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R1800 Series
144 nA Low Quiescent Current Buck DCDC Converter for Energy Harvester

Product Specifications

R1800 is a power-storing buck DC/DC converter for a photovoltaic and vibration energy harvester. 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.

  • Providing a low operating quiescent current (IQ 144nA) and a high efficiency (approximately 90%@10 μA).
  • A Control function that enables a maximum power optimizes a power supply from an energy harvester.

FEATURES

Input Voltage Range (Maximum Rating) 2.0 V to 5.5 V (6.5V)
Operating Quiescent Current (IQ) Typ.144 nA (Ta = 25°C, at no load)
Output Voltage Range 2.0 V to 4.5 V (Settable in 0.1 V step)
Output Voltage Accuracy ±3.0%
Minimum Starting Power 720 nW
Accuracy of Maximum Power Voltage 200 mV
Protection Features Reverse Current Protection (VIN ≥ 2.0 V)
Package DFN(PLP)2730-12

APPLICATION INFORMATION

L: 22 µH, CIN : 10 µF COUT : 47 µF

TYPICAL CHARACTERISTICS

Efficiency vs. Output Current VSET = 3.3 V

PIN DESCRIPTION

DFN(PLP)2730-12

DFN(PLP)2730-123.0 mm × 2.7 mm
1 AGND
2 TEST1
3 TEST2
4 VM
5 NC
6 NC
7 VFB
8 PGND
9,10 LX
11,12 VIN

*) The tab on the bottom of the package enhances thermal performance and is electrically connected to GND (substrate level). It is recommended that the tab be connected to the ground plane on the board, or otherwise be left floating.


R1800 Series for Consumer

APPLICATIONS

  • Energy harvesting module of a photovoltaic and vibration energy harvester

PRODUCT LONGEVITY PROGRAM

R1800 series operate PRODUCT LONGEVITY PROGRAM.
This program has been introduced to help customers select the most appropriate part for applications that require long life cycles.


SELECTION GUIDE

The set output voltage and set maximum power voltage are user-selectable options.

Product Name   Package Quantity per Reel
R1800KxxxA-TR ConsumterPLP DFN(PLP)2730-12 5,000
  • xxx …Select the ideal combination of the set output voltage (VSET) and the set maximum power voltage (VMPSET) from the code number starting from 002.
    Output voltage: 2.0 V to 4.5 V in 0.1 V step
    Maximum power voltage: 2.0 V to 5.3 V in 0.1 V step

DOCUMENT/CONTACT

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Technical Support

Package *1 Marking Reliability *2
DFN(PLP)2730-12 R1800K R1800K

*1: The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and land pattern (foot pattern).
*2: Reliability file includes a reliability test report and a reflow profile.

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