MC34825EPR2 Overview
It is a part of the 20-UFQFN Exposed Pad package. This packaging has a Tape & Reel (TR)-shape, making it convenient to carry around. A reliable operation requires a temperature that is regulated to -40°C~85°C. It should work as long as you use a 2.7V~5.5VV power source. Among other things, it contains 20 terminations. 3.6V is the supply voltage that enables high efficiency. This number is part of the MC34825 family. 100mA supplies are available at the moment.
MC34825EPR2 Features

MC34825EPR2 Applications
There are a lot of NXP USA Inc.
MC34825EPR2 Controllers Interface ICs applications.

Dimmable LED Power Supply
Dimming Control Devices
Commercial LED Lighting
Smart LED Lighting
Portable Appliances
Battery-Operated Devices
Cellular Data Devices
Factory Automation and Process Controls
IrDA transmission control
Remote transmission formatter

Factory Lead Time	12 Weeks
Package / Case	20-UFQFN Exposed Pad
Surface Mount	YES
Operating Temperature	-40°C~85°C
Packaging	Tape & Reel (TR)
Published	2008
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Number of Terminations	20
ECCN Code	EAR99
HTS Code	8542.39.00.01
Voltage - Supply	2.7V~5.5V
Terminal Position	QUAD
Terminal Form	NO LEAD
Peak Reflow Temperature (Cel)	260
Supply Voltage	3.6V
Terminal Pitch	0.4mm
Time@Peak Reflow Temperature-Max (s)	40
Base Part Number	MC34825
JESD-30 Code	S-XQCC-N20
Function	Switch
Qualification Status	Not Qualified
Interface	I2C
Current - Supply	100mA
Protocol	USB
Supply Voltage1-Nom	3V
Standards	USB 2.0
Length	3mm
Height Seated (Max)	0.6mm
Width	3mm
RoHS Status	ROHS3 Compliant