Overview

Features and Benefits

  • 950nA Input Quiescent Current (Output in Regulation – No Load)
  • 450nA Input Quiescent Current in UVLO
  • 2.7V to 20V Input Operating Range
  • Integrated Low-Loss Full-Wave Bridge Rectifier
  • Up to 100mA of Output Current
  • Selectable Output Voltages of 1.8V, 2.5V, 3.3V, 3.6V
  • High Efficiency Integrated Hysteretic Buck DC/DC
  • Input Protective Shunt – Up to 25mA Pull-Down at VIN ≥ 20V
  • Wide Input Undervoltage Lockout (UVLO) Range
  • Available in 10-Lead MSE and 3mm × 3mm DFN Packages

Product Details

The LTC3588-1 integrates a low-loss full-wave bridge rectifier with a high efficiency buck converter to form a complete energy harvesting solution optimized for high output impedance energy sources such as piezoelectric, solar, or magnetic transducers. An ultralow quiescent current undervoltage lockout (UVLO) mode with a wide hysteresis window allows charge to accumulate on an input capacitor until the buck converter can efficiently transfer a portion of the stored charge to the output. In regulation, the LTC3588-1 enters a sleep state in which both input and output quiescent currents are minimal. The buck converter turns on and off as needed to maintain regulation.

Four output voltages, 1.8V, 2.5V, 3.3V and 3.6V, are pin selectable with up to 100mA of continuous output current; however, the output capacitor may be sized to service a higher output current burst. An input protective shunt set at 20V enables greater energy storage for a given amount of input capacitance.

Output Voltage (Switcher) UVLO Quiescent Current
LTC3588-1 Selectable 1.8V, 2.5V, 3.3V or 3.6V

4.04V(Rising)

2.87V(Falling)

950nA (No Load)

450nA (UVLO)

LTC3588-2 Selectable 3.45V, 4.1V, 4.5V or 5V

16V(Rising)

14V(Falling)

1,500nA (No Load)

830nA (UVLO)


Applications

  • Piezoelectric Energy Harvesting
  • Electro-Mechanical Energy Harvesting
  • Wireless HVAC Sensors
  • Mobile Asset Tracking
  • Tire Pressure Sensors
  • Battery Replacement for Industrial Sensors
  • Remote Light Switches
  • Standalone Nanopower Buck Regulator

Product Categories

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (3)

Tools & Simulations

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Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

LTspice

Models for the following parts are available in LTspice:

LTC3588-1
LTC3588-2

Product Recommendations

LTC3588-1 Companion Parts

Recommended Related Parts

Design Resources

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PCN-PDN Information

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.