Overview
The NCP81233MNTXG, produced by onsemi, is a multi-phase synchronous buck controller designed to provide advanced power management solutions. This controller is particularly suited for applications that utilize DrMOS (Driver-MOSFET) and supports a wide range of phase configurations, including 1-, 2-, 3-, 4-, or 6-phase operation. It also supports up to 12-phase operation with phase doublers. The device features an I2C interface for flexible programming and comprehensive protection mechanisms, making it a robust choice for various high-power applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range (Vin) | 4.5 V ~ 20 V | V |
| Output Voltage Range (Vout) | 0.6 V ~ 5.3 V | V |
| Switching Frequency Range (Fsw) | 200 kHz ~ 1.2 MHz | kHz |
| Integrated LDO Voltages | 5.35 V, 3.3 V | V |
| Programmable Vboot Voltage | 0.6 V ~ 1.23 V (10 mV/step) | V |
| DVID Slew Rate Options | 0.125 mV/us, 0.25 mV/us, 0.5 mV/us, 1 mV/us, 2 mV/us, 4 mV/us, 8 mV/us, 16 mV/us | mV/us |
| Operating Junction Temperature Range | -40°C ~ 125°C | °C |
| Thermal Shutdown Threshold | 140°C ~ 150°C | °C |
Key Features
- Selectable 1-, 2-, 3-, 4-, or 6-phase operation with support up to 12-phase operation using phase doublers.
- I2C interface with 8 programmable addresses.
- Differential voltage and current sense.
- Flexible programming options.
- Comprehensive protections including over current, over/under voltage, hiccup over temperature, and thermal shutdown.
- Integrated 5.35 V and 3.3 V LDOs.
- Programmable external reference input.
- PWM output compatible with 3.3 V and 5 V DrMOS.
- Power saving interface and power good indicator.
- Externally programmable soft start and load line.
Applications
- Telecom applications.
- Server and storage systems.
- Graphics card applications.
- Multiphase DC-DC power management.
Q & A
- What is the input voltage range of the NCP81233MNTXG?
The input voltage range is 4.5 V to 20 V.
- What are the supported phase configurations for the NCP81233MNTXG?
The device supports 1-, 2-, 3-, 4-, or 6-phase operation and up to 12-phase operation with phase doublers.
- What is the switching frequency range of the NCP81233MNTXG?
The switching frequency range is 200 kHz to 1.2 MHz.
- Does the NCP81233MNTXG have integrated LDOs?
- What are the DVID slew rate options for the NCP81233MNTXG?
The DVID slew rate options include 0.125 mV/us, 0.25 mV/us, 0.5 mV/us, 1 mV/us, 2 mV/us, 4 mV/us, 8 mV/us, and 16 mV/us.
- What protections are included in the NCP81233MNTXG?
The device includes over current, over/under voltage, hiccup over temperature, and thermal shutdown protections.
- Can the NCP81233MNTXG be programmed externally?
- What is the operating junction temperature range of the NCP81233MNTXG?
The operating junction temperature range is -40°C to 125°C.
- What are the typical applications for the NCP81233MNTXG?
Typical applications include telecom, server and storage systems, graphics cards, and multiphase DC-DC power management.
- Does the NCP81233MNTXG have a power good indicator?
