Datasheet > CTX20-1

CTX20-1

更新时间： 2024-11-06 23:14:35

品牌	Logo	应用领域
美高森美 - MICROSEMI		转换器电感器共模扼流圈
页数	文件大小	规格书
8页	198K
描述
1.0MHz Inverting DC/DC Converter

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中文翻译

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CTX20-1 数据手册

LX1734

1.0MHz Inverting DC/DC Converter

KEY FEATURES

DESCRIPTION

Fixed Frequency 1.0MHz

Operation

Very Low Noise: 1mV_P-POutput

Ripple Possible With Cuk

Topology

Stable Operation With Ceramic or

Tantalum Capacitors

-5V at 250mA from 5V Input

Uses Small Surface Mount L/C

Components

Wide Input Range: 4.2V to 8V

Low VCESAT Switch: 600mV at

600mA

6-Lead 3x3mm JEDEC MLPM

Package

The LX1734 is an inverting

DC/DC current-mode controller. With clean output free from low frequency

750mA integrated switch, the noise typically present with charge pump

Fixed frequency operation ensures a

LX1734 can generate large output solutions. The low impedance output

currents in a small footprint. The remains within 1% of nominal during

LX1734 minimizes external com- large load steps. The 18V switch allows

ponent size and cost by implementing high voltage outputs to be generated.

high switching frequency of

1.0MHz, while generating -5V at saving 6-lead 3x3 Jedec MO-229

250mA. package, which has the same footprint

When configured in the dual and lead spacing as the SOT-23A.

inductor inverting topology very low complete inverter function utilizes less

output voltage ripple approaching than 0.3²inches of PCB space.

1mV_P-Pcan be achieved when used in

conjunction with ceramic output

capacitors. The dual inductor can be

The LX1734 is available in the space

Functionally Compatible with

LT1611 or LT1931

implemented as a coupled or separate

cores.

APPLICATIONS/BENEFITS

IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com

Disk Drive MR Head Bias

Digital Camera CCD Bias

LCD Bias

GaAs FET Bias

Local -5V or -12V Supplies

PRODUCT HIGHLIGHT

L1A

22µH

L1B

22µH

1µF

V_IN= 5V

29.4k

V_IN

V_OUT= -5V

@ 150mA

LX1734

NFB

10µF

GND

10k

22µF

1000pF

Note: L1A and L1B are shown as coupled. Individual inductors can also be used.

C1, C2, C3 are ceramic capacitors

Figure 1

PACKAGE ORDER INFO

Plastic MLPL

6-Pin

T_A(°C)

RoHS Compliant / Pb-free

Transition DC: 0452

0 to 85

LX1734CLM

Note: Available in Tape & Reel. Append the letters “TR” to the

part number. (i.e. LX1734CLM-TR)

Rev. 3.0a, 2005-03-14

Microsemi

Microsemi Integrated Products

Page 1

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

12 3 4 5 6 7 8

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CTX20-10-52LP	COOPER	获取价格	General Purpose Inductor, 21.17uH, 20%, 1 Element, Iron-Core, RADIAL LEADED-2
CTX20-10-52LP-R	COOPER	获取价格	LOWCOST POWER INDUCTORS Toroidal Inductors
CTX20-10-52LP-R	EATON	获取价格	Form factor: 21.17 Type: 0
CTX20-10-52-R	COOPER	获取价格	LOWCOST POWER INDUCTORS Toroidal Inductors
CTX20-10-52-R	EATON	获取价格	Form factor: 21.17 Type: 0
CTX20-1-52LP	COOPER	获取价格	General Purpose Inductor, 20.22uH, 20%, 1 Element, Iron-Core, RADIAL LEADED-2
CTX20-1-52LP-R	COOPER	获取价格	LOWCOST POWER INDUCTORS Toroidal Inductors
CTX20-1-52LP-R	EATON	获取价格	Form factor: 20.22 Type: 0
CTX20-1-52M-R	COOPER	获取价格	LOWCOST POWER INDUCTORS Toroidal Inductors
CTX20-1-52M-R	EATON	获取价格	Form factor: 20.22 Type: 0

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