Monolithic Power Systems MPQ1531 | Demoboard EVQ1531-M-00A

Description

The EVQ1531-M-00A Evaluation Board isdesigned to demonstrate the capabilities ofMPS’ MP1531 triple output step-up converterwith charge-pumps.The MP1531 includes a 250KHz fixed-frequencystep-up converter and a positive and negativelinear regulator. The linear regulators arepowered via charge-pumps driven by the step-upconverter switch node.A single on/off control enables all 3 outputs.The outputs are internally sequenced at poweronfor ease of use. An internal soft-startprevents overloading the input source at startup.Cycle-by-cycle current limit reduces componentstress.

Features

• 2.7V to 5.5V Operating Input Range
• 500mA Switch Current Limit
• 3 Outputs in Single Package
• Step-Up Converter up to 22V
• Positive 10mA Linear Regulator
• Negative 10mA Linear Regulator
• 250mΩ Internal Power MOSFET Switch
• Up to 95% Efficiency
• 1μA Shutdown Mode
• Fixed 250KHz Frequency
• Positive Regulator up to 38V
• Negative Regulator down to -20V
• Internal Power-On Sequencing
• Adjustable Soft-Start/Fault Timer
• Thermal Shutdown
• Cycle-by-Cycle Over Current Protection
• Under Voltage Lockout
• Ready Flag

Typical applications

• TFT LCD Displays/ Car Navigation Displays
• Tablet PCs
• Portable DVD Players

More information

• Datasheet
• IC product information