R1801 Series
Buck DC/DC Converter for Energy Harvester with Adjustable Maximum Power Point Control, Adjustable Output Voltage and PG Function
R1801 Series
Buck DC/DC Converter for Energy Harvester with Adjustable Maximum Power Point Control, Adjustable Output Voltage and PG Function
-
Description
R1801 is a power-storing buck DC/DC converter for a photovoltaic and vibration energy harvester. The Power Good (PG) function can output PG signal according to the output voltage facilitating to build a system.
A low operating quiescent current allows a harvester to be used under a low-illumination environment, and it is suitable for an equipment with low power supplied from a harvester.Key Benefits
- Providing a low power supply (IQ 200 nA) and a high efficiency (approximately 80%@10 µA).
- Monitoring the output voltage to output Power Good (PG) signal.
- Adjustable the output voltage and maximum power point control voltage in 100 mV step by the setting pins.
-
Spec
Consumer Input Voltage Range 2.3 V to 5.5 V (6.5 V) Operating Temperature Range -40°C to 85°C (125°C) Operating Quiescent Current Typ. 200 nA (Ta = 25°C, at no load) Output Voltage Range 2.3 V to 4.5 V Output Voltage Accuracy ±3% (Ta = 25°C) Package DFN(PL)2730-12 Starting Power 1 µW Functions Adjustable Maximum Power Point Control, Adjustable Output Voltage Protections / Functions
TSD ILX OCP OVP UVLO OVLO Reverse Shutdown Soft Start SSCG PGOOD Auto Discharge Anti-ringing Sequencing Max Duty Ext. Phase LED Adjust -
Technical
Documents-
Typical Application
-
Efficiency vs. Output Current
-
Related Links
-
-
Quality &
PackagesProduct Name Compatibility Package Marking Reliability R1801KxxxA-TR DFN(PL)2730-12 R1801K R1801K - Refer to the datasheets for the details on the product.
- The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
-
Sample / Buy
-
Buy Online
-
Buy, Request for Samples, Request for Information Materials
Authorized Distributors
Please contact your local distributors for any sales-related inquiry such as price, stock, delivery, etc.
-
Download Datasheet
Functional Description
TSD | Thermal Shutdown Function |
---|---|
ILX | LX Current Limit Function |
OCP | Overcurrent Protection |
OVP | Overvoltage Protection |
UVLO | Undervoltage Lockout Protection |
OVLO | Overvoltage Lockout Protection |
Reverse | Reverse Current Protection Circuit |
Shutdown | Shutdown Function |
Soft Start | Soft Start Function |
SSCG | Spread Spectrum Clock Generator Function |
PGOOD | Power Good Output |
Auto Discharge | Auto Discharge Function |
Anti-ringing | Anti-ringing Switch Function |
Sequencing | Start-up Sequencing Control |
Max Duty | Maximum Duty Cycle |
Ext. Phase | Externally Adjustable Phase Compensation |
LED Adjust | LED High-speed Dimming Control |