Part Number : LM3554
Function : Synchronous Boost Converter
Package : DSBG 16 Pin Type
Maker : Texas Instruments
Pinouts : 
Description :
The LM3554 is a 2MHz fixed frequency, current mode synchronous boost converter. The device is
designed to operate as a dual 600mA (1.2A total) constant-current driver for high-current white LEDs, or as a regulated 4.5V or 5V voltage source.
The dual high-side current sources allow for grounded cathode LED operation. An adaptive regulation method ensures the current source for each LED remains in regulation and maximizes efficiency.
Features
• Input Voltage: 2.5 V to 5.5 V
• Programmable 4.5-V or 5-V Constant Output Voltage
• Dual High-Side Current Sources
• Grounded Cathode Allowing for Better Heat Sinking and LED Routing
Datasheet PDF Download : 
Others datasheet of same file :
LM3554TME, LM3554TME/NOPB, LM3554TMX, LM3554TMX/NOPB
