Max8574eut + T sot-23-6 LCD driver price advantage
General Description
The MAX8570 family of LCD step-up converters uses an internal n-channel switch and an internal p-channel
output isolation switch. These converters operate from a 2.7V to 5.5V supply voltage and deliver up to 28V at the output.
A unique control scheme provides the highest efficiency over a wide range of load conditions. The internal
MOSFET switch reduces external component count and a high switching frequency (up to 800kHz) allows for
tiny surface-mount components. Three current-limit options are available. The MAX8570 and MAX8572 use
a 110mA current limit to reduce ripple and component size in low-current applications. For high-power requirements, the MAX8574 and MAX8575 use a 500mA current limit and supply up to 20mA at 20V. The MAX8571 and MAX8573 use a 250mA current limit for a compromise between ripple and power. Built-in safety features protect the internal switch and down-stream components from fault conditions.
Additional features include a low quiescent current and a True Shutdown mode to save power. The MAX8570/MAX8571/MAX8574 allow the user to set the output voltage between 3V and 28V, and the MAX8572/MAX8573/MAX8575 have a preset 15V output. Thesestep-up converters are ideal for small LCD panels with low current requirements, but can also be used in other
applications. The MAX8571 evaluation kit is available to help reduce design time.
♦ Small 6-Pin SOT23 Package Applications Handy Terminals Want to know more model stock Price Features ♦ 15V or Adjustable Output Voltage Up to 28V ♦ Safety Features Protect Against Output Faults ♦ 20mA at 20V from a Single Li+ Battery ♦ True Shutdown ♦ 87% Efficiency ♦ Up to 800kHz Switching Frequency LCD Bias Generators Polymer LEDs (OLED) Cellular or Cordless Phones Palmtop Computers Personal Digital Assistants (PDAs) Organizers
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