Description:1.8 V to 5.5 V Operating Input Voltage Range; Several Fixed Output Voltage Options and others available upon request in range from 1.2 V to 3.9 V; Low Quiescent Current of Typ. 90 µA; Very Low Dropout: 100 mV Typ. at Iout = 1 A (3.0V version); High 75 dB at 1 kHz PSRR; Internal Soft-Start; ±1.0% Accuracy in -40 to 85degC temperature range; Thermal Shutdown and Current Limit Protections; Stable with Small 1 µF Ceramic Capacitors
A good PCB layout for optimal thermal performance involves placing the device near a thermal pad or a heat sink, and ensuring good thermal conductivity between the device and the PCB. A 2-layer or 4-layer PCB with a solid ground plane is recommended. Avoid placing thermal vias under the device, and keep the thermal pad clear of any obstacles.
To ensure reliable start-up and shutdown, ensure that the input voltage rises and falls monotonically, and that the input voltage is within the recommended operating range. Also, ensure that the output capacitor is properly sized and placed close to the device to minimize inrush current and voltage overshoot.
The recommended input capacitor value is 10uF to 22uF, with an X5R or X7R dielectric. The capacitor should be placed as close to the device as possible, and should have a voltage rating of at least 25V.
The NCP186AMX300TAG has built-in overcurrent protection and short-circuit protection. However, it's recommended to add external protection components such as fuses or PTC thermistors to provide additional protection. Also, ensure that the output capacitor is properly sized to handle inrush current and voltage overshoot.
The recommended output capacitor value is 10uF to 47uF, with an X5R or X7R dielectric. The capacitor should be placed as close to the device as possible, and should have a voltage rating of at least 2x the output voltage.
Trust Checks
This model has been built in collaboration with the manufacturer.
Manufacturer Collaborated
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
NCP186AMX300TAG Overview
Use the download button to access the NCP186AMX300TAG schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like NCP18,
or try a keyword search, such as Linear Regulator ICs
