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TC1263 Datasheet

  • TC1263

  • 500mA Fixed Output CMOS LDO with Shutdown

  • 486.98KB

  • 14頁(yè)

  • MICROCHIP   MICROCHIP

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TC1263
500mA Fixed Output CMOS LDO with Shutdown
Features
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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 Can Be Used as a Low Battery
Detector (SOIC only)
Package Type
5-Pin DDPAK
FRONT VIEW
TAB IS GND
TAB IS GND
5-Pin TO-220
TC1263
1 2
3 4 5
TC1263
1 2 3 4 5
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Battery Operated Systems
Portable Computers
Medical Instruments
Instrumentation
Cellular/GSM/PHS Phones
Linear Post-Regulators for SMPS
Pagers
SHDN
GND
V
IN
8-Pin SOIC
V
OUT
GND
NC
BYPASS
1
2
3
4
8
V
IN
NC
SHDN
ERROR
TC1263
Device Selection Table
Part Number
TC1263-xxVOA
TC1263-xxVAT
TC1263-xxVET
Package
8-Pin SOIC
5-Pin TO-220
5-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
General Description
The TC1263 is a fixed output, high accuracy (typically
鹵0.5%) CMOS low dropout regulator. Designed
specifically for battery-operated systems, the TC1263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).
TC1263 key features include ultra low noise operation,
very low dropout voltage (typically 350mV at full load),
and fast response to step changes in load.
The TC1263 incorporates both over temperature and
over current protection. The TC1263 is stable with an
output capacitor of only 1碌F and has a maximum
output current of 500mA. It is available in 8-Pin SOIC,
5-Pin TO-220 and 5-Pin DDPAK packages.
NOTE:
xx indicates output voltages.
Available Output Voltages: 2.5, 2.8, 3.0, 3.3, 5.0.
Other output voltages are available. Please contact Microchip
Technology Inc. for details.
Typical Application
V
IN
V
IN
V
OUT
+
C
OUT
1碌F
SHDN
V
OUT
TC1263
GND
SHDN
2002 Microchip Technology Inc.
BYP
SHDN
GND
V
IN
V
OUT
7
6
5
V
OUT
BYP
Applications
DS21374B-page 1
漏

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