MAX34440
MAX34440
PRODUCTIONPMBus 6-Channel Power-Supply Manager
Power-Supply Manager Provides Unparalleled "Black Box" Failure Logging for Improving System Performance
- Part Models
- 2
- 1ku List Price
- Starting From $5.17
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Overview
- 6 Channels of Power-Supply Management
- Voltage Measurement/Monitoring
- Differential 12-Bit 1% Accurate ADC
- Min/Max Threshold Excursion Detection
- Supports Current Monitoring with External Current-Sense Amplifier
- Automatic Closed-Loop Margining
- Programmable Up and Down Sequencing
- Power-Good Output
- Voltage Measurement/Monitoring
- Supports Up to Eight Temperature Sensors
- Two Remote Diode Temperature Sensors
- Five Local Temperature Sensors
- One Internal Temperature Sensor
- Fault Detection on All Temp Sensors
- PMBus™-Compliant Command Interface
- I2C/SMBus-Compatible Serial Bus with Bus Timeout Function
- On-Board Nonvolatile Fault Logging and Default Configuration Setting
- No External Clocking Required
- +3.3V Supply Voltage
The MAX34440 is a complex system monitor that can manage up to six power supplies. The power-supply manager monitors the power-supply output voltage and constantly checks for user-programmable overvoltage and undervoltage thresholds. It can also margin the power-supply output voltage up or down to a user-programmable level. The margining is performed in a closed-loop arrangement whereby the device automatically adjusts a pulse-width-modulated (PWM) output and then measures the resultant output voltage. The power-supply manager can also sequence the supplies in any order at both power-up and power-down. With the addition of an external current-sense amplifier, the device can also monitor currents.
Applications
- Base Stations
- Industrial Controls
- Network Switches/Routers
- Servers
- Smart Grid Network Systems
Documentation
Data Sheet 1
Design Note 2
Technical Articles 3
Product Selector Card 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX34440ETLA1+ | LFCSP | ||
| MAX34440ETLA1+T | LFCSP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 20, 2026 - 2571D PIN/ERRATA |
||
| MAX34440ETLA1+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Power System Management (PSM) & Sequencers 1 | ||
| MAX34441 | LAST TIME BUY | PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller |
Tools & Simulations
Software Development 1
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