| Description & Applications | FEATURES • Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control • Regulated current sources with ±0.5% matching between any two outputs • High efficiency 3/2 boost function • Drives one, two, three or four white LEDs • 2.7V to 5.5V Input Voltage • Up to 80mA output current • Analog brightness control • Active-low or high shutdown input (’94/95) • Very small solution size and no inductor • 2.3µA (typ.) shutdown current • 325kHz switching frequency (min.) • Constant Frequency generates predictable noise spectrum • Standard Micro SMD-14 package: 2.08mmX2.403mmX0.845mm High • Thin Micro SMD-14 package: 2.08mmX2.403mm X0.600mm High Applications • White LED Display Backlights • White LED Keypad Backlights • 1-Cell Li-Ion battery-operated equipment including PDAs, hand-held PCs, cellular phones |