Overview
The LTM4675IY#PBF is a dual 9A or single 18A step-down µModule (micromodule) DC/DC regulator produced by Analog Devices Inc. This device is designed with remote configurability and telemetry-monitoring of power management parameters over PMBus, an open standard I²C-based digital interface protocol. It features fast analog control loops, precision mixed-signal circuitry, EEPROM, power MOSFETs, inductors, and supporting components. The LTM4675IY#PBF is packaged in a 16mm × 11.9mm × 3.51mm BGA package, available with SnPb or RoHS compliant terminal finish.
Key Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Package | 108-Pin BGA |
| Input Voltage Range | 4.5V to 17V |
| Output Voltage Range | 0.5V to 5.5V |
| Maximum Output Current | Dual 9A or Single 18A |
| Switching Frequency | Up to 1 MHz |
| Turn-on Time | 40ms |
| DC Output Error Over Temperature | ±0.5% |
| Current Readback Accuracy | ±2.5% at 9A Load |
| Operating Temperature Range | -40°C to +125°C |
| Moisture Sensitivity Level | 4 |
| RoHS Compliance | Yes |
Key Features
- Remote configurability and telemetry-monitoring of power management parameters over PMBus
- Fast analog control loops and precision mixed-signal circuitry
- Integrated 16-bit ∆Σ ADC
- Supports telemetry polling rates up to 125Hz
- Constant frequency current mode control
- Parallel and current share multiple modules
- All 7-bit slave addresses supported
- Drop-in pin-compatible to dual 13A LTM4676A and dual 18A LTM4677
- Outputs can be margined, tuned, and ramped up and down at programmable slew rates with sequencing delay times
Applications
- Dual, fast, analog loops with digital interface for control and monitoring
- System optimization in prototype and production environments
- Power sequencing and synchronization
- High-current, high-density power supply solutions
- Telecom and datacom equipment
- Industrial and medical devices requiring precise power management
Q & A
- What is the input voltage range of the LTM4675IY#PBF?
The input voltage range is from 4.5V to 17V.
- What are the output voltage and current capabilities of the LTM4675IY#PBF?
The device can output 0.5V to 5.5V with a maximum current of 9A per channel or 18A in a single-channel configuration.
- What is the switching frequency of the LTM4675IY#PBF?
The switching frequency can be up to 1 MHz.
- Does the LTM4675IY#PBF support remote configuration and monitoring?
Yes, it supports remote configurability and telemetry-monitoring over PMBus.
- What is the turn-on time of the LTM4675IY#PBF?
The turn-on time is 40ms.
- Is the LTM4675IY#PBF RoHS compliant?
Yes, the device is RoHS compliant.
- What is the operating temperature range of the LTM4675IY#PBF?
The operating temperature range is from -40°C to +125°C.
- Can the LTM4675IY#PBF be used in parallel or current share configurations?
Yes, it supports parallel and current share multiple modules.
- What type of package does the LTM4675IY#PBF come in?
The device is packaged in a 108-Pin BGA package.
- Are there any development kits available for the LTM4675IY#PBF?
Yes, development kits such as DC2053A and DC2204B are available.
