LTC1522IS8#PBF

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Analog Devices Inc./Maxim Integrated

MICROPOWER, REGULATED 5V CHARGE PUMP DC/DC CONVERTER

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LTC1522IS8#PBF

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Analog Devices Inc./Maxim Integrated

MICROPOWER, REGULATED 5V CHARGE PUMP DC/DC CONVERTER

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC1522 Series

The LTC1522 is a micropower charge pump DC/DC converter that produces a regulated 5V output from a 2.7V to 5V input supply. Extremely low supply current (6µA typical with no load, <1µA in shutdown) and low external parts count (one 0.22µF flying capacitor and two 10µF capacitors at VINand VOUT) make the LTC1522 ideally suited for small, light load battery-powered applications. Typical efficiency (VIN= 3V) exceeds 75% with load currents between 50µA and 20mA. Modulating the SHDN pin keeps the typical efficiency above 75% with load currents all the way down to 10µA.The LTC1522 has thermal shutdown and can survive a continuous short from VOUTto GND. In shutdown the load is disconnected from VIN. The part is available in 8-pin MSOP and SO packages. The LTC1522 is pin compatible with the LTC1516 in applications where VIN≥ 2.7V and IOUT≤ 20mA.ApplicationsSIM Interface Supplies for GSM Cellular TelephonesLi-Ion Battery Backup SuppliesLocal 3V to 5V ConversionSmart Card ReadersPCMCIA Local 5V Supplies

Technical Specifications

Parameters and characteristics for this part

Specification	LTC1522IS8#PBF

Current - Output	20 mA
Frequency - Switching	700 kHz
Function	Step-Up
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	70 °C
Operating Temperature (Min)	0 °C
Output Configuration	Positive
Output Type	Fixed
Package Length	0.154 in
Package Name	8-SO, 8-SOIC
Package Width	3.9 mm
Synchronous Rectifier	No
Topology	Charge Pump
Voltage - Input (Max)	5 V
Voltage - Input (Min)	2.7 V
Voltage - Output (Min/Fixed)	5 V

LTC1522 Series

Micropower, Regulated 5V Charge Pump DC/DC Converter

Part	Operating Temperature (Max)	Function	Voltage - Input (Min)	Number of Outputs	Package Length	Package Name	Package Width	Voltage - Input (Max)	Frequency - Switching	Synchronous Rectifier	Current - Output	Topology	Output Configuration	Mounting Type	Voltage - Output (Min/Fixed)	Output Type
Analog Devices Inc./Maxim Integrated LTC1522CS8#TRPBF	70 °C	Step-Up	2.7 V	1	0.154 in	8-SO 8-SOIC	3.9 mm	5 V	700 kHz	No	20 mA	Charge Pump	Positive	Surface Mount	5 V	Fixed
Analog Devices Inc./Maxim Integrated LTC1522IS8#PBF	70 °C	Step-Up	2.7 V	1	0.154 in	8-SO 8-SOIC	3.9 mm	5 V	700 kHz	No	20 mA	Charge Pump	Positive	Surface Mount	5 V	Fixed
Analog Devices Inc./Maxim Integrated LTC1522CS8#PBF	70 °C	Step-Up	2.7 V	1	0.154 in	8-SO 8-SOIC	3.9 mm	5 V	700 kHz	No	20 mA	Charge Pump	Positive	Surface Mount	5 V	Fixed
Analog Devices Inc./Maxim Integrated LTC1522CMS8#TRPBF	70 °C	Step-Up	2.7 V	1	0.118 in	8-MSOP 8-TSSOP 8-MSOP	3 mm	5 V	700 kHz	No	20 mA	Charge Pump	Positive	Surface Mount	5 V	Fixed
Analog Devices Inc./Maxim Integrated LTC1522IS8#TRPBF	70 °C	Step-Up	2.7 V	1	0.154 in	8-SO 8-SOIC	3.9 mm	5 V	700 kHz	No	20 mA	Charge Pump	Positive	Surface Mount	5 V	Fixed
Analog Devices Inc./Maxim Integrated LTC1522CMS8#PBF	70 °C	Step-Up	2.7 V	1	0.118 in	8-MSOP 8-TSSOP 8-MSOP	3 mm	5 V	700 kHz	No	20 mA	Charge Pump	Positive	Surface Mount	5 V	Fixed
Analog Devices Inc./Maxim Integrated LTC1522CS8#TRPBF	70 °C	Step-Up	2.7 V	1	0.154 in	8-SO 8-SOIC	3.9 mm	5 V	700 kHz	No	20 mA	Charge Pump	Positive	Surface Mount	5 V	Fixed

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LTC1522IS8#PBF | Datasheet

R302 Reliability Data