TC1054 TelCom Semiconductor, TC1054 Datasheet - Page 7

• Manufacturer Part Number: TC1054
• Description: 50mA CMOS LDO WITH SHUTDOWN AND ERROR OUTPUT
• Manufacturer: TelCom Semiconductor

PIN CONFIGURATION
100mA CMOS LDO WITH SHUTDOWN
AND ERROR OUTPUT
100mA CMOS LDO WITH SHUTDOWN AND ERROR OUTPUT
ORDERING INFORMATION
Part No.
TC1055-2.5VCT
TC1055-2.7VCT
TC1055-3.0VCT
TC1055-3.3VCT
TC1055-5.0VCT
NOTE: *SOT-23A-5 is equivalent to the EIAJ (SC-74A)
TC1055-01 6/5/97
FEATURES
APPLICATIONS
NOTE: *SOT-23A-5 is equivalent to the EIAJ (SC-74A)
Zero Ground Current for Longer Battery Life
Very Low Dropout Voltage
Guaranteed 100mA Output
High Output Voltage Accuracy
Standard or Custom Output Voltages
Power-Saving Shutdown Mode
ERROR Output can be Used as a Low Battery
Detector, or Processor Reset Generator
Over-Current and Over-Temperature Protection
Space-Saving SOT-23A-5 Package
Pin Compatible Upgrades for Bipolar Regulators
Battery Operated Systems
Portable Computers
Medical Instruments
Instrumentation
Cellular/GSMS/PHS Phones
Linear Post-Regulators for SMPS
Pagers
** Other output voltages available. Please contact TelCom
Semiconductor for details
TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices
Voltage **(V) Package
Output
V
V
OUT
5
1
2.5
2.7
3.0
3.3
5.0
IN
GND
2
ERROR
SHDN
SOT-23A-5* – 40 C to +125 C
SOT-23A-5* – 40 C to +125 C
SOT-23A-5* – 40 C to +125 C
SOT-23A-5* – 40 C to +125 C
SOT-23A-5* – 40 C to +125 C
3
4
(SOT-23A-5*)
TOP VIEW
TC1055
Temp. Range
Junction
1
GENERAL DESCRIPTION
upgrade for older (bipolar) low dropout regulators. De-
signed specifically for battery-operated systems, the
TC1055’s CMOS construction eliminates wasted ground
current, significantly extending battery life. Total supply
current is typically 50 A at full load ( 20 to 60 times lower
than in bipolar regulators !).
very low dropout voltage (typically 200mV at full load) and
internal feed-forward compensation for fast response to
step changes in load. An error output (ERROR) is asserted
when the TC1055 is out-of-regulation (due to a low input
voltage or excessive output current). ERROR can be used
as a low battery warning or as a processor RESET signal
(with the addition of an external RC network). Supply current
is reduced to less than 1 A, and both V
are disabled when the shutdown input is low. The TC1055
incorporates both over-temperature and over-current pro-
tection.
1 F and has a maximum output current of 100mA. For
higher output current regulators, please see the TC1107,
TC1108 (I
TYPICAL APPLICATION
(from Power Control Logic)
The TC1055 is a high accuracy (typically 0.5%) CMOS
TC1055 key features include ultra low noise operation,
The TC1055 is stable with an output capacitor of only
Shutdown Control
V
IN
OUT
= 300mA) data sheets.
2
1
3
SHDN
GND
V
PRELIMINARY INFORMATION
IN
TC1055
ERROR
V
OUT
5
4
OUT
1M
and ERROR
TC1055
TC1055
1 F
V
ERROR
OUT