Datasheet Linear Technology LTC3415

Manufacturer	Linear Technology
Series	LTC3415

7A, PolyPhase Synchronous Step-Down Regulator

Datasheets

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PDF, 322 Kb, Language: en, File uploaded: Sep 21, 2017, Pages: 28
7A, PolyPhase Synchronous Step-Down Regulator

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Packaging

	LTC3415EUHF#PBF	LTC3415EUHF#TRPBF
N	1	2
Package	5x7 QFN-38 Package Outline Drawing	5x7 QFN-38 Package Outline Drawing
Package Code	UHF	UHF
Package Index	05-08-1701	05-08-1701
Pin Count	38	38

Parametrics

Parameters / Models	LTC3415EUHF#PBF	LTC3415EUHF#TRPBF
Architecture	Constant Frequency Current Mode	Constant Frequency Current Mode
Demo Boards	DC725A,DC768A	DC725A,DC768A
Design Tools	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File
Export Control	no	no
Features	Burst Mode, Tracking, PolyPhase, External Synchronization, Spread Spectrum, 100% Duty Cycle	Burst Mode, Tracking, PolyPhase, External Synchronization, Spread Spectrum, 100% Duty Cycle
Frequency, kHz	2250	2250
Frequency Sync Range	750kHz - 2.25MHz	750kHz - 2.25MHz
Integrated Inductor	no	no
Ishutdown, µA	0.2	0.2
Isupply, mA	0.45	0.45
Max Phases	12	12
Monolithic	yes	yes
Number of Outputs	1	1
Operating Temperature Range, °C	0 to 85	0 to 85
Output Current, A	7	7
Polyphase	yes	yes
Switch Current, A	13	13
Synchronous	yes	yes
Topology	Buck	Buck
Vin Max, V	5.5	5.5
Vin Min, V	2.5	2.5
Vout Max, V	5.5	5.5
Vout Maximum	Vin	Vin
Vout Min, V	0.6	0.6

Eco Plan

	LTC3415EUHF#PBF	LTC3415EUHF#TRPBF
RoHS	Compliant	Compliant

Design Notes

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Cascadable 7A Point-of-Load Monolithic Buck Converter &mdash DN387
PDF, 106 Kb, File published: Feb 23, 2006
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advertisement Cascadable 7A Point-of-Load Monolithic Buck Converter
Design Note 387
Peter Guan
Introduction
Easy-to-use and compact point-of-load power supplies
are necessary in systems with widely distributed, high
current, low voltage loads. The LTCВ® 3415 provides a
compact, simple and versatile solution. It includes a pair
of integrated complementary power MOSFETs (32mО©
top and 25mО© bottom) and requires no external sense
resistor. A complete design requires an inductor and
input/output capacitors, and thatвЂ™s it. The result is a fast,
constant frequency, 7A current mode DC/DC switching
regulator.
Features
The overall solution is extremely compact since the
LTC3415вЂ™s 5mm Г— 7mm QFN package footprint is small
and its high operating frequency of 1.5MHz allows the
use of small low-proп¬Ѓle surface mount inductors and
ceramic capacitors. For loads higher than 7A, multiple
LTC3415s can be cascaded to share the load while running mutually anti-phase, which reduces overall ripple
at both the input and the output.
Other features include: Spread spectrum operation to reduce system noise Output tracking for controlled VOUT ramp-up and …

Articles

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Cascadable, 7A Point-of-Load Monolithic Buck Converter &mdash LT Journal
PDF, 313 Kb, File published: Mar 28, 2006
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L DESIGN FEATURES Cascadable, 7A Point-of-Load
by Peter Guan
Monolithic Buck Converter
Introduction
Easy-to-use and compact point-ofload power supplies are necessary
in systems with widely distributed,
high current, low voltage loads. The
LTC3415 provides a compact, simple,
complete and versatile solution. It
includes a pair of integrated complementary power MOSFETs (32mО© top
and 25mО© bottom) and requires no
external sense resistor. A complete
design involves choosing an inductor
and input/output capacitors, and
thatвЂ™s it. The result is a fast, constant
frequency, current mode, 7A DC/DC
switching regulator. 0.1ВµF 47ВµF
6.3V
3x 38
1
3
4
5 10pF 6 …

Model Line

Series: LTC3415 (2)

LTC3415EUHF#PBF LTC3415EUHF#TRPBF

Manufacturer's Classification

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

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