EVALUATION
KIT
AVAILABLE
TC1107
300mA CMOS LDO WITH SHUTDOWN AND VREF BYPASS
FEATURES
GENERAL DESCRIPTION
■ Zero Ground Current for Longer Battery Life!
■ Very Low Dropout Voltage
■ Guaranteed 300mA Output
■ High Output Voltage Accuracy
■ Standard or Custom Output Voltages
■ Power-Saving Shutdown Mode
■ Bypass Input for Ultra-Quiet Operation
■ Over-Current and Over-Temperature Protection
■ Space-Saving MSOP Package Option
The TC1107 is a fixed output, high accuracy (typically
±0.5%) CMOS upgrade for older (bipolar) low dropout
regulators. Total supply current is typically 50µA at full load
(20 to 60 times lower than in bipolar regulators!).
TC1107 key features include ultra low noise operation
(plus optional Bypass input); very low dropout voltage
(typically 240mV at full load), and fast response to step
changes in load. Supply current is reduced to 0.05µA
(typical) and VOUT falls to zero when the shutdown input is
low.
The TC1107 incorporates both over-temperature and
over-currentprotection. TheTC1107isstablewithanoutput
capacitor of only 1µF and has a maximum output current of
300mA.
APPLICATIONS
■ Battery-Operated Systems
■ Portable Computers
■ Medical Instruments
■ Instrumentation
ORDERING INFORMATION
■ Cellular / GSM / PHS Phones
■ Linear Post-Regulator for SMPS
■ Pagers
Part
Number
Junction
Temp. Range
Package
TC1107-xxVOA
TC1107-xxVUA
8-Pin SOIC
8-Pin MSOP
– 40°C to +125°C
– 40°C to +125°C
TYPICAL APPLICATION
TC1015EV
Evaluation Kit for CMOS LDO Family
Available Output Voltages:
2.5, 2.8, 3.0, 3.3, 5.0
1
2
xx indicates output voltages
8
7
VOUT
VOUT
GND
VIN
NC
VIN
C1
1µF
Other output voltages are available. Please contact TelCom
Semiconductor for details.
PIN CONFIGURATIONS
TC1107
6
5
8-Pin MSOP
3
4
8-Pin SOIC
NC
NC
1
2
3
4
8
7
6
5
VOUT
GND
VIN
1
2
3
4
8
7
6
5
VOUT
GND
VIN
NC
NC
NC
NC
TC1107-
VUA
Bypass SHDN
NC
NC
Bypass
SHDN
TC1107-
VOA
Bypass
SHDN
CBYPASS
470pF
(Optional)
Shutdown Control
(from Power Control Logic)
TC1107-1 9/14/99 TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices.