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TC55 Series
TC55-24 02/01/01
2001 Microchip Technology Inc. DS21435A
FEATURES
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Very Low Dropout Voltage.... 120mV typ at 100mA
380mV typ at 200mA
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High Output Current.............. 250mA (V
OUT
= 5.0V)
High Accuracy Output Voltage........................
±
2%
(
±
1% Semicustom Version)
Wide Output Voltage Range .................... 1.1V-6.0V
Low Power Consumption ................... 1.1
μ
A (Typ.)
Low Temperature Drift ................
±
100ppm/
°
C (Typ.)
Excellent Line Regulation ..................0.2%/V (Typ.)
Package Options ............................. 3-Pin SOT-23A
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3-Pin SOT-89
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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
APPLICATIONS
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Battery-Powered Devices
Cameras and Portable Video Equipment
Pagers and Cellular Phones
Solar-Powered Instruments
Consumer Products
GENERAL DESCRIPTION
The TC55 Series is a collection of CMOS low dropout
positive voltage regulators which can source up to 250mA of
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 1.1
μ
A 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
V
IN
– V
OUT
differentials.
The circuit also incorporates short-circuit protection to
ensure maximum reliability.
1
μ
A LOW DROPOUT POSITIVE VOLTAGE REGULATOR
Output Voltage:
Ex: 20 = 2.0V; 60 = 6.0V 1.0% Tol.
Ex: 11 = 1.1V; 60 = 6.0V 2.0% Tol.
Extra Feature Code:
Fixed: 0
Tolerance:
1 = 1.0% (Custom)
2 = 2.0% (Standard)
Temperature:
E: – 40
°
C to +85
°
C
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
PART CODE
TC55 RP XX X X X XX XXX
ORDERING INFORMATION
PIN CONFIGURATIONS
FUNCTIONAL BLOCK DIAGRAM
VIN
VOUT
GND
+
–
Short-circuit
Protection
Voltage
Reference
1
3
2
VIN
VOUT
GND
TC55
VIN
VOUT
GND
TC55
1
3
2
3-Pin SOT-23A
3-Pin SOT-89
*SOT-23A-3 is equivalent to EIAJ SC-59