Datasheet Linear Technology LTC3864

Manufacturer	Linear Technology
Series	LTC3864

60V Low IQ Step-Down DC/DC Controller with 100% Duty Cycle Capability

Datasheets

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PDF, 709 Kb, Language: en, File uploaded: Sep 24, 2017, Pages: 30
60V Low IQ Step-Down DC/DC Controller with 100% Duty Cycle Capability

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Packaging

	LTC3864EDE#PBF	LTC3864EDE#TRPBF	LTC3864EMSE#PBF	LTC3864EMSE#TRPBF	LTC3864HDE#PBF	LTC3864HDE#TRPBF	LTC3864HMSE#PBF	LTC3864HMSE#TRPBF	LTC3864IDE#PBF	LTC3864IDE#TRPBF	LTC3864IMSE#PBF	LTC3864IMSE#TRPBF	LTC3864MPDE#PBF	LTC3864MPDE#TRPBF	LTC3864MPMSE#PBF	LTC3864MPMSE#TRPBF
N	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
Package	4x3 DFN-12 Package Outline Drawing	4x3 DFN-12 Package Outline Drawing	MS-12E Package Outline Drawing	MS-12E Package Outline Drawing	4x3 DFN-12 Package Outline Drawing	4x3 DFN-12 Package Outline Drawing	MS-12E Package Outline Drawing	MS-12E Package Outline Drawing	4x3 DFN-12 Package Outline Drawing	4x3 DFN-12 Package Outline Drawing	MS-12E Package Outline Drawing	MS-12E Package Outline Drawing	4x3 DFN-12 Package Outline Drawing	4x3 DFN-12 Package Outline Drawing	MS-12E Package Outline Drawing	MS-12E Package Outline Drawing
Package Code	DE/UE	DE/UE	MSE	MSE	DE/UE	DE/UE	MSE	MSE	DE/UE	DE/UE	MSE	MSE	DE/UE	DE/UE	MSE	MSE
Package Index	05-08-1695	05-08-1695	05-08-1666	05-08-1666	05-08-1695	05-08-1695	05-08-1666	05-08-1666	05-08-1695	05-08-1695	05-08-1666	05-08-1666	05-08-1695	05-08-1695	05-08-1666	05-08-1666
Pin Count	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12

Parametrics

Parameters / Models	LTC3864EDE#PBF	LTC3864EDE#TRPBF	LTC3864EMSE#PBF	LTC3864EMSE#TRPBF	LTC3864HDE#PBF	LTC3864HDE#TRPBF	LTC3864HMSE#PBF	LTC3864HMSE#TRPBF	LTC3864IDE#PBF	LTC3864IDE#TRPBF	LTC3864IMSE#PBF	LTC3864IMSE#TRPBF	LTC3864MPDE#PBF	LTC3864MPDE#TRPBF	LTC3864MPMSE#PBF	LTC3864MPMSE#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	DC1722A,DC2434A	DC1722A,DC2434A	DC1722A,DC2434A	DC1722A,DC2434A	DC1722A,DC2434A	DC1722A,DC2434A	DC1722A,DC2434A	DC1722A,DC2434A	DC1722A,DC2434A	DC1722A,DC2434A	DC1722A,DC2434A	DC1722A,DC2434A	DC1722A,DC2434A	DC1722A,DC2434A	DC1722A,DC2434A	DC1722A,DC2434A
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	100% Duty Cycle, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good	100% Duty Cycle, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good	100% Duty Cycle, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good	100% Duty Cycle, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good	100% Duty Cycle, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good	100% Duty Cycle, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good	100% Duty Cycle, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good	100% Duty Cycle, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good	100% Duty Cycle, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good	100% Duty Cycle, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good	100% Duty Cycle, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good	100% Duty Cycle, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good	100% Duty Cycle, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good	100% Duty Cycle, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good	100% Duty Cycle, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good	100% Duty Cycle, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good
Frequency, kHz	850	850	850	850	850	850	850	850	850	850	850	850	850	850	850	850
Frequency Adjust Range	50kHz - 850kHz	50kHz - 850kHz	50kHz - 850kHz	50kHz - 850kHz	50kHz - 850kHz	50kHz - 850kHz	50kHz - 850kHz	50kHz - 850kHz	50kHz - 850kHz	50kHz - 850kHz	50kHz - 850kHz	50kHz - 850kHz	50kHz - 850kHz	50kHz - 850kHz	50kHz - 850kHz	50kHz - 850kHz
Frequency Sync Range	75kHz - 750kHz	75kHz - 750kHz	75kHz - 750kHz	75kHz - 750kHz	75kHz - 750kHz	75kHz - 750kHz	75kHz - 750kHz	75kHz - 750kHz	75kHz - 750kHz	75kHz - 750kHz	75kHz - 750kHz	75kHz - 750kHz	75kHz - 750kHz	75kHz - 750kHz	75kHz - 750kHz	75kHz - 750kHz
Integrated Inductor	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Ishutdown, µA	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7
Isupply, mA	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04
Max Phases	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Monolithic	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
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	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
Polyphase	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Sense Resistor	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense
Switch Current, A	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
Synchronous	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Topology	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck
Vin Max, V	60	60	60	60	60	60	60	60	60	60	60	60	60	60	60	60
Vin Min, V	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
Vout Max, V	60	60	60	60	60	60	60	60	60	60	60	60	60	60	60	60
Vout Maximum	Vin	Vin	Vin	Vin	Vin	Vin	Vin	Vin	Vin	Vin	Vin	Vin	Vin	Vin	Vin	Vin
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
Vref Accuracy Over Temp, %	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1

Eco Plan

	LTC3864EDE#PBF	LTC3864EDE#TRPBF	LTC3864EMSE#PBF	LTC3864EMSE#TRPBF	LTC3864HDE#PBF	LTC3864HDE#TRPBF	LTC3864HMSE#PBF	LTC3864HMSE#TRPBF	LTC3864IDE#PBF	LTC3864IDE#TRPBF	LTC3864IMSE#PBF	LTC3864IMSE#TRPBF	LTC3864MPDE#PBF	LTC3864MPDE#TRPBF	LTC3864MPMSE#PBF	LTC3864MPMSE#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Articles

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40µA IQ, P-Channel Step-Down Controller Operates from 60V to 3.5V VIN and Maintains High Efficiency at Light Loads &mdash LT Journal
PDF, 2.7 Mb, File published: Apr 10, 2013
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40ВµA IQ, P-Channel Step-Down Controller Operates from
60V to 3.5V VIN and Maintains High Efficiency at Light Loads
Terry Groom The LTC3864 is low IQ step-down DC/DC controller. It controls an external
P-channel MOSFET to provide excellent light load efficiency, wide input voltage
range (3.5VвЂ“60V) including low dropout operation, reliability and functional simplicity
in an easy-to-use 12-pin package. The LTC3864 is capable of 100% duty factor
operation, allowing continued operation with input supply voltage droop. HIGH EFFICIENCY
PMOS CONTROLLER The LTC3864 offers high efficiency at
full and light load by virtue of a strong
0.9О© turn-on and 2О© turn-off gate driver
and 40Вµ A low IQ Burst ModeВ® operation. Modern automotive always-on
applications often require less than
70Вµ A total supply current to prevent
battery drain. Burst Mode switching
and a low IQ of only 40Вµ A allows high
efficiency at these very low currents.
Figure 1 shows a typical efficiency graph,
showing very little decline as the load
current is reduced. Light load efficiency
is achieved in two ways: first by low
frequency Burst Mode switching, and
second by low VIN IQ. In light load Burst
Mode operation, the load current is …

Model Line

Series: LTC3864 (16)

LTC3864EDE#PBF LTC3864EDE#TRPBF LTC3864EMSE#PBF LTC3864EMSE#TRPBF LTC3864HDE#PBF LTC3864HDE#TRPBF LTC3864HMSE#PBF LTC3864HMSE#TRPBF LTC3864IDE#PBF LTC3864IDE#TRPBF LTC3864IMSE#PBF LTC3864IMSE#TRPBF LTC3864MPDE#PBF LTC3864MPDE#TRPBF LTC3864MPMSE#PBF LTC3864MPMSE#TRPBF

Manufacturer's Classification

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