LTC3428 datasheet(1/12 Pages) LINER

tên linh kiện	LTC3428

Giải thích chi tiết về linh kiện	4A, 2MHz Dual Phase Step-Up DC/DC Converter in 3mm 3mm DFN

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nhà sản xuất	LINER [Linear Technology]

Trang chủ	http://www.linear.com

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LTC3428

1

3428fb

TYPICAL APPLICATION

DESCRIPTION

4A, 2MHz Dual Phase

Step-Up DC/DC Converter

in 3mm × 3mm DFN

The LTC®3428 is a 2-phase, current mode boost con-

verter, capable of supplying 2A at 5V from a 3.3V input.

Two 93mΩ, 2A N-channel MOSFET switches allow the

LTC3428 to deliver high efﬁciency from input voltages as

low as 1.6V.

External parts count and size are minimized by a 1MHz

switching frequency and a 2-phase design. Two phase

operation signiﬁcantly reduces peak inductor currents and

capacitor ripple current, doubling the effective switching

frequency and minimizing inductor and capacitor size.

External compensation allows the feedback loop response

to be optimized for a particular application.

Other features include: an active low shutdown pin re-

duces supply current to below 1μA, internal soft-start,

antiringing control and thermal shutdown. The LTC3428

is available in a low proﬁle (0.75mm) 10-lead (3mm ×

3mm) DFN package.

3.3V to 5V at 2A Converter

L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other

trademarks are the property of their respective owners.

FEATURES

APPLICATIONS

n High Efﬁciency: Up to 92%

n 2-Phase Control Reduces Output Voltage Ripple

n 5V at 2A from 3.3V Input

n 3.3V at 1.5A from 1.8V Input

n 1.6V to 5.25V Adjustable Output Voltage

n 1.6V to 4.5V Input Range

n Internal Soft-Start Operation

n Low Shutdown Current: <1μA

n Uses Small Surface Mount Components

n 10-Pin 3mm × 3mm DFN Package

n Networking Equipment

n Handheld Instruments

n Digital Cameras

n Distributed Power

n Local 3.3V to 5V Conversion

VOUT

SWA

SWB

FB

PGNDB

VIN

SHDN

VC

AGND

PGNDA

LTC3428

383k

121k

22μF****

22pF

10k

1000pF

4.7μF***

VIN

3.3V

VOUT

5V/2A

3428 TA01

2.2μH*

OFF ON

TOKO FDV06302R2

PHILIPS PMEG1020

TAIYO YUDEN X5R JMK212BJ475MD

TAIYO YUDEN X5R JMK316BJ226ML

*

**

***

****

**

LOAD CURRENT (A)

0.1

95

90

85

80

75

70

65

60

55

50

45

12

3428 TA02

VIN = 3.3V

VOUT = 5V

L = 2.2μH

Efﬁciency vs Load Current

Số phần tương tự - LTC3428

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Linear Technology	LTC3428	213Kb / 12P	4A, 2MHz Dual Phase Step-Up DC/DC Converter in 3mm 3mm DFN
Analog Devices	LTC3428	808Kb / 29P	8V, 12A, 2-Phase Low IQ Synchronous Boost Converter Rev B
Linear Technology	LTC3428EDD	213Kb / 12P	4A, 2MHz Dual Phase Step-Up DC/DC Converter in 3mm 3mm DFN

More results

Mô tả tương tự - LTC3428

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Linear Technology	LTC3428	213Kb / 12P	4A, 2MHz Dual Phase Step-Up DC/DC Converter in 3mm 3mm DFN
	LTC3526-2	269Kb / 16P	500mA 2MHz Synchronous Step-Up DC/DC Converters in 2mm X 2mm DFN
	LTC3528	268Kb / 16P	1A, 1MHz Synchronous Step-Up DC/DC Converters in 3mm 횞 2mm DFN
	LTC3528B-2	225Kb / 16P	1A, 2MHz Synchronous Step-Up DC/DC Converter in 2mm 횞 3mm DFN
	LTC3528-2	259Kb / 16P	1A, 2MHz Synchronous Step-Up DC/DC Converter in 2mm 횞 3mm DFN
SiGe Semiconductor, Inc...	AATIAN41	111Kb / 4P	Low Voltage 2MHz Step-Up DC/DC Converter
Linear Technology	LTC3529	216Kb / 12P	1.5A, 1.5MHz Step-Up DC/DC Converter in 2mm 3mm DFN
	LTC3528-2	401Kb / 18P	1A, 2MHz Synchronous Step-Up DC/DC Converter
	LTC3528B-2	317Kb / 18P	1A, 2MHz Synchronous Step-Up DC/DC Converter
	LT3686	519Kb / 28P	37V/1.2A Step-Down Regulator in 3mm 3mm DFN

More results

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