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MAX1605: 30V Internal Switch LCD Bias Supply Data Sheet (Rev. 2)12/3/2018PDF1M
Overview
Features and Benefits
- Adjustable Output Voltage up to 30V
- 20mA at 20V from a Single Li+ Battery
- 88% Efficiency
- Up to 500kHz Switching Frequency
- Selectable Inductor Current Limit (125mA, 250mA, or 500mA)
- 18µA Operating Supply Current
- 0.1µA Shutdown Current
- Avaiable in Two Small Packages
- 6-Pin TDFN
- 6-Pin SOT23
Product Details
The MAX1605 boost converter contains a 0.5A internal switch in a tiny 6-pin SOT23 package. The IC operates from a +2.4V to +5.5V supply voltage, but can boost battery voltages as low as 0.8V up to 30V at the output.
The MAX1605 uses a unique control scheme providing the highest efficiency over a wide range of load conditions. An internal 0.5A MOSFET reduces external component count, and a high switching frequency (up to 500kHz) allows for tiny surface-mount components. The current limit can be set to 500mA, 250mA, or 125mA, allowing the user to reduce the output ripple and component size in low-current applications.
Additional features include a low quiescent supply current and a shutdown mode to save power. The MAX1605 is ideal for small LCD panels with low current requirements, but can also be used in other applications. A MAX1605EVKIT evaluation kit (EV kit) is available to help speed up design time.
Applications
- Cell Phones/Cordless Phones
- Handy Terminals
- LCD Bias Generators
- Organizers
- Palmtop Computers
- PDAs and Other Handheld Devices
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Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
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