Specification	LTC3523EUD-2#PBF

Current - Output	400 mA, 600 mA
Frequency - Switching	2.4 MHz
Function	Step-Down, 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
Supplier Device Package	16-QFN (3x3)
Synchronous Rectifier	True
Topology	Boost, Buck
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	1.8 V
Voltage - Output (Max) [Max]	5.5 V
Voltage - Output (Min/Fixed)	0.615 V

LTC3523 Series

Synchronous 600mA Step-Up and 400mA Step-Down DC/DC Converters

Part	Voltage - Input (Min) [Min]	Voltage - Input (Max) [Max]	Output Configuration	Mounting Type	Function	Number of Outputs	Frequency - Switching	Output Type	Topology	Package / Case	Current - Output	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output (Max) [Max]	Voltage - Output (Min/Fixed)	Supplier Device Package
Analog Devices Inc./Maxim Integrated LTC3523EUD#TRPBF	1.8 V	5.5 V	Positive	Surface Mount	Step-Down Step-Up	2	1.2 MHz	Adjustable	Boost Buck	16-WFQFN Exposed Pad	400 mA 600 mA	85 C	-40 ¯C	5.5 V	0.615 V	16-QFN (3x3)
Analog Devices Inc./Maxim Integrated LTC3523EUD#PBF	1.8 V	5.5 V	Positive	Surface Mount	Step-Down Step-Up	2	1.2 MHz	Adjustable	Boost Buck	16-WFQFN Exposed Pad	400 mA 600 mA	85 C	-40 ¯C	5.5 V	0.615 V	16-QFN (3x3)
Analog Devices Inc./Maxim Integrated LTC3523EUD-2#PBF	1.8 V	5.5 V	Positive	Surface Mount	Step-Down Step-Up	2	2.4 MHz	Adjustable	Boost Buck	16-WFQFN Exposed Pad	400 mA 600 mA	85 C	-40 ¯C	5.5 V	0.615 V	16-QFN (3x3)
Analog Devices Inc./Maxim Integrated LTC3523EUD-2#TRPBF	1.8 V	5.5 V	Positive	Surface Mount	Step-Down Step-Up	2	2.4 MHz	Adjustable	Boost Buck	16-WFQFN Exposed Pad	400 mA 600 mA	85 C	-40 ¯C	5.5 V	0.615 V	16-QFN (3x3)

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$	Updated

Digikey	N/A	0	$ 4.76	1m+

Description

General part information

LTC3523 Series

The LTC3523/LTC3523-2 combine a 600mA step-up DC/DC converter with a 400mA synchronous step-down DC/DC converter in a tiny 3mm × 3mm package. The 1.2MHz/2.4MHz switching frequencies minimize the solution footprint while maintaining high efficiency. Both converters feature soft-start and internal compensation, simplifying the design.Both the step-up and step-down converters are current mode controlled and utilize an internal synchronous rectifier for high efficiency. The step-up supports 0% duty cycle operation and the step-down converter supports 100% duty cycle operation to extend battery run time. If the MODE pin is held high, both converters automatically transition between Burst Mode operation and PWM operation improving light load efficiency. Fixed, low noise 1.2MHz/2.4MHz PWM operation is selected when MODE is grounded.The LTC3523/LTC3523-2 provide a sub-2μA shutdown mode, overtemperature shutdown and current limit protection on both converters. The LTC3523/LTC3523-2 are housed in a 16-lead 3mm × 3mm × 0.75mm QFN package.ApplicationsDigital CamerasMedical InstrumentsIndustrial HandheldsGPS Navigators

Documents

Technical documentation and resources

LTC3523EUD-2#PBF | Datasheet

Datasheet

R415 Reliability Data

Reliability Data