Integrated Circuits (ICs)

LT1339ISW#PBF

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Analog Devices

HIGH POWER SYNCHRONOUS DC/DC CONTROLLER

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DocumentsDatasheet R352 Reliability Data

Integrated Circuits (ICs)

LT1339ISW#PBF

Active

Analog Devices

HIGH POWER SYNCHRONOUS DC/DC CONTROLLER

Deep-Dive with AI

DocumentsDatasheet R352 Reliability Data

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LT1339ISW#PBF

Clock Sync	True
Control Features	Soft Start, Current Limit, Phase Control, Enable
Duty Cycle (Max) [Max]	90 %
Function	Step-Up, Step-Up/Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive, Isolation Capable
Output Phases	1
Output Type	Transistor Driver
Package / Case	20-SOIC
Package / Case [y]	0.295 in
Package / Case [y]	7.5 mm
Supplier Device Package	20-SO
Synchronous Rectifier	False
Topology	Forward Converter, Boost
Voltage - Supply (Vcc/Vdd) [Max]	20 V

LT1339 Series

High Power Synchronous DC/DC Controller

Part	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Function	Number of Outputs	Supplier Device Package	Duty Cycle (Max) [Max]	Output Configuration	Output Phases	Voltage - Supply (Vcc/Vdd) [Max]	Output Type	Package / Case	Package / Case [y]	Package / Case [y]	Topology	Control Features
Analog Devices LT1339ISW#TRPBF	85 °C	-40 °C	Surface Mount	Step-Up Step-Up/Step-Down	1	20-SO	90 %	Isolation Capable Positive	1	20 V	Transistor Driver	20-SOIC	0.295 in	7.5 mm	Boost Forward Converter	Current Limit Enable Phase Control Soft Start
Analog Devices LT1339CSW#TRPBF	70 °C	0 °C	Surface Mount	Step-Up Step-Up/Step-Down	1	20-SO	90 %	Isolation Capable Positive	1	20 V	Transistor Driver	20-SOIC	0.295 in	7.5 mm	Boost Forward Converter	Current Limit Enable Phase Control Soft Start
Analog Devices LT1339ISW#PBF	85 °C	-40 °C	Surface Mount	Step-Up Step-Up/Step-Down	1	20-SO	90 %	Isolation Capable Positive	1	20 V	Transistor Driver	20-SOIC	0.295 in	7.5 mm	Boost Forward Converter	Current Limit Enable Phase Control Soft Start

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	$ 20.50
		10	$ 14.93
		25	$ 13.50
		100	$ 11.90
		250	$ 11.13
		500	$ 10.80

Description

General part information

LT1339 Series

The LT1339 is a high power synchronous current mode switching regulator controller. The IC drives dual N-channel MOSFETs to create a single IC solution for high power DC/DC converters in applications up to 60V.The LT1339 incorporates programmable average current limiting, allowing accurate limiting of DC load current independent of inductor ripple current. The IC also incorporates user-adjustable slope compensation for minimization of magnetics at duty cycles up to 90%.The LT1339 timing oscillator operating frequency is programmable and can be synchronized up to 150kHz. Minimum off-time operation provides main switch protection. The IC also incorporates a soft start feature that is gated by both shutdown and undervoltage lockout conditions.An output phase reversal pin allows flexibility in configuration of converter types, including inverting and negative topologies.Applications48V Telecom Power SuppliesPersonal Computers and PeripheralsDistributed Power ConvertersIndustrial Control SystemsLead-Acid Battery Backup SystemsAutomotive and Heavy Equipment