R1810 Series
600 nA Low Quiescent Current Boost DC/DC Converter for Energy Harvester

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Description

R1810 Series is a boost DC/DC converter for electrical power storage devices, especially dedicated for 1 cell photovoltaic energy harvester since the start-up voltage is Typ. 0.35V.
This product can start up with only 9 µW, and applicable for charging 1 cell photovoltaic element. A system which is working under low-illuminance environment can be composed with the R1810 Series.

Key Benefits

  • Providing a low quiescent current (IQ_VOUT = Typ. 600 nA), and high efficiency (66%@ IOUT = 5 µA)
  • Start up with low input energy, 9 µW (low illuminance) is possible.
  • Maximum power point control function is built-in.

Spec

Standard
Input Voltage Range 0.35 V to 2.1 V (2.3 V)
Operating Temperature Range -40°C to 85°C (85°C)
Operating Quiescent Current Typ. 600 nA (Ta = 25°C, at no load))
Output Voltage Range 2.3 V to 4.5 V
Output Voltage Accuracy ±5% (Ta = 25°C)
Package WLCSP-15-P1, DFN2735-14
Start-up power 9 µW
Maximum Power Point Control Voltage Setting 0.2 V to 2.1 V, in 50 mV increments

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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

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

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

Search for similar products under conditions below.

Category:DC/DC Switching Regulators

Topology Boost
VIN
min (V)
0.35
VIN
max (V)
2.1
VOUT
min (V)
2.3
VOUT
max (V)
4.5
ISS
(µA)
0.6

Technical Documents

  • Typical Application

    Typical Application

    L = 22 µH, CIN = 22 µF, CCP = 22 nF, CREG = 4.7 µF, COUT = 4.7 µF

  • Efficiency vs. Output Current

    Efficiency vs. Output Current

    VIN = 0.5 V, VSET = 2.6 V

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Quality & Packages

  • 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.

FAQ

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