Технические характеристики
NCP380HMUAJAATBG is a single-channel high-side P-channel power distribution load switch with adjustable current limit, manufactured by onsemi, designed for circuit power gating, capacitive load startup and short-circuit protection.
Suffix Explanation
- NCP380HMUAJAATBG: Full orderable part number of adjustable current-limit version
- Standard packing is tape-and-reel with 3000 pieces per reel; cut tape and custom reel options are available
1. Core Electrical Specifications
Диапазон входного напряжения
- Operating input voltage: 2.5 V ~ 5.5 V
- Built-in UVLO under-voltage lockout to avoid abnormal startup under insufficient input voltage
Switching Performance
- Integrated P-channel power MOSFET with typical Rds(on) 55 mΩ, maximum 110 mΩ
- Maximum sustainable output current: 2.1 A
- Current limit threshold can be flexibly set from 100 mA to 2.1 A via an external programming resistor
- Internal soft-start circuit suppresses inrush current when powering on large capacitive loads to reduce system voltage dip
- Enable pin adopts active-high logic for simple on-off control from MCU GPIO
2. Integrated Multi-Dimensional Protection Mechanisms
- Constant current limiting mode activates once load current exceeds preset threshold to prevent overcurrent damage
- Short-circuit protection to clamp output current under output short condition
- Thermal shutdown protection cuts off the power path when die overtemperature, with automatic recovery after cooling
- Reverse voltage protection disables the switch if output voltage is higher than input voltage to protect upstream power supply
- Open-drain fault flag pin pulls low to report overcurrent, overtemperature and reverse voltage faults to main controller
3. Package & Mechanical Information
- Package type: 6-pin UDFN surface mount package with exposed thermal pad
- Outline dimension: 2.0 mm × 2.0 mm × 0.5 mm ultra-miniature form factor
- Moisture Sensitivity Level: MSL 1, no time limit requirement for reflow soldering after package opening
- Exposed pad optimizes thermal dissipation for continuous high-current operation
4. Environmental & Compliance Standards
- Operating ambient temperature range: -40 ℃ ~ +85 ℃
- Fully lead-free, RoHS and REACH compliant without restricted hazardous substances
- Stable performance against common electromagnetic interference in embedded and portable devices
5. Typical Application Scenarios
Power domain switching and peripheral power management on single-board computers and embedded mainboards USB port power supply protection for laptops, tablets and portable consumer electronics Sensor module, camera module and wireless communication module power gating in IoT terminals Battery-powered handheld test instruments and industrial portable detection equipment Smart home control panels, wearable devices and low-voltage circuit anti-short protection circuits
LXB Semicon supplies original onsemi NCP380HMUAJAATBG adjustable current-limit high-side load switch IC
