50 W constant voltage output driver

5 W CCCV AC-DC Adapter GreenPoint® Reference Design

40 W Printer AC-DC Adapter GreenPoint® Reference Design

30 W Automotive 410 kHz Preregulator, Non-Isolated, Synchronous Buck Reference Design Based on NCV881930

30 W Automotive 2 MHz Preregulator, Non-Isolated, Synchronous Buck Reference Design Based on NCV891930

3.3 kW APM OBC Demonstration Board Test Report

255 W, 80PLUS® Silver Certified ATX Power Supply GreenPoint® Reference Design

25 W 2-channel dimmable buck driver

200 W Game Console AC-DC Adapter GreenPoint® Reference Design

20 WT Lamp Direct AC LED Driver with Analog Dimming

20 W direct AC LED driver analog and phase-cut dimming

100 W automotive preregulator, non-isolated, synchronous buck reference design based on NCV881930

1 W to 5 W MR16 LED Driver GreenPoint® Reference Design

FPGA Power Solutions

Complete power solution for FPGAs

Buck Regulator Current Limiting Circuit

This article demonstrates how to achieve current limit for the MAX1692 PWM step-down regulator by using a MAX4173H current-sense amplifier.

Portable devices require high-performance battery chargers

Three techniques for charging lithium-ion (Li+) batteries are described. Linear, switch-mode, and constant-current pulse circuits are shown for each charging method.

Single Cell Li+ Cradle Charger with Linear AC Adapter

The single cell Lithium-ion (Li-ion) battery charger that does not dissipate power (no heat) can also use a low cost linear AC adapter. This application note discusses how to design a simple and low-cost Li-ion charger.

Isolated power supplies for telecom applications

Simple easy to use high side current sense amps protects power supplies as a result of irregular supply voltage caused by short-circuit conditions.

Provides +5V and +3.3V power to portable devices from USB port

A portable device using the circuit of Figure 1 derives power from the USB bus. The MAX1811 uses USB power charges a lithium-ion (Li+) battery at, USB compatible, 100mA or 500mA rates. Battery power is then stepped up with the MAX1797 to create the 5V supply rail. The 5V supply rail is then stepped down with the MAX1837 to create the 3.3V supply rail. The circuit includes a low battery shutdown to protect the Li+ battery and offers a convenient charging LED.

Driving LEDs in Battery-Powered Applications: Efficiently Control Brightness Power

White light-emitting diode (WLED) drivers provide high efficiency and brightness matching for LCD backlighting in displays. To control brightness, these drivers regulate current going into LEDs that are arranged in either serial or parallel configuration. Charge pumps drive parallel LEDs whose currents are regulated with individual regulators or simple ballast resistors. Inductor-based converters deliver current to a string of LEDs, inherently equal. Both configurations aim to drive LEDs efficiently for cell phones, PDAs, and digital still cameras.