TK111xxS
VOLTAGE REGULATOR WITH ON/OFF SWITCH
FEATURES |
APPLICATIONS |
■ High Voltage Precision at ± 2.0% or ± 60 mV |
■ Battery Powered Systems |
■ Active High On/Off Control |
■ Cellular Telephones |
■ Very Low Dropout Voltage (85 mV at 30 mA) |
■ Pagers |
■ Very Low Noise |
■ Personal Communications Equipment |
■ Miniature Package (SOT-23-5) |
■ Portable Instrumentation |
■ Internal Thermal Shutdown |
■ Portable Consumer Equipment |
■ Short Circuit Protection |
■ Radio Control Systems |
■ Excellent Ripple Rejection (70 dB @ 1 kHz) |
■ Toys |
■ Reverse Bias Protection |
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DESCRIPTION
The TK111xxS is a low dropout linear regulator with a builtin electronic switch. The internal switch can be controlled by TTL or CMOS logic levels. The device is in the “on” state when the control pin is pulled to a logic high level. An external capacitor can be connected to the noise bypass pin to lower the output noise level to 30 μVrms.
An internal PNP pass transistor is used to achieve a low dropout voltage of 85 mV (typ.) at 30 mA load current. The TK111xxS has a very low quiescent current of 140 μA (typ.) at no load . The standby current is 100 nA maximum. The internal thermal shut down circuitry limits the junction temperature to below 150 °C. The load current is internally monitored and the device will shut down in the presence of a short circuit or overcurrent condition at the output.
20P
TK111xxS
CONTROL |
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VIN |
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GND |
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NOISE BYPASS |
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VOUT |
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The TK111xxS is available in a miniature SOT-23-5 surface mount package.
ORDERING INFORMATION
TK111 S L
Tape/Reel Code
Voltage Code Temp. Code
Package Code
VOLTAGE CODE
20 = 2.0 V |
32 = 3.2 V |
43 = 4.3 V |
21 = 2.1 V |
33 = 3.3 V |
44 = 4.4 V |
22 = 2.2 V |
34 = 3.4 V |
45 = 4.5 V |
23 = 2.3 V |
35 = 3.5 V |
46 = 4.6 V |
24 = 2.4 V |
36 = 3.6 V |
47 = 4.7 V |
25 = 2.5 V |
37 = 3.7 V |
48 = 4.8 V |
27 = 2.7 V |
38 = 3.8 V |
49 = 4.9 V |
28 = 2.8 V |
39 = 3.9 V |
50 = 5.0 V |
29 = 2.9 V |
40 = 4.0 V |
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30 = 3.0 V |
41 = 4.1 V |
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31 = 3.1 V |
42 = 4.2 V |
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Note 1: 2.0 to 2.3 V
available in C temperature code (-30 to +80 °C) only
TAPE/REEL CODE
L: Tape Left
PACKAGE CODE
S: SOT-23-5
TEMP. CODE
C: -30 to +80 °C
I: -40 to +85 °C
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BLOCK DIAGRAM |
VIN |
5 |
VOUT |
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THERMAL |
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PROTECTION |
CONTROL |
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BANDGAP |
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REFERENCE |
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GND |
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NOISE |
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BYPASS |
March 1999 TOKO, Inc. |
Page 1 |
TK111xxS
ABSOLUTE MAXIMUM RATINGS TK111xxSCL
Supply Voltage ......................................................... |
16 |
V |
Control Terminal Voltage ......................................... |
12 |
V |
Noise Bypass Terminal Voltage ................................. |
5 |
V |
Power Dissipation (Note 1) ................................ |
500 mW |
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Reverse Bias ............................................................ |
10 |
V |
Storage Temperature Range ................... |
-55 to +150 |
°C |
Operating Temperature Range ................... |
-30 to +80 |
°C |
Operating Voltage Range............................... |
1.8 to 12 V |
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Junction Temperature ........................................... |
150 |
°C |
Lead Soldering Temperature (10 s) ...................... |
235 |
°C |
TK111xxSCL ELECTRICAL CHARACTERISTICS
Test conditions: VIN = VOUT(TYP) + 1 V, TA = 25 °C, unless otherwise specified.
SYMBOL |
PARAMETER |
TEST CONDITIONS |
MIN |
TYP |
MAX |
UNITS |
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IQ |
Quiescent Current |
IOUT = 0 mA, Excluding ICONT |
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140 |
200 |
µA |
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ISTBY |
Standby Current |
VIN = 6 V, Output OFF, VCONT ≤ 0.15 V |
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0.1 |
µA |
VOUT |
Output Voltage |
IOUT = 10 mA, VIN = VOUT(TYP) + 1 V |
See Table 1 |
V |
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Line Reg |
Line Regulation |
VIN = VOUT(TYP) + 1 V to |
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0.8 |
18 |
mV |
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VOUT(TYP) + 6 V, (Note 2) |
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Load Reg |
Load Regulation |
IOUT = 1 to 60 mA, (Note 2) |
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8 |
30 |
mV |
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IOUT = 1 to 100 mA, (Note 2) |
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14 |
55 |
mV |
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VDROP |
Dropout Voltage |
IOUT = 60 mA, (Note 2) |
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120 |
200 |
mV |
IOUT |
Continuous Output Current |
(Note 2) |
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100 |
mA |
IOUT(PULSE) |
Pulse Output Current |
5 ms pulse, 12.5 % duty cycle, (Note |
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130 |
mA |
2) |
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f = 1 kHz, CL = 4.7 µF, |
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RR |
Ripple Rejection |
CN = 0.1 µF, VIN = VOUT(TYP) + 2 V, VR = |
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70 |
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dB |
200 mVrms, IOUT = 10 mA, (Notes |
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3,4) |
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VNO |
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400 Hz ≤ f ≤ 80 kHz, CL = 4.7 µF, |
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Output Noise Voltage |
CN = 0.01 µF, VIN = VOUT(TYP) + 2 V, |
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30 |
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µVrms |
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IOUT = 10 mA, (Notes 3,4) |
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Vref |
Noise Bypass Terminal |
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1.25 |
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V |
Voltage |
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VOUT / T |
Temperature Coefficient |
IOUT = 10 mA |
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25 |
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ppm/° C |
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CONTROL TERMINAL SPECIFICATIONS |
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ICONT |
Control Current |
VCONT = 1.8 V, Output ON |
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1.2 |
4 |
µA |
VCONT(ON) |
Control Voltage ON |
Output ON |
1.5 |
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V |
VCONT(OFF) |
Control Voltage OFF |
Output OFF |
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0.35 |
V |
Note 1: Power dissipation is 500 mW when mounted as recommended. Derate at 4.0 mW/°C for operation above 25 °C. Note 2: Refer to “Definition of Terms.”
Note 3: Ripple rejection and noise voltage are affected by the value and characteristics of the capacitor used. Note 4: Output noise voltage can be reduced by connecting a capacitor to the noise bypass terminal.
Gen. Note: Parameters with min. or max. values are 100% tested at TA = 25 °C. Gen. Note: Exceeding the “Absolute Maximum Ratings” can damage the device.
Page 2 |
March 1999 TOKO, Inc. |
TK111xxS
ABSOLUTE MAXIMUM RATINGS TK111xxSIL (VOUT ³ 2.4 V)
Supply Voltage ......................................................... |
15 |
V |
Storage Temperature Range ................... |
-55 to +150 |
°C |
Control Terminal Voltage ......................................... |
12 |
V |
Operating Temperature Range ................... |
-40 to +85 |
°C |
Noise Bypass Terminal Voltage ................................. |
5 |
V |
Operating Voltage Range............................... |
2.0 to 12 V |
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Power Dissipation (Note 1) ................................ |
500 mW |
Junction Temperature ........................................... |
150 |
°C |
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Reverse Bias ............................................................ |
10 |
V |
Lead Soldering Temperature (10 s) ...................... |
235 |
°C |
TK111xxSIL ELECTRICAL CHARACTERISTICS (VOUT ³ 2.4 V)
Test conditions: VIN = VOUT(TYP) + 1 V, TA = -40 to +85 °C, unless otherwise specified.
SYMBOL |
PARAMETER |
TEST CONDITIONS |
MIN |
TYP |
MAX |
UNITS |
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IQ |
Quiescent Current |
IOUT = 0 mA, Excluding ICONT |
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140 |
200 |
µA |
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ISTBY |
Standby Current |
VIN = 6 V, Output OFF, VCONT ≤ 0.15 V |
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0.2 |
µA |
VOUT |
Output Voltage |
IOUT = 10 mA, VIN = VOUT(TYP) + 1 V |
See Table 2 |
V |
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Line Reg |
Line Regulation |
VIN = VOUT(TYP) + 1 V to |
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0.8 |
18 |
mV |
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VOUT(TYP) + 6 V, (Note 2) |
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Load Reg |
Load Regulation |
IOUT = 1 to 60 mA, (Note 2) |
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8 |
30 |
mV |
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IOUT = 1 to 100 mA, (Note 2) |
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14 |
55 |
mV |
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VDROP |
Dropout Voltage |
IOUT = 60 mA, (Note 2) |
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120 |
200 |
mV |
IOUT |
Continuous Output Current |
(Note 2) |
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100 |
mA |
IOUT(PULSE) |
Pulse Output Current |
5 ms pulse, 12.5 % duty cycle, (Note |
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130 |
mA |
2) |
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f = 1 kHz, CL = 4.7 µF, |
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RR |
Ripple Rejection |
CN = 0.1 µF, VIN = VOUT(TYP) + 2 V, VR = |
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70 |
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dB |
200 mVrms, IOUT = 10 mA, (Notes |
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3,4) |
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VNO |
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400 Hz ≤ f ≤ 80 kHz, CL = 4.7 µF, |
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Output Noise Voltage |
CN = 0.01 µF, VIN = VOUT(TYP) + 2 V, |
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30 |
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µVrms |
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IOUT = 10 mA, (Notes 3,4) |
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Vref |
Noise Bypass Terminal |
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1.25 |
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V |
Voltage |
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VOUT / T |
Temperature Coefficient |
IOUT = 10 mA |
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25 |
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ppm/° C |
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CONTROL TERMINAL SPECIFICATIONS |
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ICONT |
Control Current |
VCONT = 1.8 V, Output ON |
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1.2 |
6 |
µA |
VCONT(ON) |
Control Voltage ON |
Output ON |
1.5 |
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V |
VCONT(OFF) |
Control Voltage OFF |
Output OFF |
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0.35 |
V |
Note 1: Power dissipation is 500 mW when mounted as recommended. Derate at 4.0 mW/°C for operation above 25 °C. Note 2: Refer to “Definition of Terms.”
Note 3: Ripple rejection and noise voltage are affected by the value and characteristics of the capacitor used. Note 4: Output noise voltage can be reduced by connecting a capacitor to the noise bypass terminal.
Gen. Note: Parameters with min. or max. values are 100% tested at TA = 25 °C. Gen. Note: Exceeding the “Absolute Maximum Ratings” can damage the device.
March 1999 TOKO, Inc. |
Page 3 |
TK111xxS
TK111xxSCL ELECTRICAL CHARACTERISTICS TABLE 1
Output |
Voltage |
VOUT(MIN) |
VOUT(MAX) |
Test |
Voltage |
Code |
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Voltage |
2.0 V |
20 |
1.940 V |
2.060 V |
3.0 V |
2.1 V |
21 |
2.040 V |
2.160 V |
3.1 V |
2.2 V |
22 |
2.140 V |
2.260 V |
3.2 V |
2.3 V |
23 |
2.240 V |
2.360 V |
3.3 V |
2.4 V |
24 |
2.340 V |
2.460 V |
3.4 V |
2.5 V |
25 |
2.440 V |
2.560 V |
3.5 V |
2.7 V |
27 |
2.640 V |
2.760 V |
3.7 V |
2.8 V |
28 |
2.740 V |
2.860 V |
3.8 V |
2.9 V |
29 |
2.840 V |
2.960 V |
3.9 V |
3.0 V |
30 |
2.940 V |
3.060 V |
4.0 V |
3.1 V |
31 |
3.038 V |
3.162 V |
4.1 V |
3.2 V |
32 |
3.136 V |
3.264 V |
4.2 V |
3.3 V |
33 |
3.234 V |
3.366 V |
4.3 V |
3.4 V |
34 |
3.232 V |
3.468 V |
4.4 V |
3.5 V |
35 |
3.430 V |
3.570 V |
4.5 V |
Output |
Voltage |
VOUT(MIN) |
VOUT(MAX) |
Test |
Voltage |
Code |
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Voltage |
3.6 V |
36 |
3.528 V |
3.672 V |
4.6 V |
3.7 V |
37 |
3.626 V |
3.774 V |
4.7 V |
3.8 V |
38 |
3.724 V |
3.876 V |
4.8 V |
3.9 V |
39 |
3.822 V |
3.978 V |
4.9 V |
4.0 V |
40 |
3.920 V |
4.080 V |
5.0 V |
4.1 V |
41 |
4.018 V |
4.182 V |
5.1 V |
4.2 V |
42 |
4.116 V |
4.284 V |
5.2 V |
4.3 V |
43 |
4.214 V |
4.386 V |
5.3 V |
4.4 V |
44 |
4.312 V |
4.488 V |
5.4 V |
4.5 V |
45 |
4.410 V |
4.590 V |
5.5 V |
4.6 V |
46 |
4.508 V |
4.692 V |
5.6 V |
4.7 V |
47 |
4.606 V |
4.794 V |
5.7 V |
4.8 V |
48 |
4.704 V |
4.896 V |
5.8 V |
4.9 V |
49 |
4.802 V |
4.988 V |
5.9 V |
5.0 V |
50 |
4.900 V |
5.100 V |
6.0 V |
Page 4 |
March 1999 TOKO, Inc. |
TK111xxS
TK111xxSIL ELECTRICAL CHARACTERISTICS TABLE 2
Test Conditions: VIN = VOUT(TYP) + 1 V, IOUT = 30 mA, unless otherwise specified.
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Room Temp. Range (TA = 25 °C) |
Full Temp. Range (TA = -40 to +85 °C) |
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Output |
Voltage |
VOUT(MIN) |
VOUT(MAX) |
VOUT(MIN) |
VOUT(MAX) |
Voltage |
Code |
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2.4 V |
24 |
2.340 V |
2.460 V |
2.305 V |
2.495 V |
2.5 V |
25 |
2.440 V |
2.560 V |
2.405 V |
2.595 V |
2.7 V |
27 |
2.640 V |
2.760 V |
2.605 V |
2.795 V |
2.8 V |
28 |
2.740 V |
2.860 V |
2.705 V |
2.895 V |
2.9 V |
29 |
2.840 V |
2.960 V |
2.805 V |
2.995 V |
3.0 V |
30 |
2.940 V |
3.060 V |
2.905 V |
3.095 V |
3.1 V |
31 |
3.038 V |
3.162 V |
3.007 V |
3.193 V |
3.2 V |
32 |
3.136 V |
3.264 V |
3.104 V |
3.296 V |
3.3 V |
33 |
3.234 V |
3.366 V |
3.201 V |
3.400 V |
3.4 V |
34 |
3.332 V |
3.468 V |
3.298 V |
3.502 V |
3.5 V |
35 |
3.430 V |
3.570 V |
3.395 V |
3.605 V |
3.6 V |
36 |
3.528 V |
3.672 V |
3.492 V |
3.708 V |
3.7 V |
37 |
3.626 V |
3.774 V |
3.589 V |
3.811 V |
3.8 V |
38 |
3.724 V |
3.876 V |
3.686 V |
3.914 V |
3.9 V |
39 |
3.822 V |
3.988 V |
3.783 V |
4.017 V |
4.0 V |
40 |
3.920 V |
4.080 V |
3.880 V |
4.120 V |
4.1 V |
41 |
4.018 V |
4.182 V |
3.977 V |
4.223 V |
4.2 V |
42 |
4.116 V |
4.284 V |
4.074 V |
4.326 V |
4.3 V |
43 |
4.214 V |
4.366 V |
4.171 V |
4.429 V |
4.4 V |
44 |
4.312 V |
4.488 V |
4.268 V |
4.532 V |
4.5 V |
45 |
4.410 V |
4.590 V |
4.365 V |
4.635 V |
4.6 V |
46 |
4.598 V |
4.692 V |
4.462 V |
4.738 V |
4.7 V |
47 |
4.696 V |
4.794 V |
4.559 V |
4.841 V |
4.8 V |
48 |
4.794 V |
4.896 V |
4.656 V |
4.944 V |
4.9 V |
49 |
4.892 V |
4.998 V |
4.753 V |
5.047 V |
5.0 V |
50 |
4.900 V |
5.100 V |
4.850 V |
5.150 V |
March 1999 TOKO, Inc. |
Page 5 |