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MAX1681ESA+ +BOM

Power management integrated circuit MAX1681ESA+ features a DC/DC converter supporting input voltage range of 3 to 5

Manufacturer:

Analog Devices
Mfr.Part #:

MAX1681ESA+
Datasheet:

MAX1681ESA+ Datasheet (PDF)
Mounting Style:

SMD/SMT
Topology:

Boost, Inverting
Output Voltage:

- 5 V, 10 V
Output Current:

125 mA
EDA/CAD Models:

Request Free CAD Models for MAX1681ESA+

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MAX1681ESA+ General Description

MAX1681ESA+ is a current-mode PWM controller designed for high-brightness LED driver applications. It operates with an input voltage range of 4.5V to 40V, making it suitable for various LED lighting systems. The device features a fixed frequency PWM controller with an adjustable peak current limit, allowing for precise regulation of LED currents.The MAX1681ESA+ offers a wide dimming range of up to 1000:1 through its PWM dimming input. It also includes a built-in Schmitt trigger for improved noise immunity and a soft-start function to reduce inrush current during startup. Additionally, the device has built-in thermal shutdown and overvoltage protection features to ensure safe and reliable operation.The MAX1681ESA+ comes in a small 8-pin SOIC package and operates over a wide temperature range of -40°C to 85°C.

Key Features

Wide input voltage range of 4V to 40V

Integrated high side LED current sense

Programmable LED current up to 450mA

Dimming control through PWM or analog signal

Over-temperature protection

Small package size (8-pin SOIC)

High efficiency boost converter for powering LED strings

Application

The MAX1681ESA+ is typically used in automotive lighting, LED backlighting, and general DC-DC lighting applications

It is a high-voltage, adjustable LED driver that offers precise current regulation and dimming control capabilities

Specifications

Product Category	Switching Voltage Regulators	Mounting Style	SMD/SMT
Topology	Boost, Inverting	Output Voltage	- 5 V, 10 V
Output Current	125 mA	Number of Outputs	1 Output
Input Voltage, Min	3 V	Input Voltage, Max	5.5 V
Switching Frequency	1 MHz	Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C	Series	MAX1681
Input Voltage	3 V to 5.5 V	Operating Supply Current	20 mA
Product Type	Switching Voltage Regulators	Shutdown	Shutdown
Factory Pack Quantity	100	Subcategory	PMIC - Power Management ICs
Type	Switched Capacitor Voltage Converter	Part # Aliases	MAX1681
Unit Weight	0.017870 oz