ChipApex | Global Electronic Components Supplier
NCP81270CMNTXG
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：NCP81270CMNTXG
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：-
- Function：-
- Output Configuration：Positive
- Topology：-
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：4.5V ~ 21V
- Frequency - Switching：600kHz
- Duty Cycle (Max)：-
- Synchronous Rectifier：No
- Clock Sync：No
- Serial Interfaces：-
- Control Features：-
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：20-VFQFN Exposed Pad
- Supplier Device Package：20-QFN (4x4)
- Grade：-
- Qualification：-
Download product information
Overview
The NCP81270CMNTXG is a single-phase synchronous buck switching voltage regulator manufactured by onsemi. It operates within an input voltage range of 4.5V to 21V and supports a typical switching frequency of 600kHz. The device is housed in a 20-QFN (4x4) package with exposed pad for thermal performance. Designed for high-efficiency power conversion, it features integrated drivers suitable for external MOSFETs. The component is RoHS compliant and classified under PMIC DC DC Switching Controllers.
Feature Summary
- Single-phase synchronous buck topology for efficient step-down regulation
- Integrated gate drivers for external MOSFET control
- Wide input voltage capability supporting various system rails
Applications
- Computer motherboard CPU core voltage regulation
- GPU power delivery systems
- Server and workstation mainboard power stages
Procurement Notes
Verify the specific suffix CMNTXG against the official datasheet to confirm pinout and electrical characteristics match the design requirements. Ensure compatibility with the target PCB footprint, specifically the 20-QFN 4x4mm outline. Confirm that the supply chain source provides genuine onsemi products to avoid counterfeit components affecting reliability.
Selection Notes
Select this component when a single-phase solution is sufficient for the load current requirements. Compare against multi-phase alternatives if higher current density or reduced output ripple is necessary. Consider the 600kHz switching frequency impact on passive component sizing versus lower frequency options. Evaluate thermal dissipation capabilities of the QFN package relative to the expected ambient temperature and board copper area.
Part Context
This part belongs to the NCP81270 series, which includes variants like NCP81270DMNTXG. These controllers are optimized for computer applications requiring stable voltage regulation for processors. The series shares common architectural features but may differ in specific timing parameters or driver strengths.
Replacement Considerations
Check for direct pin-to-pin compatible upgrades within the NCP81270 family. Verify if newer revisions offer improved efficiency or thermal performance. Ensure any substitute maintains the same 20-QFN package dimensions and electrical specifications.
