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PDF TC1264 Data sheet ( Hoja de datos )
| Número de pieza | TC1264 | |
| Descripción | 800mA Fixed Output CMOS LDO | |
| Fabricantes | Microchip Technology | |
| Logotipo |  |
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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 VIN
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
VIN VIN
VOUT
TC1264
GND
VOUT
C1
1µF
© 2002 Microchip Technology Inc.
DS21375B-page 1
1 page  
TC1264
5.0 TYPICAL CHARACTERISTICS
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein are
not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
Line Regulation vs. Temperature
0.020
0.018
0.016
0.014
0.012
0.010
0.008
0.006
0.004
0.002
0.000
-40°C
0°C 25°C 70°C 85°C 125°C
TEMPERATURE (°C)
Output Noise vs. Frequency
10.0
RLOAD = 50µΩ
COUT = 1µF
1.0
0.1
0.0
0.01
0.01 1
10 100
FREQUENCY (kHz)
1000
Load Regulation vs. Temperature
0.0100
0.0090
0.0080
0.0070
0.0060
0.0050 VOUT = 3V
0.0040
1mA to 800mA
0.0030
0.0020
0.0010
0.0100
-40°C
0°C 25°C 70°C 85°C 125°C
TEMPERATURE (°C)
IDD vs. Temperature
150
135
120
105
90
VOUT = 3V
75
60
45
30
15
0
-40°C
0°C 25°C 70°C 85°C 125°C
TEMPERATURE (°C)
0.600
0.550
0.500
LOAD
125°C
0.450
0.400
0.350
0.300
0.250
0°C
0.200
0.150
-40°C
0.100
0.050
0.000
0 100 200 300 400 500 600 700 800
ILOAD (mA)
3.030
3.020
3.010
3.000
2.990
2.980
2.970
3.0V VOUT vs. Temperature
ILOAD = 0.1mA
ILOAD = 300mA
ILOAD = 500mA
2.960
2.950
2.940
ILOAD = 800mA
2.930
2.920
-40°C 0°C 25°C 70°C 85°C 125°C
TEMPERATURE (°C)
© 2002 Microchip Technology Inc.
DS21375B-page 5
5 Page 
TC1264
Information contained in this publication regarding device
applications and the like is intended through suggestion only
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
No representation or warranty is given and no liability is
assumed by Microchip Technology Incorporated with respect
to the accuracy or use of such information, or infringement of
patents or other intellectual property rights arising from such
use or otherwise. Use of Microchip’s products as critical com-
ponents in life support systems is not authorized except with
express written approval by Microchip. No licenses are con-
veyed, implicitly or otherwise, under any intellectual property
rights.
Trademarks
The Microchip name and logo, the Microchip logo, FilterLab,
KEELOQ, microID, MPLAB, PIC, PICmicro, PICMASTER,
PICSTART, PRO MATE, SEEVAL and The Embedded Control
Solutions Company are registered trademarks of Microchip Tech-
nology Incorporated in the U.S.A. and other countries.
dsPIC, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB,
In-Circuit Serial Programming, ICSP, ICEPIC, microPort,
Migratable Memory, MPASM, MPLIB, MPLINK, MPSIM,
MXDEV, MXLAB, PICC, PICDEM, PICDEM.net, rfPIC, Select
Mode and Total Endurance are trademarks of Microchip
Technology Incorporated in the U.S.A.
Serialized Quick Turn Programming (SQTP) is a service mark
of Microchip Technology Incorporated in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2002, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
© 2002 Microchip Technology Inc.
Microchip received QS-9000 quality system
certification for its worldwide headquarters,
design and wafer fabrication facilities in
Chandler and Tempe, Arizona in July 1999
and Mountain View, California in March 2002.
The Company’s quality system processes and
procedures are QS-9000 compliant for its
PICmicro® 8-bit MCUs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals,
non-volatile memory and analog products. In
addition, Microchip’s quality system for the
design and manufacture of development
systems is ISO 9001 certified.
DS21375B-page 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet TC1264.PDF ] | |
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