LTC3388IDD-1#PBF

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Analog Devices

20V HIGH EFFICIENCY NANOPOWER STEP-DOWN REGULATOR

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LTC3388IDD-1#PBF

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Analog Devices

20V HIGH EFFICIENCY NANOPOWER STEP-DOWN REGULATOR

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DocumentsDatasheet R526 Reliability Data

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Technical Specifications

Parameters and characteristics for this part

Specification	LTC3388IDD-1#PBF

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 / Case	10-WFDFN Exposed Pad
Supplier Device Package	10-DFN (3x3)
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	20 V
Voltage - Input (Min) [Min]	2.7 V
Voltage - Output (Min/Fixed)	2.5 V, 1.5 V, 1.8 V, 1.2 V

LTC3388 Series

20V High Efficiency Nanopower Step-Down Regulator

Part	Operating Temperature [Min]	Operating Temperature [Max]	Supplier Device Package	Current - Output	Voltage - Output (Min/Fixed)	Voltage - Input (Max) [Max]	Output Configuration	Mounting Type	Output Type	Voltage - Input (Min) [Min]	Topology	Function	Number of Outputs	Package / Case	Package / Case
Analog Devices LTC3388IDD-1#PBF	-40 °C	125 ¯C	10-DFN (3x3)	50 mA	1.2 V 1.5 V 1.8 V 2.5 V	20 V	Positive	Surface Mount	Programmable	2.7 V	Buck	Step-Down	1	10-WFDFN Exposed Pad
Analog Devices LTC3388IMSE-3#TRPBF	-40 °C	125 ¯C	10-MSOP-EP	50 mA	2.8 V 3 V 3.3 V 5 V	20 V	Positive	Surface Mount	Programmable	2.7 V	Buck	Step-Down	1	10-MSOP 10-TFSOP Exposed Pad	0.118 in 3 Lead
Analog Devices LTC3388IMSE-3#PBF	-40 °C	125 ¯C	10-MSOP-EP	50 mA	2.8 V 3 V 3.3 V 5 V	20 V	Positive	Surface Mount	Programmable	2.7 V	Buck	Step-Down	1	10-MSOP 10-TFSOP Exposed Pad	0.118 in 3 Lead
Analog Devices LTC3388EDD-3#TRPBF	-40 °C	125 ¯C	10-DFN (3x3)	50 mA	2.8 V 3 V 3.3 V 5 V	20 V	Positive	Surface Mount	Programmable	2.7 V	Buck	Step-Down	1	10-WFDFN Exposed Pad
Analog Devices LTC3388EDD-1#TRPBF	-40 °C	125 ¯C	10-DFN (3x3)	50 mA	1.2 V 1.5 V 1.8 V 2.5 V	20 V	Positive	Surface Mount	Programmable	2.7 V	Buck	Step-Down	1	10-WFDFN Exposed Pad
Analog Devices LTC3388EDD-3#PBF	-40 °C	125 ¯C	10-DFN (3x3)	50 mA	2.8 V 3 V 3.3 V 5 V	20 V	Positive	Surface Mount	Programmable	2.7 V	Buck	Step-Down	1	10-WFDFN Exposed Pad

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 11.55
		10	$ 8.10
		25	$ 7.21

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