TC55 Series
1µA LOW DROPOUT POSITIVE VOLTAGE REGULATOR
FEATURES
GENERAL DESCRIPTION
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Very Low Dropout Voltage.... 120mV typ at 100mA
The TC55 Series is a collection of CMOS low dropout
positivevoltageregulatorswhichcansourceupto250mAof
current with an extremely low input-output voltage differen-
tial of 380mV at 200mA.
The low dropout voltage combined with the low current
consumption of only 1.1µA makes this part ideal for battery
operation. The low voltage differential (dropout voltage)
extends battery operating lifetime. It also permits high
currents in small packages when operated with minimum
VIN – VOUT differentials.
380mV typ at 200mA
High Output Current .............. 250mA (VOUT = 5.0V)
High Accuracy Output Voltage........................ 2%
( 1% Semicustom Version)
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Wide Output Voltage Range .................... 1.1V-6.0V
Low Power Consumption ................... 1.1µA (Typ.)
Low Temperature Drift ................ 100ppm/ C (Typ.)
°
Excellent Line Regulation ..................0.2%/V (Typ.)
Package Options ............................. 3-Pin SOT-23A
3-Pin SOT-89
The circuit also incorporates short-circuit protection to
ensure maximum reliability.
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Short Circuit Protection
Custom Voltages Available from 1.1V to 6.0V in
0.1V Steps for a 2%, and 2.0V to 6.0V for a 1%
Tolerance
PIN CONFIGURATIONS
3-Pin SOT-23A
3-Pin SOT-89
V
IN
APPLICATIONS
2
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Battery-Powered Devices
Cameras and Portable Video Equipment
Pagers and Cellular Phones
Solar-Powered Instruments
Consumer Products
TC55
TC55
3
1
GND
1
2
3
V
V
OUT
V
GND
OUT
IN
*SOT-23A-3 is equivalent to EIAJ SC-59
FUNCTIONAL BLOCK DIAGRAM
ORDERING INFORMATION
PART CODE TC55 RP XX X X X XX XXX
Output Voltage:
V
V
IN
Ex: 20 = 2.0V; 60 = 6.0V 1.0% Tol.
Ex: 11 = 1.1V; 60 = 6.0V 2.0% Tol.
OUT
Extra Feature Code: Fixed: 0
Short-circuit
Protection
Tolerance:
1 = 1.0% (Custom)
2 = 2.0% (Standard)
+
–
Temperature: E: – 40°C to +85°C
Voltage
Reference
Package Type and Pin Count:
CB: 3-Pin SOT-23A (equivalent to EIAJ SC-59)
MB: 3-Pin SOT-89
Taping Direction:
TR or 713: Standard Taping
RT or 723: Reverse Taping
GND
TC55-24 02/01/01
© 2001 Microchip Technology Inc. DS21435A