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TC1264 Datasheet

  • TC1264

  • 800mA Fixed Output CMOS LDO

  • 450.19KB

  • 12頁

  • MICROCHIP   MICROCHIP

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TC1264
800mA Fixed Output CMOS LDO
Features
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Very Low Dropout Voltage
800mA Output Current
High Output Voltage Accuracy
Standard or Custom Output Voltages
Over Current and Over Temperature Protection
Package Type
3-Pin TO-220
TAB IS GND
3-Pin DDPAK
FRONT VIEW
TAB IS GND
TC1264
TC1264
Applications
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Battery Operated Systems
Portable Computers
Medical Instruments
Instrumentation
Cellular/GSM/PHS Phones
Linear Post-Regulators for SMPS
Pagers
1
2
3
1
2
3
V
OUT
V
IN
GND
3-Pin SOT-223
FRONT VIEW
3
TAB IS GND
V
OUT
2
GND
Device Selection Table
Part Number
TC1264-xxVDB
TC1264-xxVAB
TC1264-xxVEB
Package
3-Pin SOT-223
3-Pin TO-220
3-Pin DDPAK
Junction
Temp. Range
-40擄C to +125擄C
-40擄C to +125擄C
-40擄C to +125擄C
1
V
IN
TC1264
General Description
The TC1264 is a fixed output, high accuracy (typically
鹵0.5%) CMOS low dropout regulator. Designed
specifically for battery-operated systems, the TC1264鈥檚
CMOS construction eliminates wasted ground current,
significantly extending battery life. Total supply current
is typically 80碌A(chǔ) at full load (20 to 60 times lower than
in bipolar regulators).
TC1264 key features include ultra low noise operation,
very low dropout voltage (typically 450mV at full load),
and fast response to step changes in load.
The TC1264 incorporates both over temperature and
over current protection. The TC1264 is stable with an
output capacitor of only 1碌F and has a maximum
output current of 800mA. It is available in 3-Pin
SOT-223, 3-Pin TO-220 and 3-Pin DDPAK packages.
NOTE:
xx indicates output voltages.
Available Output Voltages: 1.8, 2.5, 3.0, 3.3.
Other output voltages are available. Please contact Microchip
Technology Inc. for details.
Typical Application
V
IN
V
IN
V
OUT
C1
1碌F
V
OUT
TC1264
GND
2002 Microchip Technology Inc.
DS21375B-page 1
V
OUT
V
IN
GND
漏

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