TC1262-3.3VDBTR Datasheet, PDF (1/12 Pages) Microchip Technology – 500mA Fixed Output CMOS LDO

TC1262
500mA Fixed Output CMOS LDO
Features
• Very Low Dropout Voltage
• 500mA 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
TC1262-xxVDB
TC1262-xxVAB
TC1262-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: 2.5, 2.8, 3.0, 3.3, 5.0.
Other output voltages are available. Please contact Microchip
Technology Inc. for details.
Package Type
3-Pin TO-220
Tab is GND
3-Pin DDPAK
Front View
Tab is GND
TC1262
12 3
TC1262
12 3
3-Pin SOT-223
Front View
3 VOUT
2 GND
TC1262 ^{1 VIN}
General Description
The TC1262 is a fixed output, high accuracy (typically
±0.5%) CMOS low dropout regulator. Designed specif-
ically for battery-operated systems, the TC1262’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).
TC1262 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 TC1262 incorporates both over temperature and
over current protection. The TC1262 is stable with an
output capacitor of only 1µF and has a maximum
output current of 500mA. 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 +}
V_OUT
TC1262
C1
1µF
GND
© 2002 Microchip Technology Inc.
DS21373B-page 1