Overview
The LTM4700IY#PBF is a high-performance dual 50A or single 100A step-down µModule (power module) DC/DC regulator manufactured by Analog Devices. This device features remote configurability and telemetry-monitoring of power management parameters over PMBus, an open standard I²C-based digital interface protocol. It integrates fast analog control loops, precision mixed-signal circuitry, EEPROM, power MOSFETs, inductors, and supporting components into a single package, making it a complete power solution in a compact form factor.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Voltage Range | 4.5 | 16 | V | |
| Output Voltage Range | 0.5 | 1.8 | V | |
| Output Current (per channel) | 50 | A | ||
| Maximum Output Current (combined) | 100 | A | ||
| DC Output Error | ±0.5% | |||
| Current Readback Accuracy | ±3% | |||
| Switching Frequency | 350 | kHz | ||
| Operating Temperature Range | -40 | 125 | °C | |
| Package Type | 330-Lead BGA |
Key Features
- Dual 50A or single 100A adjustable outputs with a digital interface for control and monitoring.
- Wide input voltage range: 4.5V to 16V.
- High efficiency: up to ~90% full load efficiency.
- Precise output regulation: ±0.5% maximum DC output error and ±3% current readback accuracy.
- Advanced communication interfaces: 400kHz PMBus-compliant I²C serial interface for seamless integration with other devices.
- Integrated input current sense amplifier and 16-bit ΔΣ ADC.
- Parallel and current share multiple modules, digital soft-start/stop ramp.
- Remote configurability and telemetry-monitoring of power management parameters.
Applications
The LTM4700IY#PBF is designed for demanding applications such as:
- Telecom systems.
- Datacom systems.
- Storage systems.
- System optimization, characterization, and data mining in prototype, production, and field environments.
Q & A
- What is the LTM4700IY#PBF?
The LTM4700IY#PBF is a dual 50A or single 100A step-down µModule DC/DC regulator with remote configurability and telemetry-monitoring of power management parameters over PMBus.
- What is the input voltage range of the LTM4700IY#PBF?
The input voltage range is from 4.5V to 16V.
- What are the output current capabilities of the LTM4700IY#PBF?
The device can supply up to 50A per channel or a combined 100A.
- What is the switching frequency of the LTM4700IY#PBF?
The switching frequency is 350kHz.
- What is the operating temperature range of the LTM4700IY#PBF?
The operating temperature range is -40°C to 125°C.
- What package type does the LTM4700IY#PBF use?
The package type is a 330-Lead BGA (Ball Grid Array).
- What communication interface does the LTM4700IY#PBF support?
The device supports a 400kHz PMBus-compliant I²C serial interface.
- What are some key applications of the LTM4700IY#PBF?
Key applications include telecom, datacom, and storage systems, as well as system optimization and characterization in various environments.
- How accurate is the output voltage regulation of the LTM4700IY#PBF?
The device has a maximum DC output error of ±0.5% and a current readback accuracy of ±3%.
- Can the LTM4700IY#PBF be used in parallel or current-sharing configurations?
Yes, the device supports parallel and current-sharing multiple modules with digital soft-start/stop ramp.
