LTC3527EUD-1#PBF

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Analog Devices Inc./Maxim Integrated

SWITCHING VOLTAGE REGULATORS 2X 800MA/400MA, 1.2MHZ/2.2MHZ SYNC BOOST

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LTC3527EUD-1#PBF

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Analog Devices Inc./Maxim Integrated

SWITCHING VOLTAGE REGULATORS 2X 800MA/400MA, 1.2MHZ/2.2MHZ SYNC BOOST

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC3527 Series

The LTC3527/LTC3527-1 are dual high efficiency, step-up DC/DC converters in a space saving 16-lead 3mm × 3mm QFN package. Battery life is maximized with a 700mV startup voltage and operation down to 500mV once started. TheSHDNand PGOOD pins enable the converters to be sequenced or started together.The LTC3527/LTC3527-1 limit inrush current during startup. Selectable 1.2MHz or 2.2MHz operation provides a choice between the highest efficiency or smallest solution footprint. The current mode PWM design is internally compensated reducing external parts count. Burst Mode operation or fixed frequency operation is selectable via the MODE pin. Anti-ring circuitry reduces EMI in discontinuous mode. This device also features thermal shutdown.True output disconnect allows the output to be completely open in shutdown. The LTC3527-1 actively discharges VOUT1or VOUT2when its respectiveSHDNgoes low. Quiescent current in shutdown is less than 2μA.ApplicationsMP3/Personal Media PlayersNoise Canceling/Bluetooth HeadsetsWireless MicePortable Medical Instruments

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3527EUD-1#PBF

Current - Output (Switch) (Value 1)	400 mA
Current - Output (Switch) (Value 2)	800 mA
Frequency - Switching	2.2 MHz, 1.2 MHz
Function	Step-Up
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	16-WFQFN Exposed Pad
Package Length	3 mm
Package Name	16-QFN
Package Width	3 mm
Synchronous Rectifier	Yes
Topology	Boost
Voltage - Input (Max)	5 V
Voltage - Input (Min)	0.88 V
Voltage - Output (Max)	5.25 V
Voltage - Output (Min/Fixed)	1.6 V

LTC3527 Series

Dual 800mA/400mA, 1.2MHz/2.2MHz Synchronous Step-Up DC/DC Converters

Part	Voltage - Input (Max)	Frequency - Switching	Operating Temperature (Max)	Operating Temperature (Min)	Package / Case	Package Width	Package Name	Package Length	Output Type	Synchronous Rectifier	Voltage - Output (Min/Fixed)	Number of Outputs	Voltage - Input (Min)	Output Configuration	Voltage - Output (Max)	Function	Topology	Mounting Type	Current - Output (Switch) (Value 1)	Current - Output (Switch) (Value 2)
Analog Devices Inc./Maxim Integrated LTC3527EUD#PBF	5 V	1.2 MHz 2.2 MHz	85 °C	-40 °C	16-WFQFN Exposed Pad	3 mm	16-QFN	3 mm	Adjustable	Yes	1.6 V	2	0.88 V	Positive	5.25 V	Step-Up	Boost	Surface Mount	400 mA	800 mA
Analog Devices Inc./Maxim Integrated LTC3527EUD-1#PBF	5 V	1.2 MHz 2.2 MHz	85 °C	-40 °C	16-WFQFN Exposed Pad	3 mm	16-QFN	3 mm	Adjustable	Yes	1.6 V	2	0.88 V	Positive	5.25 V	Step-Up	Boost	Surface Mount	400 mA	800 mA
Analog Devices Inc./Maxim Integrated LTC3527EUD-1#PBF	5 V	1.2 MHz 2.2 MHz	85 °C	-40 °C	16-WFQFN Exposed Pad	3 mm	16-QFN	3 mm	Adjustable	Yes	1.6 V	2	0.88 V	Positive	5.25 V	Step-Up	Boost	Surface Mount	400 mA	800 mA
Analog Devices Inc./Maxim Integrated LTC3527EUD#TRPBF	5 V	1.2 MHz 2.2 MHz	85 °C	-40 °C	16-WFQFN Exposed Pad	3 mm	16-QFN	3 mm	Adjustable	Yes	1.6 V	2	0.88 V	Positive	5.25 V	Step-Up	Boost	Surface Mount	400 mA	800 mA
Analog Devices Inc./Maxim Integrated LTC3527EUD-1#TRPBF	5 V	1.2 MHz 2.2 MHz	85 °C	-40 °C	16-WFQFN Exposed Pad	3 mm	16-QFN	3 mm	Adjustable	Yes	1.6 V	2	0.88 V	Positive	5.25 V	Step-Up	Boost	Surface Mount	400 mA	800 mA

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R457 Reliability Data

LTC3527EUD-1#PBF | Datasheet