TC1264_06 Datasheet, PDF (1/18 Pages) Microchip Technology – 800 mA Fixed-Output CMOS LDO with Shutdown

TC1264
800 mA Fixed-Output CMOS LDO with Shutdown
Features
• Very Low Dropout Voltage
• 800 mA Output Current
• High Output Voltage Accuracy
• Standard or Custom Output Voltages
• Overcurrent and Overtemperature Protection
Applications
• Battery Operated Systems
• Portable Computers
• Medical Instruments
• Instrumentation
• Cellular/GSM/PHS Phones
• Linear Post-Regulators for SMPS
• Pagers
Typical Application
V_IN
V_IN
V_OUT
+
C₁
V_OUT
TC1264
1 µF
GND
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 80 µA 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 450 mV 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 800 mA. It is available in 3-Pin
SOT-223, 3-Pin TO-220 and 3-Pin DDPAK packages.
Package Type
3-Pin TO-220
TAB IS GND
3-Pin DDPAK
FRONT VIEW
TC1264
TC1264
12 3
12 3
3-Pin SOT-223
FRONT VIEW
3 V_OUT
2 GND
TC1264 ^{1 VIN}
© 2006 Microchip Technology Inc.
DS21375C-page 1