一级代理MP1519是一个 1x, 1.5x, 2x High Efficiency Charge Pump 4 White LED Driver，其采用QFN-16的引脚封装
具体规格如下：
Description
The MP1519 is a fully automatic driver for powering four white LEDs, with up to 4V forward voltage, from a single Li-Ion or three NiMH cells. The driver performs all of the sensing and control to run the LEDs at an optimum charge pump ratio for efficiency without an expensive inductor. The driver allows PWM operation to support brightness control. The tiny 3mm x 3mm QFN16 package and ***all external capacitors allow for the most compact white LED solution ***ailable.
Features
• 2% LED Current Matching
• High Efficiency (>93%)
• Current Source Outputs
• No Ballast Resistors Required
• 1x, 1.5x and 2x Automatic Modes
• C***tant Frequency Operation
• Automatic LED Detection
• High and Low Frequency PWM Capability
• 2.5V to 5.5V Operation
• Less than 1μA Leakage during Shutdown
• Detects Changes in Battery Level
• No External Schottky Diode Required
• Soft-Start and Soft Switching Operation
• High Efficiency (>93%)
• Current Source Outputs
• No Ballast Resistors Required
• 1x, 1.5x and 2x Automatic Modes
• C***tant Frequency Operation
• Automatic LED Detection
• High and Low Frequency PWM Capability
• 2.5V to 5.5V Operation
• Less than 1μA Leakage during Shutdown
• Detects Changes in Battery Level
• No External Schottky Diode Required
• Soft-Start and Soft Switching Operation
APPLICATI***
• Cell Phones
• PDA or Hand Held Computers
• White LED Application at 3.6V Supply
• Cell Phones
• PDA or Hand Held Computers
• White LED Application at 3.6V Supply
型号：MP1519DQ-LF-Z
厂家：MPS
封装：QFN-16
批号：12+
应用：蜂窝电话、掌上电脑、学习机、数码相机