Datasheet Linear Technology LTC3646-1

Manufacturer	Linear Technology
Series	LTC3646-1

40V, 1A Synchronous Step-Down Converter

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PDF, 596 Kb, Language: en, File uploaded: Sep 22, 2017, Pages: 28
40V, 1A Synchronous Step-Down Converter

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Packaging

	LTC3646EDE-1#PBF	LTC3646EDE-1#TRPBF	LTC3646EMSE-1#PBF	LTC3646EMSE-1#TRPBF	LTC3646HDE-1#PBF	LTC3646HDE-1#TRPBF	LTC3646HMSE-1#PBF	LTC3646HMSE-1#TRPBF	LTC3646IDE-1#PBF	LTC3646IDE-1#TRPBF	LTC3646IMSE-1#PBF	LTC3646IMSE-1#TRPBF
N	1	2	3	4	5	6	7	8	9	10	11	12
Package	4x3 DFN-14 Package Outline Drawing	4x3 DFN-14 Package Outline Drawing	MS-16E Package Outline Drawing	MS-16E Package Outline Drawing	4x3 DFN-14 Package Outline Drawing	4x3 DFN-14 Package Outline Drawing	MS-16E Package Outline Drawing	MS-16E Package Outline Drawing	4x3 DFN-14 Package Outline Drawing	4x3 DFN-14 Package Outline Drawing	MS-16E Package Outline Drawing	MS-16E Package Outline Drawing
Package Code	DE	DE	MSE	MSE	DE	DE	MSE	MSE	DE	DE	MSE	MSE
Package Index	05-08-1708	05-08-1708	05-08-1667	05-08-1667	05-08-1708	05-08-1708	05-08-1667	05-08-1667	05-08-1708	05-08-1708	05-08-1667	05-08-1667
Pin Count	14	14	16	16	14	14	16	16	14	14	16	16

Parametrics

Parameters / Models	LTC3646EDE-1#PBF	LTC3646EDE-1#TRPBF	LTC3646EMSE-1#PBF	LTC3646EMSE-1#TRPBF	LTC3646HDE-1#PBF	LTC3646HDE-1#TRPBF	LTC3646HMSE-1#PBF	LTC3646HMSE-1#TRPBF	LTC3646IDE-1#PBF	LTC3646IDE-1#TRPBF	LTC3646IMSE-1#PBF	LTC3646IMSE-1#TRPBF
Architecture	Constant Frequency Controlled On-Time Current Mode	Constant Frequency Controlled On-Time Current Mode	Constant Frequency Controlled On-Time Current Mode	Constant Frequency Controlled On-Time Current Mode	Constant Frequency Controlled On-Time Current Mode	Constant Frequency Controlled On-Time Current Mode	Constant Frequency Controlled On-Time Current Mode	Constant Frequency Controlled On-Time Current Mode	Constant Frequency Controlled On-Time Current Mode	Constant Frequency Controlled On-Time Current Mode	Constant Frequency Controlled On-Time Current Mode	Constant Frequency Controlled On-Time Current Mode
Demo Boards	DC1731A-A,DC1731A-B,DC1820A-A,DC1820A-B	DC1731A-A,DC1731A-B,DC1820A-A,DC1820A-B	DC1731A-A,DC1731A-B,DC1820A-A,DC1820A-B	DC1731A-A,DC1731A-B,DC1820A-A,DC1820A-B	DC1731A-A,DC1731A-B,DC1820A-A,DC1820A-B	DC1731A-A,DC1731A-B,DC1820A-A,DC1820A-B	DC1731A-A,DC1731A-B,DC1820A-A,DC1820A-B	DC1731A-A,DC1731A-B,DC1820A-A,DC1820A-B	DC1731A-A,DC1731A-B,DC1820A-A,DC1820A-B	DC1731A-A,DC1731A-B,DC1820A-A,DC1820A-B	DC1731A-A,DC1731A-B,DC1820A-A,DC1820A-B	DC1731A-A,DC1731A-B,DC1820A-A,DC1820A-B
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
Export Control	no	no	no	no	no	no	no	no	no	no	no	no
Features	Resistor Set Frequency, External Synchronization, Burst Mode, Power Good	Resistor Set Frequency, External Synchronization, Burst Mode, Power Good	Resistor Set Frequency, External Synchronization, Burst Mode, Power Good	Resistor Set Frequency, External Synchronization, Burst Mode, Power Good	Resistor Set Frequency, External Synchronization, Burst Mode, Power Good	Resistor Set Frequency, External Synchronization, Burst Mode, Power Good	Resistor Set Frequency, External Synchronization, Burst Mode, Power Good	Resistor Set Frequency, External Synchronization, Burst Mode, Power Good	Resistor Set Frequency, External Synchronization, Burst Mode, Power Good	Resistor Set Frequency, External Synchronization, Burst Mode, Power Good	Resistor Set Frequency, External Synchronization, Burst Mode, Power Good	Resistor Set Frequency, External Synchronization, Burst Mode, Power Good
Frequency, kHz	3000	3000	3000	3000	3000	3000	3000	3000	3000	3000	3000	3000
Frequency Adjust Range	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz
Frequency Sync Range	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz	200kHz - 3MHz
Integrated Inductor	no	no	no	no	no	no	no	no	no	no	no	no
Ishutdown, µA	8	8	8	8	8	8	8	8	8	8	8	8
Isupply, mA	0.140	0.140	0.140	0.140	0.140	0.140	0.140	0.140	0.140	0.140	0.140	0.140
Max Phases	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
Number of Outputs	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
Output Current, A	1	1	1	1	1	1	1	1	1	1	1	1
Polyphase	no	no	no	no	no	no	no	no	no	no	no	no
Switch Current, A	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2
Synchronous	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
Vin Max, V	40	40	40	40	40	40	40	40	40	40	40	40
Vin Min, V	4	4	4	4	4	4	4	4	4	4	4	4
Vout Max, V	15	15	15	15	15	15	15	15	15	15	15	15
Vout Maximum	15V	15V	15V	15V	15V	15V	15V	15V	15V	15V	15V	15V
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
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

Eco Plan

	LTC3646EDE-1#PBF	LTC3646EDE-1#TRPBF	LTC3646EMSE-1#PBF	LTC3646EMSE-1#TRPBF	LTC3646HDE-1#PBF	LTC3646HDE-1#TRPBF	LTC3646HMSE-1#PBF	LTC3646HMSE-1#TRPBF	LTC3646IDE-1#PBF	LTC3646IDE-1#TRPBF	LTC3646IMSE-1#PBF	LTC3646IMSE-1#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Other Options

LTC3646 LTC3646

Model Line

Series: LTC3646-1 (12)

LTC3646EDE-1#PBF LTC3646EDE-1#TRPBF LTC3646EMSE-1#PBF LTC3646EMSE-1#TRPBF LTC3646HDE-1#PBF LTC3646HDE-1#TRPBF LTC3646HMSE-1#PBF LTC3646HMSE-1#TRPBF LTC3646IDE-1#PBF LTC3646IDE-1#TRPBF LTC3646IMSE-1#PBF LTC3646IMSE-1#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > Step-Down (Buck) Regulators > Internal Power Switch Buck | High Input Voltage Buck
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators