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BQ8211 Datasheet

  • BQ8211

  • Low Dropout 300mA Voltage Regulator with Enable

  • 9頁

  • ACUTECH

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BQ8211
Low Dropout
300mA Voltage Regulator
with Enable
Product Specification
Revision 1.3
September 13, 2006
General Description
The BQ8211 is a low dropout voltage regulator
capable of delivering
300 mA
to the load. It is
adjustable and can set a precise voltage from
1.175V to 15V with two external resistors. The
BQ8211 meets all specifications down to 1.175V
output, unlike CMOS LDO鈥檚 which loose
performance with outputs below 2.25V.
The
enable
pin provides a remote turn-off for low
power consumption. It draws virtually zero current
while in shutdown mode.
To assure accuracy within
2% over temperature,
the heart of the BQ8211 is a self-correcting
AcuRef鈩?bandgap reference.
On-chip current limit and thermal shutdown with
hysteresis protects against any combination of
overload and ambient temperature that might
cause the junction temperature to exceed safe
limits.
Applications
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Graphic cards and PC motherboards
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Cell Phones
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DVD video player
Replacement for:
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LX8211
Features
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Low dropout voltage (980mV at
300 mA)
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Enable pin implements sequencing
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Vout tolerance less than
2 %
over
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鈥?/div>
鈥?/div>
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temperature
Featured in the very small
SOT-23
package
Stable with low cost 1
碌
F capacitor
Low ground current
Thermal protection with hysteresis
Short circuit protection
RoHS compliant
available
Typical Application
www.acutechnology.com
BQ8211

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