CMPWR280TN

Description：IC REG LINEAR 3.3V 1.5A TO263-5
Series：SmartOR™
Mfr：onsemi
Package：Tape & Reel (TR)

SKU:cb112fffb3ae Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: onsemi

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Product introduction

CMPWR280TN is listed in the Voltage Regulators - Linear, Low Drop Out (LDO) Regulators range at ChipApex. The manufacturer field lists onsemi. Its product description is IC REG LINEAR 3.3V 1.5A TO263-5. Review the specifications below when checking this part for your BOM.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators specifications for CMPWR280TN

Description：IC REG LINEAR 3.3V 1.5A TO263-5
Series：SmartOR™
Mfr：onsemi
Package：Tape & Reel (TR)
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：5.25V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
Voltage Dropout (Max)：-
Current - Output：1.5A
Current - Quiescent (Iq)：200 µA
Current - Supply (Max)：3 mA
PSRR：-
Control Features：-
Protection Features：Over Current, Over Temperature, Short Circuit
Operating Temperature：0°C ~ 70°C
Mounting Type：Surface Mount
Package / Case：TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Supplier Device Package：TO-263-5
Grade：-
Qualification：-

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators datasheet and documents for CMPWR280TN

CMPWR280TN

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The CMPWR280TN is a dual-input low-dropout CMOS regulator manufactured by California Micro Devices, now part of onsemi. It provides a fixed 3.3V output with automatic selection among three inputs: VCC (1.5A), VSBY (375mA), and VAUX via an external P-channel MOSFET switch. The device features glitch-free transitions, built-in hysteresis for supply selection, foldback current limiting, and thermal shutdown. It operates within a 4.75V to 5.25V input range and is housed in a standard 5-lead TO-263 package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

Automatic priority-based selection among VCC, VSBY, and auxiliary VAUX inputs
Glitch-free 3.3V output during power supply transitions
Integrated drive control signal for external P-channel MOSFET switching
Built-in protection against output shorts, current overload, and thermal events

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

Peripheral Component Interface (PCI) Adapter Cards
Network Interface Cards (NICs)
Multiple Powered Systems
Systems with Standby Capabilities

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the manufacturer origin, as the component was originally produced by California Micro Devices before acquisition by onsemi. Confirm the specific package variant corresponds to the standard TO-280TO form factor associated with the TN suffix. Ensure compatibility with required thermal dissipation layouts for the TO-263 package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component for applications requiring seamless switchover between primary and standby power sources without output interruption. It is suitable for systems needing a dedicated auxiliary drive signal to manage external power switches. Consider thermal management requirements due to internal power dissipation limits under heavy load conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This component belongs to the SmartOR family of dual-input regulators designed for high-reliability power distribution. It integrates complex control logic to manage multiple voltage rails while maintaining system uptime. The technology supports both standard and lead-free finishing options within the TO-263 package family.