The AME5130 is a fixed off-time step-up DC/DC converterin a small 5-lead SOT-25 package.The AME5130is ideal for LCD panels requiring low current and high efficiencyas well as LED applications for cellular phone backlighting,PDAS,and other hand-held devices. The low400ns off-time allows the use of tiny external components.AME5130 can drive up 8 white LEDs from a single Li-Ion battery DC 2V to 5.5V; can be turned on by puttingmore than 1V at pin 4(EN). To control LED brightness,the LED current can be pulsed by applying a PWM (pulsewidth modulated) signal with a frequency range of 100Hzto 50KHz to the EN pin.
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