AP4473

Preview

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

AP4473

Description

Key Features

Applications

Specifications

Product Information

Block Diagram