LTC3417AIDHC-1#PBF

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Analog Devices Inc./Maxim Integrated

DC/DC SWITCHING REGULATOR, SYNCHRONOUS BUCK, 2 OUTPUT, 2.25 TO 5.5V IN, 0.8 TO 5.5V/1.5/1A OUT

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LTC3417AIDHC-1#PBF

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Analog Devices Inc./Maxim Integrated

DC/DC SWITCHING REGULATOR, SYNCHRONOUS BUCK, 2 OUTPUT, 2.25 TO 5.5V IN, 0.8 TO 5.5V/1.5/1A OUT

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC3417 Series

The LTC3417A-1 is a dual constant frequency, synchronous step-down DC/DC converter. Intended for medium power applications, it operates from a 2.25V to 5.5V input voltage range and has a constant programmable switching frequency, allowing the use of tiny, low cost capacitors and inductors 2mm or less in height. Each output voltage is adjustable from 0.8V to 5V. Internal synchronous, low RDS(ON)power switches provide high efficiency without the need for external Schottky diodes.The open drainPORpin goes low when either output voltage falls 6% below regulation. The output will remain low 150ms longer than the duration of the out of regulation condition.A user selectable mode input allows the user to trade off ripple voltage for light load efficiency. Burst Mode operation provides high efficiency at light loads, while pulse skip mode provides low ripple noise at light loads. A phase mode pin allows the second channel to operate in-phase or 180° out-of-phase with respect to channel 1. Out-of-phase operation produces lower RMS current on VINand thus lower stress on the input capacitor.To further maximize battery life, the P-channel MOSFETs are turned on continuously in dropout (100% duty cycle) and both channels draw a total quiescent current of only 100μA. In shutdown, the device draws <1μA.FeaturesNotesLTC3417--LTC3417AImproved Channel Matching-LTC3417A-1Power On ResetRecommended For New DesignsLTC3417A-2Power GoodRecommended For New DesignsApplicationsGPS/Navigation SystemsAutomotive InstrumentationPC CardsIndustrial Power SuppliesGeneral Purpose Point of Load DC/DC

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3417AIDHC-1#PBF

Current - Output (Max)	1.5 A
Current - Output (Min)	1 A
Frequency - Switching (Max)	4 MHz
Frequency - Switching (Min)	600 kHz
Frequency - Switching (Typical)	1.5 MHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	16-WFDFN Exposed Pad
Package Length	5 mm
Package Name	16-DFN
Package Width	3 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	5.5 V
Voltage - Input (Min)	2.25 V
Voltage - Output (Max)	5 V
Voltage - Output (Min/Fixed)	0.8 V

LTC3417 Series

Dual Synchronous 1.5A/1A 4MHz Step-Down DC/DC Regulator with POR

Part	Synchronous Rectifier	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Output (Max)	Voltage - Input (Max)	Frequency - Switching (Max)	Frequency - Switching (Min)	Frequency - Switching (Typical)	Output Configuration	Package / Case	Mounting Type	Function	Current - Output (Max)	Current - Output (Min)	Package Width	Package Name	Package Length	Voltage - Input (Min)	Voltage - Output (Min/Fixed)	Topology	Output Type	Number of Outputs	Package Features
Analog Devices Inc./Maxim Integrated LTC3417AEDHC-1#PBF	Yes	85 °C	-40 °C	5 V	5.5 V	4 MHz	600 kHz	1.5 MHz	Positive	16-WFDFN Exposed Pad	Surface Mount	Step-Down	1.5 A	1 A	3 mm	16-DFN	5 mm	2.25 V	0.8 V	Buck	Adjustable	2
Analog Devices Inc./Maxim Integrated LTC3417AIDHC-1#TRPBF	Yes	125 °C	-40 °C	5 V	5.5 V	4 MHz	600 kHz	1.5 MHz	Positive	16-WFDFN Exposed Pad	Surface Mount	Step-Down	1.5 A	1 A	3 mm	16-DFN	5 mm	2.25 V	0.8 V	Buck	Adjustable	2
Analog Devices Inc./Maxim Integrated LTC3417EDHC#PBF	Yes	85 °C	-40 °C	5 V	5.5 V	4 MHz	600 kHz	1.5 MHz	Positive	16-WFDFN Exposed Pad	Surface Mount	Step-Down	1.4 A	800 mA	3 mm	16-DFN	5 mm	2.25 V	0.8 V	Buck	Adjustable	2
Analog Devices Inc./Maxim Integrated LTC3417EDHC#TRPBF	Yes	85 °C	-40 °C	5 V	5.5 V	4 MHz	600 kHz	1.5 MHz	Positive	16-WFDFN Exposed Pad	Surface Mount	Step-Down	1.4 A	800 mA	3 mm	16-DFN	5 mm	2.25 V	0.8 V	Buck	Adjustable	2
Analog Devices Inc./Maxim Integrated LTC3417AEDHC-2#PBF	Yes	85 °C	-40 °C	5 V	5.5 V	4 MHz	600 kHz	1.5 MHz	Positive	16-WFDFN Exposed Pad	Surface Mount	Step-Down	1.5 A	1 A	3 mm	16-DFN	5 mm	2.25 V	0.8 V	Buck	Adjustable	2
Analog Devices Inc./Maxim Integrated LTC3417EFE#PBF	Yes	85 °C	-40 °C	5 V	5.5 V	4 MHz	600 kHz	1.5 MHz	Positive		Surface Mount	Step-Down	1.4 A	800 mA	4.4 mm	20-TSSOP 20-TSSOP-EP	0.173 in	2.25 V	0.8 V	Buck	Adjustable	2	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3417AEDHC#TRPBF	Yes	85 °C	-40 °C	5 V	5.5 V	4 MHz	600 kHz	1.5 MHz	Positive	16-WFDFN Exposed Pad	Surface Mount	Step-Down	1.5 A	1 A	3 mm	16-DFN	5 mm	2.25 V	0.8 V	Buck	Adjustable	2
Analog Devices Inc./Maxim Integrated LTC3417AIFE#PBF	Yes	85 °C	-40 °C	5 V	5.5 V	4 MHz	600 kHz	1.5 MHz	Positive		Surface Mount	Step-Down	1.5 A	1 A	4.4 mm	20-TSSOP 20-TSSOP-EP	0.173 in	2.25 V	0.8 V	Buck	Adjustable	2	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3417EFE#TRPBF	Yes	85 °C	-40 °C	5 V	5.5 V	4 MHz	600 kHz	1.5 MHz	Positive		Surface Mount	Step-Down	1.4 A	800 mA	4.4 mm	20-TSSOP 20-TSSOP-EP	0.173 in	2.25 V	0.8 V	Buck	Adjustable	2	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3417AEDHC#PBF	Yes	85 °C	-40 °C	5 V	5.5 V	4 MHz	600 kHz	1.5 MHz	Positive	16-WFDFN Exposed Pad	Surface Mount	Step-Down	1.5 A	1 A	3 mm	16-DFN	5 mm	2.25 V	0.8 V	Buck	Adjustable	2

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LTC3417AIDHC-1#PBF | Datasheet

Technical Data Sheet EN

Product Change Notice EN

R457 Reliability Data