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TC55 Series
LOW DROPOUT POSITIVE VOLTAGE REGULATOR
GENERAL DESCRIPTION
FEATURES
The TC55 Series is a collection of CMOS low dropout
positivevoltageregulatorswhichcansourceupto250mAof
current with an extremely low input-output voltage differen-
tial of 380mV.
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 cur-
rents in small packages when operated with minimum VIN –
VOUT differentials.
■ Very Low Dropout Voltage.... 120mV typ at 100mA
380mV typ at 200mA
■ High Output Current .............. 250mA (VOUT = 5.0V)
■ High Accuracy Output Voltage........................± 2%
(± 1% Semicustom Version)
■ Wide Output Voltage Range .................... 2.1V-6.0V
■ Low Power Consumption ................... 1.1µA (Typ.)
■
Low Temperature Drift ................... ± 100ppm/°C Typ
■ Excellent Line Regulation ..................... 0.2%/V Typ
■ Package Options ....................................SOT-23A-3
SOT-89-3
The circuit also incorporates short-circuit protection to
ensure maximum reliability.
TO-92
■ Short Circuit Protected
■ Standard 3.0V, 3.3V and 5.0V Output Voltages
■ Custom Voltages Available from 2.1V to 6.0V in
0.1V Steps.
PIN CONFIGURATIONS
*SOT-23A-3
SOT-89-3
TO-92
V
IN
1
2 3
2
APPLICATIONS
TC55
TC55
■ Battery-Powered Devices
■ Cameras and Portable Video Equipment
■ Pagers and Cellular Phones
■ Solar-Powered Instruments
■ Consumer Products
TC55
1
3
1
2
3
V
GND
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
OUT
Ex: 21= 2.1V; 60 = 6.0V
Extra Feature Code: Fixed: 0
Tolerance:
Short-circuit
Protection
1 = ±1.0% (Custom)
2 = ±2.0% (Standard)
+
–
Temperature: E: – 40°C to +85°C
Package Type and Pin Count:
CB: SOT-23A-3 (Equivalent to EIAJ (SC-59))
MB: SOT-89-3
Voltage
Reference
ZB: TO-92-3
Taping Direction:
Standard Taping
Reverse Taping
GND
No suffix: TO-92 Bulk
TC55-20 11/8/96
TELCOM SEMICONDUCTOR, INC.
4-127