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NCP3063BDR2G

ONNCP3063BDR2G

onsemi
Buck, Boost Switching Regulator IC Positive or Negative Adjustable 1.25V 1 Output 1.5A (Switch) 8-SOIC (0.154", 3.90mm Width)
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Overview

The NCP3063BDR2G is a versatile 1.5A switching regulator designed for buck, boost, and inverting power conversion topologies. It supports a wide input voltage range up to 40V and operates with a high-frequency internal oscillator to minimize external component sizes.

Why Choose This Part

This regulator features cycle-by-cycle current limiting and internal thermal shutdown with hysteresis for enhanced system reliability. Its ability to support boost and inverting configurations from a single IC makes it an excellent choice for flexible power management designs.

Applications

DC-DC Step-Down Converters
Efficiently reducing high voltage industrial rails to lower logic-level voltages for microcontrollers and peripherals.
Battery Powered Equipment
Generating stable positive or negative output rails from varying battery voltages in portable instruments.
Negative Voltage Generation
Configuring the device in an inverting topology to provide bipolar rails for precision analog operational amplifiers.

Key Specifications

Function Step-Up, Step-Down
Topology Buck, Boost
Output Type Adjustable
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Current - Output 1.5A (Switch)
Number of Outputs 1
Output Configuration Positive or Negative
Frequency - Switching 150kHz
Operating Temperature -40degC ~ 125degC (TJ)
Synchronous Rectifier No
Voltage - Input (Max) 40V
Voltage - Input (Min) 3V
Voltage - Output (Max) 40V (Switch)
Supplier Device Package 8-SOIC
Voltage - Output (Min/Fixed) 1.25V

Getting Started

Designers should select the timing capacitor (CT) to set the switching frequency and use a low ESR output capacitor for reduced ripple. Refer to the manufacturer's evaluation board documentation for recommended PCB layout techniques to manage thermal dissipation and high-frequency switching noise.

Also Consider

MC34063A ONonsemi - A classic, lower-cost alternative for applications that do not require the higher switching frequency or thermal shutdown features of the NCP3063.
LM2576 TITexas Instruments - Offers a higher 3A output current capability for more demanding power requirements, though in a larger package.

Categories

Power Management > Switching Regulators