Document
TC55 Series 1µA LOW DROPOUT POSITIVE VOLTAGE REGULATOR
FEATURES
s s s s s s s s s s s Extremely Low Power Consumption 1.1µA (Typ.) Very Low Dropout Voltage .... 120mV typ at 100mA 380mV typ at 200mA Wide Input Voltage Range ..................... 10V (max.) High Output Current .............. 250mA (VOUT = 5.0V) High Accuracy Output Voltage ........................ ± 2% (± 1% Semicustom Version) Wide Output Voltage Range .................... 1.1V-6.0V Low Power Consumption ................... 1.1µA (Typ.) Excellent Line Regulation ..................0.2%/V (Typ.) Package Options .. 3-Pin SOT-23A, SOT-89, TO-92 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
GENERAL DESCRIPTION
The TC55 Series is a family of CMOS low dropout positive voltage regulators which can source up to 250mA of current. The extremely low operating current (1.1µA typical) makes this part the ideal choice for battery operated applications and eliminates the need for an additional shutdown mode. The power consumption of the TC55 is 1000 times lower than in bipolar regulators, significantly extending battery life. The maximum input voltage of 10V combined with the wide output voltage range (1.1V to 6.0V, in 100mV increments) makes this device suitable for a large variety of applications. Other key features include low dropout voltage (380mV typical at 200mA) and excellent line regulation (0.2%/V). The low voltage differential (dropout voltage) also extends battery operating lifetime and permits high currents in small packages when operated with minimum VIN – VOUT differentials. The circuit also incorporates short-circuit protection to ensure maximum reliability. The TC55 is stable with an output capacitor (ceramic or tantalum) of only 1µF and is available in a tiny SOT-23A package for space critical applications, as well as in a 3-pin SOT-89 and a 3-pin TO92 package.
APPLICATIONS
s s s s s Battery-Powered Devices Cameras and Portable Video Equipment Pagers and Cellular Phones Solar-Powered Instruments Consumer Products
FUNCTIONAL BLOCK DIAGRAM
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
Short-circuit Protection + Voltage Reference GND
PIN CONFIGURATION
3-Pin SOT-23A
VIN 2 1 2 3
3-Pin SOT-89
TC55 1 GND 3 VOUT 1 GND 2 VIN
TC55
3 VOUT
GND VIN
*SOT-23A-3 is equivalent to EIAJ SC-59
TC55-24 9/30/99
TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices.
VOUT
–
3-Pin TO-92
Package Type and Pin Count: CB: 3-Pin SOT-23A (equivalent to EIAJ SC-59) MB: 3-Pin SOT-89 ZB: 3-Pin TO-92 Taping Direction: TR or 713: Standard Taping RT or 723: Reverse Taping No suffix: TO-92 Bulk
TC55
1µA LOW DROPOUT POSITIVE VOLTAGE REGULATOR
TC55 Serie.