Product Details
Key Features
Applications/Uses
Simplified Block Diagram
Technical Docs
Data Sheet | Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change | Nov 15, 2002 |
Support & Training
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Sampling:
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Key Features
- ±0.75% Output Voltage Accuracy
- Instant Load-Transient Response
- Up to 90% Efficiency Eliminates Heatsinks
- Up to 60A Output Current
- 8V to 24V Input Range
- User-Programmable Voltage Positioning
- Controlled VID Voltage Transition
- 500kHz Effective Switching Frequency
- MAX1937: AMD Hammer Compatible
- MAX1938: Intel VRM 9.0/9.1 Compatible
- MAX1939: AMD Athlon Mobile Compatible
- Soft-Start
- Power-Good (PWRGD) Output
- Cycle-by-Cycle Current Limit
- Output Overvoltage Protection (OVP)
- RDS(ON) or RSENSE Current Sensing
- Remote Voltage Sensing
- 28-Pin QSOP Package
Applications/Uses
- Blade Servers
- High-End Switches and Routers
- High-End Switches and Routers
- Macro Base Stations
- Notebook and Desktop Computers
- Servers and Workstations
Description
The MAX1937/MAX1938/MAX1939 are compliant with AMD Hammer, Intel®‚ Voltage-Regulator Module (VRM) 9.0/9.1, and AMD Athlon Mobile VID code specifications (see Table 1 for VID codes). The internal DAC provides ultra-high accuracy of ±0.75%. A controlled VID voltage transition is implemented to minimize both undervoltage and overvoltage overshoot during VID input change.
Remote sensing is available for high output-voltage accuracy. The MOSFET switches are driven by a 6V gate-drive circuit to minimize switching and crossover conduction losses to achieve efficiency as high as 90%. The MAX1937/MAX1938/MAX1939 feature cycle-by-cycle current limit to ensure that the current limit is not exceeded. Crowbar protection is available to protect against output overvoltage.
Technical Docs
Data Sheet | Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change | Nov 15, 2002 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.