| Parameters | 
                                                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | SC-74A, SOT-753 | 
                                                                            
                                            | Surface Mount | YES | 
                                                                            
                                            | Operating Temperature | -40°C~85°C TA | 
                                                                            
                                            | Packaging | Tape & Reel (TR) | 
                                                                            
                                            | Pbfree Code | yes | 
                                                                            
                                            | Part Status | Not For New Designs | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 1  (Unlimited) | 
                                                                            
                                            | Number of Terminations | 5 | 
                                                                            
                                            | ECCN Code | EAR99 | 
                                                                            
                                            | Additional Feature | ALSO OPERATES AS PFM | 
                                                                            
                                            | Technology | CMOS | 
                                                                            
                                            | Terminal Position | DUAL | 
                                                                            
                                            | Terminal Form | GULL WING | 
                                                                            
                                            | Peak Reflow Temperature (Cel) | 260 | 
                                                                            
                                            | Terminal Pitch | 0.95mm | 
                                                                            
                                            | Time@Peak Reflow Temperature-Max (s) | 10 | 
                                                                            
                                            | JESD-30 Code | R-PDSO-G5 | 
                                                                            
                                            | Function | Step-Down | 
                                                                            
                                            | Number of Outputs | 1 | 
                                                                            
                                            | Output Voltage | 4.4V | 
                                                                            
                                            | Output Type | Transistor Driver | 
                                                                            
                                            | Input Voltage-Nom | 5.28V | 
                                                                            
                                            | Analog IC - Other Type | SWITCHING CONTROLLER | 
                                                                            
                                            | Output Configuration | Positive | 
                                                                            
                                            | Voltage - Supply (Vcc/Vdd) | 2.5V~16V | 
                                                                            
                                            | Control Features | Enable | 
                                                                            
                                            | Input Voltage (Min) | 2.5V | 
                                                                            
                                            | Topology | Buck | 
                                                                            
                                            | Output Current-Max | 0.05A | 
                                                                            
                                            | Frequency - Switching | 180kHz | 
                                                                            
                                            | Control Technique | PULSE WIDTH MODULATION | 
                                                                            
                                            | Synchronous Rectifier | No | 
                                                                            
                                            | Switcher Configuration | SINGLE | 
                                                                            
                                            | Duty Cycle (Max) | 100% | 
                                                                            
                                            | Length | 2.9mm | 
                                                                            
                                            | RoHS Status | RoHS Compliant | 
                                                                                                    
                            
                         
                                                S-8521B44MC-AUDT2G Overview
In the SC-74A, SOT-753 package, the switching controller meets most application requirements. For outputs of 1, this dc motor controller is suitable. Tape & Reel (TR) is the solid enclosure in which PMIC is packaged. A total of Transistor Driver dc switching's outputs can be handled by it. The supply and operating voltage of the dc control are 2.5V~16V. Suitable for a -40°C~85°C TA dc switcher. This switching controller can switch at 180kHz. The Surface Mount allows it to be used for dc dc regulator in general. To ensure efficient switching, this dcdc regulator features a Enable. SWITCHING CONTROLLER analog IC connects the switch converters. There are a terminal (s) on the switching converters that are designed at DUAL. 5 terminations with a variety of function. Some of the control techniques adapted by these dc dc converter ics include PULSE WIDTH MODULATION. A DC switcher's nominal voltage of 5.28V is input. dc dc voltage regulators should have a minimum input voltage of 2.5V. DC regulator outputs 4.4V voltage according to the test statistics. To better satisfy the need, DC to DC voltage regulator has a value of ALSO OPERATES AS PFM. 0.05A is the largest value switching converter	 outputs. 
S-8521B44MC-AUDT2G Features
Transistor Driver Outputs
Switching Frequency: 180kHz
Enable
PULSE WIDTH MODULATION
ALSO OPERATES AS PFM
S-8521B44MC-AUDT2G Applications
There are a lot of ABLIC U.S.A. Inc. S-8521B44MC-AUDT2G DC to DC converter applications. 
- Telecommunications equipment
- Smart grid
- Special machining machine tools
- Sink circuits
- Drilling machines
- Boring machines
- Post equipment 
- Digital precision reference circuits
- Automation technology
- Surface processing equipment