TC2117 Datasheet, PDF (1/12 Pages) Microchip Technology – 800mA Fixed Low Dropout Positive Regulator

TC2117
800mA Fixed Low Dropout Positive Regulator
Features
• Fixed Output Voltages: 1.8V, 2.5V, 3.0V, 3.3V
• Very Low Dropout Voltage
• Rated 800mA Output Current
• High Output Voltage Accuracy
• Standard or Custom Output Voltages
• Over-Current and Over-Temperature Protection
• Space Saving SOT-223 Package
Applications
• 5V to 3.3V Linear Regulator
• Portable Computers
• Instrumentation
• Battery Operated Systems
• Linear Post-Regulator for SMPS
• Core Voltage Supply for FPGAs, PLDs, CPUs,
DSPs
Device Selection Table
Part Number Package
TC2117-xxVDB 3-Pin SOT-223
TC2117-xxVEB 3-Pin DDPAK
Junction
Temperature Range
-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 SOT-223
Front View
TC2117
V_IN
V_OUT
GND
3-Pin DDPAK
Front View
Tab is V_OUT
TC2117
12 3
General Description
The TC2117 is a fixed, high accuracy (typically ±0.5%)
CMOS low dropout regulator. Designed specifically for
battery operated systems, the TC2117’s CMOS con-
struction eliminates wasted ground current, signifi-
cantly extending battery life. Total supply current is
typically 80µA at full load (20 to 60 times lower than in
bipolar regulators).
TC2117 key features include ultra low noise, very low
dropout voltage (typically 450mV at full load), and fast
response to step changes in load. The TC2117 incor-
porates both over-temperature and over-current pro-
tection. The TC2117 is stable with an output capacitor
of only 1µF and has a maximum output current of
800mA. This device is available in 3-Pin SOT-223, and
3-Pin DDPAK packages.
Typical Application
V_IN
V_IN
V_OUT
TC2117
GND
V_OUT
C1
1µF
© 2002 Microchip Technology Inc.
DS21665B-page 1