Overview
The NCP1595AMNTWG is a synchronous PWM controller from ON Semiconductor, designed for high-efficiency buck conversion applications. This IC integrates all the necessary control and protection circuitry to satisfy a wide range of power management needs. It employs current mode control to provide fast transient response, simple compensation, and excellent stability. The device features a precision reference, a fixed 1 MHz switching frequency, and integrated high-side P-channel and low-side N-channel MOSFETs, making it suitable for various power supply requirements.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | ON Semiconductor | |
| Type of Integrated Circuit | PMIC (Power Management IC) | |
| Input Voltage Range | 4.0 V to 5.5 V | V |
| Output Current | 1.5 A | A |
| Switching Frequency | 1 MHz (±13% variation) | Hz |
| Output Voltage Range | Adjustable down to 0.8 V | V |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | 6-TDFN Exposed Pad | |
| Mounting Style | SMD/SMT | |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- Fixed 1 MHz switching frequency with ±13% variation
- Integrated high-side P-channel and low-side N-channel MOSFETs with low RDS(on)
- Current mode control for fast transient response and excellent stability
- Internal soft-start to limit startup inrush current
- Cycle-by-cycle current limiting and hiccup mode short-circuit protection
- Thermal shutdown and overtemperature protection
- Diode emulation during light load (disabled for NCP1595C)
- Very low shutdown current (3 μA maximum)
- Precision reference voltage allowing output voltages as low as 0.8 V
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 NCP1595AMNTWG? The input voltage range is from 4.0 V to 5.5 V.
- What is the maximum output current of the NCP1595AMNTWG? The maximum output current is 1.5 A.
- What is the switching frequency of the NCP1595AMNTWG? The switching frequency is fixed at 1 MHz with ±13% variation.
- What is the minimum output voltage that can be achieved with the NCP1595AMNTWG? The output voltage can be adjusted down to 0.8 V.
- What type of protection features does the NCP1595AMNTWG include? It includes cycle-by-cycle current limiting, hiccup mode short-circuit protection, thermal shutdown, and overtemperature protection.
- What is the operating temperature range of the NCP1595AMNTWG? The operating temperature range is from -40°C to +125°C.
- What is the package type of the NCP1595AMNTWG? The package type is 6-TDFN Exposed Pad.
- Is the NCP1595AMNTWG lead-free and RoHS compliant? Yes, it is lead-free and RoHS compliant.
- What is the purpose of the internal soft-start feature in the NCP1595AMNTWG? The internal soft-start feature is used to limit the startup inrush current.
- What are some common applications of the NCP1595AMNTWG? Common applications include DSP power, hard disk drivers, computer peripherals, home audio, set-top boxes, networking equipment, LCD TV, and USB power devices.
