LT3580IDD#PBF

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Analog Devices Inc./Maxim Integrated

BOOST/INVERTING DC/DC CONVERTER WITH 2A SWITCH, SOFT-START, AND SYNCHRONIZATION

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LT3580IDD#PBF

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Analog Devices Inc./Maxim Integrated

BOOST/INVERTING DC/DC CONVERTER WITH 2A SWITCH, SOFT-START, AND SYNCHRONIZATION

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Description Specifications Series Pricing CAD Documents

Description

General part information

LT3580 Series

The LT3580 is a PWM DC/DC converter containing an internal 2A, 42V switch. The LT3580 can be configured as either a boost, SEPIC or inverting converter. Capable of generating 12V at 550mA or –12V at 350mA from a 5V input, the LT3580 is ideal for many local power supply designs.The LT3580 has an adjustable oscillator, set by a resistor from the RT pin to ground. Additionally, the LT3580 can be synchronized to an external clock. The free running or synchronized switching frequency range of the part can be set between 200kHz and 2.5MHz.The LT3580 also features innovativeSHDNpin circuitry that allows for slowly varying input signals and an adjustable undervoltage lockout function.Additional features such as frequency foldback and soft-start are integrated. The LT3580 is available in tiny 3mm × 3mm 8-lead DFN and 8-lead MSOP packages.ApplicationsVFD Bias SuppliesTFT-LCD Bias SuppliesGPS ReceiversDSL ModemsLocal Power Supply

Technical Specifications

Parameters and characteristics for this part

Specification	LT3580IDD#PBF

Current - Output	2 A
Frequency - Switching (Max)	2 MHz
Frequency - Switching (Min)	200 kHz
Function	Step-Up, Step-Up/Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive or Negative, Positive, Negative
Output Type	Adjustable
Package / Case	8-WFDFN Exposed Pad
Package Length	3 mm
Package Name	8-DFN
Package Width	3 mm
Synchronous Rectifier	No
Topology	SEPIC, Boost, Cuk
Voltage - Input (Max)	32 V
Voltage - Input (Min)	2.5 V
Voltage - Output (Max)	42 V
Voltage - Output (Min/Fixed)	5 V

LT3580 Series

Boost/Inverting DC/DC Converter with 2A Switch, Soft-Start, and Synchronization

Part	Package Length	Package Features	Package Name	Package Width	Output Configuration	Synchronous Rectifier	Operating Temperature (Min)	Operating Temperature (Max)	Voltage - Output (Min/Fixed)	Voltage - Input (Max)	Function	Frequency - Switching (Max)	Frequency - Switching (Min)	Current - Output	Voltage - Output (Max)	Voltage - Input (Min)	Number of Outputs	Topology	Output Type	Mounting Type	Package / Case	Utilized IC / Part	Voltage - Input (Minimum)	Voltage - Input (Maximum)	Contents	Total Output Count	Non-Isolated Output Count	Main Purpose	Voltage - Output	Regulator Topology	Frequency - Switching
Analog Devices Inc./Maxim Integrated LT3580MPMS8E#PBF	0.118 in	Exposed Pad	8-MSOP 8-MSOP-EP 8-TSSOP	3 mm	Negative Positive Positive or Negative	No	-55 °C	125 °C	5 V	32 V	Step-Up Step-Up/Step-Down	2 MHz	200 kHz	2 A	42 V	2.5 V	1	Boost Cuk SEPIC	Adjustable	Surface Mount
Analog Devices Inc./Maxim Integrated LT3580IMS8E#TRPBF	0.118 in	Exposed Pad	8-MSOP 8-MSOP-EP 8-TSSOP	3 mm	Negative Positive Positive or Negative	No	-40 °C	125 °C	5 V	32 V	Step-Up Step-Up/Step-Down	2 MHz	200 kHz	2 A	42 V	2.5 V	1	Boost Cuk SEPIC	Adjustable	Surface Mount
Analog Devices Inc./Maxim Integrated LT3580EMS8E#PBF	0.118 in	Exposed Pad	8-MSOP 8-MSOP-EP 8-TSSOP	3 mm	Negative Positive Positive or Negative	No	-40 °C	125 °C	5 V	32 V	Step-Up Step-Up/Step-Down	2 MHz	200 kHz	2 A	42 V	2.5 V	1	Boost Cuk SEPIC	Adjustable	Surface Mount
Analog Devices Inc./Maxim Integrated LT3580EDD#PBF	3 mm		8-DFN	3 mm	Negative Positive Positive or Negative	No	-40 °C	125 °C	5 V	32 V	Step-Up Step-Up/Step-Down	2 MHz	200 kHz	2 A	42 V	2.5 V	1	Boost Cuk SEPIC	Adjustable	Surface Mount	8-WFDFN Exposed Pad
Analog Devices Inc./Maxim Integrated LT3580IDD#PBF	3 mm		8-DFN	3 mm	Negative Positive Positive or Negative	No	-40 °C	125 °C	5 V	32 V	Step-Up Step-Up/Step-Down	2 MHz	200 kHz	2 A	42 V	2.5 V	1	Boost Cuk SEPIC	Adjustable	Surface Mount	8-WFDFN Exposed Pad
Analog Devices Inc./Maxim Integrated LT3580EDD#TRPBF	3 mm		8-DFN	3 mm	Negative Positive Positive or Negative	No	-40 °C	125 °C	5 V	32 V	Step-Up Step-Up/Step-Down	2 MHz	200 kHz	2 A	42 V	2.5 V	1	Boost Cuk SEPIC	Adjustable	Surface Mount	8-WFDFN Exposed Pad
Analog Devices Inc./Maxim Integrated LT3580HMS8E#TRPBF	0.118 in	Exposed Pad	8-MSOP 8-MSOP-EP 8-TSSOP	3 mm	Negative Positive Positive or Negative	No	-40 °C	150 °C	5 V	32 V	Step-Up Step-Up/Step-Down	2 MHz	200 kHz	2 A	42 V	2.5 V	1	Boost Cuk SEPIC	Adjustable	Surface Mount
Analog Devices Inc./Maxim Integrated DC1144A-B														350 mA					Non-Isolated			LT3580	5 V	12 V	Board	1	1 count	DC/DC Negative Inverter	-12 V	Inverting	2 MHz
Analog Devices Inc./Maxim Integrated LT3580IMS8E#PBF	0.118 in	Exposed Pad	8-MSOP 8-MSOP-EP 8-TSSOP	3 mm	Negative Positive Positive or Negative	No	-40 °C	125 °C	5 V	32 V	Step-Up Step-Up/Step-Down	2 MHz	200 kHz	2 A	42 V	2.5 V	1	Boost Cuk SEPIC	Adjustable	Surface Mount
Analog Devices Inc./Maxim Integrated LT3580HMS8E#PBF	0.118 in	Exposed Pad	8-MSOP 8-MSOP-EP 8-TSSOP	3 mm	Negative Positive Positive or Negative	No	-40 °C	150 °C	5 V	32 V	Step-Up Step-Up/Step-Down	2 MHz	200 kHz	2 A	42 V	2.5 V	1	Boost Cuk SEPIC	Adjustable	Surface Mount

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LT3580IDD#PBF | Datasheet

R530 Reliability Data