onsemi CAT3606HV4-T2

Switched Capacitor (Charge Pump) 30mA 6 QFN SMD mount，glue mount 4mm*4mm*730μm

LED DRVR 6Segment 3.3V/5V 16-Pin TQFN EP T/R

LED Driver, Charge Pump, 6-Channel

IC LED DRV RGLTR PWM 30MA 16TQFN

IC LED DRVR WHITE BCKLGT 16-TQFN

The CAT3606 controls up to four LEDs for the main display and two LEDs for the sub-display in cellular phones. The device is capable of operating in either 1x (LDO) mode or 1.5x charge pump mode. All LED pin currents are regulated and tightly matched to achieve uniformity of brightness across the LCD backlight. An external resistor (RSET) sets the nominal output current. The device can deliver as much as 20mA per channel during low voltage operation (3V) and 30mA per channel during nominal operation (3.3V). A constant high-frequency switching scheme (1MHz) provides low noise and allows the use of very small value ceramic capacitors. A zero quiescent current mode can be achieved via the chip enable pin EN. The Main and Sub LEDs each have their own dedicated ON/OFF control pins (ENM ENS). Dimming can be achieved using either a DC voltage to control the RSET pin current or by applying a PWM signal on the ENM and ENS pins. The device is available in a 16-pad TQFN package with a max height of 0.8mm.