TC55 Datasheet, PDF (1/9 Pages) TelCom Semiconductor, Inc – LOW DROPOUT POSITIVE VOLTAGE REGULATOR

TC55 Series
1µA LOW DROPOUT POSITIVE VOLTAGE REGULATOR
FEATURES
I Very Low Dropout Voltage .... 120mV typ at 100mA
380mV typ at 200mA
I High Output Current .............. 250mA (V_OUT = 5.0V)
I High Accuracy Output Voltage ........................ ± 2%
(± 1% Semicustom Version)
I Wide Output Voltage Range .................... 1.1V-6.0V
I Low Power Consumption ................... 1.1µA (Typ.)
I Low Temperature Drift ................ ± 100ppm/°C (Typ.)
I Excellent Line Regulation ..................0.2%/V (Typ.)
I Package Options ............................. 3-Pin SOT-23A
3-Pin SOT-89
I Short Circuit Protection
I 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
I Battery-Powered Devices
I Cameras and Portable Video Equipment
I Pagers and Cellular Phones
I Solar-Powered Instruments
I Consumer Products
FUNCTIONAL BLOCK DIAGRAM
VIN
Short-circuit
Protection
VOUT
Voltage
Reference
GND
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 1.1µA 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
V_IN – V_OUT differentials.
The circuit also incorporates short-circuit protection to
ensure maximum reliability.
PIN CONFIGURATIONS
3-Pin SOT-23A
VIN
2
3-Pin SOT-89
TC55
TC55
1
3
1
GND
VOUT
GND
*SOT-23A-3 is equivalent to EIAJ SC-59
2
3
VIN VOUT
ORDERING INFORMATION
PART CODE TC55 RP XX X X X XX XXX
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
© 2001 Microchip Technology Inc. DS21435A
TC55-24 02/01/01