4个串联白光LED驱动器升压转换器APW7071

The APW7071 is a high frequency step-up DC/DC converter in a small 6-lead SOT-23 package specially designed to drive white LEDs with a constant current. The APW7071 can drive up to 4 LEDs in series from one Li-Ion cell. The APW7071 is ideal for LCD panels requiring low current and high efficiency as well as white LED applications for cellular phone back-lighting.

APW7071技术特性
·APW7071 2.5 V to 6V Input Voltage Range
· APW7071 400mA Internal Switch Current
· APW7071 Up to 1MHz Switching Frequency
·APW7071 70mA Typical No Load Quiescent Current
·APW7071  0.1mA Typical Shutdown Current
·APW7071  Internal Soft-Start
·APW7071  Up to 87% Efficiency
· APW7071 Operating Output Capacitor Down to 0.1mF
· Over Voltage Protection Included
· Lead Free and Green Devices Available(RoHS Compliant)

APW7071应用领域
· Cellar Phones White LED Back Light
· PDAs, Handheld Computers
· Digital Still Cameras
· MP3 Players
· GPS Receivers