TC1264 Datasheet, PDF (1/12 Pages) Microchip Technology – 800mA Fixed Output CMOS LDO

TC1264
800mA Fixed Output CMOS LDO
Features
• Very Low Dropout Voltage
• 800mA Output Current
• High Output Voltage Accuracy
• Standard or Custom Output Voltages
• Over Current and Over Temperature Protection
Applications
• Battery Operated Systems
• Portable Computers
• Medical Instruments
• Instrumentation
• Cellular/GSM/PHS Phones
• Linear Post-Regulators for SMPS
• Pagers
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°C to +125°C
-40°C to +125°C
-40°C to +125°C
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.
Package Type
3-Pin TO-220
TAB IS GND
TC1264
3-Pin DDPAK
FRONT VIEW
TAB IS GND
TC1264
12 3
12 3
3-Pin SOT-223
FRONT VIEW
3 VOUT
2 GND
1 V_IN
TC1264
General Description
The TC1264 is a fixed output, high accuracy (typically
±0.5%) CMOS low dropout regulator. Designed
specifically for battery-operated systems, the TC1264’s
CMOS construction eliminates wasted ground current,
significantly extending battery life. Total supply current
is typically 80µA 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 1µF 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.
Typical Application
V_IN
V_IN
V_OUT
TC1264
GND
V_OUT
C1
1µF
© 2002 Microchip Technology Inc.
DS21375B-page 1