LTC3221EDC#TRPBF

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Analog Devices Inc./Maxim Integrated

MICROPOWER, REGULATED CHARGE PUMP IN 2 X 2 DFN

LTC3221EDC#TRPBF

Active

Analog Devices Inc./Maxim Integrated

MICROPOWER, REGULATED CHARGE PUMP IN 2 X 2 DFN

Description Specifications Series Pricing CAD Documents

Description

General part information

LTC3221 Series

The LTC3221 family are micropower charge pump DC/DC converters that produce a regulated output at up to 60mA. The input voltage range is 1.8V to 5.5V. Extremely low operating current (8μA typical at no load) and low external parts count (one flying capacitor and two small bypass capacitors at VINand VOUT) make them ideally suited for small, battery-powered applications.The LTC3221 family includes fi xed 5V and 3.3V output versions plus an adjustable version. All parts operate as Burst Mode®switched capacitor voltage doublers to achieve ultralow quiescent current. The chips use a controlled current to supply the output and will survive a continuous short-circuit from VOUTto GND. The FB pin of the adjustable LTC3221 can be used to program the desired output voltage.The LTC3221 family is available in a low profile (0.75mm) 2mm × 2mm 6-pin DFN package.ApplicationsLow Power 2 AA Cell to 3.3V SupplyMemory Backup SuppliesTire Pressure SensorsGeneral Purpose Low Power Li-Ion to 5V SupplyRF TransmittersGlucose Meters

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3221EDC#TRPBF

Current - Output	60 mA
Frequency - Switching	600 kHz
Function	Step-Up
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	6-WFDFN Exposed Pad
Package Length	2 mm
Package Name	6-DFN
Package Width	2 mm
Synchronous Rectifier	No
Topology	Charge Pump
Voltage - Input (Max)	5.5 V
Voltage - Input (Min)	1.8 V
Voltage - Output (Max)	11 V
Voltage - Output (Min/Fixed)	1.23 V

LTC3221 Series

Part	Number of Outputs	Output Configuration	Voltage - Output (Min/Fixed)	Function	Output Type	Voltage - Input (Min)	Package Length	Package Name	Package Width	Operating Temperature (Max)	Operating Temperature (Min)	Synchronous Rectifier	Frequency - Switching	Topology	Voltage - Input (Max)	Package / Case	Current - Output	Mounting Type	Voltage - Output (Max)
Analog Devices Inc./Maxim Integrated LTC3221EDC-5#TRMPBF	1	Positive	5 V	Step-Up	Fixed	2.7 V	2 mm	6-DFN	2 mm	85 °C	-40 °C	No	600 kHz	Charge Pump	5.5 V	6-WFDFN Exposed Pad	60 mA	Surface Mount
Analog Devices Inc./Maxim Integrated LTC3221EDC#TRPBF	1	Positive	1.23 V	Step-Up	Adjustable	1.8 V	2 mm	6-DFN	2 mm	85 °C	-40 °C	No	600 kHz	Charge Pump	5.5 V	6-WFDFN Exposed Pad	60 mA	Surface Mount	11 V
Analog Devices Inc./Maxim Integrated LTC3221EDC#TRMPBF	1	Positive	1.23 V	Step-Up	Adjustable	1.8 V	2 mm	6-DFN	2 mm	85 °C	-40 °C	No	600 kHz	Charge Pump	5.5 V	6-WFDFN Exposed Pad	60 mA	Surface Mount	11 V
Analog Devices Inc./Maxim Integrated LTC3221EDC-3.3#TRMPBF	1	Positive	3.3 V	Step-Up	Fixed	1.8 V	2 mm	6-DFN	2 mm	85 °C	-40 °C	No	600 kHz	Charge Pump	4.4 V	6-WFDFN Exposed Pad	60 mA	Surface Mount
Analog Devices Inc./Maxim Integrated LTC3221EDC-3.3#TRPBF	1	Positive	3.3 V	Step-Up	Fixed	1.8 V	2 mm	6-DFN	2 mm	85 °C	-40 °C	No	600 kHz	Charge Pump	4.4 V	6-WFDFN Exposed Pad	60 mA	Surface Mount
Analog Devices Inc./Maxim Integrated LTC3221EDC-5#TRPBF	1	Positive	5 V	Step-Up	Fixed	2.7 V	2 mm	6-DFN	2 mm	85 °C	-40 °C	No	600 kHz	Charge Pump	5.5 V	6-WFDFN Exposed Pad	60 mA	Surface Mount

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LTC3221EDC#TRPBF | Datasheet

R415 Reliability Data