MAX618

PRODUCTION

28V, PWM, Step-Up DC-DC Converter

High-Voltage, High Current Step-Up in QSOP Also Offers SEPIC and Flyback Topologies

Data Sheet (Rev. 3) Product Selection Table

Part Models: 3
1ku List Price: Starting From $5.24

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Overview

Adjustable Output Voltage Up to +28V
Up to 93% Efficiency
Wide Input Voltage Range (+3V to +28V)
Up to 500mA Output Current at +12V

500µA Quiescent Supply Current
3µA Shutdown Current
250kHz Switching Frequency
Small 1W, 16-Pin QSOP Package

The MAX618 CMOS, PWM, step-up DC-DC converter generates output voltages up to 28V and accepts inputs from +3V to +28V. An internal 2A, 0.3Ω switch eliminates the need for external power MOSFETs while supplying output currents up to 500mA or more. A PWM control scheme combined with Idle Mode™ operation at light loads minimizes noise and ripple while maximizing efficiency over a wide load range. No-load operating current is 500µA, which allows efficiency up to 93%.

A fast 250kHz switching frequency allows the use of small surface-mount inductors and capacitors. A shutdown mode extends battery life when the device is not in use. Adaptive slope compensation allows the MAX618 to accommodate a wide range of input and output voltages with a simple, single compensation capacitor.

The MAX618 is available in a thermally enhanced 16-pin QSOP package that is the same size as an industry-standard 8-pin SO but dissipates up to 1W. An evaluation kit (MAX618EVKIT) is available to help speed designs.

Applications

Industrial +24V and +28V Systems
LCD Displays
Palmtop Computers

Part Models: 3
1ku List Price: Starting From $5.24

Documentation

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
MAX618EEE+	16-QSOP-150_MIL	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX618EEE+T	16-QSOP-150_MIL	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX618EEE/GG8	Quarter Small-Outline Package	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 7, 2023 - 2361C WAFER FAB
		pcn_2361c
MAX618EEE+	PRODUCTION
MAX618EEE+T	PRODUCTION
MAX618EEE/GG8	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 MAX618

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Features and Benefits

+3V to V_OUT Input Voltage Range
12V or Adjustable Output Voltage
Up to 500mA Output Current
Internal 2A, 28V MOSFET Switch
3µA Shutdown Current
250kHz Switching Frequency
Surface-Mount Components
Fully Assembled and Tested

Product Details

The MAX618 evaluation kit (EV kit) is a constant-frequency, PWM, step-up switching regulator with an internal 2A, 28V n-channel MOSFET. The EV kit accepts a +3V to V_OUT input and converts it to a 12V output for currents up to 500mA. Conversion efficiency is greater than 90%. The EV kit operates at 250kHz, allowing the use of small external components.

The MAX618 EV kit is a fully assembled and tested surface-mount circuit board.

Applications

Automotive-Powered DC-DC Converters
Industrial +24V and +28V Systems
LCD Displays
Palmtop Computers

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1 Years Ago

Overview

Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 1