LTM4639 overview
LTM4639 is a component documented by Linear Technology. The PDF description identifies it as "Ultrathin, Triple Output, Step-Down 關Module Regulator for DDR-QDR4 Memory." This guide condenses the most useful engineering information from the available PDF so that designers and sourcing teams can identify the checks that still need confirmation in the original document.
Datasheet snapshot
- Manufacturer: Linear Technology
- Part number: LTM4639
- Category: Power Management
- Datasheet length: 28 Pages
Applications listed in the PDF
- Consult Marketing for parts specified with wider operating temperature ranges. *Device temperature grade is indicated by a label on the shipping container . Pad or ball finish cod.
Specifications and operating details
The following points were extracted from the PDF text. Check the associated conditions, notes and limits in the complete document before using a value in a design.
- Operating from a 3.6V to 15V input voltage, the LTM4632 supports two ±3A output rails, both sink and source capable, for VDDQ and VTT , plus a 10mA low noise reference VTTR output.
- Housed in a 6.25mm × 6.25mm × 1.82mm LGA and 6.25mm × 6.25mm × 2.42mm BGA packages, the LTM4632 includes the switching controller , power FETs, inductors and sup- port components.
- Alternatively, the power module can also be configured as a two phase single ± 6A output VTT .
- Its high switching frequency and current mode control enable a very fast transient response to line and load changes without sacrificing stability.
- Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime.
- The LTM4632E is guaranteed to meet performance specifications over the 0°C to 125°C internal operating temperature range.
- Specifications over the –40°C to 125°C internal operating temperature range are assured by design, characterization and correlation with statistical process controls.
Topics covered by the datasheet
The document includes sections related to:
- APPLICATIONS
- ELECTRICAL CHARACTERISTICS
- REVISION HISTORY
Engineering review checklist
- Verify capacitance tolerance, rated voltage, temperature range and any DC-bias derating.
- Check ESR, ripple-current capability, lifetime and polarity requirements under worst-case conditions.
- Confirm package dimensions, land pattern and reflow or mounting limits for the selected ordering code.
Always confirm values against the latest manufacturer-controlled datasheet, especially when qualifying a substitute or releasing a production BOM.
View the complete PDF and model record
Open the LTM4639 datasheet and model details to review the complete PDF, document pages and available product information.
Source attribution
Adapted from the PDF associated with this DigiCamel model page.
Source model URL: https://www.digicamel.com/product.php?slug=ltm4639-linear-technology