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TC1268-2.5VOA Folha de dados(PDF) 1 Page - Microchip Technology

Nome de Peças TC1268-2.5VOA
Descrição Electrónicos  500mA Fixed Output, Fast Response CMOS LDO with Shutdown
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Fabricante Electrônico  MICROCHIP [Microchip Technology]
Página de início  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC1268-2.5VOA Folha de dados(HTML) 1 Page - Microchip Technology

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© 2002 Microchip Technology Inc.
DS21379B-page 1
TC1268
Features
• Very Low Dropout Voltage
• 500mA Output Current
• High Output Voltage Accuracy
• Standard or Custom Output Voltages
• Over Current and Over Temperature Protection
• SHDN Input for Active Power Management
• ERROR Output to Detect Low Battery
•5
µsec (typical) Wake-up Time from SHDN
Applications
• RAMBUS Memory Module
• Battery-Operated Systems
• Portable Computers
• Medical Instruments
• Instrumentation
• Cellular/GSM/PHS Phones
• Linear Post-Regulator for SMPS
• Pagers
• Digital Cameras
Device Selection Table
*Other output voltages and package options are available.
Please contact Microchip Technology Inc. for details.
Package Type
General Description
The TC1268 is a fixed output, fast turn-on, high
accuracy
(typically
±0.5%)
CMOS
low
dropout
regulator. Designed specifically for battery-operated
systems, the TC1268’s CMOS construction eliminates
wasted ground current, significantly extending battery
life. Total supply current is typically 80
µA at full load (20
to 60 times lower than in bipolar regulators).
TC1268’s key features include ultra low noise, very low
dropout voltage (typically 350mV at full load), and
fast response to step changes in load. The TC1268
also has a fast wake-up response time (5
µsec typically)
when
released
from
shutdown.
The
TC1268
incorporates both over temperature and over current
protection. The TC1268 is stable with an output
capacitor of only 1
µF and has a maximum output
current of 500mA.
Typical Application
Part Number
Output*
Voltage
(V)
Package
Junction
Temp. Range
TC1268-2.5VOA
2.5
8-Pin SOIC -40°C to +125°C
1
2
3
4
8
7
6
5
TC1268
NC
SHDN
8-Pin SOIC
GND
NC
BYPASS
VOUT
VIN
ERROR
TC1268
VIN
VOUT
COUT
1
µF
GND
VOUT
VIN
SHDN
SHDN
+
500mA Fixed Output, Fast Response CMOS LDO with Shutdown


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