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MAX1748

Maxim
Part Number MAX1748
Manufacturer Maxim
Description Triple-Output TFT LCD DC-DC Converter
Published May 6, 2005
Detailed Description MAX1748/MAX8726 19-3430; Rev 0; 10/04 EVAALVUAAILTAIOBNLEKIT Triple-Output TFT-LCD DC-DC Converters General Descripti...
Datasheet PDF File MAX1748 PDF File

MAX1748
MAX1748

Overview
MAX1748/MAX8726 19-3430; Rev 0; 10/04 EVAALVUAAILTAIOBNLEKIT Triple-Output TFT-LCD DC-DC Converters General Description The MAX1748/MAX8726 triple-output DC-DC converters in a low-profile TSSOP package provide the regulated voltages required by active-matrix, thin-film transistor (TFT) liquid-crystal displays (LCDs).
One high-power DC-DC converter and two low-power charge pumps convert the +3.
3V to +5V input supply voltage into three independent output voltages.
The primary 1MHz DC-DC converter generates a boosted output voltage (VMAIN) up to 13V using ultra-small inductors and ceramic capacitors.
The low-power BiCMOS control circuitry and the low on-resistance (0.
35Ω) of the integrated power MOSFET allows efficiency up to 93%.
The dual charge pumps independently regulate one positive output (VPOS) and one negative output (VNEG).
These low-power outputs use external diode and capacitor stages (as many stages as required) to regulate output voltages up to +40V and down to -40V.
A pr...


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