Integrated Circuits (ICs)

LT1619ES8#PBF

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Analog Devices Inc./Maxim Integrated

LOW VOLTAGE CURRENT MODE PWM CONTROLLER

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DocumentsR389 Reliability Data Datasheet

Integrated Circuits (ICs)

LT1619ES8#PBF

Active

Analog Devices Inc./Maxim Integrated

LOW VOLTAGE CURRENT MODE PWM CONTROLLER

Deep-Dive with AI

DocumentsR389 Reliability Data Datasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LT1619ES8#PBF

Clock Sync	True
Control Features	Enable
Duty Cycle (Max) [Max]	92 %
Frequency - Switching	300 kHz
Function	Step-Up/Step-Down, Step-Up
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 C
Operating Temperature [Min]	-40 ¯C
Output Configuration	Isolation Capable, Positive
Output Phases	1
Output Type	Transistor Driver
Package / Case	0.154 in
Package / Case	8-SOIC
Package / Case	3.9 mm
Supplier Device Package	8-SO
Synchronous Rectifier	False
Topology	Boost, Cuk, Flyback, SEPIC
Voltage - Supply (Vcc/Vdd) [Max]	18 V
Voltage - Supply (Vcc/Vdd) [Min]	1.9 V

LT1619 Series

Part	Package / Case	Package / Case	Package / Case	Topology	Number of Outputs	Operating Temperature [Max]	Operating Temperature [Min]	Function	Frequency - Switching	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Output Type	Supplier Device Package	Control Features	Duty Cycle (Max) [Max]	Output Configuration	Mounting Type	Output Phases	Package / Case
Analog Devices Inc./Maxim Integrated LT1619ES8#PBF	0.154 in	8-SOIC	3.9 mm	Boost Cuk Flyback SEPIC	1	85 C	-40 ¯C	Step-Up Step-Up/Step-Down	300 kHz	18 V	1.9 V	Transistor Driver	8-SO	Enable	92 %	Isolation Capable Positive	Surface Mount	1
Analog Devices Inc./Maxim Integrated LT1619EMS8#TRPBF		8-MSOP 8-TSSOP		Boost Cuk Flyback SEPIC	1	85 C	-40 ¯C	Step-Up Step-Up/Step-Down	300 kHz	18 V	1.9 V	Transistor Driver	8-MSOP	Enable	92 %	Isolation Capable Positive	Surface Mount	1	0.118 in 3 mm Width
Analog Devices Inc./Maxim Integrated LT1619EMS8#PBF		8-MSOP 8-TSSOP		Boost Cuk Flyback SEPIC	1	85 C	-40 ¯C	Step-Up Step-Up/Step-Down	300 kHz	18 V	1.9 V	Transistor Driver	8-MSOP	Enable	92 %	Isolation Capable Positive	Surface Mount	1	0.118 in 3 mm Width
Analog Devices Inc./Maxim Integrated LT1619ES8#TRPBF	0.154 in	8-SOIC	3.9 mm	Boost Cuk Flyback SEPIC	1	85 C	-40 ¯C	Step-Up Step-Up/Step-Down	300 kHz	18 V	1.9 V	Transistor Driver	8-SO	Enable	92 %	Isolation Capable Positive	Surface Mount	1

Pricing

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

Distributor	Package	Quantity	$	Updated

Digikey	N/A	3433	$ 6.46	1m+
	Tube	1	$ 7.90	1m+
		10	$ 5.41
		25	$ 4.77
		100	$ 4.05
		250	$ 3.70
		500	$ 3.49
		1000	$ 3.31
		2500	$ 3.16

Description

General part information

LT1619 Series

The LT1619 is a fixed frequency PWM controller for implementing current mode DC/DC converters with minimum external parts. The LT1619 operates with input voltages ranging from 1.9V to 18V and is suitable for a variety of battery-powered and distributed DC/DC converters. The internal rail-to-rail N-channel MOSFET driver operates either from the input in the non-bootstrapped mode or from the output in bootstrapped operation. The driver is designed to drive a low side power transistor in boost, SEPIC, flyback and other topologies.Converter efficiency is improved at heavy loads with a 53mV current sense voltage and at light load with Burst Mode operation. The operating frequency is internally setat 300kHz. The oscillator can also be synchronized externally up to 500kHz. No load quiescent current is 140µA and shutdown current is 15µA.The LT1619 is available in 8-lead MSOP and SO packages.Applications3.3V to 5V DC/DC ConvertersDistributed Power SuppliesIsolated Power Supplies