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EMP891X pdf datasheet
消耗积分:5 |
格式:rar |
大小:666 |
2008-08-13
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The EMP891X series is a family of CMOS linear regulators,
which include EMP8915 and EMP8916, featuring
ultra-high power supply rejection ratio, low output
voltage noise, low dropout voltage, low quiescent
current and fast transient response. It guarantees
delivery of 150mA output current, and supports preset
1.2V, 1.3V, 1.5V, 1.8V, 2.5V, 2.8V, 2.85V output voltage
versions.
Based on its low quiescent current consumption and its
less than 1μA shutdown mode of logical operation, the
EMP891X is ideal for battery-powered applications. The
ground current increases only slightly in dropout, further
prolonging the battery life.
EMP891X provides fast turn-on by using dedicated
circuitry to pre-charge an optional external bypass
capacitor. This bypass capacitor is used to reduce the
output voltage noise without adversely affecting the
load transient response. The high power supply rejection
ratio of the EMP891X holds well for low input voltages
typically encountered in battery- operated systems. The
regulator is stable with small ceramic capacitive loads
(2.26F typical).
Additional features include regulation fault detection,
bandgap voltage reference, constant current limiting
and thermal overload protection. Available in miniature
which include EMP8915 and EMP8916, featuring
ultra-high power supply rejection ratio, low output
voltage noise, low dropout voltage, low quiescent
current and fast transient response. It guarantees
delivery of 150mA output current, and supports preset
1.2V, 1.3V, 1.5V, 1.8V, 2.5V, 2.8V, 2.85V output voltage
versions.
Based on its low quiescent current consumption and its
less than 1μA shutdown mode of logical operation, the
EMP891X is ideal for battery-powered applications. The
ground current increases only slightly in dropout, further
prolonging the battery life.
EMP891X provides fast turn-on by using dedicated
circuitry to pre-charge an optional external bypass
capacitor. This bypass capacitor is used to reduce the
output voltage noise without adversely affecting the
load transient response. The high power supply rejection
ratio of the EMP891X holds well for low input voltages
typically encountered in battery- operated systems. The
regulator is stable with small ceramic capacitive loads
(2.26F typical).
Additional features include regulation fault detection,
bandgap voltage reference, constant current limiting
and thermal overload protection. Available in miniature
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