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ST750A pdf,ST750A datasheet

消耗积分:3 | 格式:rar | 大小:555 | 2008-09-06

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The ST750A is an adjustable output CMOS,
step-down switching regulator. The ST750A
accepts inputs between 4V and 11V and delivers
450mA. Typical efficiencies are 85% to 96%.
Quiescent supply current is 0.8mA and only 0.3mA
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 accuracy is
guaranteed to be ±4.5% plus feedback resistor
tolerance over line, load, and temperature
varations.
Fixed-frequency switching and absence of
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 to work in most
applications, so no inductor design is necessary.
Typical applications are: Cellular phones & radios,
portable Instruments, Portable Communications
Equipments and Computer Peripherals.
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