Evaluation Kit for the MAX8753 (MAX8753EVKIT) (MAX8753EVKIT)
The MAX8753 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that generates the voltages required for active-matrix, thin-film transistor (TFT) liquid-crystal displays (LCDs). The EV kit contains a pulse-width-modulated (PWM) setp-up switching regulator (VMAIN), positive and negative charge-pump regulators (OUTP and OUTN) for the TFT gate drive, and a low-voltage linear regulator (OUTL).
The EV kit operates from a +2.6V to +5.5V (VIN) DC supply voltage. The step-up regulator switches at 1MHz and is configured for a +9V output capable of providing 160mA with a +3V input. The positive and negative charge pumps are configured for +24V and -11V, respectively, and are both capable of providing 20mA. The linear voltage regulator (LDO) is configured to provide a regulated +2.5V output with a maximum 300mA load.
The MAX8753 EV kit features low quiescent current and high conversion efficiency (90%). Operation at 1MHz allows the use of small surface-mount components. The MAX8753 TQFN package (0.8mm max) with low-profile external components allows the circuit to be less than 1.2mm high.
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