| Parameters | 
                                                                                                            
                                            | Output Isolation | Isolated | 
                                                                            
                                            | Voltage - Breakdown | 700V | 
                                                                            
                                            | Voltage - Start Up | 9.5V | 
                                                                            
                                            | Height | 1.75mm | 
                                                                            
                                            | Length | 4.9mm | 
                                                                            
                                            | Width | 3.91mm | 
                                                                            
                                            | Thickness | 1.58mm | 
                                                                            
                                            | RoHS Status | ROHS3 Compliant | 
                                                                            
                                            | Lead Free | Lead Free | 
                                                                            
                                            | Factory Lead Time | 12 Weeks | 
                                                                            
                                            | Lifecycle Status | ACTIVE (Last Updated: 2 days ago) | 
                                                                            
                                            | Contact Plating | Gold | 
                                                                            
                                            | Mount | Surface Mount | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 8-SOIC (0.154, 3.90mm Width), 7 Leads | 
                                                                            
                                            | Number of Pins | 7 | 
                                                                            
                                            | Operating Temperature | -40°C~125°C TJ | 
                                                                            
                                            | Packaging | Tape & Reel (TR) | 
                                                                            
                                            | Pbfree Code | yes | 
                                                                            
                                            | Part Status | Active | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 2  (1 Year) | 
                                                                            
                                            | Number of Terminations | 7 | 
                                                                            
                                            | ECCN Code | EAR99 | 
                                                                            
                                            | Max Power Dissipation | 12W | 
                                                                            
                                            | Terminal Position | DUAL | 
                                                                            
                                            | Terminal Form | GULL WING | 
                                                                            
                                            | Number of Functions | 1 | 
                                                                            
                                            | Base Part Number | UCC28911 | 
                                                                            
                                            | Number of Outputs | 1 | 
                                                                            
                                            | Efficiency | 75 % | 
                                                                            
                                            | Max Output Current | 1.26A | 
                                                                            
                                            | Input Voltage-Nom | 15V | 
                                                                            
                                            | Analog IC - Other Type | SWITCHING CONTROLLER | 
                                                                            
                                            | Voltage - Supply (Vcc/Vdd) | 6.5V~30V | 
                                                                            
                                            | Topology | Flyback | 
                                                                            
                                            | Min Input Voltage | 90V | 
                                                                            
                                            | Control Mode | CURRENT/VOLTAGE-MODE | 
                                                                            
                                            | Frequency - Switching | 420Hz~115kHz | 
                                                                            
                                            | Max Input Voltage | 265V | 
                                                                            
                                            | Control Technique | PULSE WIDTH MODULATION | 
                                                                            
                                            | Switcher Configuration | BUCK | 
                                                                            
                                            | Internal Switch(s) | Yes | 
                                                                            
                                            | Fault Protection | Current Limiting, Over Temperature, Over Voltage | 
                                                                                                    
                            
                         
                                                UCC28911DR Overview
In the 8-SOIC (0.154, 3.90mm Width), 7 Leads package, the ac to dc converter is embedded.Tape & Reel (TR) case is available for the ac dc converter.This AC/DC converter is mounted in the way of Surface Mount .To deliver its performance, the ac dc converter should be operated at a temperature of -40°C~125°C TJ .A SWITCHING CONTROLLER analog integrated circuit is used in this AC DC converter.Switching frequency reaches 420Hz~115kHz  Hz.As long as the supply voltage (Vcc/Vdd) is within the range of 6.5V~30V , the AC/DC converter may be used.In total, it has 7  terminations.In this ac/dc converter, there are 7  pins.The ac dc converters is suitable for mounting by Surface Mount .Based on the UCC28911 family, you can search for similar acdc converters.A total of 1 outputs need to be run.There is a possibility of powering the AC to DC converter under a voltage of 265V .An input voltage of less than 90V V is required to operate the AC to DC inverter.
UCC28911DR Features
Packaged with 8-SOIC (0.154, 3.90mm Width), 7 Leads
Switching Frequency at 420Hz~115kHz
With 7 pins
UCC28911DR Applications
There are a lot of Texas Instruments UCC28911DR AC DC Converters applications. 
- Lighting controls
- Laptops
- 3.3V power supplies
- Replaces linear transformers 
- Adapter/Charger for  Cordless Phones
- Wireless System
- Standby and Auxiliary Power Supplies Set Top Boxes (STB)
- Handheld/Battery-Powered Systems
- Universal Off-Line Power Supplies
- Power Adaptors