Datasheet Linear Technology LTC3600

Manufacturer	Linear Technology
Series	LTC3600

15V, 1.5A Synchronous Rail-to-Rail Single Resistor Step-Down Regulator

Datasheets

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PDF, 852 Kb, Language: en, File uploaded: Sep 22, 2017, Pages: 28
15V, 1.5A Synchronous Rail-to-Rail Single Resistor Step-Down Regulator

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Packaging

	LTC3600EDD#PBF	LTC3600EDD#TRPBF	LTC3600EMSE#PBF	LTC3600EMSE#TRPBF	LTC3600IDD#PBF	LTC3600IDD#TRPBF	LTC3600IMSE#PBF	LTC3600IMSE#TRPBF
N	1	2	3	4	5	6	7	8
Package	3x3 DFN-12 Package Outline Drawing	3x3 DFN-12 Package Outline Drawing	MS-12E Package Outline Drawing	MS-12E Package Outline Drawing	3x3 DFN-12 Package Outline Drawing	3x3 DFN-12 Package Outline Drawing	MS-12E Package Outline Drawing	MS-12E Package Outline Drawing
Package Code	DD	DD	MSE	MSE	DD	DD	MSE	MSE
Package Index	05-08-1725	05-08-1725	05-08-1666	05-08-1666	05-08-1725	05-08-1725	05-08-1666	05-08-1666
Pin Count	12	12	12	12	12	12	12	12

Parametrics

Parameters / Models	LTC3600EDD#PBF	LTC3600EDD#TRPBF	LTC3600EMSE#PBF	LTC3600EMSE#TRPBF	LTC3600IDD#PBF	LTC3600IDD#TRPBF	LTC3600IMSE#PBF	LTC3600IMSE#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
Demo Boards	DC1667A	DC1667A	DC1667A	DC1667A	DC1667A	DC1667A	DC1667A	DC1667A
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
Export Control	no	no	no	no	no	no	no	no
Features	Current Source Reference, Resistor Set Frequency, External Synchronization, Power Good, Tracking	Current Source Reference, Resistor Set Frequency, External Synchronization, Power Good, Tracking	Current Source Reference, Resistor Set Frequency, External Synchronization, Power Good, Tracking	Current Source Reference, Resistor Set Frequency, External Synchronization, Power Good, Tracking	Current Source Reference, Resistor Set Frequency, External Synchronization, Power Good, Tracking	Current Source Reference, Resistor Set Frequency, External Synchronization, Power Good, Tracking	Current Source Reference, Resistor Set Frequency, External Synchronization, Power Good, Tracking	Current Source Reference, Resistor Set Frequency, External Synchronization, Power Good, Tracking
Frequency, kHz	4000	4000	4000	4000	4000	4000	4000	4000
Frequency Adjust Range	200kHz - 4MHz	200kHz - 4MHz	200kHz - 4MHz	200kHz - 4MHz	200kHz - 4MHz	200kHz - 4MHz	200kHz - 4MHz	200kHz - 4MHz
Frequency Sync Range	200kHz - 4MHz	200kHz - 4MHz	200kHz - 4MHz	200kHz - 4MHz	200kHz - 4MHz	200kHz - 4MHz	200kHz - 4MHz	200kHz - 4MHz
Integrated Inductor	no	no	no	no	no	no	no	no
Isupply, mA	0.7	0.7	0.7	0.7	0.7	0.7	0.7	0.7
Max Phases	1	1	1	1	1	1	1	1
Monolithic	yes	yes	yes	yes	yes	yes	yes	yes
Number of Outputs	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 85	-40 to 85	-40 to 85	-40 to 85
Output Current, A	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5
Polyphase	no	no	no	no	no	no	no	no
Switch Current, A	2	2	2	2	2	2	2	2
Synchronous	yes	yes	yes	yes	yes	yes	yes	yes
Topology	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck
Vin Max, V	15	15	15	15	15	15	15	15
Vin Min, V	4	4	4	4	4	4	4	4
Vout Max, V	14.5	14.5	14.5	14.5	14.5	14.5	14.5	14.5
Vout Maximum	Vin - 0.5V	Vin - 0.5V	Vin - 0.5V	Vin - 0.5V	Vin - 0.5V	Vin - 0.5V	Vin - 0.5V	Vin - 0.5V

Eco Plan

	LTC3600EDD#PBF	LTC3600EDD#TRPBF	LTC3600EMSE#PBF	LTC3600EMSE#TRPBF	LTC3600IDD#PBF	LTC3600IDD#TRPBF	LTC3600IMSE#PBF	LTC3600IMSE#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Design Notes

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1.5A Rail-to-Rail Output Synchronous Step-Down Regulator Adjusts with a Single Resistor &mdash DN506
PDF, 520 Kb, File published: Mar 13, 2012
Extract from the document
1.5A Rail-to-Rail Output Synchronous Step-Down Regulator
Adjusts with a Single Resistor
Design Note 506
Jeff Zhang
Introduction
A new regulator architecture the LTC3600 (first introduced with the LT3080 linear regulator) has wider output
range and better regulation than traditional regulators.
Using a precision 50ВµA current source and a voltage
follower, the output is adjustable from вЂњ0VвЂќ to close
to VIN. Normally, the lowest output voltage is limited
to the reference voltage. However, this new regulator
has a constant loop gain independent of the output
voltage giving excellent regulation at any output and
allowing multiple regulators to be paralleled for higher
output currents.
Operation
The LTC3600 is a current mode monolithic step-down
buck regulator with excellent line and load transient
responses. The 200kHz to 4MHz operating frequency
can be set by a resistor or synchronized to an external
clock. The LTC3600 internally generates an accurate
50ОјA current source, allowing the use of a single external LTC3600 VIN VIN
12V resistor to program the reference voltage from 0V to …

Articles

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1.5A Rail-to-Rail Output Synchronous Step-Down Regulator Adjusts with a Single Resistor &mdash LT Journal
PDF, 2.2 Mb, File published: Jul 20, 2012
Extract from the document
1.5A Rail-to-Rail Output Synchronous Step-Down Regulator
Adjusts with a Single Resistor
Jeff Zhang The LTC3600 features a
wide output range with
tight regulation over the
entire range. In most
regulators, the lowest
output voltage is limited
to the reference voltage.
The LTC3600, however,
uses a novel regulation
scheme with a precision
50ВµA current source and
a voltage follower, creating
an adjustable output from
вЂњ0VвЂќ to close to VIN. It
also features constant
loop gain, independent of
the output voltage, giving
excellent regulation at any
output and allowing multiple
regulators to be paralleled
for high output currents. LTC3600 VIN VIN …

Model Line

Series: LTC3600 (8)

LTC3600EDD#PBF LTC3600EDD#TRPBF LTC3600EMSE#PBF LTC3600EMSE#TRPBF LTC3600IDD#PBF LTC3600IDD#TRPBF LTC3600IMSE#PBF LTC3600IMSE#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > Step-Down (Buck) Regulators > Internal Power Switch Buck