MAX1605EUT+ by Analog Devices

30V Internal Switch LCD Bias Supply


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.
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Features

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
6-Pin TDFN
6-Pin SOT23

Specifications

VIN (V) (min) 2.5
VIN (V) (max) 5.5
VOUT1 (V) (min) 2.5
VOUT1 (V) (max) 28
IOUT1 (A) (max) 0.02
Switch Type Internal
Output Adjust. Method Resistor
IQ (mA) (typ) 0.018
Shutdown Mode Supply Current (µA) (typ) 0.1
# DC-DC Outputs 1
Switching Frequency (kHz) 500
Package/Pins SOT23/6TDFN/6
BudgetaryPrice (See Notes) 1.84

Alternative Descriptions

30V Internal Switch LCD Bias S | Analog Devices


Frequently Asked Questions

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