TC1189

Features:

• Input Voltage Range: 2.7 V to 6.0 V
• 120 mA Output Current
• Low Supply Current: 50 A, (typical)
• Low Dropout Voltage: 110 mV, (typical at 100 mA)
• Fast Turn-On from Shutdown: 140 sec (typical)
• Low Output Noise
• Over-Current and Over-Temperature Protection
• Low Power Shutdown Mode
• Auto Discharge of Output Capacitor (TC1189)

Application

• Battery Powered Systems
• Portable Computers
• Medical Instruments
• Cellular, Cordless Phones
• PDAs
• Pagers

Specifications

Parameter NameValueMax Input Voltage6Output Voltage (v)1.8, 2.8, 2.84, 3.15Typical Active Current (A)50Typical Dropout Voltage @ Max. lout (mV)130Typical Output Voltage Accuracy (%)0.5Output Capacitor TypeAluminum/Tantalum

Parameter Name	Value
Max Input Voltage	6
Output Voltage (v)	1.8, 2.8, 2.84, 3.15
Typical Active Current (A)	50
Typical Dropout Voltage @ Max. lout (mV)	130
Typical Output Voltage Accuracy (%)	0.5
Output Capacitor Type	Aluminum/Tantalum

Input Voltage .........................................................6.5V
Output Short-Circuit Duration .............................Infinite
Output Voltage .......................... (-0.3V) to (V_IN + 0.3V)
Maximum Voltage On Any Pin...... (-0.3V) to (V_IN +0.3V)
Continuous Power Dissipation (T_A = +70)
SOT-23-5 (derate 7.1 mW/ above +70).....571 mW
Operating Temperature Range............... -40 to 85
Storage Temperature .........................-65 to +160
Lead Temperature (Soldering, 10 Sec.) ........... +300

*Notice: *Stresses above 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 above those indicated in the operation sections of the specifications is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability.

Description

Delivering up to 120mA, the TC1188 and TC1189 are fixed output, low-dropout linear regulators that operate from a +2.5V to +6.0V input range. The 50A supply current remains independent of load, making these devices ideal for battery-operated portable equipment. The output of the TC1188/1189 is preset at 3.15V, 2.84V, 2.80V or 1.80V. (Other output voltage options are available. contact Microchip Technology for more information.) In addition to low-power shutdown, short-circuit protection, and thermal shutdown protection, the TC1189 includes an auto-discharge function that actively discharges the output voltage to ground when the device is in shutdown mode. Both devices are pin-compatible with the Maxim MAX8863/8864 LDOs and are available in SOT-23-5 pack-ages.