The TK1181x series devices generate DC output voltages
ranging from 7.2 to 32 V. Each device provides two
regulated output voltages selectable by a single jumper.
Designed for step-up operation, these devices will operate
with an input voltage as low as 1.1 V, thus allowing single
battery cell operation.
These converters have a built-in relaxation oscillator. The
frequency of operation is determined by external component
values. The built-in rectifier combined with an internal
temperature compensated reference allows stable output
voltages with minimal external components.
APPLICATIONS
■ Variable Capacitance and PIN Diode Bias
■ Portable Instrumentation
■ Radio Control Systems
■ Mobile Radios
■ Cellular Telephones
■ Cordless Telephones
■ Fiber-Optic Receivers
■ Local Area Network (LAN) Receivers
■ Battery Operated Equipment
TK11816 TK11817
TK11818 TK11819
V
IN
OSC
DK
T
1
GND
V
OUT
These devices are available in a miniature SOT-23L-6
surface mount package. An optimized surface mount
inductor is available from TOKO (P/N: 395GN-0091IB).
BLOCK DIAGRAM
OSCV
DK
ORDERING INFORMATION
TK11816M
IN
STARTUP
CIRCUIT
TK11817M
TK11818M
TK11819M
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
January 1999 TOKO, Inc.Page 1
GND
OSCILLATOR
FEEDBACK
CONTROL
REFERENCE
VOLTAGE
V
OUT
T
1
Page 2
TK11816, TK11817,
TK11818, TK11819
ABSOLUTE MAXIMUM RATINGS
Input Voltage ............................................................20 V
Power Dissipation (Note 1) ................................200 mW
Junction Temperature .......................................... 150 °C
Operating Voltage Range (TK11816).............1.1 to 13 V
Operating Voltage Range (TK11817).............1.1 to 15 V
Operating Voltage Range (TK11818).............1.1 to 18 V
Operating Voltage Range (TK11819).............1.1 to 18 V
Storage Temperature Range ...................-55 to +150 °C
Operating Temperature Range ..................-20 to +70 °C
Lead Soldering Temperature (10 s) .................... 235 °C
TK11816 ELECTRICAL CHARACTERISTICS
Test Conditions: VIN = 5 V, TA = 25 °C (Notes 3 & 5), unless otherwise specified.
LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU
I
V
I
∆V
V
NI
tnerruCylppuS
TUO
V
TUO
V1.1≤ VNI≤V011.218.215.31V
TUO
TUO
egatloVtuptuO
V1.1≤ VNI≤V658.602.705.7V
V
tnerruCtuptuO
TUO
V
TUO
geRdaoLnoitalugeRdaoL)4etoN(60.03.0%
V
TUO
/∆T
tneiciffeoCerutarepmeT
TUO
V
TUO
,V8.21=I
TUO
,V2.7=I
TUO
Am1.0=7.40.9Am
Am0.1=1.210.91Am
V8.21=5.35.4Am
V2.7=0.40.6Am
,V8.21=I
TUO
,V2.7=I
TUO
Am1.0=10.1C°/Vm
Am1.0=20.2C°/Vm
TK11817 ELECTRICAL CHARACTERISTICS
Test Conditions: VIN = 5 V, TA = 25 °C (Notes 3 & 5), unless otherwise specified.
LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU
V
I
NI
tnerruCylppuS
TUO
V
TUO
V1.1≤ VNI≤V510.618.616.71V
V
TUO
I
TUO
egatloVtuptuO
V1.1≤ VNI≤V858.803.908.9V
V
tnerruCtuptuO
TUO
V
TUO
geRdaoLnoitalugeRdaoL)4etoN(60.03.0%
V
∆V
TUO
/∆T
tneiciffeoCerutarepmeT
TUO
V
TUO
Page 2January 1999 TOKO, Inc.
,V8.61=I
TUO
,V3.9=I
TUO
Am1.0=7.40.9Am
Am0.1=1.210.91Am
V8.61=5.35.4Am
V3.9=0.40.6Am
,V8.61=I
TUO
,V3.9=I
TUO
Am1.0=18.1C°/Vm
Am1.0=13.2C°/Vm
Page 3
TK11818 ELECTRICAL CHARACTERISTICS
Test Conditions: VIN = 5 V, TA = 25 °C (Notes 3 & 5), unless otherwise specified.
LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU
TK11816, TK11817,
TK11818, TK11819
V
I
NI
tnerruCylppuS
TUO
V
TUO
,V82=I
TUO
,V4.02=I
TUO
Am1.0=7.40.9Am
Am0.1=1.210.91Am
V1.1≤ VNI≤V814.620.826.92V
V
TUO
I
TUO
egatloVtuptuO
V1.1≤ VNI≤V813.914.025.12V
tnerruCtuptuO
V
V
V82=8.10.3Am
TUO
TUO
V4.02=5.20.4Am
geRdaoLnoitalugeRdaoL)4etoN(60.03.0%
∆V
TUO
/∆T
V
tneiciffeoCerutarepmeT
TUO
V
TUO
,V82=I
TUO
,V4.02=I
TUO
Am1.0=2.0C°/Vm
Am1.0=6.0C°/Vm
TK11819 ELECTRICAL CHARACTERISTICS
Test Conditions: VIN = 5 V, TA = 25 °C (Notes 3 & 5), unless otherwise specified.
LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU
V
I
NI
tnerruCylppuS
TUO
V
TUO
V1.1≤ VNI≤V810.030.230.43V
V
TUO
egatloVtuptuO
V1.1≤ VNI≤V815.220.425.52V
,V23=I
TUO
,V42=I
TUO
Am1.0=7.40.9Am
Am0.1=1.210.91Am
I
TUO
tnerruCtuptuO
V
V
V23=8.10.3Am
TUO
V42=5.20.4Am
TUO
geRdaoLnoitalugeRdaoL)4etoN(60.03.0%
V
∆V
/∆T
TUO
Note 1: Power dissipation is 400 mW when mounted. Derate at 3.2 mW/°C for operation above 25 °C. Power dissipation is 200 mW in free air. Derate
Note 2: When operating below 25 °C, the output capacitor degradation may increase output ripple noise.
Note 3: VIN = 5.0 V, No load.
Note 4: Load Regulation = (∆V
Note 5: Specifications are based upon a Toko 395GN-0091IB inductor. The use of other inductors may degrade performance.
Note 6: See Output Voltage Selection Table for connections to obtain desired output voltage.
at 1.6 mW/°C for operation above 25 °C.
/ V
OUT
tneiciffeoCerutarepmeT
) x 100 %, where ∆V
OUT
TUO
V
TUO
= V
OUT
,V23=I
,V42=I
(no load) - V
OUT
TUO
TUO
Am1.0=19.0C°/Vm
Am1.0=73.1C°/Vm
OUT (IOUT
= 1.0 mA)
January 1999 TOKO, Inc.Page 3
Page 4
TK11816, TK11817,
TK11818, TK11819
V
IN
+
V
IN
OSC
L
1
1.2 mH
DKV
TEST CIRCUIT
T
1
OUT
V
OUT
NOISE FILTER
R
0.022 µF
Note:
L1 = 1.2 mH
Toko Part Number: 395GN-0091IB
OUTPUT VOLTAGE SELECTION
REBMUNTRAPGNIKRAM
61811KT6DV8.21V2.7
71811KT7DV8.61V3.9
1 kΩ
+
4.7 µF
+
.47 to
4.7 µF
The noise filter is not built in.
Please use an external circuit if desired.
I
= I
LOAD
OUT
Design within R x I
= 50 to 150 mV
OUT
EGATLOVTUPTUO
T-
V
TUO
1
)NEPO(V
T-
TUO
1
)DEREPMUJ(
81811KT8DV0.82V4.02
91811KT9DV0.23V0.42
Page 4January 1999 TOKO, Inc.
Page 5
TK11816, TK11817,
V
(V)
V
(V)
V
(V)
TK11818, TK11819
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25 °C, unless otherwise specified.
TK11816 (V
10
V
IN
5
OUT
0
0 5 10
TK11816 (V
15
V
= 2 V
IN
10
OUT
- T1 JUMPERED)
OUT
OUTPUT VOLTAGE
OUTPUT CURRENT
= 2 V
4 V
I
(mA)
OUT
- T1 OPEN)
OUT
OUTPUT VOLTAGE
OUTPUT CURRENT
4 V
8 V
6 V
10 V
VS.
8 V
VS.
6 V
10 V
OUTPUT VOLTAGE CHANGE
500
(mV)
0
OUT
∆V
-500
-50 0 50 100
OUTPUT VOLTAGE CHANGE VS.
500
(mV)
0
OUT
∆V
TEMPERATURE
TA (°C)
TEMPERATURE
VS.
OUTPUT VOLTAGE AND SUPPLY
CURRENT
10
(V)
5
OUT
V
0
0 1 2 3 4 5
OUTPUT VOLTAGE AND SUPPLY
CURRENT
15
(V)
10
OUT
V
200 µA
I
OUT
400 µA
200 µA
VS.
= 0
VIN (V)
VS.
INPUT VOLTAGE
400 µA
INPUT VOLTAGE
V
V
OUT
I
IN
OUT
10
5
0
20
10
(mA)
IN
I
(mA)
IN
I
5
0 10 20
I
(mA)
OUT
TK11817 (V
10
V
= 2 V
IN
5
OUT
0
0 10 20
- T1 JUMPERED)
OUT
OUTPUT VOLTAGE
OUTPUT CURRENT
6 V
4 V
8 V
I
(mA)
OUT
VS.
-500
-50 0 50 100
TA (°C)
OUTPUT VOLTAGE CHANGE
500
(mV)
0
OUT
∆V
-500
-50 0 50 100
TEMPERATURE
TA (°C)
VS.
= 0
5
0 1 2 3 4 5
OUTPUT VOLTAGE AND SUPPLY
10
(V)
5
OUT
V
0
0 1 2 3 4 5
OUT
CURRENT
I
OUT
VIN (V)
VS.
INPUT VOLTAGE
200 µA
= 0I
VIN (V)
400 µA
V
I
IN
OUT
IN
I
January 1999 TOKO, Inc.Page 5
0
20
10
0
(mA)
IN
I
Page 6
TK11816, TK11817,
V
(V)
V
(V)
V
(V)
TK11818, TK11819
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C, unless otherwise specified.
TK11817 (V
20
V
= 2 V
IN
15
OUT
10
0 5 10
TK11818 (V
30
V
OUT
20
IN
= 2 V
- T1 OPEN)
OUT
OUTPUT VOLTAGE
OUTPUT CURRENT
4 V
6 V
I
(mA)
OUT
- T1 JUMPERED)
OUT
OUTPUT VOLTAGE
OUTPUT CURRENT
4 V
6 V
8 V
8 V
VS.
VS.
10 V
10 V
OUTPUT VOLTAGE CHANGE
500
(mV)
0
OUT
∆V
-500
-50 0 50 100
OUTPUT VOLTAGE CHANGE VS.
500
(mV)
0
OUT
∆V
TEMPERATURE
TA (°C)
TEMPERATURE
VS.
OUTPUT VOLTAGE AND SUPPLY
CURRENT
20
(V)
10
OUT
V
0
0 1 2 3 4 5
OUTPUT VOLTAGE AND SUPPLY
CURRENT
30
(V)
20
OUT
V
VS.
INPUT VOLTAGE
200 µA
I
= 0
OUT
VIN (V)
VS.
INPUT VOLTAGE
200 µA
400 µA
400 µA
V
V
OUT
I
IN
OUT
20
10
0
20
10
(mA)
IN
I
(mA)
IN
I
I
= 0
10
0 5 10
I
(mA)
OUT
TK11818 (V
30
V
= 2 V
IN
20
OUT
10
0 5 10
- T1 OPEN)
OUT
OUTPUT VOLTAGE
OUTPUT CURRENT
6 V
4 V
I
(mA)
OUT
10 V
8 V
VS.
-500
-50 0 50 100
TA (°C)
OUTPUT VOLTAGE CHANGE
500
(mV)
0
OUT
∆V
-500
-50 0 50 100
TEMPERATURE
TA (°C)
VS.
10
0 1 2 3 4 5
OUTPUT VOLTAGE AND SUPPLY
CURRENT
30
(V)
20
OUT
V
10
0 1 2 3 4 5
OUT
VIN (V)
VS.
INPUT VOLTAGE
200 µA
I
= 0
OUT
VIN (V)
I
IN
V
OUT
400 µA
I
IN
Page 6January 1999 TOKO, Inc.
0
20
10
0
(mA)
IN
I
Page 7
TK11816, TK11817,
V
(V)
V
(V)
TK11818, TK11819
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C, unless otherwise specified.
TK11819 (V
30
V
= 2 V
IN
20
OUT
10
0 5 10
TK11819 (V
40
V
= 2 V
IN
30
OUT
- T1 JUMPERED)
OUT
OUTPUT VOLTAGE
OUTPUT CURRENT
4 V
- T1 OPEN)
OUT
OUTPUT VOLTAGE
OUTPUT CURRENT
I
OUT
4 V
8 V
6 V
(mA)
VS.
VS.
6 V
10 V
8 V
OUTPUT VOLTAGE CHANGE
500
(mV)
0
OUT
∆V
-500
-50 0 50 100
OUTPUT VOLTAGE CHANGE VS.
500
(mV)
0
OUT
∆V
TEMPERATURE
TA (°C)
TEMPERATURE
VS.
OUTPUT VOLTAGE AND SUPPLY
CURRENT
30
(V)
20
OUT
V
10
0 1 2 3 4 5
OUTPUT VOLTAGE AND SUPPLY
CURRENT VS. INPUT VOLTAGE
40
(V)
30
OUT
V
VS.
INPUT VOLTAGE
200 µA
I
= 0
OUT
VIN (V)
200 µA
400 µA
V
OUT
I
IN
V
OUT
400 µA
20
10
0
20
10
(mA)
IN
I
(mA)
IN
I
I
= 0
20
0 1 2 3 4 5
I
(mA)
OUT
-500
-50 0 50 100
TA (°C)
20
0 1 2 3 4 5
OUT
VIN (V)
I
IN
APPLICATION INFORMATION
HANDLING MOLDED RESIN PACKAGES
All plastic molded packages absorb some moisture from the air. If moisture absorption occurs prior to soldering the device
onto the printed circuit board, increased separation of the lead from the plastic molding may occur, degrading the moisture
barrier characteristics of the device. This property of plastic molding compounds should not be overlooked, particularly
in the case of very small packages, where the plastic is very thin. In order to preserve the original moisture barrier
properties of the package, devices are stored and shipped in moisture proof bags, filled with dry air. The bags should not
be opened or damaged prior to the actual use of the devices. If this is unavoidable, the devices should be stored in a low
relative humidity environment (40 to 65%) or in an enclosed environment with desiccant.
January 1999 TOKO, Inc.Page 7
0
Page 8
TK11816, TK11817,
TK11818, TK11819
PACKAGE OUTLINE
SOT-23L (SOT-23L-6)
456
123
ee
0.950.95
+0.3
- 0.1
3.5
(3.4)
0.1
Dimensions are shown in millimeters
Tolerance: x.x = ± 0.2 mm (unless otherwise specified)
0.32
+0.15
- 0.05
Marking
Marking Information
Marking
TK11816D6
TK11817D7
0.6
1.0
3.0
e1
0.1
M
Recommended Mount Pad
0.3
1.2
1.4 max
+0.15
- 0.05
0 - 0.1
0.15
ee
0.95 0.95
2.2
+ 0.3
3.3
15 max
0.4
TK11818D8
TK11819D9
Toko America, Inc. Headquarters
1250 Feehanville Drive, Mount Prospect, Illinois 60056
Tel: (847) 297-0070 Fax: (847) 699-7864
TOKO AMERICA REGIONAL OFFICES
Midwest Regional Office
Toko America, Inc.
1250 Feehanville Drive
Mount Prospect, IL 60056
Tel: (847) 297-0070
Fax: (847) 699-7864
Western Regional Office
Toko America, Inc.
2480 North First Street , Suite 260
San Jose, CA 95131
Tel: (408) 432-8281
Fax: (408) 943-9790
Semiconductor Technical Support
Toko Design Center
4755 Forge Road
Colorado Springs, CO 80907
Tel: (719) 528-2200
Fax: (719) 528-2375
Visit our Internet site at http://www.tokoam.com
The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its
products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of
third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.