ST5R28UTR

更新时间： 2024-11-12 13:00:47

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		转换器
页数	文件大小	规格书
15页	681K
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中文翻译

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数据手册

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ST5R28UTR 数据手册

ST5R00

SERIES

MICROPOWER VFM STEP-UP DC/DC CONVERTER

VERY LOW SUPPLY CURRENT

REGULATED OUTPUT VOLTAGE

WIDE RANGE OF OUTPUT VOLTAGE

AVAILABLE (2.5V, 2.8V, 3.0V, 3.3V, 5.0V)

OUTPUT VOLTAGE ACCURACY ±5%

OUTPUT CURRENT UP TO 100mA

LOW RIPPLE AND LOW NOISE

VERY LOW START-UP VOLTAGE

SOT23-5L

HIGH EFFICIENCY (V

= 5V TYP. 87%)

OUT

FEW EXTERNAL COMPONENTS

VERY SMALL PACKAGE: SOT23-5L

the use of small, low cost inductors. Only three

external components are needed: an inductor a

diode and an output capacitor.

The ST5R00 is suitable to be used in a battery

powered equipment where low noise, low ripple

and ultra low supply current are required. The

ST5R00 is available in very small packages:

SOT23-5L.

Typical applications are pagers, cameras & video

camera, cellular telephones, wireless telephones,

palmtop computer, battery backup supplies,

battery powered equipment.

DESCRIPTION

The ST5R00 is an high efficiency VFM Step-up

DC/DC converter for small, low input voltage or

battery powered systems with ultra low quiescent

supply current. The ST5Rxx accept a positive

input voltage from start-up voltage to V

convert it to a higher output voltage in the 2.5 to

and

OUT

5V range.

The ST5R00 combine ultra low quiescent supply

current and high efficiency to give maximum

battery life. The high switching frequency and the

internally limited peak inductor current, permits

Figure 1: Schematic Diagram

Rev. 6

1/15

June 2005

12 3 4 5 6 7...15

中文翻译

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