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NCP81233MNTXG
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Product Detailed Parameters
- Description：IC REG CNTRL BCK/BST I2C 52QFN
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：PWM Signal
- Function：Step-Up, Step-Down
- Output Configuration：Positive
- Topology：Buck, Boost
- Number of Outputs：1
- Output Phases：6
- Voltage - Supply (Vcc/Vdd)：4.5V ~ 20V
- Frequency - Switching：200kHz ~ 1.2MHz
- Duty Cycle (Max)：-
- Synchronous Rectifier：-
- Clock Sync：Yes
- Serial Interfaces：I2C
- Control Features：Current Limit, Enable, Frequency Control, On Time Control, Ramp, Soft Start
- Operating Temperature：-40°C ~ 100°C (TA)
- Mounting Type：Surface Mount
- Package / Case：52-VFQFN Exposed Pad
- Supplier Device Package：52-QFN (6x6)
- Grade：-
- Qualification：-
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Overview
The NCP81233MNTXG is a synchronous buck switching controller manufactured by onsemi, designed for high-performance power management applications. It operates within an input voltage range of 4.5V to 28V and supports a switching frequency between 150kHz and 1.2MHz. The device features a 32-pin QFN package (5x5mm) with exposed pad, suitable for surface mount installation. It provides a single positive output configured as a step-down regulator with integrated current limiting and enable control functions.
Feature Summary
- Supports I2C configuration interface for flexible system integration
- Integrated synchronous rectification for improved efficiency
- Capable of operating at variable switching frequencies up to 1.2MHz
Applications
- USB-PD compliant power delivery systems
- Multi-phase CPU core voltage regulation
- Industrial point-of-load converters
Procurement Notes
Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status via official datasheets. Ensure storage conditions meet moisture sensitivity level requirements prior to assembly. Cross-reference ordering suffixes to verify specific tape-and-reel packaging configurations.
Selection Notes
Evaluate thermal performance requirements against the 32-QFN package limitations. Verify I2C bus compatibility with host controllers. Assess inductor selection based on the adjustable switching frequency range. Consider input voltage stability within the specified 4.5V to 28V operational window.
Part Context
This component belongs to the NCP812xx series of power management ICs from onsemi. The series focuses on efficient DC-DC conversion solutions for computing and industrial electronics. The NCP81233 variant specifically targets applications requiring programmable parameters via digital interfaces.
Replacement Considerations
NCP81231MNTXG: Similar buck controller with I2C interface but different pinout or feature set. NCP81232MNTXG: Dual-channel alternative for multi-phase applications. Verify electrical specifications and package dimensions before substitution.
