MAX8740 TFT-LCD Step-Up DC-DC Converter

The MAX8740 is a high-performance, Step-up DC-DC converter that provides a regulated supply voltage for active-matrix, thin-film Transistor (TFT), liquid-crystal Displays (LCDs). The MAX8740 incorporates currentmode, fixed-frequency, pulse-width modulation (PWM) circuitry with a built-in n-channel Power MOSFET to achieve high efficiency and fast transient response. Users CAN select 640kHz or 1.2MHz operation using a Logic input pin (FREQ). The high switching frequencies allow the use of ultra-small inductors and low-ESR ceramic capacitors. The current-mode architecture provides fast transient response to pulsed loads. A compensation pin (COMP) gives users flexibility in adjusting loop dynamics. The 30V internal MOSFET CAN generate output voltages up to 28V from a 2.6V and 5.5V input voltage range. Soft-start slowly ramps the input current and is programmed with an external capacitor. The MAX8740 is available in a 10-pin thin DFN package.
By Maxim Integrated Products
Part Manufacturer Description Datasheet Samples
MAX8740EUB+ Maxim Integrated Products Conv DC-DC Single Step Up 2.6V to 5.5V
MAX8740ETB-T Maxim Integrated Products IC 5.3 A SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, 0.80 MM HEIGHT, MO-229WEED-3, TDFN-10, Switching Regulator or Controller
MAX8740ETB Maxim Integrated Products IC 5.3 A SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, 0.80 MM HEIGHT, MO-229WEED-3, TDFN-10, Switching Regulator or Controller
MAX8740ETB+T Maxim Integrated Products IC SWITCHING REGULATOR, Switching Regulator or Controller
MAX8740ETB+ Maxim Integrated Products IC SWITCHING REGULATOR, Switching Regulator or Controller
MAX8740 's PackagesMAX8740 's pdf datasheet
MAX8740ETB QFN
MAX8740ETB-T QFN

MAX8740 pdf datasheet download


MAX8740 Pinout, Pinouts
MAX8740 pinout,Pin out
This is one package pinout of MAX8740,If you need more pinouts please download MAX8740's pdf datasheet.

MAX8740 Application circuits
MAX8740 circuits
This is one application circuit of MAX8740,If you need more circuits,please download MAX8740's pdf datasheet.


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