Analog Devices LTC3330

Overview

Topology	Buck-Boost Converter
Input voltage	1.8-5.5 V
Output 1	0.05 A
IC revision	C

Description

The LTC®3330 integrates a high voltage energy harvesting power supply plus a DC/DC converter powered by a primary cell battery to create a single output supply for alternative energy applications. The energy harvesting power supply, consisting of an integrated full-wave bridge rectifier and a high voltage buck converter, harvests energy from piezoelectric, solar, or magnetic sources. The primary cell input powers a buck-boost converter capable of operation down to 1.8V at its input. Either DC/DC converter can deliver energy to a single output. The buck operates when harvested energy is available, reducing the quiescent current draw on the battery to essentially zero, thereby extending the life of the battery. The buck-boost powers VOUT only when harvested energy goes away.

A low noise LDO post regulator and a supercapacitor balancer are also integrated, accommodating a wide range of output storage configurations. Voltage and current settings for both inputs and outputs are programmable via pin-strapped logic inputs. The LTC3330 is available in a 5mm × 5mm QFN-32 package.

Features

Dual Input, Single Output DC/DCs with Input Prioritizer
Energy Harvesting Input: 3.0V to 19V Buck DC/DC
Primary Cell Input: 1.8V to 5.5V Buck-Boost DC/DC
Zero Battery IQ When Energy Harvesting Source is Available
Ultralow Quiescent Current: 750nA at No-Load
Low Noise LDO Post Regulator
Integrated Supercapacitor Balancer
Up to 50mA of Output Current
Programmable DC/DC and LDO Output Voltages, Buck UVLO, and Buck-Boost Peak Input Current
Integrated Low Loss Full-Wave Bridge Rectifier
Input Protective Shunt: Up to 25mA at VIN ≥ 20V
5mm × 5mm QFN-32 Package

Remarks:

The buck is optimized to work with a 22μH inductor in typical applications.
Refer page num 23 for more inductor values.

Typical applications

Mobile Asset Tracking
Energy Harvesting
Solar Powered Systems with Primary Cell Backup
Security Devices
Wireless HVAC Sensors

More information

Products

Order Code	Datasheet	Simulation	Downloads	Status	Product series	L(µH)	I_R(A)	I_SAT(A)	f_res(MHz)	Mount
744031220	WE-TPC SMT Tiny Power Inductor, 22 µH, 0.51 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_3816 (rev1).igs \| 1.5 MB STP WE-TPC_3816 (rev1).stp \| 529.2 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance22 µH	Rated Current0.51 A	Saturation Current0.36 A	Self Resonant Frequency26 MHz	MountSMT
744031330	WE-TPC SMT Tiny Power Inductor, 33 µH, 0.42 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_3816 (rev1).igs \| 1.5 MB STP WE-TPC_3816 (rev1).stp \| 529.2 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance33 µH	Rated Current0.42 A	Saturation Current0.32 A	Self Resonant Frequency25 MHz	MountSMT
744031470	WE-TPC SMT Tiny Power Inductor, 47 µH, 0.39 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_3816 (rev1).igs \| 1.5 MB STP WE-TPC_3816 (rev1).stp \| 529.2 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance47 µH	Rated Current0.39 A	Saturation Current0.25 A	Self Resonant Frequency20 MHz	MountSMT
744031101	WE-TPC SMT Tiny Power Inductor, 100 µH, 0.25 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_3816 (rev1).igs \| 1.5 MB STP WE-TPC_3816 (rev1).stp \| 529.2 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance100 µH	Rated Current0.25 A	Saturation Current0.18 A	Self Resonant Frequency10 MHz	MountSMT
744042221	WE-TPC SMT Tiny Power Inductor, 220 µH, 0.2 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_4818 (rev1).igs \| 1.3 MB STP WE-TPC_4818 (rev1).stp \| 458 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance220 µH	Rated Current0.2 A	Saturation Current0.16 A	Self Resonant Frequency7 MHz	MountSMT
744042331	WE-TPC SMT Tiny Power Inductor, 330 µH, 0.15 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_4818 (rev1).igs \| 1.3 MB STP WE-TPC_4818 (rev1).stp \| 458 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance330 µH	Rated Current0.15 A	Saturation Current0.13 A	Self Resonant Frequency5.5 MHz	MountSMT
744043471	WE-TPC SMT Tiny Power Inductor, 470 µH, 0.24 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_4828 (rev1).igs \| 1.5 MB STP WE-TPC_4828 (rev1).stp \| 577.2 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance470 µH	Rated Current0.24 A	Saturation Current0.125 A	Self Resonant Frequency3 MHz	MountSMT
744043102	WE-TPC SMT Tiny Power Inductor, 1000 µH, 0.14 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_4828 (rev1).igs \| 1.5 MB STP WE-TPC_4828 (rev1).stp \| 577.2 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance1000 µH	Rated Current0.14 A	Saturation Current0.08 A	Self Resonant Frequency2.3 MHz	MountSMT

IC manufacturers (103)

Nanopower Buck-Boost DC/DC with Energy Harvesting Battery Life Extender