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參數(shù)資料
| 型號： | ST5R00 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | MICROPOWER VFM STEP-UP DC/DC CONVERTER |
| 中文描述： | 微功耗衡工量值式升壓型DC / DC變換器 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大?。?/td> | 680K |
| 代理商： | ST5R00 |
1/15
June 2005
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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
HIGH EFFICIENCY (V
OUT
= 5V TYP. 87%)
FEW EXTERNAL COMPONENTS
VERY SMALL PACKAGE: SOT23-5L
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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
OUT
and
convert it to a higher output voltage in the 2.5 to
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
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.
ST5R00
SERIES
MICROPOWER VFM STEP-UP DC/DC CONVERTER
Figure 1: Schematic Diagram
SOT23-5L
Rev. 6
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| ST5R007B | 制造商:US Sensor 功能描述:CURRENT LIMITER INRUSH 5 OHM 7A |
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| ST5R25MTR | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 2.5 Volt 100mA RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
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