Integrated Circuits (ICs)

LT1619EMS8#PBF

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Analog Devices

CURRENT MODE PWM CONTROLLER 1.5A 360KHZ 8-PIN MSOP TUBE

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Integrated Circuits (ICs)

LT1619EMS8#PBF

Active

Analog Devices

CURRENT MODE PWM CONTROLLER 1.5A 360KHZ 8-PIN MSOP TUBE

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DocumentsDatasheet R389 Reliability Data

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LT1619EMS8#PBF

Clock Sync	True
Control Features	Enable
Duty Cycle (Max) [Max]	92 %
Frequency - Switching	300 kHz
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	8-MSOP, 8-TSSOP
Package / Case	3 mm
Package / Case [custom]	0.118 in
Supplier Device Package	8-MSOP
Synchronous Rectifier	False
Topology	Cuk, SEPIC, Boost, Flyback
Voltage - Supply (Vcc/Vdd) [Max]	18 V
Voltage - Supply (Vcc/Vdd) [Min]	1.9 V

LT1619 Series

Low Voltage Current Mode PWM Controller

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

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	$ 8.19
		10	$ 5.62
		25	$ 4.96
		100	$ 4.21
		250	$ 3.85
		500	$ 3.63
		1000	$ 3.45
		2500	$ 3.31

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