Product category: Power Supply ICs and Controllers
News Release from: Maxim Integrated Products | Subject: MAX8726
Edited by the Electronicstalk Editorial Team on 22 November 2004
Convertor provides three outputs for TFT
LCDs
The MAX8726 is a triple-output DC/DC convertor packaged in a low-profile TSSOP that provides the regulated voltages required by active-matrix TFT liquid crystal displays.
The MAX8726 is a triple-output DC/DC convertor packaged in a low-profile TSSOP that provides the regulated voltages required by active-matrix TFT liquid crystal displays One high-power DC/DC convertor and two low-power charge pumps convert the +3.3 to +5V input supply into three independent output voltages
This article was originally published on Electronicstalk on 27 Aug 2002 at 8.00am (UK)
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The primary, high-power DC/DC convertor generates a boosted output voltage up to 13V that is regulated within +/-1%.
The low-power BiCMOS control circuitry and the low on-resistance (0.35ohm) of the integrated MOSFET allows efficiency up to 93%.
The 1MHz current-mode PWM architecture provides fast transient response and allows use of ultrasmall inductors and ceramic capacitors.
Dual charge pumps independently regulate one positive output and one negative output.
These low-power outputs use external diode and capacitor stages to regulate output voltages up to +40 and -40V.
The MAX8726 is available in a space saving 16-pin TSSOP and operates over a -40 to +85C temperature range.
Prices start at $3.07 (1000-up, FOB USA).
A pre-assembled MAX8726 evaluation kit is available with recommended external components to reduce design time.
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