TC1014

Features:

· Zero Ground Current for Longer Battery Life!
· Very Low Dropout Voltage
· Guaranteed 50mA Output
· High Output Voltage Accuracy
· Standard or Custom Output Voltages
· Power-Saving Shutdown Mode
· Reference Bypass Input for Ultra Low-Noise
· Operation
· Over-Current and Over-Temperature Protection
· Space-Saving SOT-23A-5 Package
· Pin Compatible Upgrade for MIC5205 and
· NSC2980

Application

· Battery Operated Systems
· Portable Computers
· Medical Instruments
· Instrumentation
· Cellular / GSM / PHS Phones
· Linear Post-Regulator for SMPS
· Pagers

Specifications

Parameter NameValueMax Input Voltage6Output Voltage (v)1.8, 2.5, 2.6, 2.7, 2.8, 2.85, 3.0, 3.3, 3.6, 4.0, 5.0Typical Active Current (A)50Typical Dropout Voltage @ Max. lout (mV)85Typical Output Voltage Accuracy (%)0.5Output Capacitor TypeAluminum/Tantalum

Parameter Name	Value
Max Input Voltage	6
Output Voltage (v)	1.8, 2.5, 2.6, 2.7, 2.8, 2.85, 3.0, 3.3, 3.6, 4.0, 5.0
Typical Active Current (A)	50
Typical Dropout Voltage @ Max. lout (mV)	85
Typical Output Voltage Accuracy (%)	0.5
Output Capacitor Type	Aluminum/Tantalum

Input Voltage..............................................................7V
Output Voltage ..............................( 0.3) to (V_IN + 0.3)
Power Dissipation .................Internally Limited (Note 7)
Operating Temperature.................... 40 < T_J < 125
Storage Temperature............................ 65 to +150
Maximum Voltage On Any Pin ..........V_IN + 0.3V to 0.3V

*Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Description

The TC1014, TC1015, and TC1185 are high accuracy (typically ±0.5%) CMOS upgrades for older (bipolar) low dropout regulators such as the LP2980. Designed specifically for battery-operated systems, the devices' CMOS construction eliminates wasted ground current, significantly extending battery life. Total supply current is typically 50A at full load (20 to 60 times lower than in bipolar regulators!). Key features for the devices include ultra low-noise operation (plus optional Bypass input), fast response to step changes in load, and very low dropout voltage, typically 85mV (TC1014), 180mV (TC1015), and 270mV (TC1185) at full load. Supply current is reduced to 0.5A (max) and VOUT falls to zero when the shutdown input is low. The devices also incorporate both over-temperature and over-current protection. The TC1014, TC1015, and TC1185 are stable with an output capacitor of only 1F and have a maximum output current of 50mA, 100mA, and 150mA, respectively. For higher output versions, see the TC1107, TC1108, and TC1173 (IOUT = 300 mA) data sheets.