Datasheet Linear Technology LT8609

Manufacturer	Linear Technology
Series	LT8609

42V, 2A/3A Peak Synchronous Step-Down Regulator with 2.5µA Quiescent Current

Datasheets

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42V, 2A/3A Peak Synchronous Step-Down Regulator with 2.5µA Quiescent Current

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Packaging

	LT8609AEMSE#PBF	LT8609AEMSE#TRPBF	LT8609AHMSE#PBF	LT8609AHMSE#TRPBF	LT8609AHMSE16#PBF	LT8609AHMSE16#TRPBF	LT8609AIMSE#PBF	LT8609AIMSE#TRPBF	LT8609BEMSE#PBF	LT8609BEMSE#TRPBF	LT8609BIMSE#PBF	LT8609BIMSE#TRPBF	LT8609EMSE#PBF	LT8609EMSE#TRPBF	LT8609HMSE#PBF	LT8609HMSE#TRPBF	LT8609IMSE#PBF	LT8609IMSE#TRPBF
N	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
Package	MS-10E Package Outline Drawing	MS-10E Package Outline Drawing	MS-10E Package Outline Drawing	MS-10E Package Outline Drawing	MS-16E Package Outline Drawing	MS-16E Package Outline Drawing	MS-10E Package Outline Drawing	MS-10E Package Outline Drawing	MS-10E Package Outline Drawing	MS-10E Package Outline Drawing	MS-10E Package Outline Drawing	MS-10E Package Outline Drawing	MS-10E Package Outline Drawing	MS-10E Package Outline Drawing	MS-10E Package Outline Drawing	MS-10E Package Outline Drawing	MS-10E Package Outline Drawing	MS-10E Package Outline Drawing
Package Code	MSE	MSE	MSE	MSE	MSE	MSE	MSE	MSE	MSE	MSE	MSE	MSE	MSE	MSE	MSE	MSE	MSE	MSE
Package Index	05-08-1664	05-08-1664	05-08-1664	05-08-1664	05-08-1667	05-08-1667	05-08-1664	05-08-1664	05-08-1664	05-08-1664	05-08-1664	05-08-1664	05-08-1664	05-08-1664	05-08-1664	05-08-1664	05-08-1664	05-08-1664
Pin Count	10	10	10	10	16	16	10	10	10	10	10	10	10	10	10	10	10	10

Parametrics

Parameters / Models	LT8609AEMSE#PBF	LT8609AEMSE#TRPBF	LT8609AHMSE#PBF	LT8609AHMSE#TRPBF	LT8609AHMSE16#PBF	LT8609AHMSE16#TRPBF	LT8609AIMSE#PBF	LT8609AIMSE#TRPBF	LT8609BEMSE#PBF	LT8609BEMSE#TRPBF	LT8609BIMSE#PBF	LT8609BIMSE#TRPBF	LT8609EMSE#PBF	LT8609EMSE#TRPBF	LT8609HMSE#PBF	LT8609HMSE#TRPBF	LT8609IMSE#PBF	LT8609IMSE#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	Constant Frequency Current Mode	Constant Frequency Current Mode
Demo Boards	DC2195B-A	DC2195B-A	DC2195B-A	DC2195B-A	DC2195B-A	DC2195B-A	DC2195B-A	DC2195B-A	DC2195B-A	DC2195B-A	DC2195B-A	DC2195B-A	DC2195B-A	DC2195B-A	DC2195B-A	DC2195B-A	DC2195B-A	DC2195B-A
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	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	no	no
Features	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good
Frequency, kHz	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200
Frequency Adjust Range	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz
Frequency Sync Range	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz	200kHz - 2.2MHz
Integrated Inductor	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Ishutdown, µA	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Isupply, mA	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025
Max Phases	1	1	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	yes	yes
Number of Outputs	1	1	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	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 85	-40 to 85	0 to 85	0 to 85	-40 to 85	-40 to 85	0 to 85	0 to 85	-40 to 125	-40 to 125	-40 to 85	-40 to 85
Output Current, A	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
Polyphase	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Subname	LT8609	LT8609	LT8609	LT8609	LT8609	LT8609	LT8609	LT8609	LT8609	LT8609	LT8609	LT8609	LT8609	LT8609	LT8609	LT8609	LT8609	LT8609
Switch Current, A	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5
Synchronous	yes	yes	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	Buck	Buck
Topology 1	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck
Vin Max, V	42	42	42	42	42	42	42	42	42	42	42	42	42	42	42	42	42	42
Vin Min, V	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
Vout Max, V	41.5	41.5	41.5	41.5	41.5	41.5	41.5	41.5	41.5	41.5	41.5	41.5	41.5	41.5	41.5	41.5	41.5	41.5
Vout Maximum	41.5V	41.5V	41.5V	41.5V	41.5V	41.5V	41.5V	41.5V	41.5V	41.5V	41.5V	41.5V	41.5V	41.5V	41.5V	41.5V	41.5V	41.5V
Vout Min, V	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8
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	1.5	1.5

Eco Plan

	LT8609AEMSE#PBF	LT8609AEMSE#TRPBF	LT8609AHMSE#PBF	LT8609AHMSE#TRPBF	LT8609AHMSE16#PBF	LT8609AHMSE16#TRPBF	LT8609AIMSE#PBF	LT8609AIMSE#TRPBF	LT8609BEMSE#PBF	LT8609BEMSE#TRPBF	LT8609BIMSE#PBF	LT8609BIMSE#TRPBF	LT8609EMSE#PBF	LT8609EMSE#TRPBF	LT8609HMSE#PBF	LT8609HMSE#TRPBF	LT8609IMSE#PBF	LT8609IMSE#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Model Line

Series: LT8609 (18)

LT8609AEMSE#PBF LT8609AEMSE#TRPBF LT8609AHMSE#PBF LT8609AHMSE#TRPBF LT8609AHMSE16#PBF LT8609AHMSE16#TRPBF LT8609AIMSE#PBF LT8609AIMSE#TRPBF LT8609BEMSE#PBF LT8609BEMSE#TRPBF LT8609BIMSE#PBF LT8609BIMSE#TRPBF LT8609EMSE#PBF LT8609EMSE#TRPBF LT8609HMSE#PBF LT8609HMSE#TRPBF LT8609IMSE#PBF LT8609IMSE#TRPBF

Manufacturer's Classification

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