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PDF AQ533 Data sheet ( Hoja de datos )
| Número de pieza | AQ533 | |
| Descripción | Ultra-Low Dropout 500mA Voltage Regulator | |
| Fabricantes | Acutechnology Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AQ533 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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Product Specification
Revision 1.7
AQ533
Ultra-Low Dropout
500mA Voltage Regulator
September 13, 2006
General Description
The AQ533 is an ultra-low dropout voltage
regulator capable of delivering 500 mA to the
load. It is adjustable and can set a precise
voltage from 1.22V to 12V with two external
resistors. The AQ533 meets all specifications
down to 1.22V output, unlike CMOS LDO’s which
loose performance with outputs below 2.25V.
Applications
• Graphic cards
• PC motherboards
• Cell Phones
• DVD video player
The enable pin provides a remote turn-off for low
power consumption. It draws virtually zero current
in shutdown mode and implements Sequential,
Ratiometric, or Simultaneous sequencing
schemes. This also allows for a separate bias
connection from the pass transistor in order to
achieve ultra low dropout from VIN to VOUT.
Reverse current protection blocks current
flowing from VOUT to VIN when the AQ533 is
disabled. No current flows.
To assure accuracy within 1.5% over
temperature, the heart of the AQ533 is a self-
correcting AcuRef™ 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.
Features
• Low dropout voltage (350mV at 500 mA)
• Enable pin implements sequencing
• Reverse current protection
• Vout tolerance less than 1.5% over
temperature
• Featured in the very small SOT-23
package
• Stable with low cost 1µF capacitor
• Low ground current <100 µA
• Thermal protection with hysteresis
• Short circuit protection
• RoHS compliant available
Typical Application
www.acutechnology.com
www.DataSheet.in
AQ533
1 page  
Acutechnology Semiconductor Inc.
Application Notes
AQ533
www.acutechnology.com
www.DataSheet.in
5 Rev. 1.7 September 13, 2006
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet AQ533.PDF ] | |
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