Datasheet Linear Technology LT3694

Manufacturer	Linear Technology
Series	LT3694

36V, 2.6A Monolithic Buck Regulator With Dual LDO

Datasheets

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PDF, 347 Kb, Language: en, File uploaded: Sep 19, 2017, Pages: 28
36V, 2.6A Monolithic Buck Regulator With Dual LDO

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Packaging

	LT3694EFE#PBF	LT3694EFE#TRPBF	LT3694EFE-1#PBF	LT3694EFE-1#TRPBF	LT3694EUFD#PBF	LT3694EUFD#TRPBF	LT3694EUFD-1#PBF	LT3694EUFD-1#TRPBF	LT3694IFE#PBF	LT3694IFE#TRPBF	LT3694IFE-1#PBF	LT3694IFE-1#TRPBF	LT3694IUFD#PBF	LT3694IUFD#TRPBF	LT3694IUFD-1#PBF	LT3694IUFD-1#TRPBF
N	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
Package	TSSOP-20 Package Outline Drawing	TSSOP-20 Package Outline Drawing	TSSOP-20 Package Outline Drawing	TSSOP-20 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	TSSOP-20 Package Outline Drawing	TSSOP-20 Package Outline Drawing	TSSOP-20 Package Outline Drawing	TSSOP-20 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing
Package Code	FE	FE	FE	FE	UFD	UFD	UFD	UFD	FE	FE	FE	FE	UFD	UFD	UFD	UFD
Package Index	05-08-1663 (CB)	05-08-1663 (CB)	05-08-1663 (CB)	05-08-1663 (CB)	05-08-1712	05-08-1712	05-08-1712	05-08-1712	05-08-1663 (CB)	05-08-1663 (CB)	05-08-1663 (CB)	05-08-1663 (CB)	05-08-1712	05-08-1712	05-08-1712	05-08-1712
Pin Count	20	20	20	20	28	28	28	28	20	20	20	20	28	28	28	28

Parametrics

Parameters / Models	LT3694EFE#PBF	LT3694EFE#TRPBF	LT3694EFE-1#PBF	LT3694EFE-1#TRPBF	LT3694EUFD#PBF	LT3694EUFD#TRPBF	LT3694EUFD-1#PBF	LT3694EUFD-1#TRPBF	LT3694IFE#PBF	LT3694IFE#TRPBF	LT3694IFE-1#PBF	LT3694IFE-1#TRPBF	LT3694IUFD#PBF	LT3694IUFD#TRPBF	LT3694IUFD-1#PBF	LT3694IUFD-1#TRPBF
Buck Output Current, A	2.6	2.6	2.6	2.6	2.6	2.6	2.6	2.6	2.6	2.6	2.6	2.6	2.6	2.6	2.6	2.6
Demo Boards	DC1541A-A	DC1541A-A	DC1541A-A	DC1541A-A	DC1541A-A	DC1541A-A	DC1541A-A	DC1541A-A	DC1541A-A	DC1541A-A	DC1541A-A	DC1541A-A	DC1541A-A	DC1541A-A	DC1541A-A	DC1541A-A
Design Tools	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model
Export Control	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Features	LDO, Tracking, Resistor Set Frequency, External Synchronization	LDO, Tracking, Resistor Set Frequency, External Synchronization	LDO, Tracking, Resistor Set Frequency, External Synchronization	LDO, Tracking, Resistor Set Frequency, External Synchronization	LDO, Tracking, Resistor Set Frequency, External Synchronization	LDO, Tracking, Resistor Set Frequency, External Synchronization	LDO, Tracking, Resistor Set Frequency, External Synchronization	LDO, Tracking, Resistor Set Frequency, External Synchronization	LDO, Tracking, Resistor Set Frequency, External Synchronization	LDO, Tracking, Resistor Set Frequency, External Synchronization	LDO, Tracking, Resistor Set Frequency, External Synchronization	LDO, Tracking, Resistor Set Frequency, External Synchronization	LDO, Tracking, Resistor Set Frequency, External Synchronization	LDO, Tracking, Resistor Set Frequency, External Synchronization	LDO, Tracking, Resistor Set Frequency, External Synchronization	LDO, Tracking, Resistor Set Frequency, External Synchronization
LDO Output Current, A	Controller, Controller	Controller, Controller	Controller, Controller	Controller, Controller	Controller, Controller	Controller, Controller	Controller, Controller	Controller, Controller	Controller, Controller	Controller, Controller	Controller, Controller	Controller, Controller	Controller, Controller	Controller, Controller	Controller, Controller	Controller, Controller
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	0 to 85	0 to 85	0 to 85	0 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Vin Max, V	36	36	36	36	36	36	36	36	36	36	36	36	36	36	36	36
Vin Min, V	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4

Eco Plan

	LT3694EFE#PBF	LT3694EFE#TRPBF	LT3694EFE-1#PBF	LT3694EFE-1#TRPBF	LT3694EUFD#PBF	LT3694EUFD#TRPBF	LT3694EUFD-1#PBF	LT3694EUFD-1#TRPBF	LT3694IFE#PBF	LT3694IFE#TRPBF	LT3694IFE-1#PBF	LT3694IFE-1#TRPBF	LT3694IUFD#PBF	LT3694IUFD#TRPBF	LT3694IUFD-1#PBF	LT3694IUFD-1#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Articles

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The Harsh Reality of Wide-Ranging 4V-36V Automotive Batteries Is No Problem for Triple Output Regulator in 4mm × 5mm QFN &mdash LT Journal
PDF, 770 Kb, File published: Jul 15, 2011
Extract from the document
The Harsh Reality of Wide-Ranging 4VвЂ“36V Automotive
Batteries Is No Problem for Triple Output Regulator in
4mmВ Г—В 5mm QFN
Michael Nootbaar DC/DC converters for automotive applications must operate
in an environment of extremes. Input transients can exceed
the nominal battery voltage by a factor of five and last
hundreds of milliseconds, while temperatures under the
hood soar far above the capability of typical commercial
grade ICs. In this harsh environment, space is tight, so even
the most robust devices must perform multiple functions.
The LT3694/LT3694-1 meets these requirements by combining a 2.6A switching
regulator and two low dropout linear
regulators in a compact 4mmВ Г—В 5mm
QFN package or a thermally enhanced
TSSOP. The switching regulator requires
a single inductor and has an internal
power switch, cycle-by-cycle current
limiting and track/soft-start control. Each
LDO requires only an external NPN pass
transistor and includes foldback current limiting and track/soft-start control. An internal overvoltage detector
shuts off the switching regulator when
VIN exceeds 38V, protecting the switch and
the Schottky rectifier. This allows it to …

Model Line

Series: LT3694 (16)

LT3694EFE#PBF LT3694EFE#TRPBF LT3694EFE-1#PBF LT3694EFE-1#TRPBF LT3694EUFD#PBF LT3694EUFD#TRPBF LT3694EUFD-1#PBF LT3694EUFD-1#TRPBF LT3694IFE#PBF LT3694IFE#TRPBF LT3694IFE-1#PBF LT3694IFE-1#TRPBF LT3694IUFD#PBF LT3694IUFD#TRPBF LT3694IUFD-1#PBF LT3694IUFD-1#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > Step-Down (Buck) Regulators > Internal Power Switch Buck | Buck Regulator Plus LDO
Power Management > PMIC & Multifunction > Multitopology DC/DC