LT3599EFE#TRPBF

Active

Analog Devices Inc./Maxim Integrated

LED DRIVER, DC / DC, BOOST, 2.1 MHZ, TSSOP-EP-28, 3.1 TO 30 V, -40 TO 125°C, SMD

LT3599EFE#TRPBF

Active

Analog Devices Inc./Maxim Integrated

LED DRIVER, DC / DC, BOOST, 2.1 MHZ, TSSOP-EP-28, 3.1 TO 30 V, -40 TO 125°C, SMD

Description Specifications Series Pricing CAD Documents

Description

General part information

LT3599 Series

The LT3599 is a fixed frequency 2A step-up DC/DC converter designed to drive four strings of 120mA LEDs up to a 44V output voltage. The switching frequency is programmable from 200kHz to 2.1MHz through an external resistor.LED dimming can be achieved with analog dimming on the CTRL pin, and with pulse width modulation dimming on the PWM pin. The LT3599 accurately regulates LED current even when the input voltage is higher than the LED output voltage.Additional features include programmable LED current derating, switching frequency synchronization to an external clock, LED string disable control,OPENLEDalert pin,SHORTLEDalert pins and programmable maximum output voltage when all LED strings are disconnected. The LT3599 is available in the thermally enhanced 32-pin (5mm × 5mm) QFN and 28-pin TSSOP packages.ApplicationsAutomotive Navigation TFT LCD DisplaysDesktop and Notebook TFT LCD Displays

Technical Specifications

Parameters and characteristics for this part

Specification	LT3599EFE#TRPBF

Current - Output / Channel	120 mA
Dimming	PWM, Analog
Frequency (Max)	2.1 MHz
Frequency (Min)	200 kHz
Internal Switch(s)	Yes
Mounting Type	Surface Mount
Number of Outputs	4
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Package Features	Exposed Pad
Package Length	0.173 in
Package Name	28-TSSOP, 28-TSSOP-EP
Package Width	4.4 mm
Topology	Step-Up (Boost)
Type	DC DC Regulator
Voltage - Output	44 V
Voltage - Supply (Max)	30 V
Voltage - Supply (Min)	2.7 V

LT3599 Series

Part	Topology	Internal Switch(s)	Package Width	Package Name	Package Length	Mounting Type	Dimming	Operating Temperature (Max)	Operating Temperature (Min)	Frequency (Min)	Frequency (Max)	Number of Outputs	Package / Case	Voltage - Output	Voltage - Supply (Min)	Type	Current - Output / Channel	Voltage - Supply (Max)	Package Features	Grade
Analog Devices Inc./Maxim Integrated LT3599IUH#PBF	Step-Up (Boost)	Yes	5 mm	32-QFN	5 mm	Surface Mount	Analog PWM	125 °C	-40 °C	200 kHz	2.1 MHz	4	32-WFQFN Exposed Pad	44 V	2.7 V	DC DC Regulator	120 mA	30 V
Analog Devices Inc./Maxim Integrated LT3599EUH#TRPBF	Step-Up (Boost)	Yes	5 mm	32-QFN	5 mm	Surface Mount	Analog PWM	125 °C	-40 °C	200 kHz	2.1 MHz	4	32-WFQFN Exposed Pad	44 V	2.7 V	DC DC Regulator	120 mA	30 V
Analog Devices Inc./Maxim Integrated LT3599IFE#TRPBF	Step-Up (Boost)	Yes	4.4 mm	28-TSSOP 28-TSSOP-EP	0.173 in	Surface Mount	Analog PWM	125 °C	-40 °C	200 kHz	2.1 MHz	4		44 V	2.7 V	DC DC Regulator	120 mA	30 V	Exposed Pad
Analog Devices Inc./Maxim Integrated LT3599EFE#PBF	Step-Up (Boost)	Yes	4.4 mm	28-TSSOP 28-TSSOP-EP	0.173 in	Surface Mount	Analog PWM	125 °C	-40 °C	200 kHz	2.1 MHz	4		44 V	2.7 V	DC DC Regulator	120 mA	30 V	Exposed Pad
Analog Devices Inc./Maxim Integrated LT3599HFE#TRPBF	Step-Up (Boost)	Yes	4.4 mm	28-TSSOP 28-TSSOP-EP	0.173 in	Surface Mount	Analog PWM	150 °C	-40 °C	200 kHz	2.1 MHz	4		44 V	2.7 V	DC DC Regulator	120 mA	30 V	Exposed Pad
Analog Devices Inc./Maxim Integrated LT3599EFE#TRPBF	Step-Up (Boost)	Yes	4.4 mm	28-TSSOP 28-TSSOP-EP	0.173 in	Surface Mount	Analog PWM	125 °C	-40 °C	200 kHz	2.1 MHz	4		44 V	2.7 V	DC DC Regulator	120 mA	30 V	Exposed Pad
Analog Devices Inc./Maxim Integrated LT3599HFE#PBF	Step-Up (Boost)	Yes	4.4 mm	28-TSSOP 28-TSSOP-EP	0.173 in	Surface Mount	Analog PWM	150 °C	-40 °C	200 kHz	2.1 MHz	4		44 V	2.7 V	DC DC Regulator	120 mA	30 V	Exposed Pad
Analog Devices Inc./Maxim Integrated LT3599EFE	Step-Up (Boost)	Yes	4.4 mm	28-TSSOP 28-TSSOP-EP	0.173 in	Surface Mount	Analog PWM	125 °C	-40 °C	200 kHz	2.1 MHz	4		44 V	2.7 V	DC DC Regulator	120 mA	30 V	Exposed Pad	Automotive
Analog Devices Inc./Maxim Integrated LT3599IFE#PBF	Step-Up (Boost)	Yes	4.4 mm	28-TSSOP 28-TSSOP-EP	0.173 in	Surface Mount	Analog PWM	125 °C	-40 °C	200 kHz	2.1 MHz	4		44 V	2.7 V	DC DC Regulator	120 mA	30 V	Exposed Pad
Analog Devices Inc./Maxim Integrated LT3599EUH#PBF	Step-Up (Boost)	Yes	5 mm	32-QFN	5 mm	Surface Mount	Analog PWM	125 °C	-40 °C	200 kHz	2.1 MHz	4	32-WFQFN Exposed Pad	44 V	2.7 V	DC DC Regulator	120 mA	30 V

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R518 Reliability Data

Package Drawing - 28-Lead TSSOP w/ EP

Datasheet