MAX17000A

PRODUCTION

Complete DDR2 and DDR3 Memory Power-Management Solution

Packaged in a Small, Cost-Saving, 24-Pin, 4mm x 4mm TQFN

Data Sheet (Rev. 3) Product Selection Table

Part Models: 4
1ku List Price: Starting From $4.15

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Overview

SMPS Regulator (VDDQ)
- Quick-PWM with 100ns Load-Step Response
- Output Voltages—Preset 1.8V, 1.5V, or Adjustable 1.0V to 2.5V
- 1% V_OUT Accuracy Over Line and Load
- 26V Maximum Input Voltage Rating
- Accurate Valley Current-Limit Protection
- 200kHz to 600kHz Switching Frequency
Source/Sink Linear Regulator (VTT)
- ±2A Peak Source/Sink
- Low-Output Capacitance Requirement
- Output Voltages-Preset VDDQ/2 or REFIN Adjustable from 0.5V to 1.5V
Soft-Start/Soft-Shutdown
SMPS Power-Good Window Comparator
VTT Power-Good Window Comparator
Selectable Overvoltage Protection
Undervoltage/Thermal Protections
±3mA Reference Buffer (VTTR)

The MAX17000A pulse-width modulation (PWM) controller provides a complete power solution for notebook DDR, DDR2, and DDR3 memory. It comprises a step-down controller, a source-sink LDO regulator, and a reference buffer to generate the required VDDQ, VTT, and VTTR rails.

The VDDQ rail is supplied by a step-down converter using Maxim's proprietary Quick-PWM^™ controller. The high-efficiency, constant-on-time PWM controller handles wide input/output voltage ratios (low duty-cycle applications) with ease and provides 100ns response to load transients while maintaining a relatively constant switching frequency. The Quick-PWM architecture circumvents the poor load-transient timing problems of fixed-frequency current-mode PWMs while also avoiding the problems caused by widely varying switching frequencies in conventional constant-on-time and constant-off-time PWM schemes. The controller senses the current to achieve an accurate valley current-limit protection. It is also built in with overvoltage, undervoltage, and thermal protections. The MAX17000A can be set to run in three different modes: power-efficient SKIP mode, low-noise forced-PWM mode, and standby mode to support memory in notebook computer standby operation. The switching frequency is programmable from 200kHz to 600kHz to allow small components and high efficiency. The VDDQ output voltage can be set to a preset 1.8V or 1.5V, or be adjusted from 1.0V to 2.5V by an external resistor-divider. This output has 1% accuracy over line-and-load operating range.

The MAX17000A includes a ±2A source-sink LDO regulator for the memory termination VTT rail. This VTT regulator has a ±5mV deadband that either sources or sinks, ideal for the fast-changing load burst present in memory termination applications. This feature also reduces output capacitance requirements.

The VTTR reference buffer sources and sinks ±3mA, providing the reference voltage needed by the memory controller and devices on the memory bus.

The MAX17000A is available in a 24-pin, 4mm x 4mm, thin QFN package.

Applications

DDR, DDR2, and DDR3 Memory Supplies
Notebook Computers
SSTL Memory Supplies

Part Models: 4
1ku List Price: Starting From $4.15

Documentation

Data Sheet 1

MAX17000A: Complete DDR2 and DDR3 Memory Power-Management Solution Data Sheet (Rev.3) 06/05/2013

Reliability Data 1

MAX17000A 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
MAX17000AETG+	24-TQFN-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX17000AETG+CAJ	24-TQFN-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX17000AETG+T	24-TQFN-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX17000AETG+TCAJ	24-TQFN-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Mar 9, 2023 - 2276A WAFER FAB
		pcn_2276a
MAX17000AETG+	PRODUCTION
MAX17000AETG+CAJ	PRODUCTION
MAX17000AETG+T	PRODUCTION
MAX17000AETG+TCAJ	PRODUCTION
Jun 20, 2016 - 1612 ASSEMBLY
		pcn_1612
MAX17000AETG+	PRODUCTION
MAX17000AETG+T	PRODUCTION
MAX17000AETG+TCAJ	PRODUCTION

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

Software Resources

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Evaluation Kits

Evaluation Kit for the MAX17000

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Features and Benefits

Complete DDR Supplies: VDDQ, VTT, and VTTR
V_IN Range: 7V to 20V
300kHz Switching Frequency
Independent Shutdown and Standby Controls
Overvoltage Protection (OVP)
Open-Drain, Power-Good Output Signal Indicators (PGOOD1 and PGOOD2)
Low-Profile Surface-Mount Components
Fully Assembled and Tested

Product Details

The MAX17000 evaluation kit (EV kit) is a fully assembled and tested surface-mount printed-circuit board (PCB) that demonstrates the MAX17000 DDR memory power solution. The EV kit provides the regulated voltages required in a complete DDR memory system. The EV kit generates the main memory voltage (VDDQ), the tracking sinking/sourcing termination voltage (VTT), and the reference voltage (VTTR).

The switch-mode power-supply (SMPS) regulator, which operates at 300kHz switching frequency, generates a preset 1.8V VDDQ (OUT) main memory voltage that is capable of sourcing 10A. The termination regulator provides a 0.9V VTT supply that is capable of sinking/sourcing 2A. The termination reference buffer provides a 0.9V VTTR supply that is capable of sinking/sourcing 3mA.

The EV kit requires an input voltage source of 7V to 20V (IN) and a low-power 5V (VDD) biasing supply.