Datasheet > LTM4693

LTM4693

更新时间： 2024-09-25 14:58:27

品牌	Logo	应用领域
亚德诺 - ADI		稳压器
页数	文件大小	规格书
22页	1224K
描述
超薄低VIN、2A降压-升压μModule稳压器

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中文翻译

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数据手册

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LTM4693 数据手册

LTM4693

Ultrathin Low V , 2A Buck-Boost

µModule Regulator

FEATURES

DESCRIPTION

The LTM^®4693 is an ultrathin, highly efficient, 2A buck-

Wide Input Voltage Range: 2.6V to 5.5V

Adjustable Output Voltage Range: 1.8V to 5.5V

boost µModule^®DC/DC converter that operates from

2A of Continuous Output Current with V ≥ V

input voltages above, below or equal to the output volt-

age. Included in the package are the switching control-

ler, power MOSFETs, inductor and support components.

The LTM4693’s advanced topology provides a continu-

OUT

(Buck Mode and Buck-Boost Mode);

Minimum 1A Continuous Output Current

with V < V

(Boost Mode).

OUT

Low Ripple Buck-Boost Architecture

ous transfer through all operating modes. V operation

Programmable Soft-Start and V UVLO

from 2.6V to 5.5V covers a wide variety of power sources

including typical 3.3V and 5V. Output voltage ranging

from 1.8V to 5.5V is set by an external resistor. Only a few

external components are needed for a typical application.

Burst Mode I 15μA for High Efficiency at Light Loads

Ultrathin, Small Surface Mount Footprint

3.5mm × 4mm × 1.25mm LGA Package

Selectable Burst Mode^®operation reduces quiescent cur-

rent to 15μA, ensuring high efficiency across the entire

load range. To optimize applications for highest efficiency,

the switching frequency can be programmed between

1MHz to 4MHz or synchronized to an external clock for

noise sensitive circuits.

APPLICATIONS

Telecom, Datacom (Optical Modules) and

Industrial Equipment

Medical and Industrial Instruments

Wireless RF Transmitter

Battery Powered System

LTM4693 is available in ultrathin, 3.5mm × 4mm ×1.25mm

LGA Package. The LTM4693 is Pb-free and RoHS compliant.

All registered trademarks and trademarks are the property of their respective owners.

TYPICAL APPLICATION

3.3V_OUT, 2A DC/DC µModule Regulator

Efficiency at 3.3V_OUT

100

OUT

2.6V to 5.5V

3.3V/1.5A

22µF

(2A AT BUCK)

26.2k

0.1µF

LTM4693

GND

FREQ

MODE/SYNC

RUN/UVLO

COMP

PINS NOT USED:

SW1, SW2

10k

2.2nF

4693 TA01a

= 2.6V, 1MHz

= 3.3V, 1MHz

= 4.2V, 1MHz

= 5V, 1MHz

0.5

1.5

LOAD CURRENT (A)

4693 TA01a

Rev. 0

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