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Extremely Low Supply Current (50碌A, Typ.)
Very Low Dropout Voltage
300mA Output Current
High Output Voltage Accuracy
Standard or Custom Output Voltages
Over Current and Over Temperature Protection
General Description
The TC1108 is a fixed output, high accuracy (typically
鹵0.5%) CMOS low dropout regulator. Total supply
current is typically 50碌A at full load (20 to 60 times
lower than in bipolar regulators).
TC1108 key features include ultra low noise operation,
very low dropout voltage (typically 240mV at full load),
and fast response to step changes in load.
The TC1108 incorporates both over temperature and
over current protection. The TC1108 is stable with an
output capacitor of only 1碌F and has a maximum
output current of 300mA. It is available in a SOT-223
package.
Applications
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Battery Operated Systems
Portable Computers
Medical Instruments
Instrumentation
Cellular/GSM/PHS Phones
Linear Post-Regulators for SMPS
Pagers
Typical Application
V
IN
1
V
IN
V
OUT
3
+
C1
1碌F
V
OUT
Device Selection Table
Part Number
TC1108-xxVDB
Package
3-Pin SOT-223
Junction
Temp. Range
-40擄C to +125擄C
2
TC1108
GND
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.
Package Type
SOT-223
TC1108VDB
1
2
3
V
IN
GND V
OUT
2002 Microchip Technology Inc.
DS21357B-page 1
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