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參數資料
| 型號： | ST763AC |
| 廠商： | 意法半導體 |
| 英文描述： | MOSFET, N SO-8MOSFET, N SO-8; Transistor type:MOSFET; Transistor polarity:N; Voltage, Vds max:30V; Case style:SO-8; Current, Id cont:7.5A; Current, Idm pulse:50A; Power, Pd:1.4W; Resistance, Rds on:0.0135R; SMD:1; Charge, gate |
| 中文描述： | 3.3V的降壓電流模式PWM DC - DC變換器 |
| 文件頁數： | 1/10頁 |
| 文件大小： | 252K |
| 代理商： | ST763AC |
1/10
November 2000
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OUTPUT VOLTAGE 3.3V
SUPPLY VOLTAGE RANGE FROM 3.3V TO
11V
GUARANTEED OUTPUT CURRENT: 500mA
TYPICAL OPERATION FREQUENCY:
200KHz
VERY LOW QUIESCENT CURRENT: 0.6mA
ON MODE 0.2
μ
A OFF MODE
SWITCH ON/OFF CONTROL
TYPICAL EFFICENCY: 90%
OPERATING TEMPERATURE RANGE:
-40°C TO 85°C
AVAILABLE IN SO-8 AND DIP-8 PACKAGES
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DESCRIPTION
The ST763A is a step-down switching regulator . It
operates from 3.3V to 11V giving a fixed 3.3V
output voltage, delivering up to 500mA. The
mainly features are typical efficiency of 90%,
quiescent current of 0.6mA, and only 0.2
μ
A in
shut-down.
The PWM current mode control provides precise
output regulation and very good transient
response. Output voltage accuracy is guaranteed
to be
±
5% over line, load and temperature
variations. A minimum number of external
components is used and the fixed frequency
switching allows easy filtering of output ripple and
noise.
Other features of this ddevice are cycle-by-clicle
current limiting, overcurrent limiting, under voltage
lockout and programmable soft-start protection.
A 22
μ
H inductor works in most applications, so no
sophisticated design is necessary.
Package available are SO-8 and DIP-8.
Typical application are in 5V to 3.3V converters,
cellular phones, portable instruments, hand-held
computers, and peripherals.
ST763A
SERIES
3.3V STEP DOWN
CURRENT MODE PWM DC-DC CONVERTERS
SCHEMATIC DIAGRAM
DIP-8
SO-8
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ST763ACD | 功能描述:直流/直流開關轉換器 3.3 Volt Step-Down RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| ST763ACDTR | 功能描述:直流/直流開關轉換器 3.3 Volt Step-Down RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| ST763ACN | 功能描述:直流/直流開關轉換器 3.3 Volt Step-Down RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
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