SMPS Controllers Breath Life Into Notebooks

Dec. 1, 2004
Managing power in notebook computers and other battery-powered systems, the MAX1533 and MAX1537, dual, step-down, switch-mode power-supply (SMPS) controllers employ synchronous rectification to generate regulated 5V/3.3V outputs. Both devices rely on

Managing power in notebook computers and other battery-powered systems, the MAX1533 and MAX1537, dual, step-down, switch-mode power-supply (SMPS) controllers employ synchronous rectification to generate regulated 5V/3.3V outputs. Both devices rely on fixed-frequency operation with interleaving to minimize ripple current across the input range up to 26V. When their main PWM regulators are in regulation, automatic bootstrap switches bypass the internal linear regulators and provide currents up to 200 mA from each output. The MAX1537 includes an additional adjustable 150-mA linear regulator for use with a secondary winding to provide a 12V supply. Other shared features include power-up sequencing, a power-good output, digital soft-start, and a soft shutdown output discharge. Options include inductor-saturation, over-voltage, and under-voltage protection. The MAX1533 comes in a 32-pin TQFN, and the MAX1537 in a 36-pin TQFN. Prices start at $5.10 and $5.20 each/1,000, respectively. MAXIM INTEGRATED PRODUCTS, Sunnyvale, CA. (800) 998-8800.

Company: MAXIM INTEGRATED PRODUCTS

Product URL: Click here for more information

Sponsored Recommendations

Highly Integrated 20A Digital Power Module for High Current Applications

March 20, 2024
Renesas latest power module delivers the highest efficiency (up to 94% peak) and fast time-to-market solution in an extremely small footprint. The RRM12120 is ideal for space...

Empowering Innovation: Your Power Partner for Tomorrow's Challenges

March 20, 2024
Discover how innovation, quality, and reliability are embedded into every aspect of Renesas' power products.

Article: Meeting the challenges of power conversion in e-bikes

March 18, 2024
Managing electrical noise in a compact and lightweight vehicle is a perpetual obstacle

Power modules provide high-efficiency conversion between 400V and 800V systems for electric vehicles

March 18, 2024
Porsche, Hyundai and GMC all are converting 400 – 800V today in very different ways. Learn more about how power modules stack up to these discrete designs.

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!