| Parameters | 
                                                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 10-SOP (0.154, 3.90mm Width) | 
                                                                            
                                            | Operating Temperature | -40°C~150°C TJ | 
                                                                            
                                            | Series | VIPER™ | 
                                                                            
                                            | Part Status | Active | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 1  (Unlimited) | 
                                                                            
                                            | Power (Watts) | 13W | 
                                                                            
                                            | Analog IC - Other Type | SWITCHING CONTROLLER | 
                                                                            
                                            | Voltage - Supply (Vcc/Vdd) | 4.5V~30V | 
                                                                            
                                            | Topology | Flyback | 
                                                                            
                                            | Frequency - Switching | 60kHz | 
                                                                            
                                            | Internal Switch(s) | Yes | 
                                                                            
                                            | Fault Protection | Current Limiting, Over Temperature, Over Voltage | 
                                                                            
                                            | Duty Cycle | 80% | 
                                                                            
                                            | Output Isolation | Isolated | 
                                                                            
                                            | Voltage - Breakdown | 730V | 
                                                                            
                                            | Voltage - Start Up | 30V | 
                                                                            
                                            | RoHS Status | ROHS3 Compliant | 
                                                                                                    
                            
                         
                                                VIPER222LSTR Overview
It is embedded in package 10-SOP (0.154, 3.90mm Width) .It is mounted in the way of Surface Mount .Ideally, the ac dc converter should be operated at a temperature of -40°C~150°C TJ  degrees Celsius.Analog ICs of type SWITCHING CONTROLLER are used in this AC DC converter.As soon as the switching frequency reaches 60kHz , the circuit is closed.As long as the supply voltage (Vcc/Vdd) is within the range of 4.5V~30V , the AC/DC converter may be used.This AC to DC converter belongs to the VIPER?  manufacturer family.
VIPER222LSTR Features
Packaged with 10-SOP (0.154, 3.90mm Width)
Switching Frequency at 60kHz
VIPER222LSTR Applications
There are a lot of STMicroelectronics VIPER222LSTR AC DC Converters applications. 
- Z-Wave
- Small off-line low voltage power supplies
- Adapters
- Standby and Auxiliary Power Supplies 
- Portable Apparatus
- Chargers for cell/cordless phones
- IoT Applications
- Set-top boxes
- RCC SMPS
- Automotive Telematics