Overview
The NCP1595AMNR2G from onsemi is a synchronous PWM (Pulse Width Modulation) controller designed for high-output-current applications. It integrates a low-resistance, high-side P-channel MOSFET and a low-side N-channel MOSFET, enabling efficient and stable voltage regulation. This device employs current mode control, providing fast transient response and excellent loop stability. It is suitable for a wide range of applications requiring adjustable output voltages down to 0.8 V and input voltages from 4.0 V to 5.5 V.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 4.0 | 5.5 | V | |
| Output Voltage Range | 0.8 | V | ||
| Switching Frequency | 0.87 | 1.0 | 1.13 | MHz |
| Output Current | 1.5 | A | ||
| High-Side MOSFET ON Resistance | 140 | 200 | mΩ | |
| Low-Side MOSFET ON Resistance | 90 | 125 | mΩ | |
| Operating Temperature Range | -40 | 125 | °C | |
| Junction Temperature | -40 | 150 | °C | |
| Storage Temperature Range | -55 | 150 | °C |
Key Features
- Fixed 1 MHz switching frequency
- Internal soft-start to limit inrush currents
- Cycle-by-cycle current limiting and short-circuit protection
- Thermal shutdown protection
- Adjustable output voltage down to 0.8 V
- High-side P-channel and low-side N-channel MOSFETs integrated
- Low shutdown supply current (3 μA maximum)
- Hiccup mode short-circuit protection
- Diode emulation during light load (disabled for NCP1595C)
- Pb-free device
Applications
- DSP Power
- Hard Disk Drivers
- Computer Peripherals
- Home Audio
- Set-Top Boxes
- Networking Equipment
- LCD TV
- Wireless and DSL/Cable Modem
- USB Power Devices
Q & A
- What is the input voltage range of the NCP1595AMNR2G? The input voltage range is from 4.0 V to 5.5 V.
- What is the maximum output current of the NCP1595AMNR2G? The maximum output current is up to 1.5 A.
- What is the switching frequency of the NCP1595AMNR2G? The switching frequency is fixed at 1 MHz.
- Does the NCP1595AMNR2G have thermal protection? Yes, it includes thermal shutdown protection.
- What is the minimum output voltage that can be set for the NCP1595AMNR2G? The minimum output voltage is 0.8 V.
- What type of MOSFETs are integrated in the NCP1595AMNR2G? It integrates high-side P-channel and low-side N-channel MOSFETs.
- Does the NCP1595AMNR2G support soft-start? Yes, it includes an internal soft-start to limit inrush currents.
- What is the shutdown supply current of the NCP1595AMNR2G? The shutdown supply current is 3 μA maximum.
- Is the NCP1595AMNR2G Pb-free? Yes, it is a Pb-free device.
- What are some common applications of the NCP1595AMNR2G? Common applications include DSP power, hard disk drivers, computer peripherals, home audio, and more.
