LTC3388IMSE-3#TRPBF

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Analog Devices Inc./Maxim Integrated

20V HIGH EFFICIENCY NANOPOWER STEP-DOWN REGULATOR

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LTC3388IMSE-3#TRPBF

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Analog Devices Inc./Maxim Integrated

20V HIGH EFFICIENCY NANOPOWER STEP-DOWN REGULATOR

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC3388 Series

The LTC3388-1/LTC3388-3 are high efficiency step-down DC/DC converters with internal high side and synchronous power switches that draw only 720nA typical DC supply current at no load while maintaining output voltage regulation.Capable of supplying 50mA of load current, the LTC3388-1/LTC3388-3 also incorporate an accurate undervoltage lockout (UVLO) feature to disable the converter and maintain a low quiescent current state when the input voltage falls below 2.3V. In regulation, the LTC3388-1/LTC3388-3 enter a sleep state in which both input and output quiescent currents are minimal. The buck converter turns on and off as needed to maintain regulation. An additional standby mode disables buck switching while the output is in regulation for short duration loads requiring low ripple.Output voltages of 1.2V, 1.5V, 1.8V, 2.5V (LTC3388-1) and 2.8V, 3.0V, 3.3V, 5.0V (LTC3388-3) are pin selectable. The LTC3388-1/LTC3388-3 can operate with VINup to 20V while the no load quiescent current remains below 1μA.ApplicationsKeep Alive Power for Portable ProductsIndustrial Control SuppliesDistributed Power SystemsBattery-Operated Devices

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3388IMSE-3#TRPBF

Current - Output	50 mA
Function	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 Features	Exposed Pad
Package Length	0.118 in
Package Name	10-MSOP, 10-MSOP-EP
Package Width	3 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	20 V
Voltage - Input (Min)	2.7 V
Voltage - Output (Min/Fixed)	3.3 V, 3 V, 2.8 V, 5 V

LTC3388 Series

Part	Current - Output	Voltage - Input (Max)	Package / Case	Function	Voltage - Input (Min)	Number of Outputs	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Output (Min/Fixed)	Topology	Synchronous Rectifier	Mounting Type	Output Type	Output Configuration	Package Length	Package Name	Package Width	Package Features
Analog Devices Inc./Maxim Integrated LTC3388IDD-1#PBF	50 mA	20 V	10-WFDFN Exposed Pad	Step-Down	2.7 V	1	125 °C	-40 °C	1.2 V 1.5 V 1.8 V 2.5 V	Buck	Yes	Surface Mount	Programmable	Positive	3 mm	10-DFN	3 mm
Analog Devices Inc./Maxim Integrated LTC3388IMSE-3#TRPBF	50 mA	20 V		Step-Down	2.7 V	1	125 °C	-40 °C	2.8 V 3 V 3.3 V 5 V	Buck	Yes	Surface Mount	Programmable	Positive	0.118 in	10-MSOP 10-MSOP-EP	3 mm	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3388IMSE-3#PBF	50 mA	20 V		Step-Down	2.7 V	1	125 °C	-40 °C	2.8 V 3 V 3.3 V 5 V	Buck	Yes	Surface Mount	Programmable	Positive	0.118 in	10-MSOP 10-MSOP-EP	3 mm	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3388IMSE-1#TRPBF	50 mA	20 V		Step-Down	2.7 V	1	125 °C	-40 °C	1.2 V 1.5 V 1.8 V 2.5 V	Buck	Yes	Surface Mount	Programmable	Positive	0.118 in	10-MSOP 10-MSOP-EP	3 mm	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3388IDD-3#TRPBF	50 mA	20 V	10-WFDFN Exposed Pad	Step-Down	2.7 V	1	125 °C	-40 °C	2.8 V 3 V 3.3 V 5 V	Buck	Yes	Surface Mount	Programmable	Positive	3 mm	10-DFN	3 mm
Analog Devices Inc./Maxim Integrated LTC3388EMSE-1#TRPBF	50 mA	20 V		Step-Down	2.7 V	1	125 °C	-40 °C	1.2 V 1.5 V 1.8 V 2.5 V	Buck	Yes	Surface Mount	Programmable	Positive	0.118 in	10-MSOP 10-MSOP-EP	3 mm	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3388IMSE-1#PBF	50 mA	20 V		Step-Down	2.7 V	1	125 °C	-40 °C	1.2 V 1.5 V 1.8 V 2.5 V	Buck	Yes	Surface Mount	Programmable	Positive	0.118 in	10-MSOP 10-MSOP-EP	3 mm	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3388EMSE-3#PBF	50 mA	20 V		Step-Down	2.7 V	1	125 °C	-40 °C	2.8 V 3 V 3.3 V 5 V	Buck	Yes	Surface Mount	Programmable	Positive	0.118 in	10-MSOP 10-MSOP-EP	3 mm	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3388IDD-3#PBF	50 mA	20 V	10-WFDFN Exposed Pad	Step-Down	2.7 V	1	125 °C	-40 °C	2.8 V 3 V 3.3 V 5 V	Buck	Yes	Surface Mount	Programmable	Positive	3 mm	10-DFN	3 mm
Analog Devices Inc./Maxim Integrated LTC3388EMSE-3#TRPBF	50 mA	20 V		Step-Down	2.7 V	1	125 °C	-40 °C	2.8 V 3 V 3.3 V 5 V	Buck	Yes	Surface Mount	Programmable	Positive	0.118 in	10-MSOP 10-MSOP-EP	3 mm	Exposed Pad

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R526 Reliability Data

LTC3388IMSE-3#TRPBF | Datasheet

Tape and Reel Packaging