Datasheet Linear Technology LTC3619B — 数据表

制造商	Linear Technology
系列	LTC3619B

具有平均输入电流限制的400mA / 800mA同步降压DC / DC

数据表

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PDF, 519 Kb, 语言: en, 文件上传: Sep 22, 2017, 页数: 20
400mA/800mA Synchronous Step-Down DC/DC with Average Input Current Limit

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	LTC3619BEDD#PBF	LTC3619BEDD#TRPBF	LTC3619BEMSE#PBF	LTC3619BEMSE#TRPBF	LTC3619BIDD#PBF	LTC3619BIDD#TRPBF	LTC3619BIMSE#PBF	LTC3619BIMSE#TRPBF
N	1	2	3	4	5	6	7	8
Package	3x3 DFN-10 包装外形图	3x3 DFN-10 包装外形图	MS-10E 包装外形图	MS-10E 包装外形图	3x3 DFN-10 包装外形图	3x3 DFN-10 包装外形图	MS-10E 包装外形图	MS-10E 包装外形图
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

参数化

Parameters / Models	LTC3619BEDD#PBF	LTC3619BEDD#TRPBF	LTC3619BEMSE#PBF	LTC3619BEMSE#TRPBF	LTC3619BIDD#PBF	LTC3619BIDD#TRPBF	LTC3619BIMSE#PBF	LTC3619BIMSE#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-B	DC1489A-B	DC1489A-B	DC1489A-B	DC1489A-B	DC1489A-B	DC1489A-B	DC1489A-B
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File
Export Control	no	no	no	no	no	no	no	no
Features	Programmable Input Current Limit, Power Good, 100% Duty Cycle	Programmable Input Current Limit, Power Good, 100% Duty Cycle	Programmable Input Current Limit, Power Good, 100% Duty Cycle	Programmable Input Current Limit, Power Good, 100% Duty Cycle	Programmable Input Current Limit, Power Good, 100% Duty Cycle	Programmable Input Current Limit, Power Good, 100% Duty Cycle	Programmable Input Current Limit, Power Good, 100% Duty Cycle	Programmable Input Current Limit, 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	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6
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	2.4	2.4	2.4	2.4	2.4	2.4	2.4	2.4
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

生态计划

	LTC3619BEDD#PBF	LTC3619BEDD#TRPBF	LTC3619BEMSE#PBF	LTC3619BEMSE#TRPBF	LTC3619BIDD#PBF	LTC3619BIDD#TRPBF	LTC3619BIMSE#PBF	LTC3619BIMSE#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

文章

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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, 档案已发布: 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 …

模型线

系列: LTC3619B (8)

LTC3619BEDD#PBF LTC3619BEDD#TRPBF LTC3619BEMSE#PBF LTC3619BEMSE#TRPBF LTC3619BIDD#PBF LTC3619BIDD#TRPBF LTC3619BIMSE#PBF LTC3619BIMSE#TRPBF

制造商分类

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