TC1263 Datasheet, PDF (1/14 Pages) Microchip Technology – 500mA Fixed Output CMOS LDO with Shutdown

TC1263
500mA Fixed Output CMOS LDO with Shutdown
Features
• 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)
Applications
• Battery Operated Systems
• Portable Computers
• Medical Instruments
• Instrumentation
• Cellular/GSM/PHS Phones
• Linear Post-Regulators for SMPS
• Pagers
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°C to +125°C
-40°C to +125°C
-40°C to +125°C
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
5-Pin DDPAK
FRONT VIEW
TAB IS GND
5-Pin TO-220
TAB IS GND
TC1263
TC1263
12 345
12345
8-Pin SOIC
V_OUT 1
GND 2
NC 3
BYPASS 4
TC1263
8 V_IN
7 NC
6 SHDN
5 ERROR
General Description
The TC1263 is a fixed output, high accuracy (typically
±0.5%) CMOS low dropout regulator. Designed
specifically for battery-operated systems, the TC1263’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).
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 1µF and has a maximum
output current of 500mA. It is available in 8-Pin SOIC,
5-Pin TO-220 and 5-Pin DDPAK packages.
Typical Application
V_IN
V_IN
V_{OUT +}
V_OUT
TC1263
C_OUT
1µF
GND
SHDN
SHDN
© 2002 Microchip Technology Inc.
DS21374B-page 1