DESCRIPTION
The LED current can be programmed by the external current sense resistor, Rs. connected between the feedback pin (FB) and ground. A low 95mV feedback voltage reduces the power loss in the Rs for better efficiency. With its internal 2A. 100mΩ NMOS switch, the device can provide high efficiency even at heavy load. During the shutdown mode, the feedback resistor Rs and the load are completely disconnected and current consumption is reduced to less than 1uA. FEATURES
LED Power Efficiency: up tp 90% Current Accuracy: ±5%(VIN=3.6 to 1.8V @VF=3.7V) Low Start-Up voltage: 0.9V (ILED=270mA) Low Hold Voltage: 0.75V (ILED
