MAX1744

PRODUCTION

High-Voltage, Step-Down DC-DC Controller in µMAX

High-Voltage (36V) Step-Down DC-DC Controller in µMAX

Data Sheet (Rev. 5) Product Selection Table

Part Models: 6
1ku List Price: Starting From $3.37

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Part Details

High-Voltage Operation (up to 36V_IN)
Efficiency > 90%
Output Power Capability Exceeds 50W
10-Pin µMax Package
Low-Dropout Voltage
100% (max) Duty Cycle
90µA Quiescent Current
4µA Shutdown Current
Up to 330kHz Switching Frequency
Output Voltage
- 5V or 3.3V (MAX1744)
- Adjustable 1.25V to 18V (MAX1745)
Current-Limited Control Scheme

Part Models: 6
1ku List Price: Starting From $3.37

Documentation

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
MAX1744AUB+	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX1744AUB+T	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX1744EUB+	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX1744EUB+T	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX1744EUB/V+	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX1744EUB/V+T	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Sep 19, 2018 - 1753N ASSEMBLY
		pcn_1753n
MAX1744AUB+	PRODUCTION
MAX1744AUB+T	PRODUCTION
MAX1744EUB+	PRODUCTION
MAX1744EUB+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Hardware Ecosystem

Parts	Product Life Cycle	Description
External Power Switch Buck Controllers 4
MAX797	PRODUCTION	Step-Down Controllers with Synchronous Rectifier for CPU Power
MAX797H	PRODUCTION	High-Voltage, Step-Down Controller with Synchronous Rectifier for CPU Power
MAX1653	PRODUCTION	High-Efficiency, PWM, Step-Down DC-DC Controllers in 16-Pin QSOP
MAX1655	PRODUCTION	High-Efficiency, PWM, Step-Down DC-DC Controllers in 16-Pin QSOP

Micropower Buck Regulators 2
MAX1626	PRODUCTION	5V/3.3V or Adjustable, 100% Duty Cycle, High-Efficiency, Step-Down DC-DC Controllers
MAX1627	PRODUCTION	5V/3.3V or Adjustable, 100% Duty Cycle, High-Efficiency, Step-Down DC-DC Controllers
Multiple Output Buck Regulators 2
MAX1652		High-Efficiency, PWM, Step-Down DC-DC Controllers in 16-Pin QSOP
MAX1654	PRODUCTION	High-Efficiency, PWM, Step-Down DC-DC Controllers in 16-Pin QSOP

Evaluation Kits

Evaluation Kit for the MAX1744, MAX1745

Buy Now View Details

Features and Benefits

High Input Voltage (up to 36V)
Selectable 3.3V or 5V Output Voltage (MAX1744)
1.25V to 18V Adjustable Output Voltage (MAX1745)
Low Dropout Voltage
100% Maximum Duty Cycle
2A Output Current
Up to 330kHz Switching Frequency
4µA IC Shutdown Current
10-Pin µMAX® Package
Fully Assembled and Tested

Product Details

The MAX1744 evaluation kit (EV kit) provides a selectable 3.3V or 5V output voltage from input as high as 36V. The MAX1744 operates up to 100% duty cycle, extending the usable input voltage range. The 100% duty cycle and a low 100mV current-sense level permit very low dropout voltages. The circuit is configured to deliver up to 2A of output current with greater than 90% conversion efficiency. The output current can be increased by changing the external components.

This EV kit is a fully assembled and tested circuit board. It can also be used to evaluate the MAX1745, which has an adjustable output voltage, by selecting feedback resistors R2 and R3.

Applications

Automated Test Equipment (ATE)
Automatic Utility Meter Reading
Automotive Engine Control
Automotive Passenger Compartment
Automotive Sensors
Battery Chargers
Building Energy Management (HVAC)
Building Security/Remote Cameras
Cable Modems
Cell Phone Base Stations
Computers: Desktop, Workstation, Server
Global Positioning Systems (GPS)
High-Speed Access (Telecom)
Industrial Sensor Transmitters/Transducers
Local Multipoint Distribution Systems
Modems
Network Hubs, Switches, Routers
Notebook Computers
Telecom Switches
Wireless Local Loop (WLL)

Evaluation Kit for the MAX1744, MAX1745

Buy Now View Details

Features and Benefits

High Input Voltage (up to 36V)
Selectable 3.3V or 5V Output Voltage (MAX1744)
1.25V to 18V Adjustable Output Voltage (MAX1745)
Low Dropout Voltage
100% Maximum Duty Cycle
2A Output Current
Up to 330kHz Switching Frequency
4µA IC Shutdown Current
10-Pin µMAX® Package
Fully Assembled and Tested

Product Details

This EV kit is a fully assembled and tested circuit board. It can also be used to evaluate the MAX1745, which has an adjustable output voltage, by selecting feedback resistors R2 and R3.

Applications

Automated Test Equipment (ATE)
Automatic Utility Meter Reading
Automotive Engine Control
Automotive Passenger Compartment
Automotive Sensors
Battery Chargers
Building Energy Management (HVAC)
Building Security/Remote Cameras
Cable Modems
Cell Phone Base Stations
Computers: Desktop, Workstation, Server
Global Positioning Systems (GPS)
High-Speed Access (Telecom)
Industrial Sensor Transmitters/Transducers
Local Multipoint Distribution Systems
Modems
Network Hubs, Switches, Routers
Notebook Computers
Telecom Switches
Wireless Local Loop (WLL)

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Part Details

Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 1

Hardware Ecosystem

Evaluation Kits

Features and Benefits

Product Details

Features and Benefits

Product Details

Latest Discussions

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