MAX1714
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MAX1714

High-Speed Step-Down Controller for Notebook Computers

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Low-Cost, Ultra-Fast, 1%-Accurate Controllers Power Next-Generation Notebook CPU Core and I/O

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Info: : PRODUCTION tooltip
Part Details
Part Models 4
1ku List Price Starting From $4.19
Features
  • Ultra-High Efficiency
  • No Current-Sense Resistor (Lossless ILIMIT)
  • Quick-PWM with 100ns Load-Step Response
  • 1% VOUT Accuracy Over Line and Load
  • 2.5V/3.3V Fixed or 1V to 5.5V Adjustable Output Range
  • 2V to 28V Battery Input Range
  • 200/300/450/600kHz Switching Frequency
  • Overvoltage Protection (MAX1714A)
  • Undervoltage Protection
  • 1.7ms Digital Soft-Start
  • Drives Large Synchronous-Rectifier FETs
  • 2V ±1% Reference Output
  • Power-Good Indicator
Additional Details
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The MAX1714 pulse-width modulation (PWM) controller provides the high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high-voltage batteries to generate low-voltage CPU core or chip-set/RAM supplies in notebook computers.

Maxim's proprietary Quick-PWM™ quick-response, constant-on-time PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns "instant-on" response to load transients while maintaining a relatively constant switching frequency.

The MAX1714 achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs. Efficiency is further enhanced by an ability to drive very large synchronous-rectifier MOSFETs.

Single-stage buck conversion allows these devices to directly step down high-voltage batteries for the highest possible efficiency. Alternatively, two-stage conversion (stepping down the +5V system supply instead of the battery) at a higher switching frequency allows the minimum possible physical size.

The MAX1714 is intended for CPU core, chipset, DRAM, or other low-voltage supplies as low as 1V. The MAX1714A is available in a 20-pin QSOP package and includes overvoltage protection. The MAX1714B is available in a 16-pin QSOP package with no overvoltage protection. For applications requiring VID compliance or DAC control of output voltage, refer to the MAX1710/MAX1711 data sheet. For a dual output version, refer to the MAX1715 data sheet.

Applications

  • 1.8V and 2.5V I/O Supplies
  • Chipset/RAM Supplies as Low as 1V
  • CPU Core Supplies
  • Notebook Computers
Part Models 4
1ku List Price Starting From $4.19

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Jul 3, 2023

- 2361NA

WAFER FAB

MAX1714AEEP+

PRODUCTION

MAX1714AEEP+T

PRODUCTION

Apr 27, 2023

- 2361N1

WAFER FAB

MAX1714AEEP+

PRODUCTION

MAX1714AEEP+T

PRODUCTION

MAX1714BEEE+

PRODUCTION

MAX1714BEEE+T

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Filter by Model

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Part Models

Product Lifecycle

PCN

Jul 3, 2023

- 2361NA

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WAFER FAB

MAX1714AEEP+

PRODUCTION

MAX1714AEEP+T

PRODUCTION

Apr 27, 2023

- 2361N1

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WAFER FAB

MAX1714AEEP+

PRODUCTION

MAX1714AEEP+T

PRODUCTION

MAX1714BEEE+

PRODUCTION

MAX1714BEEE+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

MAX1714AEVKIT

Evaluation Kit for the MAX1714A

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MAX1714AEVKIT

Evaluation Kit for the MAX1714A

Evaluation Kit for the MAX1714A

Features and Benefits

  • +5V to +24V Input Voltage Range
  • Preset 2.5V Output Voltage
  • 1.0V to 5.5V Adjustable Output
  • 4A Output Current
  • 94% Efficient (VOUT = 2.5V, VBATT = 7V, ILOAD = 2A)
  • 300kHz Switching Frequency
  • No Current-Sense Resistor
  • Power-Good Output
  • Low-Profile Components
  • Fully Assembled and Tested

Product Detail

The MAX1714A evaluation kit (EV kit) demonstrates a standard 4A application circuit. This DC-DC converter steps down high-voltage batteries and/or AC adapters, generating a precision, low-voltage rail for use as chipset, DRAM, and other low-voltage supplies. For higher current applications up to 12A, refer to the MAX1714A data sheet.

The MAX1714A EV kit provides a 2.5V output voltage from a +5V to +24V battery input range. It delivers up to 4A output current with greater than 90% efficiency while operating at a 300kHz switching frequency, and has superior line- and load-transient response.

This EV kit is a fully assembled and tested circuit board. It also allows evaluation of other output voltages in the 1.0V to 5.5V range by changing feedback resistors R1 and R2.

Applications

  • 1.8V and 2.5V I/O Supplies
  • Chipset/RAM Supplies as Low as 1V
  • CPU Core Supplies
  • Notebook Computers

MAX1714BEVKIT

Evaluation Kit for the MAX1714B

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MAX1714BEVKIT

Evaluation Kit for the MAX1714B

Evaluation Kit for the MAX1714B

Features and Benefits

  • +4.5V to +24V Input Voltage Range
  • Preset 2.5V Output Voltage
  • 1.0V to 5.5V Adjustable Output
  • 4A Output Current
  • 94% Efficient (VOUT = 2.5V, VBATT = 7V, ILOAD = 2A)
  • 300kHz Switching Frequency
  • No Current-Sense Resistor
  • Power-Good Output
  • 16-Pin QSOP Package
  • Low-Profile Components
  • Fully Assembled and Tested

Product Detail

The MAX1714B evaluation kit (EV kit) demonstrates a standard 4A application circuit. This DC-DC converter steps down high-voltage batteries and/or AC adapters, generating a precision, low-voltage rail for use as chipset, dynamic random-access memory (DRAM), and other low-voltage supplies.

The MAX1714B EV kit provides a 2.5V output voltage from a +4.5V to +24V battery input range. It delivers up to 4A output current with greater than 90% efficiency while operating at a 300kHz switching frequency, and has superior line- and load-transient response.

This EV kit is a fully assembled and tested circuit board. It also allows evaluation of other output voltages in the 1.0V to 5.5V range by changing feedback resistors R1 and R2.

Applications

  • 1.8V and 2.5V I/O Supplies
  • Chipset/RAM Supplies as Low as 1V
  • CPU Core Supplies
  • Notebook Computers

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