MAX8537

PRODUCTION

Dual-Synchronous Buck Controllers for Point-of-Load, Tracking, and DDR Memory Power Supplies

Data Sheet (Rev. 1) Product Selection Table

Part Models: 2
1ku List Price: Starting From $3.37

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Part Details

MAX8537/MAX8539: Complete DDR Supplies
MAX8538: Dual Nontracking Controller
Out-of-Phase (MAX8537/MAX8538) or In-Phase (MAX8539) Operation
4.5V to 23V Wide Input Range (Operate Down to 1.8V Input with External 5V Supply)
Tracking Supply Maintains V_TT = V_TTR = 1/2 V_DDQ
Adjustable Output from 0.8V to 3.6V with 1% Accuracy
VTTR Reference Sources and Sinks Up to 15mA
200kHz to 1.4MHz Adjustable Switching Frequency
All-Ceramic Design Achievable
>90% Efficiency
Independent POK_ and EN_
Adjustable Soft-Start and Soft-Stop for Each Output
Lossless Adjustable-Hiccup Current Limit
Output Overvoltage Protection
28-Pin QSOP Package

Part Models: 2
1ku List Price: Starting From $3.37

Documentation

Data Sheet 1

MAX8537-MAX8539: Dual-Synchronous Buck Controllers for Point-of-Load, Tracking, and DDR Memory Power Supplies Data Sheet (Rev.1) 07/04/2005

Reliability Data 1

MAX8537 Reliability Data 01/12/2023

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
MAX8537EEI+	28-QSOP-150_MIL	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX8537EEI+T	28-QSOP-150_MIL	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jan 24, 2019 - 1746N ASSEMBLY
		pcn_1746n
MAX8537EEI+	PRODUCTION
MAX8537EEI+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 3
MAX8553	PRODUCTION	4.5V to 28V Input, Synchronous PWM Buck Controllers for DDR Termination and Point-of-Load Applications
MAX8554	PRODUCTION	4.5V to 28V Input, Synchronous PWM Buck Controllers for DDR Termination and Point-of-Load Applications
MAX1718	PRODUCTION	Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP-II)

Evaluation Kits

Evaluation Kit for the MAX8537

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Features and Benefits

Complete DDR Supplies: V_DDQ, V_TT, and V_TTR

Out-of-Phase Operation

90% Efficiency

400kHz Switching Frequency

Independent POK_ and EN_ for Flexible Sequencing

Adjustable Soft-Start and Soft-Stop for Each Output

Lossless Adjustable Hiccup Current Limit

Output Overvoltage Protection

28-Pin QSOP Package

Fully Assembled and Tested

Product Details

The MAX8537 evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates the MAX8537 dual, out-of-phase, PWM synchronous buck controller. The EV kit is a complete power-management solution for a double-date-rate (DDR) memory supply. It generates the main memory voltage (V_DDQ), the tracking sinking/ sourcing termination voltage (V_TT), and the reference voltage (V_TTR). The EV kit takes a 12V input voltage and converts the voltage down to 2.5V for the V_DDQ supply, 1.25V for the V_TT supply, and 1.25V for the V_TTR reference. The 2.5V (V_DDQ) supply is capable of sourcing 20A, the 1.25V (V_TT) supply is capable of sinking/sourcing 8A, and V_TTR is capable of sinking/sourcing 15mA.

Applications

Broadband Routers
DDR Memory Power Supplies
Networking Systems
Notebooks and Desknotes
Power Combiner in Advanced VGA Cards
Power DSP Core Supplies
RAMBUS Memory Power Supplies
Servers and Storage Systems
xDSL Modems and Routers

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