Datasheet Linear Technology LTC3619

Manufacturer	Linear Technology
Series	LTC3619

400mA/800mA Synchronous Step-Down DC/DC with Average Input Current Limit

Datasheets

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PDF, 512 Kb, Language: en, File uploaded: Sep 22, 2017, Pages: 22
400mA/800mA Synchronous Step-Down DC/DC with Average Input Current Limit

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Prices

Packaging

	LTC3619EDD#PBF	LTC3619EDD#TRPBF	LTC3619EMSE#PBF	LTC3619EMSE#TRPBF	LTC3619IDD#PBF	LTC3619IDD#TRPBF	LTC3619IMSE#PBF	LTC3619IMSE#TRPBF
N	1	2	3	4	5	6	7	8
Package	3x3 DFN-10 Package Outline Drawing	3x3 DFN-10 Package Outline Drawing	MS-10E Package Outline Drawing	MS-10E Package Outline Drawing	3x3 DFN-10 Package Outline Drawing	3x3 DFN-10 Package Outline Drawing	MS-10E Package Outline Drawing	MS-10E Package Outline Drawing
Package Code	DD	DD	MSE	MSE	DD	DD	MSE	MSE
Package Index	05-08-1699	05-08-1699	05-08-1664	05-08-1664	05-08-1699	05-08-1699	05-08-1664	05-08-1664
Pin Count	10	10	10	10	10	10	10	10

Parametrics

Parameters / Models	LTC3619EDD#PBF	LTC3619EDD#TRPBF	LTC3619EMSE#PBF	LTC3619EMSE#TRPBF	LTC3619IDD#PBF	LTC3619IDD#TRPBF	LTC3619IMSE#PBF	LTC3619IMSE#TRPBF
Architecture	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode
Demo Boards	DC1489A-A	DC1489A-A	DC1489A-A	DC1489A-A	DC1489A-A	DC1489A-A	DC1489A-A	DC1489A-A
Design Tools	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model
Export Control	no	no	no	no	no	no	no	no
Features	Programmable Input Current Limit, Burst Mode, Power Good, 100% Duty Cycle	Programmable Input Current Limit, Burst Mode, Power Good, 100% Duty Cycle	Programmable Input Current Limit, Burst Mode, Power Good, 100% Duty Cycle	Programmable Input Current Limit, Burst Mode, Power Good, 100% Duty Cycle	Programmable Input Current Limit, Burst Mode, Power Good, 100% Duty Cycle	Programmable Input Current Limit, Burst Mode, Power Good, 100% Duty Cycle	Programmable Input Current Limit, Burst Mode, Power Good, 100% Duty Cycle	Programmable Input Current Limit, Burst Mode, Power Good, 100% Duty Cycle
Frequency, kHz	2250	2250	2250	2250	2250	2250	2250	2250
Integrated Inductor	no	no	no	no	no	no	no	no
Ishutdown, µA	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1
Isupply, mA	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05
Max Phases	1	1	1	1	1	1	1	1
Monolithic	yes	yes	yes	yes	yes	yes	yes	yes
Number of Outputs	2	2	2	2	2	2	2	2
Operating Temperature Range, °C	0 to 85	0 to 85	0 to 85	0 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Output Current, A	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8
Output Current 2, A	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4
Polyphase	no	no	no	no	no	no	no	no
Switch Current, A	1.6	1.6	1.6	1.6	1.6	1.6	1.6	1.6
Switch Current 2, A	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8
Synchronous	yes	yes	yes	yes	yes	yes	yes	yes
Topology	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck
Topology 1	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck
Topology 2	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck
Vin Max, V	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5
Vin Min, V	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5
Vout Max, V	5	5	5	5	5	5	5	5
Vout Maximum	Vin	Vin	Vin	Vin	Vin	Vin	Vin	Vin
Vout Min, V	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6
Vout Min 2, V	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6
Vref Accuracy Over Temp, %	3	3	3	3	3	3	3	3

Eco Plan

	LTC3619EDD#PBF	LTC3619EDD#TRPBF	LTC3619EMSE#PBF	LTC3619EMSE#TRPBF	LTC3619IDD#PBF	LTC3619IDD#TRPBF	LTC3619IMSE#PBF	LTC3619IMSE#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Articles

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Choose a Regulator with an Accurate Input Current Limit to Safely Extract Maximum Power from USB &mdash LT Journal
PDF, 765 Kb, File published: Jun 30, 2010
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Choose a Regulator with an Accurate Input Current Limit to
Safely Extract Maximum Power from USB
Albert Lee Most of us would not use
a paintbrush to sign our
names on our checks. ItвЂ™s
simply the wrong tool for the
jobвЂ”wasting paint where a
thin line of ink offers better
results. Likewise, using
a power supply IC with a
broad-brush В±40% output
current limit is wasteful,
requiring a designer to leave
80% of the input current
on the table, or worse,
ignore the tolerance and risk
collapse of the input supply.
To design an input-currentlimited supply that maximizes
input power usage requires
a detailed approach, ideally
incorporating a regulator
with tight tolerances.
The LTC3619 and LTC3619B are 400mA and …

Model Line

Series: LTC3619 (8)

LTC3619EDD#PBF LTC3619EDD#TRPBF LTC3619EMSE#PBF LTC3619EMSE#TRPBF LTC3619IDD#PBF LTC3619IDD#TRPBF LTC3619IMSE#PBF LTC3619IMSE#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck | Micropower Buck Regulators | Internal Power Switch Buck
Power Management > Supercapacitor Chargers