AP4473

Preview

Ultra-Low Power Step-up DC-DC Converter

Ultra-Low Power Step-up DC-DC Converter

Preview

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
Preview
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