MAX618
PRODUCTION28V, PWM, Step-Up DC-DC Converter
High-Voltage, High Current Step-Up in QSOP Also Offers SEPIC and Flyback Topologies
- Part Models
- 3
- 1ku List Price
- Starting From $6.64
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
Documentation
Data Sheet 1
Technical Articles 1
Brochure 1
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+ | QSOP | ||
| MAX618EEE+T | QSOP | ||
| MAX618EEE/GG8 | Quarter Small-Outline Package |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareEvaluation Kits
Evaluation Kit for the MAX618