MAX1606

28V Internal Switch LCD Bias Supply with True Shutdown™

LCD Bias Supply Uses Internal Switches to Deliver Up to 28V, and True Shutdown


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Description

The MAX1606 is a step-up DC-DC converter that contains a 0.5A internal power switch and a 0.5A output isolation switch in an 8-pin µMAX® 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 28V.

The MAX1606 uses a unique control scheme that provides high 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 true shutdown mode that saves power by disconnecting the output from the input. The MAX1606 is ideal for small LCD panels with low current requirements but can also be used in other applications. A MAX1606 evaluation kit is available to help speed up design time.
MAX1606: Functional Diagram MAX1606: Functional Diagram Enlarge+

Key Features

  • Adjustable Output Voltage up to 28V
  • 20mA at 20V from a Single Li+ Battery
  • True Shutdown (Output Disconnected from Input)
  • Output Short-Circuit Protection
  • 88% Efficiency
  • Up to 500kHz Switching Frequency
  • Selectable Inductor Current Limit (125mA, 250mA, or 500mA)
  • 0.1µA Shutdown Current
  • 8-Pin µMAX Package

Applications/Uses

  • Cell Phones/Cordless Phones
  • Handy Terminals
  • LCD Bias Generators
  • Organizers
  • Palmtop Computers
  • PDAs and Other Handheld Devices
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
IOUT1
(A)
Output Adjust. MethodSwitch TypeICC
(mA)
Shutdown Mode Supply Current
(µA)
Shutdown Mode Supply Current
(µA)
DC-DC OutputsOper. Freq.
(kHz)
Package/PinsBudgetary
Price
minmaxminmaxtyptypmaxSee Notes
MAX1606 0.85.51.25280.02ResistorInternal0.160.111500
UMAX/8
$1.75 @1k
See All Step-Up Switching Regulators (98)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX1606EVKIT: Evaluation Kit for the MAX1606
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

 
Status:
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