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參數(shù)資料
| 型號： | ST730 |
| 廠商： | International Rectifier |
| 英文描述： | MOSFET, N SO-8MOSFET, N SO-8; Transistor type:MOSFET; Transistor polarity:N; Voltage, Vds max:100V; Case style:SO-8; Current, Id cont:6.9A; Current, Idm pulse:30A; Power, Pd:1.8W; Resistance, Rds on:0.034R; SMD:1; Charge, gate |
| 中文描述： | 相位控制晶閘管曲棍球北辰版本 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 260K |
| 代理商： | ST730 |
1/9
January 2003
I
UP TO 450mA LOAD CURRENTS
200kHz HIGH-FREQUENCY
CURRENT-MODE PWM
85% TO 96% EFFICIENCIES
33
μ
H OR 100
μ
H PRE-SELECTED
INDUCTOR VALUE, NO COMPONENT
DESIGN REQUIRED
0.8mA QUIESCENT CURRENT
0.3μA SHUTDOWN SUPPLY CURRENT
ADJUSTABLE OUTPUT VOLTAGE
OVERCURRENT, SOFT-START AND
UNDERVOLTAGE LOCKOUT PROTECTION
CYCLE-BY-CYCLE CURRENT LIMITING
PACKAGE AVAILABLE: DIP-8 AND SO-8
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DESCRIPTION
The ST730A is a 5V output CMOS, step-down
switching regulator. The ST730A accepts inputs
between 5.2V and 11V and delivers 450mA.
Typical efficiencies are 85% to 96%.
Quiescent supply current is 0.8mA and only 0.3
μ
A
in shutdown mode. The output does not exhibit
frequency over this specified range. Pulse-width
modulation (PWM) current-mode control provides
precise output regulation and excellent transient
responses.
Output
voltage
guaranteed to be ±5% over line, load, and
temperature varations.
Fixed-frequency
switching
subharmonic ruipple allows easy filtering of output
ripple and noise, as well as the use of small
external components. This regulators require only
a
single
inductor
value
applications, so no inductor design is necessary.
Typical applications are: Cellular phones & radios,
portable Instruments, Portable Communications
Equipments and Computer Peripherals.
accuracy
is
and
absence
of
to
work
in
most
ST730A
5V STEP-DOWN,
CURRENT-MODE PWM DC-DC CONVERTERS
SCHEMATIC DIAGRAM
DIP-8
SO-8
相關PDF資料 |
PDF描述 |
|---|---|
| ST730C | MOSFET; Transistor Polarity:Dual N/P Channel; Drain Source Voltage, Vds:20V; Continuous Drain Current, Id:4.5A; On-Resistance, Rds(on):0.065ohm; Rds(on) Test Voltage, Vgs:4.5V; Package/Case:8-SOIC; Drain-Source Breakdown Voltage:20V |
| ST735CD-TR | -5V INVERTING, NEGATIVE OUTPUT CURRENT-MODE PWM REGULATOR |
| ST735C | Automotive Fuse; Current Rating:5A; Voltage Rating:32V; Fuse Type:Fast Acting; Body Material:Plastic; Fuse Terminals:Blade; Length:15.41mm; Series:297; Fuse Size/Group:15.41 x 10.92 x 3.81mm |
| ST735 | -5V INVERTING, NEGATIVE OUTPUT CURRENT-MODE PWM REGULATOR |
| ST735CD | -5V INVERTING, NEGATIVE OUTPUT CURRENT-MODE PWM REGULATOR |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ST7-30 | 制造商:SUPERWORLD 制造商全稱:Superworld Electronics 功能描述:POWER TRANSFORMER |
| ST-7300 | 制造商:GC Electronics 功能描述: |
| ST730186-3 | 制造商:KEMET Corporation 功能描述: 制造商:KET 功能描述: |
| ST730268-1 | 制造商:KEMET Corporation 功能描述: 制造商:KET 功能描述: |
| ST730502-3 | 制造商:KEMET Corporation 功能描述: 制造商:KET 功能描述: |
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