LTC3335EUDC#PBF

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Analog Devices Inc./Maxim Integrated

CONV DC-DC 1.8V TO 5.5V SYNCHRONOUS STEP DOWN/SYNCHRONOUS STEP UP SINGLE-OUT 1.8V 0.05A 20-PIN QFN EP TUBE

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LTC3335EUDC#PBF

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Analog Devices Inc./Maxim Integrated

CONV DC-DC 1.8V TO 5.5V SYNCHRONOUS STEP DOWN/SYNCHRONOUS STEP UP SINGLE-OUT 1.8V 0.05A 20-PIN QFN EP TUBE

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC3335 Series

The LTC3335 is a high efficiency, low quiescent current (680nA) buck-boost DC/DC converter with an integrated precision coulomb counter which monitors accumulated battery discharge in long life battery powered applications. The buck-boost can operate down to 1.8V on its input and provides eight pin-selectable output voltages with up to 50mA of output current.The coulomb counter stores the accumulated battery discharge in an internal register accessible via an I2C interface. The LTC3335 features a programmable discharge alarm threshold. When the threshold is reached, an interrupt is generated at theIRQpin.To accommodate a wide range of battery types and sizes, the peak input current can be selected from as low as 5mA to as high as 250mA and the full-scale coulomb counter has a programmable range of 32,768:1.The LTC3335 is available in a 3mm × 4mm QFN-20 package.ApplicationsLong Lifetime Primary Cell Battery ApplicationsWireless SensorsRemote MonitorsDust Networks®SmartMesh®Applications

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3335EUDC#PBF

Current - Output	50 mA
Function	Step-Up, Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Programmable
Package / Case	20-WFQFN Exposed Pad
Package Length	3 mm
Package Name	20-QFN
Package Width	4 mm
Synchronous Rectifier	Yes
Topology	Buck-Boost
Voltage - Input (Max)	5.5 V
Voltage - Input (Min)	1.8 V
Voltage - Output (Max)	5 V
Voltage - Output (Min/Fixed)	1.8 V

LTC3335 Series

Nanopower Buck-Boost DC/DC with Integrated Coulomb Counter

Part	Mounting Type	Voltage - Output (Max)	Package Length	Package Name	Package Width	Output Type	Operating Temperature (Max)	Operating Temperature (Min)	Topology	Number of Outputs	Package / Case	Current - Output	Function	Voltage - Input (Max)	Synchronous Rectifier	Voltage - Input (Min)	Output Configuration	Voltage - Output (Min/Fixed)
Analog Devices Inc./Maxim Integrated LTC3335IUDC#TRPBF	Surface Mount	5 V	3 mm	20-QFN	4 mm	Programmable	125 °C	-40 °C	Buck-Boost	1	20-WFQFN Exposed Pad	50 mA	Step-Down Step-Up	5.5 V	Yes	1.8 V	Positive	1.8 V
Analog Devices Inc./Maxim Integrated LTC3335IUDC#PBF	Surface Mount	5 V	3 mm	20-QFN	4 mm	Programmable	125 °C	-40 °C	Buck-Boost	1	20-WFQFN Exposed Pad	50 mA	Step-Down Step-Up	5.5 V	Yes	1.8 V	Positive	1.8 V
Analog Devices Inc./Maxim Integrated LTC3335EUDC#TRPBF	Surface Mount	5 V	3 mm	20-QFN	4 mm	Programmable	125 °C	-40 °C	Buck-Boost	1	20-WFQFN Exposed Pad	50 mA	Step-Down Step-Up	5.5 V	Yes	1.8 V	Positive	1.8 V
Analog Devices Inc./Maxim Integrated LTC3335EUDC#PBF	Surface Mount	5 V	3 mm	20-QFN	4 mm	Programmable	125 °C	-40 °C	Buck-Boost	1	20-WFQFN Exposed Pad	50 mA	Step-Down Step-Up	5.5 V	Yes	1.8 V	Positive	1.8 V

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LTC3335EUDC#PBF | Datasheet