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Low-Voltage DDR Linear Regulators

Low-Cost, Low-Voltage DDR Linear Regulators Source and Sink Up to 3A Peak (typ) Using Internal n-Channel MOSFETs

Product Details

The MAX1510/MAX17510 DDR linear regulators source and sink up to 3A peak (typ) using internal n-channel MOSFETs. These linear regulators deliver an accurate 0.5V to 1.5V output from a low-voltage power input (VIN = 1.1V to 3.6V). The MAX1510/MAX17510 use a separate 3.3V bias supply to power the control circuitry and drive the internal n-channel MOSFETs.

The MAX1510/MAX17510 provide current and thermal limits to prevent damage to the linear regulator. Additionally, the MAX1510/MAX17510 generate a power-good (PGOOD) signal to indicate that the output is in regulation. During startup, PGOOD remains low until the output is in regulation for 2ms (typ). The internal soft-start limits the input surge current.

The MAX1510/MAX17510 power the active-DDR termination bus that requires a tracking input reference. The MAX1510/MAX17510 can also be used in low-power chipsets and graphics processor cores that require dynamically adjustable output voltages. The MAX1510/MAX17510 are available in a 10-pin, 3mm × 3mm thin DFN package.

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Key Features

  • Internal Power MOSFETs with Current Limit (3A typ)
  • Fast Load-Transient Response
  • External Reference Input with Reference Output Buffer
  • 1.1V to 3.6V Power Input
  • ±15mV (max) Load-Regulation Error
  • Thermal-Fault Protection
  • Shutdown Input
  • Power-Good Window Comparator with 2ms (typ) Delay
  • Small, Low-Profile 10-Pin, 3mm × 3mm TDFN Package
  • Ceramic or Polymer Output Capacitors

Applications/Uses

  • Active Termination Buses
  • Chipset/RAM Supplies as Low as 0.5V
  • DDR Memory Termination
  • Graphics Processor Core Supplies
  • Notebook and Desktop Computers
Parametric specs for Linear Regulators
VIN (V) (min) 1.1
VIN (V) (max) 3.6
Adj. VOUT (V) (min) 0.5
Adj. VOUT (V) (max) 1.5
Rated ILOAD (mA) 2000
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.35
ICC (µA) (max) 1300
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-10%
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +85
Package/Pins TDFN/10
Budgetary
Price (See Notes)
$2.85 @1k
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Simplified Block Diagram

MAX1510, MAX17510: Functional Diagram MAX1510, MAX17510: Functional Diagram Zoom icon

Technical Docs

Data Sheet Low-Voltage DDR Linear Regulators Apr 14, 2020

Design & Development

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Description

The MAX1510 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that contains the MAX1510, a low-voltage linear regulator for DDR memory termination. The low-voltage linear regulator provides a variable 0.5V to 1.5V output voltage range. The EV kit requires a 1.1V to 3.6V input voltage source, and a 3.3V low-power biasing supply. The EV kit is capable of sourcing or sinking up to 1.5A continuous.

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Features

  • 0.5V to 1.5V Output Voltage Range
  • Sources or Sinks Up to 1.5A Continuous
  • 1.1V to 3.6V Input Voltage Range
  • External Reference Input with ±5mA Reference Output Buffer
  • Output Remote Sense
  • Open-Drain, Power-Good Output Signal
  • Low-Profile Surface-Mount Components
  • Fully Assembled and Tested

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Parameters

Parametric specs for Linear Regulators
VIN (V) (min) 1.1
VIN (V) (max) 3.6
Adj. VOUT (V) (min) 0.5
Adj. VOUT (V) (max) 1.5
Rated ILOAD (mA) 2000
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.35
ICC (µA) (max) 1300
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-10%
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +85
Package/Pins TDFN/10
Budgetary
Price (See Notes)
$2.85 @1k

Key Features

  • Internal Power MOSFETs with Current Limit (3A typ)
  • Fast Load-Transient Response
  • External Reference Input with Reference Output Buffer
  • 1.1V to 3.6V Power Input
  • ±15mV (max) Load-Regulation Error
  • Thermal-Fault Protection
  • Shutdown Input
  • Power-Good Window Comparator with 2ms (typ) Delay
  • Small, Low-Profile 10-Pin, 3mm × 3mm TDFN Package
  • Ceramic or Polymer Output Capacitors

Applications/Uses

  • Active Termination Buses
  • Chipset/RAM Supplies as Low as 0.5V
  • DDR Memory Termination
  • Graphics Processor Core Supplies
  • Notebook and Desktop Computers

Description

The MAX1510/MAX17510 DDR linear regulators source and sink up to 3A peak (typ) using internal n-channel MOSFETs. These linear regulators deliver an accurate 0.5V to 1.5V output from a low-voltage power input (VIN = 1.1V to 3.6V). The MAX1510/MAX17510 use a separate 3.3V bias supply to power the control circuitry and drive the internal n-channel MOSFETs.

The MAX1510/MAX17510 provide current and thermal limits to prevent damage to the linear regulator. Additionally, the MAX1510/MAX17510 generate a power-good (PGOOD) signal to indicate that the output is in regulation. During startup, PGOOD remains low until the output is in regulation for 2ms (typ). The internal soft-start limits the input surge current.

The MAX1510/MAX17510 power the active-DDR termination bus that requires a tracking input reference. The MAX1510/MAX17510 can also be used in low-power chipsets and graphics processor cores that require dynamically adjustable output voltages. The MAX1510/MAX17510 are available in a 10-pin, 3mm × 3mm thin DFN package.

Mobile App

Simplified Block Diagram

MAX1510, MAX17510: Functional Diagram MAX1510, MAX17510: Functional Diagram Zoom icon

Technical Docs

Data Sheet Low-Voltage DDR Linear Regulators Apr 14, 2020

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal