Overview
The IR3847MTRPBF is a highly integrated, single-input voltage, synchronous buck regulator produced by Infineon Technologies. This regulator is designed to provide high efficiency and flexibility in power management solutions. It features a wide input voltage range, precise output voltage control, and advanced protection mechanisms, making it suitable for a variety of applications.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 1.5V to 21V (with external Vcc) |
| Output Voltage Range | 0.6V to 0.86*PVin |
| Output Current | Up to 25A |
| Switching Frequency | Programmable up to 1.5MHz using Rt/Sync pin or PMBus |
| Reference Voltage Accuracy | 0.5% |
| Package Type | 33QFN |
| Operating Junction Temperature | -40°C to 125°C |
| PMBus Interface | Fast mode I2C and 400 kHz PMBus interface |
| Soft-Start and Pre-Bias Start-up | Internal Soft-Start with Pre-Bias Start-up |
Key Features
- Internal LDO allows single 21V operation
- Programmable switching frequency up to 1.5MHz using Rt/Sync pin or PMBus
- Internal Soft-Start with Pre-Bias Start-up
- Enable input with Voltage Monitoring Capability
- Remote Sense Amplifier with True Differential Voltage Sensing
- Fast mode I2C and 400 kHz PMBus interface
- Sequencing and tracking capable
- Selectable analog mode or digital mode
- 66 PMBus commands for configuration, control, fault protection, and telemetry
- Thermally compensated current limit with configurable overcurrent responses
- Optional light load efficiency mode
- External synchronization with Smooth Clocking
- Dedicated output voltage sensing protection which remains active even when Enable is low
- Integrated MOSFETs and Bootstrap diode
Applications
- DC-DC Converters
- Desktop and Workstations
- Graphic Boards
- Netcom and Telecom
- Point of Load
- Servers and Storage
Q & A
- What is the input voltage range of the IR3847MTRPBF?
The input voltage range is from 1.5V to 21V with external Vcc. - What is the maximum output current of the IR3847MTRPBF?
The maximum output current is up to 25A. - What is the switching frequency range of the IR3847MTRPBF?
The switching frequency is programmable up to 1.5MHz using Rt/Sync pin or PMBus. - Does the IR3847MTRPBF support PMBus interface?
Yes, it supports Fast mode I2C and 400 kHz PMBus interface. - What is the operating junction temperature range of the IR3847MTRPBF?
The operating junction temperature range is -40°C to 125°C. - Does the IR3847MTRPBF have internal soft-start and pre-bias start-up capabilities?
Yes, it has internal Soft-Start with Pre-Bias Start-up. - What package type is the IR3847MTRPBF available in?
The IR3847MTRPBF is available in a 33QFN package. - Does the IR3847MTRPBF support remote sense amplifier with true differential voltage sensing?
Yes, it supports Remote Sense Amplifier with True Differential Voltage Sensing. - Can the IR3847MTRPBF be used in sequencing and tracking applications?
Yes, it is sequencing and tracking capable. - What are some potential applications of the IR3847MTRPBF?
Potential applications include DC-DC converters, desktop and workstations, graphic boards, netcom and telecom, point of load, and servers and storage.
