LM2704数据手册集成电路（IC）的LED驱动器规格书PDF

描述 Description

The LM2704 is a micropower step-up DC/DC in a small 5-lead SOT-23 package. A current limited, fixed off-time control scheme conserves operating current resulting in high efficiency over a wide range of load conditions. The 21V switch allows for output voltages as high as 20V. The low 400ns off-time permits the use of tiny, low profile inductors and capacitors to minimize footprint and cost in space-conscious portable applications. The LM2704 is ideal for LCD panels requiring low current and high efficiency as well as white LED applications for cellular phone back-lighting. The LM2704 can drive up to 8 white LEDs from a single Li‐Ion battery.

特性 Features

• 550mA, 0.7Ω, Internal Switch
• Uses Small Surface Mount Components
• Adjustable Output Voltage up to 20V
• 2.2V to 7V Input Range
• Input Undervoltage Lockout
• 0.01µA Shutdown Current
• Small 5-Lead SOT-23 Package