LTC3588I-1

Part: Linear Technology LTC3588-1

Type: Nanopower Energy Harvesting Power Supply

Description: The LTC3588-1 is an energy harvesting power supply with a 2.7V to 20V input operating range, integrated low-loss full-wave bridge rectifier, and a high efficiency hysteretic buck converter, providing up to 100mA of output current at selectable voltages of 1.8V, 2.5V, 3.3V, or 3.6V.

Operating Conditions:

• Supply voltage: 2.7V to 20V
• Operating temperature: -40 to 125°C
• Selectable output voltages: 1.8V, 2.5V, 3.3V, 3.6V
• Max output current: 100mA

Absolute Maximum Ratings:

• Max supply voltage: 20V (internal clamp)
• Max continuous current: 100mA (available buck output current)
• Max junction/storage temperature: 125°C (junction)

Key Specs:

• Input Voltage Range (Low Impedance Source): Up to 18.0V
• V_IN Quiescent Current (UVLO): 450 nA (typ) at V_IN = 2.5V, Not PGOOD
• V_IN Quiescent Current (Buck Enabled, Sleeping): 950 nA (typ) at V_IN = 4.5V
• V_IN Shunt Regulator Voltage: 20 V (typ) at I_VIN = 1mA
• Maximum Protective Shunt Current: 25 mA (1ms Duration)
• Internal Bridge Rectifier Loss: 400 mV (typ) at I_BRIDGE = 10μA
• Available Buck Output Current: 100 mA (min)
• Output Quiescent Current: 89 nA (typ) at V_OUT = 3.6V

Features:

• 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

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

Package:

• 10-Lead (3mm × 3mm) Plastic DFN
• 10-Lead Plastic eMSOP

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

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

The l denotes the specifications which apply over the full operating junction temperature range, otherwise specifications are for T A = 25°C. (Note 2) V IN = 5.5V unless otherwise specified.

35881fc

• Low Impedance Source ....................... -0.3V to 18V*

• Current Fed, I SW = 0A......................................25mA †

• PZ1, PZ2...........................................................0V to V IN

• D0, D1..............-0.3V to [Lesser of (V IN2 + 0.3V) or 6V]

• CAP......................[Higher of -0.3V or (V IN - 6V)] to V IN

• V IN2 ................... -0.3V to [Lesser of (V IN + 0.3V) or 6V]

• VIN has an internal 20V clamp

† For t < 1ms and Duty Cycle < 1%, Absolute Maximum Continuous Current = 5mA

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