Datasheet Linear Technology LTC3612 — 数据表

制造商	Linear Technology
系列	LTC3612

3A，4MHz单片同步降压型DC / DC转换器

数据表

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PDF, 416 Kb, 语言: en, 文件上传: Sep 22, 2017, 页数: 30
3A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter

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价格

打包

	LTC3612EFE#PBF	LTC3612EFE#TRPBF	LTC3612EUDC#PBF	LTC3612EUDC#TRPBF	LTC3612HFE#PBF	LTC3612HFE#TRPBF	LTC3612HUDC#PBF	LTC3612HUDC#TRPBF	LTC3612IFE#PBF	LTC3612IFE#TRPBF	LTC3612IUDC#PBF	LTC3612IUDC#TRPBF	LTC3612MPFE#PBF	LTC3612MPFE#TRPBF	LTC3612MPUDC#PBF	LTC3612MPUDC#TRPBF
N	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
Package	TSSOP-20 包装外形图	TSSOP-20 包装外形图	3x4 QFN-20 包装外形图	3x4 QFN-20 包装外形图	TSSOP-20 包装外形图	TSSOP-20 包装外形图	3x4 QFN-20 包装外形图	3x4 QFN-20 包装外形图	TSSOP-20 包装外形图	TSSOP-20 包装外形图	3x4 QFN-20 包装外形图	3x4 QFN-20 包装外形图	TSSOP-20 包装外形图	TSSOP-20 包装外形图	3x4 QFN-20 包装外形图	3x4 QFN-20 包装外形图
Package Code	FE	FE	UDC	UDC	FE	FE	UDC	UDC	FE	FE	UDC	UDC	FE	FE	UDC	UDC
Package Index	05-08-1663 (CB)	05-08-1663 (CB)	05-08-1742	05-08-1742	05-08-1663 (CB)	05-08-1663 (CB)	05-08-1742	05-08-1742	05-08-1663 (CB)	05-08-1663 (CB)	05-08-1742	05-08-1742	05-08-1663 (CB)	05-08-1663 (CB)	05-08-1742	05-08-1742
Pin Count	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20

参数化

Parameters / Models	LTC3612EFE#PBF	LTC3612EFE#TRPBF	LTC3612EUDC#PBF	LTC3612EUDC#TRPBF	LTC3612HFE#PBF	LTC3612HFE#TRPBF	LTC3612HUDC#PBF	LTC3612HUDC#TRPBF	LTC3612IFE#PBF	LTC3612IFE#TRPBF	LTC3612IUDC#PBF	LTC3612IUDC#TRPBF	LTC3612MPFE#PBF	LTC3612MPFE#TRPBF	LTC3612MPUDC#PBF	LTC3612MPUDC#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	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	DC1310A,DC1574A	DC1310A,DC1574A	DC1310A,DC1574A	DC1310A,DC1574A	DC1310A,DC1574A	DC1310A,DC1574A	DC1310A,DC1574A	DC1310A,DC1574A	DC1310A,DC1574A	DC1310A,DC1574A	DC1310A,DC1574A	DC1310A,DC1574A	DC1310A,DC1574A	DC1310A,DC1574A	DC1310A,DC1574A	DC1310A,DC1574A
Design Tools	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File
Export Control	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Features	Burst Mode, DDR Mode, Active Voltage Positioning, 100% Duty Cycle	Burst Mode, DDR Mode, Active Voltage Positioning, 100% Duty Cycle	Burst Mode, DDR Mode, Active Voltage Positioning, 100% Duty Cycle	Burst Mode, DDR Mode, Active Voltage Positioning, 100% Duty Cycle	Burst Mode, DDR Mode, Active Voltage Positioning, 100% Duty Cycle	Burst Mode, DDR Mode, Active Voltage Positioning, 100% Duty Cycle	Burst Mode, DDR Mode, Active Voltage Positioning, 100% Duty Cycle	Burst Mode, DDR Mode, Active Voltage Positioning, 100% Duty Cycle	Burst Mode, DDR Mode, Active Voltage Positioning, 100% Duty Cycle	Burst Mode, DDR Mode, Active Voltage Positioning, 100% Duty Cycle	Burst Mode, DDR Mode, Active Voltage Positioning, 100% Duty Cycle	Burst Mode, DDR Mode, Active Voltage Positioning, 100% Duty Cycle	Burst Mode, DDR Mode, Active Voltage Positioning, 100% Duty Cycle	Burst Mode, DDR Mode, Active Voltage Positioning, 100% Duty Cycle	Burst Mode, DDR Mode, Active Voltage Positioning, 100% Duty Cycle	Burst Mode, DDR Mode, Active Voltage Positioning, 100% Duty Cycle
Frequency, kHz	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000
Frequency Adjust Range	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz
Frequency Sync Range	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz	Up to 4MHz
Integrated Inductor	no	no	no	no	no	no	no	no	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	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1
Isupply, mA	0.070	0.070	0.070	0.070	0.070	0.070	0.070	0.070	0.070	0.070	0.070	0.070	0.070	0.070	0.070	0.070
Max Phases	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Monolithic	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Number of Outputs	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	0 to 85	0 to 85	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-55 to 125	-55 to 125	-55 to 125	-55 to 125
Output Current, A	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
Polyphase	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Switch Current, A	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6
Synchronous	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Topology	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	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	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5
Vin Min, V	2.25	2.25	2.25	2.25	2.25	2.25	2.25	2.25	2.25	2.25	2.25	2.25	2.25	2.25	2.25	2.25
Vout Max, V	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5
Vout Maximum	Vin	Vin	Vin	Vin	Vin	Vin	Vin	Vin	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	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6
Vref Accuracy Over Temp, %	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5

生态计划

	LTC3612EFE#PBF	LTC3612EFE#TRPBF	LTC3612EUDC#PBF	LTC3612EUDC#TRPBF	LTC3612HFE#PBF	LTC3612HFE#TRPBF	LTC3612HUDC#PBF	LTC3612HUDC#TRPBF	LTC3612IFE#PBF	LTC3612IFE#TRPBF	LTC3612IUDC#PBF	LTC3612IUDC#TRPBF	LTC3612MPFE#PBF	LTC3612MPFE#TRPBF	LTC3612MPUDC#PBF	LTC3612MPUDC#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

文章

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Monolithic Synchronous Step-Down Regulator Sources 3A or Sinks 1.5A in TSSOP or 3mm × 4mm QFN &mdash LT Journal
PDF, 578 Kb, 档案已发布: Dec 1, 2009
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LвЂ‰DESIGN FEATURES Monolithic Synchronous Step-Down
Regulator Sources 3A or Sinks 1.5A
in TSSOP or 3mm Г— 4mm QFN
by Genesia Bertelle Introduction Design Versatility
Depending on the application requirements, a designer can either prioritize
light load efficiency or minimize supply noise by choosing from three light
load operating modes: Burst Mode
operation, pulse-skipping, or forced
continuous modes. Burst Mode operation provides high efficiency over
the entire load range by reducing gate
charge losses at light loads. Burst
Mode operation is an efficient solution
for low current applications, but in
some applications noise suppression
is a higher priority. Forced continuous
operation, though not as efficient as
Burst Mode operation at light loads,
maintains a constant switching frequency, making it easier to reduce
10 VIN
3.3V
SVIN
402k
100k RT_SYNC 12.1k …

模型线

系列: LTC3612 (16)

LTC3612EFE#PBF LTC3612EFE#TRPBF LTC3612EUDC#PBF LTC3612EUDC#TRPBF LTC3612HFE#PBF LTC3612HFE#TRPBF LTC3612HUDC#PBF LTC3612HUDC#TRPBF LTC3612IFE#PBF LTC3612IFE#TRPBF LTC3612IUDC#PBF LTC3612IUDC#TRPBF LTC3612MPFE#PBF LTC3612MPFE#TRPBF LTC3612MPUDC#PBF LTC3612MPUDC#TRPBF

制造商分类

Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | Internal Power Switch Buck
Power Management > Switching Regulator > DDR Memory/Bus Termination
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators