LTC3588-1 Nanopower Energy Harvesting Power Supply FEATURES DESCRIPTION n 950nA Input Quiescent Current (Output in The LTC 3588-1 integrates a low-loss full-wave bridge Regulation No Load) rectifier with a high efficiency buck converter to form a n 450nA Input Quiescent Current in UVLO complete energy harvesting solution optimized for high n 2.7V to 20V Input Operating Range output impedance energy sources such as piezoelectric, n Integrated Low-Loss Full-Wave Bridge Rectifier solar, or magnetic transducers. An ultralow quiescent n Up to 100mA of Output Current current undervoltage lockout (UVLO) mode with a wide n Selectable Output Voltages of 1.8V, 2.5V, 3.3V, 3.6V hysteresis window allows charge to accumulate on an input n High Efficiency Integrated Hysteretic Buck DC/DC capacitor until the buck converter can efficiently transfer a n Input Protective Shunt Up to 25mA Pull-Down at portion of the stored charge to the output. In regulation, V 20V the LTC3588-1 enters a sleep state in which both input and IN n Wide Input Undervoltage Lockout (UVLO) Range output quiescent currents are minimal. The buck converter n Available in 10-Lead MSE and 3mm 3mm DFN turns on and off as needed to maintain regulation. Packages Four output voltages, 1.8V, 2.5V, 3.3V and 3.6V, are pin selectable with up to 100mA of continuous output current APPLICATIONS however, the output capacitor may be sized to service a n higher output current burst. An input protective shunt set Piezoelectric Energy Harvesting n at 20V enables greater energy storage for a given amount Electro-Mechanical Energy Harvesting n of input capacitance. Wireless HVAC Sensors L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks n Mobile Asset Tracking of Linear Technology Corporation. All other trademarks are the property of their respective n owners. Tire Pressure Sensors n Battery Replacement for Industrial Sensors n Remote Light Switches n Standalone Nanopower Buck Regulator TYPICAL APPLICATION 100mA Piezoelectric Energy Harvesting Power Supply LTC3588-1 3.3V Regulator Start-Up Profile 22 C = 22F, C = 47F STORAGE OUT 20 NO LOAD, I = 2A VIN 18 MIDE V21BL 16 PZ1 PZ2 14 10H V IN V SW V IN OUT 12 LTC3588-1 1F 47F V OUT 10 6V 6V CAP PGOOD 8 C STORAGE 2 OUTPUT 25V V D0, D1 IN2 6 VOLTAGE GND V 4.7F SELECT OUT 4 6V 35881 TA01 2 PGOOD = LOGIC 1 0 0 200 400 600 TIME (s) 35881 TA01b 35881fc 1 For more information www.linear.com/LTC3588-1 VOLTAGE (V)LTC3588-1 ABSOLUTE MAXIMUM RATINGS (Note 1) V V ....................0.3V to Lesser of (V + 0.3V) or 6V IN OUT IN2 Low Impedance Source ....................... 0.3V to 18V* PGOOD .............. 0.3V to Lesser of (V + 0.3V) or 6V OUT Current Fed, I = 0A ...................................... 25mA I , I ............................................................. 50mA SW PZ1 PZ2 PZ1, PZ2 ...........................................................0V to V I ...................................................................... 350mA IN SW D0, D1 ..............0.3V to Lesser of (V + 0.3V) or 6V Operating Junction Temperature Range IN2 CAP ...................... Higher of 0.3V or (V 6V) to V (Notes 2, 3) ................................................40 to 125C IN IN V ................... 0.3V to Lesser of (V + 0.3V) or 6V Storage Temperature Range ......................65 to 150C IN2 IN Lead Temperature (Soldering, 10 sec) * V has an internal 20V clamp IN For t < 1ms and Duty Cycle < 1%, MSE Only ..........................................................300C Absolute Maximum Continuous Current = 5mA PIN CONFIGURATION TOP VIEW TOP VIEW PZ1 1 10 PGOOD 10 PGOOD PZ1 1 PZ2 2 9 D0 9 D0 PZ2 2 11 11 8 D1 CAP 3 8 D1 CAP 3 GND GND 7 V V 4 IN IN2 V 4 7 V IN IN2 6 V SW 5 OUT SW 5 6 V OUT MSE PACKAGE 10-LEAD PLASTIC eMSOP DD PACKAGE T = 125C, = 45C/W, = 10C/W JMAX JA JC 10-LEAD (3mm 3mm) PLASTIC DFN EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB T = 125C, = 43C/W, = 7.5C/W JMAX JA JC EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC3588EDD-1 PBF LTC3588EDD-1 TRPBF LFKY 10-Lead (3mm 3mm) Plastic DFN 40C to 125C LTC3588IDD-1 PBF LTC3588IDD-1 TRPBF LFKY 10-Lead (3mm 3mm) Plastic DFN 40C to 125C LTC3588EMSE-1 PBF LTC3588EMSE-1 TRPBF LTFKX 10-Lead Plastic eMSOP 40C to 125C LTC3588IMSE-1 PBF LTC3588IMSE-1 TRPBF LTFKX 10-Lead Plastic eMSOP 40C to 125C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: