • Input Voltage Range from 4.7 V to 24 V.
  • Adjustable Output Voltage.
  • 1 MHz Operation (NCP3155A.
  • 500 kHz).
  • Internally Programmed 1.2 ms Soft.
  • Start (NCP3155A.
  • 2.4 ms).
  • 0.8 ± 1.0% Reference Voltage.
  • 48 mW HS.
  • FET and 18 mW LS.
  • FET.
  • Current Limit Protection.
  • Transconductance Amplifier with External Compensation.
  • Input Undervoltage Lockout.
  • Output Overvoltage and Undervolta.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (NCP3155A-ONSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number NCP3155B
Manufacturer onsemi
File Size 506.22 KB
Description 3A Synchronous Buck Regulator
Datasheet download datasheet NCP3155B Datasheet

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Full PDF Text Transcription

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NCP3155A, NCP3155B 3 A Synchronous Buck Regulator The NCP3155 is a DC/DC synchronous switching regulator with fully integrated power switches and full fault protection. The switching frequency of 1 MHz and 500 kHz allows the use of small filter components, which results in smaller board space and reduced BOM cost. Available in a SOIC-8 package. Features • Input Voltage Range from 4.7 V to 24 V • Adjustable Output Voltage • 1 MHz Operation (NCP3155A – 500 kHz) • Internally Programmed 1.2 ms Soft−Start (NCP3155A – 2.4 ms) • 0.8 ± 1.
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