Datasheet Linear Technology LTC3613

Manufacturer	Linear Technology
Series	LTC3613

24V, 15A Monolithic Step Down Regulator with Differential Output Sensing

Datasheets

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PDF, 464 Kb, Language: en, File uploaded: Sep 22, 2017, Pages: 36
24V, 15A Monolithic Step Down Regulator with Differential Output Sensing

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Prices

Packaging

	LTC3613EWKH#PBF	LTC3613EWKH#TRPBF	LTC3613IWKH#PBF	LTC3613IWKH#TRPBF
N	1	2	3	4
Package	7x9 QFN-56 Package Outline Drawing	7x9 QFN-56 Package Outline Drawing	7x9 QFN-56 Package Outline Drawing	7x9 QFN-56 Package Outline Drawing
Package Code	WKH	WKH	WKH	WKH
Package Index	05-08-1870	05-08-1870	05-08-1870	05-08-1870
Pin Count	56	56	56	56

Parametrics

Parameters / Models	LTC3613EWKH#PBF	LTC3613EWKH#TRPBF	LTC3613IWKH#PBF	LTC3613IWKH#TRPBF
Architecture	Controlled On-Time Valley Current Mode	Controlled On-Time Valley Current Mode	Controlled On-Time Valley Current Mode	Controlled On-Time Valley Current Mode
Demo Boards	DC1700A	DC1700A	DC1700A	DC1700A
Design Tools	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File
Export Control	no	no	no	no
Features	External Synchronization, Resistor Set Frequency, Differential Remote Sense, Power Good, Tracking	External Synchronization, Resistor Set Frequency, Differential Remote Sense, Power Good, Tracking	External Synchronization, Resistor Set Frequency, Differential Remote Sense, Power Good, Tracking	External Synchronization, Resistor Set Frequency, Differential Remote Sense, Power Good, Tracking
Frequency, kHz	1000	1000	1000	1000
Frequency Adjust Range	200kHz - 1MHz	200kHz - 1MHz	200kHz - 1MHz	200kHz - 1MHz
Frequency Sync Range	200kHz - 1MHz	200kHz - 1MHz	200kHz - 1MHz	200kHz - 1MHz
Integrated Inductor	no	no	no	no
Ishutdown, µA	15	15	15	15
Isupply, mA	2	2	2	2
Max Phases	1	1	1	1
Monolithic	yes	yes	yes	yes
Number of Outputs	1	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	-40 to 85	-40 to 85
Output Current, A	15	15	15	15
Polyphase	no	no	no	no
Sense Resistor	Rsense, DCR	Rsense, DCR	Rsense, DCR	Rsense, DCR
Switch Current, A	25	25	25	25
Synchronous	yes	yes	yes	yes
Topology	Buck	Buck	Buck	Buck
Vin Max, V	24	24	24	24
Vin Min, V	4.5	4.5	4.5	4.5
Vout Max, V	5.5	5.5	5.5	5.5
Vout Maximum	Vin	Vin	Vin	Vin
Vout Min, V	0.6	0.6	0.6	0.6

Eco Plan

	LTC3613EWKH#PBF	LTC3613EWKH#TRPBF	LTC3613IWKH#PBF	LTC3613IWKH#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant

Articles

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24V, 15A Step-Down Regulator in Sub-1mm Height Package Pushes Monolithic Performance Limits &mdash LT Journal
PDF, 2.1 Mb, File published: Jul 20, 2012
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24V, 15A Step-Down Regulator in Sub-1mm Height Package
Pushes Monolithic Performance Limits
Stephanie Dai Monolithic switching regulators and switching controllers together dominate the DC/DC
converter market. Generally, there is little overlap in their respective applications.
Controller-based solutions are favored for high performance, higher power applications
where minimal power loss and top thermal performance are priorities. In contrast,
monolithic regulators are favored in lower power applications where compact size
is the main requirement. Controllers typically offer more features than monolithic
solutions, but are at a significant solution-size disadvantage. The light footprint of
monolithic regulators usually comes at a cost of features and increased power loss,
and their reliance on integrated MOSFETs places practical limits on power.
The LTC3613 monolithic regulator
blurs the line drawn between applications for controllers and monolithic
regulators by combining a high performance fully featured controller
with onboard low RDS(ON) MOSFETs.
FEATURES The LTC3613 can accept an input voltage between 4.5V to 24V and supports
output voltages between 0.6V to 5.5V. The
onboard top and bottom MOSFETs feature low RDS(ON), around 7mО© and 5mО©,
respectively, keeping power dissipation
low and allowing the LTC3613 to deliver
up to 15A of adjustable load current.
The LTC3613 features true remote differential output voltage sensing. This allows
for accurate regulation of the output …

Model Line

Series: LTC3613 (4)

LTC3613EWKH#PBF LTC3613EWKH#TRPBF LTC3613IWKH#PBF LTC3613IWKH#TRPBF

Manufacturer's Classification

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