Overview
The LTM4632IY#PBF is an ultrathin triple output step-down µModule (power module) regulator produced by Analog Devices Inc. This regulator is designed to provide a complete power solution for DDR-QDR4 SRAM memory. It operates from a wide input DC voltage range of 3.6V to 15V and supports two ±3A output rails, both sink and source capable, for VDDQ and VTT, along with a 10mA low noise reference VTTR output. The module includes the switching controller, power FETs, inductors, and support components, making it a comprehensive solution for various power supply needs.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Input Voltage Range | 3.6V to 15V | V |
| Output Voltage Range | 0.6V to 2.5V | V |
| Output Current (VDDQ, VTT) | ±3A | A |
| Reference Output Current (VTTR) | 10mA | mA |
| Switching Frequency | 1MHz | Hz |
| Package Type | 25-lead BGA | - |
| Package Dimensions | 6.25mm × 6.25mm × 2.42mm | mm |
| Operating Temperature Range | -40°C to 125°C | °C |
| Total Output Voltage Regulation Error | ±1.5% | % |
Key Features
- Complete DDR-QDR4 SRAM power solution including VDDQ, VTT, and VTTR (or VREF).
- Ultrathin design in a 0.5cm² (dual-sided PCB) footprint.
- High switching frequency and current mode control for fast transient response.
- Selectable burst mode operation and output voltage tracking for supply rail sequencing.
- Multiphase parallelable with current sharing.
- Overvoltage and overtemperature protection, along with a power good indicator.
- External frequency synchronization capability.
Applications
- DDR memory power supply.
- General purpose point-of-load conversion.
- Telecom and networking equipment.
- Industrial equipment.
Q & A
- What is the input voltage range of the LTM4632IY#PBF?
The input voltage range is from 3.6V to 15V.
- What are the output currents for VDDQ and VTT?
The output currents for VDDQ and VTT are ±3A each.
- What is the reference output current for VTTR?
The reference output current for VTTR is 10mA.
- What is the switching frequency of the LTM4632IY#PBF?
The switching frequency is 1MHz.
- What is the package type and dimensions of the LTM4632IY#PBF?
The package type is a 25-lead BGA, and the dimensions are 6.25mm × 6.25mm × 2.42mm.
- What is the operating temperature range of the LTM4632IY#PBF?
The operating temperature range is -40°C to 125°C.
- Does the LTM4632IY#PBF support external frequency synchronization?
- What kind of protection features does the LTM4632IY#PBF have?
- Can the LTM4632IY#PBF be configured as a two-phase single output?
- What are some typical applications of the LTM4632IY#PBF?
