Document
TK715xx
LOW DROPOUT VOLTAGE REGULATOR FEATURES
s s s s s s s High Voltage Precision at ± 2.0% or ± 60 mV Very Low Quiescent Current Very Low Dropout Voltage Reverse Bias Protection Miniature Package (SOT-23-3) Short Circuit Protection High Ripple Rejection
APPLICATIONS
s s s s s s s s s Battery Powered Systems Cellular Telephones Pagers Personal Communications Equipment Portable Instrumentation Portable Consumer Equipment Radio Control Systems Toys Low Voltage Systems
DESCRIPTION
The TK715xx is a low dropout linear regulator housed in a small SOT-23-3 package, rated at 350 mW. An internal PNP transistor is used to achieve a low dropout voltage of 105 mV (typ.) at 50 mA load current. This device offers high precision output voltage of ± 2.0 % or ± 60 mV. The TK715xx has a very low quiescent current of 25 µA (typ.) at no load. The low quiescent current and dropout voltage make this part ideal for battery powered applications. The internal reverse bias protection eliminates the requirement for a reverse voltage protection diode, saving cost and board space. The high 64 dB ripple rejection and low noise provide enhanced performance for critical applications.
TK715xxS
VIN
20 P
GND
VOUT
ORDERING INFORMATION
TK715
Voltage Code
SCL
Tape/ Reel Code Temp. Code Package Code
VIN
BLOCK DIAGRAM
VOUT THERMAL PROTECTION
VOLTAGE CODE
19 = 1.9 V 20 = 2.0 V 21 = 2.1 V 22 = 2.2 V 23 = 2.3 V 24 = 2.4 V 25 = 2.5 V 26 = 2.6 V 27 = 2.7 V 28 = 2.8 V 29 = 2.9 V 30 = 3.0 V 31 = 3.1 V 32 = 3.2 V 33 = 3.3 V 34 = 3.4 V 35 = 3.5 V 36 = 3.6 V 37 = 3.7 V 38 = 3.8 V 39 = 3.9 V 40 = 4.0 V 41 = 4.1 V 42 = 4.2 V 43 = 4.3 V 44 = 4.4 V 45 = 4.5 V 46 = 4.6 V 47 = 4.7 V 48 = 4.8 V 49 = 4.9 V 50 = 5.0 V 60 = 6.0 V 70 = 7.0 V 80 = 8.0 V 90 = 9.0 V
TEMPERATURE CODE
C -30 to +80 C
TAPE/REEL CODE
L: Tape Left
PACKAGE CODE
S : SOT-23-3
+ +
BANDGAP REFERENCE
GND
January 1999 TOKO, Inc.
Page 1
TK715xx
ABSOLUTE MAXIMUM RATINGS (VOUT ≥ 5.0 V)
Supply Voltage .............................................. -0.4 to 16 V Power Dissipation (Note 1) ................................ 350 mW Reverse Bias .............................................................. 8 V Storage Temperature (Ambient) ............... -55 to +150 °C Operating Temperature (Ambient) .............. -30 to +80 °C Max. Operating Temperature (Junction) ............... 125 °C Operating Voltage Range ............................ 1.8 to 14.0 V Junction Temperature ........................................... 150 °C Lead Soldering Temperature (10 s) ...................... 235 °C
TK715xx ELECTRICAL CHARACTERISTICS (VOUT ≥ 5.0 V)
Test conditions: TA = 25 °C, unless otherwise specified.
SYMBOL IQ IGND VOUT Line Reg PARAMETER Quiescent Current Ground Current Output Voltage Line Regulation TEST CONDITIONS IOUT = 0 mA, VOUT ≤ 4.0 V IOUT = 0 mA, VOUT ≥ 4.1 V IOUT = 50 mA IOUT = 10 mA VIN = VOUT(TYP) + 1 V to VOUT(TYP) + 6 V IOUT = 5 to 50 mA, (Note 2) IOUT = 5 to 100 mA, (Note 2) IOUT = 50 mA VDROP Dropout Voltage IOUT = 1.