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AP4473

MP

Ultra-Low Power Step-up DC-DC Converter

Ultra-Low Power Step-up DC-DC Converter

MP

Description

The AP4473 is an ultra-low consumption power management chip that integrated a step-up DC-DC converter and hysteresis comparators. The AP4473 requires only 15mV (typical) input to start boosting using an external transformer. The AP4473 has hysteresis operation switch that can control the power supply for the external system (sensors, wireless modules, LEDs) while protecting external storage (capacitors), and the external system.
The AP4473 is ideally suited for energy harvesting. This provides a self-powered wireless sensor node with simple hardware design.

Key Features

  • Energy harvesting
A technology that extracts minute energy and converts it into electric power.
  • Suppressing current consumed by self
The biggest feature is that it consumes the smallest current

Applications

  •                                 ■Energy Harvesting 
・Wireless Sensor Node
・Wearable and Portable Device
■Example of Energy Harvester (several mW to several mW sources)
・Thermal

Specifications

Part Number 
AP4473
Startup voltage [V] 
0.015
Operation Voltage [V] 
Up to 0.5
Start output to external system [V] 
3.3
Stop output to external system [V] 
2.6
Over voltage protection [V] 
3.55
Other 

                                		
                            

                        
                            

                                
                                    Operating Temperature [℃]
                                
                                
                                    
-30 to 85

                                		
                            

                        
                            

                                
                                    Device Package
                                
                                
                                    
HWQFN

                                		
                            

                        
                            

                                
                                    Number of Pins
                                
                                
                                    
20

                                		
                            

                        
                    
                

            

            
            

                

                    

                        
Product Information

                    

                

                

                    
                        
                            

                                
                                    Part Status
                                
                                
                                    
MP

                                		
                            

                        
                            

                                
                                    Pb Free
                                
                                
                                    
Yes

                                		
                            

                        
                            

                                
                                    Halogen Free
                                
                                
                                    
Yes

                                		
                            

                        
                            

                                
                                    MSL
                                
                                
                                    
MSL2

                                		
                            

                        
                            

                                
                                    Packaging
                                
                                
                                    
TAPE

                                		
                            

                        
                            

                                
                                    JEDEC Standard Packaging
                                
                                
                                    
Compliant

                                		
                            

                        
                            

                                
                                    Minimum Order Quantity [pcs.]
                                
                                
                                    
1000

                                		
                            

                        
                            

                                
                                    Replacement P/N
                                
                                
                                    

                                		
                            

                        
                    
                

            

        

    
    
    
    
        

            
                

                    

                        
Block Diagram

                    

                

            
            
                

                    Block Diagram