Page 1
TK11806
C
G
V
A
3
2
1
DC-DC CONVERTER
FEATURES
■ Very Small Size
■ Few External Components
■ Wide Input Supply Voltage Range (1.1 to 18 V)
■ Six Selectable Output Voltages up to 32 V
■ Single Battery Cell Operation
DESCRIPTION
The TK11806 is a low power, low input voltage DC-DC
converter.
The device has been optimized for variable capacitance
diode and PIN diode bias applications. It generates DC
output voltages ranging from 9.3 V to 32 V in six steps. The
desired output voltage may be selected by simple wire
connections between control pins. The input DC voltage
can be as low as 1.1 V or as high as 18 V.
The device has a built-in relaxation oscillator. The frequency of oscillation is determined by external component
values. The TK11806 has built-in voltage reference and an
array of temperature compensated zener diodes in order to
generate various output voltages with minimum external
part count.
APPLICATIONS
■ Variable Capacitance and PIN Diode Bias
■ Portable Instrumentation
■ Radio Control Systems
■ Mobile Radios
■ Cellular Telephones
■ Cordless Telephones
■ Fiberoptic Receivers
■ Local Area Network (LAN) Receivers
■ Battery Operated Equipment
TK11806M
V
1
806
A21
IN
2
ND DA
3
T1
T2
4
8
OS
7
V
6
O
5
T3
The device is available in an 8-lead plastic surface mount
package (MFP-8).
External inductive components are also available from
TOKO.
ORDERING INFORMATION
TK11806M
Tape/Reel Code
January, 1996 TOKO, Inc.
TAPE/REEL CODE
BX: Bulk/Bag
TL: Tape Left
MG: Magazine
1-16-96
S
1
IN
BLOCK DIAGRAM
L
EXT
STARTUP
CIRCUIT
OSCILLATOR
FEEDBACK
CONTROL
OSC.
8
S
S
REF.
VOLTAGE
2
GND
7
D
V
6
O
T
5
T
4
3
T
Page 1
Page 2
TK11806
V
V
TOKO P/N : 395AN-0091B
ABSOLUTE MAXIMUM RATINGS
Input Voltage ............................................................ 20 V
Output Voltage ......................................................... 35 V
Power Dissipation (Note 1) ................................ 350 mW
Junction Temperature ...........................................150 °C
ELECTRICAL CHARACTERISTICS
Test conditions: V
SYMBOL PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
= 5.0 V, V
IN
= 32.0 V, TA = 25 °C, IO = 0 µA, unless otherwise specified.
O
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range ...................-20 to +70 °C
Lead Soldering Temp. (10 sec.) M-Package.........260 °C
V
IN
I
IN
V
O1
V
O2
V
O3
V
O4
V
O5
V
O6
I
O
Supply Voltage Range 1.1 18 mA
Supply Current
IO = 0.1 mA 4.7 90 mA
IO = 0.1 mA
12.1 19 µA
Output Voltage 1.1 V≤VIN≤18.0 V, Note 2 30 32.0 34 V
Output Voltage 1.1 V≤VIN≤18.0 V, Note 2 26 28 30 V
Output Voltage 1.1 V≤VIN≤18.0 V, Note 2 22.0 24.0 26.0 V
Output Voltage 1.1 V≤VIN≤18.0 V, Note 2 15.5 16.8 18.0 V
Output Voltage 1.1 V≤VIN≤18.0 V, Note 2 11.0 12.8 14.5 V
Output Voltage 1.1 V≤VIN≤18.0 V, Note 2 8.0 9.3 10.5 V
Output Current Note 3 1.8 2.4 mA
Load Reg Load Regulation IO = 0.0 mA → 1.0 mA .24 0.5 %
∆VO/∆T
Output Voltage IO = 0.1 mA 0.25 mV/ °C
A
Temperature Dependency
V
OSC
Note 1: Power dissipation must be derated at the rate of 3 mW/°C for operation at TA = 25 °C and above.
Note 2: Connect T
Note 3: Use inductor as specified.
Oscillator Start-up Voltage IO = 0 mA 0.9 1.1 V
through T3 as specified.
1
TEST CIRCUIT
OUTPUT
1.2 mH
IN
Page 2
22
µF
S
+
1
S
2
T1
3
4
T2
8
7
6
TK11806M
5
T3
820 W
+
10 µF
S
0.2 µF
V = 32
O
KT11806• TC01
1-16-96
SS
VOLTAGE CONNECTION
(V)
32 T
28 T1-T
24 T1-T2-T
17 T1-T2 , T3-V
13 T1-V
9.3 T1-T2-V
1-T2
3
3
O
O
O
January, 1996 TOKO, Inc.
Page 3
TYPICAL PERFORMANCE CHARACTERISTICS
5
1
0
7
V
TK11806
OUTPUT VOLTAGE vs. INPUT VOLTAGE
VO = 9.3 V
20
400 µA
800 µA
IO = 0 µA
1200 µA
O
10
V (V)
0
0 0.5 1.0 1.5 2.0 2.
V (V)
IN
OUTPUT VOLTAGE vs. INPUT VOLTAGE
VO = 24 V
30
IO = 0 µA
200 µA
O
20
V (V)
400 µA
600 µA
TA = 25 °C
TK11806 • TPC0
TA = 25 °C
OUTPUT VOLTAGE vs. INPUT VOLTAGE
VO = 13 V
20
IO= 0 µA
O
400 µA
10
V (V)
800 µA
1200 µA
0
0 0.5 1.0 1.5 2.0 2.5
V (V)
IN
OUTPUT VOLTAGE vs. INPUT VOLTAGE
VO = 28 V
30
IO = 0 µA
100 µA
O
20
V (V)
200 µA
300 µA
TA = 25 °C
TK11806 • TPC02
TA = 25 °C
OUTPUT VOLTAGE vs. INPUT VOLTAGE
VO = 17 V
20
IO = 0 µA
200 µA
600 µA
O
10
V (V)
400 µA
0
0 0.5 1.0 1.5 2.0 2.5
V (V)
IN
OUTPUT VOLTAGE vs. INPUT VOLTAGE
VO = 32 V
35
IO = 0 µA
100 µA
O
25
V (V)
200 µA
300 µA
TA = 25 °C
TK11806 • TPC03
TA = 25 °C
10
0 0.5 1.0 1.5 2.0 2.5
V (V)
IN
OUTPUT VOLTAGE vs. OUTPUT CURRENT
VO = 32 V
40
4.5 V 5.5 V
O
V (V)
V = 3.5 V
IN
30
20
0 1.0 2.0 3.0 4.0 5.
I (mA)
O
January, 1996 TOKO, Inc.
TK11806 • TPC04
TA = 25 °C
6.5 V
TK11806 • TPC0
10
0 0.5 1.0 1.5 2.0 2.5
V (V)
IN
TK11806 • TPC05
OUTPUT VOLTAGE vs. INPUT VOLTAGE
50
32 V
O
V (V)
25
28 V
24 V
9.3 V
0
0246810
V (V)
IN
1-16-96
TA = 25 °C
17 V
13 V
TK11806 • TPC08
15
0 0.5 1.0 1.5 2.0 2.5
V (V)
IN
TK11806 • TPC06
OUTPUT VOLTAGE DRIFT vs.
TEMPERATURE
100
0
OUT
∆V (mV)
-100
-20 0 +20 +40 +60 +80
IO = 500 µA
TA (°C)
17 V
TK11806 • TPC09
Page 3
28 V
24 V
32 V
13 V
9.3
Page 4
TK11806
0
0
0
1
0
2
0
5
0
3
0
4
6
TYPICAL PERFORMANCE CHARACTERISTICS
INPUT CURRENT vs. INPUT VOLTAGE
VO = 9.3 V
30
I = 1.5 mA
O
I = 1 mA
O
IN
15
I (mA)
0
I = 0
O
I = .5 mA
O
024681
V (V)
IN
TA = 25 °C
TK11806 • TPC1
INPUT CURRENT vs. INPUT VOLTAGE
VO = 24 V
30
I = 1.5 mA
O
I = 1 mA
O
TA = 25 °C
INPUT CURRENT vs. INPUT VOLTAGE
VO = 13 V
30
I = 1.5 mA
O
I = 1 mA
O
IN
15
I (mA)
0
I = 0
O
I = .5 mA
O
024681
V (V)
IN
TA = 25 °C
TK11806 • TPC1
INPUT CURRENT vs. INPUT VOLTAGE
VO = 28 V
T = 25°C
30
I = 1.5 mA
O
I = 1 mA
O
A
INPUT CURRENT vs. INPUT VOLTAGE
VO = 17 V
30
I = 1.5 mA
O
I = 1 mA
O
IN
15
I (mA)
0
IO = 0
I = .5 mA
O
024681
V (V)
IN
TA = 25 °C
TK11806 • TPC1
INPUT CURRENT vs. INPUT VOLTAGE
VO = 28 V
T = 25°C
I = 1 mA
O
A
30
I = 1.5 mA
O
I = .5 mA
15
IN
I (mA)
0
I = 0
O
O
024681
V (V)
IN
TK11806 • TPC1
OSCILLATOR START-UP VOLTAGE
vs. TEMPERATURE
IO = 0
1.0
0.9
IN
V (V)
0.8
0.7
-20 0 +20 +40 +60 +80
TA (°C)
TK11806 • TPC1
IN
15
I (mA)
0
I = 0
O
I = .5 mA
O
024681
V (V)
IN
TK11806 • TPC1
IN
15
I (mA)
I = 0
O
I = .5 mA
0
01234567891
V (V)
IN
O
TK11806 • TPC1
Page 4
1-16-96
January, 1996 TOKO, Inc.
Page 5
TK11806
V
V
5
V
-V
V
V
V
V
V
V
V
-V
TYPICAL APPLICATIONS
VARIABLE CAPACITANCE DIODE BIAS CIRCUIT AVALANCHE PHOTODIODE BIAS WITH AGC
1.2 mH
IN
47
µF
S
+
S
S
OSC.
1
IN
GND
2
T1
3
4
T2
OUT
DA
8
820 W
+
S
0.22 µF
V = 24
SS
O
7
6
5
T3
IN
S
+
47
S
µF
10 µF
TK11806M
KT11806• TC02
1.2 mH
1
IN
GND
2
T1
3
4
T2
TK11806M
FEEDBACK
OSC.
OUT
AGC
8
+
820 W
S
0.22 µF
V = 32
SS
O
7
DA
6
5
T3
10 µF
KT11806• TC03
NEGATIVE OUTPUT POSITIVE AND NEGATIVE OUTPUTS
S
O
22 µF
+
IN
47
µF
S
+
S
OSC.
1
IN
GND
2
T1
3
4
T2
OUT
DA
8
7
6
5
T3
TK11806M
IN
47
µF
S
+
S
OSC.
1
IN
GND
2
T1
3
4
T2
OUT
DA
8
7
6
5
T3
TK11806M
820 W
+
+
10 µF
S
O
22 µF
S
0.22 µF
SS
+V
O
KT11806• TC04
KT11806• TC0
VOLTAGE BOOST CIRCUIT VARIABLE BIAS SOURCE
S
S
KT11806• TC06
V = 53
O
.47 µF
IN
S
S
+
47
S
µF
5 k
1.2 mH
8
7
6
5
S
S S
0.22
µF
.47 µF
IN
47
µF
S
+
1
S
2
3
4
IN
GND
T1
T2
OSC.
DA
OUT
T3
TK11806M
S
S
33 k
January, 1996 TOKO, Inc.
1-16-96
1.2 mH
1
IN
GND
2
T1
3
4
T2
TK11806M
OSC.
OUT
DA
T3
8
S S S
7
6
5
.2 µF
1 k 22 k
S
S
10 pF
33 k
SS S
S
240 k
S
51 k
KT11806• TC07
Page 5
V
~30
O
Page 6
TK11806
V
V
TOKO P/N : 395AN-0091B
V
V
TOKO P/N : 395AN-0091B
V
V
TOKO P/N : 395AN-0091B
METHODS FOR VARIABLE OUTPUT CONTROL
1.2 mH
IN
S
22
µF
+
S
1
2
T1
3
4
T2
8
7
6
TK11806M
5
T3
820 W
+
10 µF
Simple Potentiometer Adjustment
S
0.2 µF
SS
V = 0 to 30
O
25 k POT
TC-1
1.2 mH
Potentiometer Adjustment with Control Loop
IN
22
µF
S
+
S
1
2
T1
3
S
4
T2
8
7
6
TK11806M
5
T3
0.2 µF
S
820 W
V = 12 to 48
S
S
O
+
4.7 µF
50 k
TC-3
1.2 mH
DC Control Voltage Adjustment with Control Loop
IN
Page 6
22
µF
S
+
S
1
2
T1
3
S
4
T2
8
7
6
TK11806M
5
T3
0.2 µF
S
820 W
S S
+
100 k
S
4.7 µF
R
S
IN
= 14 to 30
V
O
Control
Voltage Input
S
1-16-96
10 k
TC-1A
January, 1996 TOKO, Inc.
Page 7
PACKAGE OUTLINES
MFP-8
TK11806
0.76
Marking
8
1 4
+0.1
-0.01
0.4
0.12
M
5.0
5
1.27
0.2
±
4.4
e
1.27
Recommended Mount Pad
±
0.2
0.2
±
1.4
0.1min
1.7max
6.0
±
e
1.27
0.1
5.5
1
e
±
0.2
0.5
0°~10°
-0.05
+0.1
0.15
0.3
Unit:mm
Marking Information
806
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.
TOKO America, Inc.
1250 Feehanville, Dr.
Mt. Prospect, IL 60056
Tel: 1(800) PIK-TOKO
Fax: 1(847) 699-1194
January, 1996 TOKO, Inc.
© 1993 Toko America, Inc.
All Rights Reserved
YOUR LOCAL REPRESENTATIVE IS:
1-16-96
Page 7
Printed in U.S.A.Order this literature by: IC-108-TK11806
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