Datasheet Linear Technology LTC3634

Manufacturer	Linear Technology
Series	LTC3634

15V Dual 3A Monolithic Step-Down Regulator for DDR Power

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PDF, 461 Kb, Revision: C, File uploaded: Sep 22, 2017

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Prices

Packaging

	LTC3634EFE#PBF	LTC3634EFE#TRPBF	LTC3634EUFD#PBF	LTC3634EUFD#TRPBF	LTC3634HFE#PBF	LTC3634HFE#TRPBF	LTC3634HUFD#PBF	LTC3634HUFD#TRPBF	LTC3634IFE#PBF	LTC3634IFE#TRPBF	LTC3634IUFD#PBF	LTC3634IUFD#TRPBF	LTC3634MPFE#PBF	LTC3634MPFE#TRPBF	LTC3634MPUFD#PBF	LTC3634MPUFD#TRPBF
N	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
Package	TSSOP-28 Package Outline Drawing	TSSOP-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	TSSOP-28 Package Outline Drawing	TSSOP-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	TSSOP-28 Package Outline Drawing	TSSOP-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	TSSOP-28 Package Outline Drawing	TSSOP-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing
Package Code	FE	FE	UFD	UFD	FE	FE	UFD	UFD	FE	FE	UFD	UFD	FE	FE	UFD	UFD
Package Index	05-08-1663 (EB)	05-08-1663 (EB)	05-08-1712	05-08-1712	05-08-1663 (EB)	05-08-1663 (EB)	05-08-1712	05-08-1712	05-08-1663 (EB)	05-08-1663 (EB)	05-08-1712	05-08-1712	05-08-1663 (EB)	05-08-1663 (EB)	05-08-1712	05-08-1712
Pin Count	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28

Parametrics

Parameters / Models	LTC3634EFE#PBF	LTC3634EFE#TRPBF	LTC3634EUFD#PBF	LTC3634EUFD#TRPBF	LTC3634HFE#PBF	LTC3634HFE#TRPBF	LTC3634HUFD#PBF	LTC3634HUFD#TRPBF	LTC3634IFE#PBF	LTC3634IFE#TRPBF	LTC3634IUFD#PBF	LTC3634IUFD#TRPBF	LTC3634MPFE#PBF	LTC3634MPFE#TRPBF	LTC3634MPUFD#PBF	LTC3634MPUFD#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	DC1708A,DC1839A	DC1708A,DC1839A	DC1708A,DC1839A	DC1708A,DC1839A	DC1708A,DC1839A	DC1708A,DC1839A	DC1708A,DC1839A	DC1708A,DC1839A	DC1708A,DC1839A	DC1708A,DC1839A	DC1708A,DC1839A	DC1708A,DC1839A	DC1708A,DC1839A	DC1708A,DC1839A	DC1708A,DC1839A	DC1708A,DC1839A
Design Tools	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model
Export Control	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Features	DDR Mode, Resistor Set Frequency, External Synchronization, Power Good	DDR Mode, Resistor Set Frequency, External Synchronization, Power Good	DDR Mode, Resistor Set Frequency, External Synchronization, Power Good	DDR Mode, Resistor Set Frequency, External Synchronization, Power Good	DDR Mode, Resistor Set Frequency, External Synchronization, Power Good	DDR Mode, Resistor Set Frequency, External Synchronization, Power Good	DDR Mode, Resistor Set Frequency, External Synchronization, Power Good	DDR Mode, Resistor Set Frequency, External Synchronization, Power Good	DDR Mode, Resistor Set Frequency, External Synchronization, Power Good	DDR Mode, Resistor Set Frequency, External Synchronization, Power Good	DDR Mode, Resistor Set Frequency, External Synchronization, Power Good	DDR Mode, Resistor Set Frequency, External Synchronization, Power Good	DDR Mode, Resistor Set Frequency, External Synchronization, Power Good	DDR Mode, Resistor Set Frequency, External Synchronization, Power Good	DDR Mode, Resistor Set Frequency, External Synchronization, Power Good	DDR Mode, Resistor Set Frequency, External Synchronization, Power Good
Frequency, kHz	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000
Frequency Adjust Range	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz
Frequency Sync Range	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz	500kHz - 4MHz
Integrated Inductor	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Ishutdown, µA	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15
Isupply, mA	1.3	1.3	1.3	1.3	1.3	1.3	1.3	1.3	1.3	1.3	1.3	1.3	1.3	1.3	1.3	1.3
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	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
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
Output Current 2, A	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
Output Current 3, A	0.010	0.010	0.010	0.010	0.010	0.010	0.010	0.010	0.010	0.010	0.010	0.010	0.010	0.010	0.010	0.010
Polyphase	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Switch Current, A	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4
Switch Current 2, A	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4
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
Topology 1	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck
Topology 2	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck
Topology 3	LDO	LDO	LDO	LDO	LDO	LDO	LDO	LDO	LDO	LDO	LDO	LDO	LDO	LDO	LDO	LDO
Vin Max, V	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15
Vin Min, V	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6
Vout Max, V	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
Vout Max 2, V	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
Vout Max 3, V	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
Vout Maximum	3V	3V	3V	3V	3V	3V	3V	3V	3V	3V	3V	3V	3V	3V	3V	3V
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
Vout Min 2, V	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3
Vout Min 3, V	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3

Eco Plan

	LTC3634EFE#PBF	LTC3634EFE#TRPBF	LTC3634EUFD#PBF	LTC3634EUFD#TRPBF	LTC3634HFE#PBF	LTC3634HFE#TRPBF	LTC3634HUFD#PBF	LTC3634HUFD#TRPBF	LTC3634IFE#PBF	LTC3634IFE#TRPBF	LTC3634IUFD#PBF	LTC3634IUFD#TRPBF	LTC3634MPFE#PBF	LTC3634MPFE#TRPBF	LTC3634MPUFD#PBF	LTC3634MPUFD#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Model Line

Series: LTC3634 (16)

LTC3634EFE#PBF LTC3634EFE#TRPBF LTC3634EUFD#PBF LTC3634EUFD#TRPBF LTC3634HFE#PBF LTC3634HFE#TRPBF LTC3634HUFD#PBF LTC3634HUFD#TRPBF LTC3634IFE#PBF LTC3634IFE#TRPBF LTC3634IUFD#PBF LTC3634IUFD#TRPBF LTC3634MPFE#PBF LTC3634MPFE#TRPBF LTC3634MPUFD#PBF LTC3634MPUFD#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > DDR Memory/Bus Termination
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators