MAX686EEE+ The MAX686EEE+ from Analog Devices is a DAC-controlled boost/inverter IC designed for LCD bias voltage applications. It offers an adjustable output voltage up to +/-27.5V and features an internal 600mA switch.
Mfr Part #:

MAX686EEE+

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The MAX686EEE+ from Analog Devices is a DAC-controlled boost/inverter IC designed for LCD bias voltage applications. It offers an adjustable output voltage up to +/-27.5V and features an internal 600mA switch.
✓ Total Stock: 9 pcs
$ Price Range: $1.08

MAX686EEE+ Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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9 pcs
9 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

MAX686EEE+ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Efficiency
Frequency
Function
Input Voltage
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Type
Output Voltage
Quiescent Current
Supplier Device Package
Synchronous Rectifier
Topology
Voltage

MAX686EEE+ Description

Short technical summary and product information.

The MAX686EEE+ is a versatile DAC-controlled boost/inverter integrated circuit from Analog Devices, designed to provide positive or negative LCD bias voltages up to +27.5V or -27.5V. It features an internal N-channel MOSFET switch with a current capability of 600mA and a 28V rating, eliminating the need for an external FET. The output voltage is digitally adjustable via a 6-bit digital-to-analog converter (DAC).

 

This IC operates with an input voltage range of +2.7V to +5.5V for the IC itself, and +0.8V to +27.5V for the inductor. It utilizes a current-limited, pulse-frequency-modulation (PFM) control scheme, achieving high efficiency over a wide range of load conditions. Its high switching frequency, up to 300kHz, allows for the use of small external components, contributing to space savings.

 

The MAX686EEE+ includes an LCDON output that automatically disables the LCD bias voltage when the display logic voltage is removed, protecting the display. With a typical quiescent supply current of 65µA and a shutdown current of 1.5µA, it is an excellent choice for battery-powered portable equipment such as Personal Digital Assistants, Notebook Computers, Portable Data-Collection Terminals, and Palmtop Computers.

 

The device is housed in a compact 16-pin QSOP package, offering a small footprint comparable to an 8-pin SO package. It also features a Power-OK indicator.

MAX686EEE+ Quick Information

Product Type: DC DC Switching Regulator
Canonical Name: MAX686EEE+ DAC-Controlled Boost/Inverter LCD Bias Supply with Internal Switch
Subcategory: DC-DC Switching Regulator

MAX686EEE+ Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MAX686EEE+ Estimated Pricing

Qty Low High
1+ $1.08 $1.08

Estimated market price range - modelled values for guidance only, not live distributor offers.

MAX686EEE+ Features

  • DAC-controlled adjustable LCD bias voltage.
  • Internal 500mA, 28V N-channel switch.
  • Output voltage up to +/-27.5V.
  • High switching frequency up to 300kHz.
  • Compact 16-pin QSOP package.

MAX686EEE+ Applications

  • Positive or negative LCD bias supply.
  • Ideal for portable digital assistants.
  • Suitable for notebook computers.
  • Used in data-collection terminals.
  • Powers palmtop computers.

MAX686EEE+ FAQs

6 frequently asked questions generated from this part’s specifications.
What is the input voltage range for the MAX686EEE+?

The VCC supply input range is 2.7V to 5.5V, and the VIN inductor input range is 0.8V to 27.5V.

What is the output voltage range of the MAX686EEE+?

The output voltage is adjustable up to +27.5V or -27.5V.

What is the switching frequency of the MAX686EEE+?

The switching frequency is up to 300kHz.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

What package is the MAX686EEE+ available in?

The MAX686EEE+ is available in a 16-QSOP surface-mount package.

Does the MAX686EEE+ have a DAC for output control?

Yes, it includes a 6-bit DAC for digitally controlled output voltage adjustment.

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