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TC1188/TC1189
General Description
The TC1188 and TC1189 are fixed output, low dropout
linear regulators that operate from a 2.7V to 6.0V input
voltage source. The output is capable of delivering up
to 120 mA while consuming only 50 碌A(chǔ) of quiescent
current. The low dropout voltage, 120 mV, make the
TC1188 and TC1189 good choices for battery powered
applications. Integrated over-current and over-temper-
ature protection features provide for a fault tolerant
solution.
The TC1189 includes an output voltage auto discharge
feature. When shutdown, the TC1189 will automatically
discharge the output voltage using an internal N-Chan-
nel MOSFET switch.
Fixed output voltage options for the TC1188/TC1189
are: 1.80V, 2.80V, 2.84V and 3.15V. Both the TC1188
and TC1189 are available in SOT23-5 packages.
MAX8863/64 Pin Compatible, Low Dropout,
120 mA Linear Regulators
Input Voltage Range: 2.7 V to 6.0 V
120 mA Output Current
Low Supply Current: 50 碌A(chǔ), (typical)
Low Dropout Voltage: 110 mV, (typical at 100 mA)
Fast Turn-On from Shutdown: 140 碌sec (typical)
Low Output Noise
Over-Current and Over-Temperature Protection
Low Power Shutdown Mode
Auto Discharge of Output Capacitor (TC1189)
Applications
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Battery Powered Systems
Portable Computers
Medical Instruments
Cellular, Cordless Phones
PDAs
Pagers
Typical Application Circuit
V
IN
V
OUT
TC1188
TC1189
SHDN
Output
Voltage
C
OUT
1 碌F
Package Type
5-Pin SOT-23A
GND
5
V
OUT
4
TC1188
TC1189
1
2
3
+
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Battery
C
IN
1 碌F
GND
GND
SHDN GND V
IN
NOTE:
5-Pin SOT-23A is equivalent to the EIAJ (SC-74A)
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2002 Microchip Technology Inc.
DS21364B-page 1
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