Overview
The NCP81038MNTWG is a dual synchronous buck controller produced by ON Semiconductor. It is designed to convert battery or adapter voltage into multiple power rails, making it suitable for desktop and notebook systems. The controller features two buck switching controllers with fixed output voltages of 5.0 V on channel 2 and 3.3 V on channel 1, along with two on-board LDOs (Low Dropout Regulators) providing additional outputs of 5 V / 60 mA and 3.3 V or 12 V / 10 mA. This component is optimized for high efficiency and fast transient response, and it includes power good signals for system monitoring.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | NCP81038MNTWG |
| Manufacturer | ON Semiconductor |
| Package Type | QFN-28 |
| Supply Voltage Range | 5.5 V to 28 V |
| Output Voltages | Channel 1: 3.3 V, Channel 2: 5.0 V |
| LDO Outputs | 5 V / 60 mA, 3.3 V or 12 V / 10 mA |
| Switching Frequency | Typical: Not specified (adaptive-ripple control) |
| Efficiency | High efficiency with adaptive-ripple control |
| Operating Temperature | Not specified in provided sources |
| Moisture Sensitivity Level (MSL) | 1 |
| Container Type | REEL |
| Container Quantity | 4000 |
Key Features
- Dual Synchronous Buck Controllers: Optimized for converting battery or adapter voltage into multiple power rails.
- Fixed Output Voltages: Channel 1: 3.3 V, Channel 2: 5.0 V.
- On-board LDOs: Providing additional outputs of 5 V / 60 mA and 3.3 V or 12 V / 10 mA.
- High Efficiency: Achieved through ON Semiconductor's proprietary adaptive-ripple control, enabling seamless transition from Continuous Conduction Mode (CCM) to Discontinuous Conduction Mode (DCM) for higher efficiency at light loads.
- Fast Transient Response: Ensures stable output voltages during load changes.
- Power Good Signals: For system monitoring and status indication.
Applications
The NCP81038MNTWG is primarily used in desktop and notebook systems where multiple power rails are required. It is suitable for any application needing efficient and reliable DC-DC power conversion, such as:
- Desktop computers
- Notebook computers
- Other electronic devices requiring multiple voltage rails
Q & A
- What is the NCP81038MNTWG?
The NCP81038MNTWG is a dual synchronous buck controller produced by ON Semiconductor.
- What are the fixed output voltages of the NCP81038MNTWG?
The fixed output voltages are 3.3 V on channel 1 and 5.0 V on channel 2.
- What additional outputs are provided by the on-board LDOs?
The on-board LDOs provide outputs of 5 V / 60 mA and 3.3 V or 12 V / 10 mA.
- What is the supply voltage range for the NCP81038MNTWG?
The supply voltage range is from 5.5 V to 28 V.
- How does the adaptive-ripple control feature work?
The adaptive-ripple control enables seamless transition from CCM to DCM, allowing the converter to run at a reduced switching frequency with higher efficiency at light loads.
- What package type is the NCP81038MNTWG available in?
The NCP81038MNTWG is available in a QFN-28 package.
- What is the moisture sensitivity level (MSL) of the NCP81038MNTWG?
The MSL is 1.
- What are the typical applications of the NCP81038MNTWG?
The typical applications include desktop and notebook systems.
- Does the NCP81038MNTWG provide power good signals?
Yes, it provides power good signals for system monitoring.
- How many units are in a standard reel container?
A standard reel container contains 4000 units.
