APPLICATION MANUAL
Negative-input Negative-output Regulator IC
TK722xxCS
CONTENTS
1 . DESCRIPTION
2 . FEATURES
3 . APPLICATIONS
4 . PIN CONFIGURATION
5 . PACKAGE OUTLINE
6 . ORDERING INFORMATION
7 . BLOCK DIAGRAM
8 . ABSOLUTE MAXIMUM RATINGS
9 . ELECTRICAL CHARACTERISTICS
10 . TEST CIRCUIT
11 . TYPICAL CHARACTERISTICS
12 . PIN DESCRIPTION
13 . APPLICATIONS INFORMATION
14 . NOTES
15. OFFICES
2
2
2
2
2
3
4
4
5
6
7
20
21
26
26
GC3-K037E
Page 1
TK722xxCS
Negative-input Negative-output Regulator IC
TK722xxCS
1. DESCRIPTION
TK722xxCS series is a negative-input negative-output
regulator IC using silicon monolithic bipolar structure
which can supply 150mA output current.
The output voltage can be set from -1.3 to -9.5V, which is
trimmed in high accuracy.
TK721xxCS is supplied with ON/OFF terminal and noise
reduction terminal. The ON/OFF control can be
controlled directly with positive logic or CPU.
Moreover, TK722xxCS is provided with short-circuit
protection and thermal shutdown.
4. PIN CONFIGURATION
Top View
1
Cont
Vout
5
2
VEE
3
Np
GND
4
2. FEATURES
High Output Voltage Accuracy(±2.0% or
±60
mV)
ON/OFF control available (High ON)
Built-in
short-circuit protection and thermal shutdown.
Guarantee 150mA output current (
200mA peak)
Ceramic capacitor available for application
5. PACKAGE OUTLINE
SOT23-5
Mark
0.7
5
4
1.6
±0.2
Battery Powered Systems
DSC, CCD bias, GaAs bias.
1
0.95
0.95
3
0.4
-0.05
+0.10
0.95
0.95
Reference Mount Pad
0.1
M
2.9
±0.2
1.3max
1.1
±0.1
0.15
+0.10
-0.05
0 ~0.1
(0.3)
0.1
2.8
±0.2
GC3-K037E
2.4
3. APPLICATIONS
1.0
Page 2
TK722xxCS
6. ORDERING INFORMATION
T K 7 2 2
Voltage Code
(Refer to the following table)
Version
C
Package Code
S : SOT23-5
C S C L -
Environment Code
-G : Lead Free
-GH : Lead Free and Halogen Free
Tape / Reel Code
L : Left Type
Rank Code
C : C Rank
Package
Vout
-1.3
-1.5
-2.0
Part Number
TK72213CSC
TK72215CSC
TK72220CSC
Marking
T13
T15
T20
SOT23-5
-5.0
-7.0
-7.5
TK72250CSC
TK72270CSC
TK72275CSC
T50
T70
T75
For other voltages, please contact the
ASAHI KASEI TOKO POWER DEVICES
sales office.
GC3-K037E
Page 3
TK722xxCS
7. BLOCK DIAGRAM
Cont
90k
Vout
VEE
Bandgap
Reference
Over Heat &
Over Current
Protection
Np
GND
Control:High Level On
8. ABSOLUTE MAXIMUM RATINGS
Parameter
Absolute Maximum Ratings
Supply Voltage
Control pin Voltage
Reverse Bias Voltage
Power Dissipation
(SOT23-5 Simple substance)
Storage Temperature Range
Operating Condition
Operating Temperature Range
Operating Voltage Range
Short Circuit Current
Symbol
Vin
Vcont
Vrev
P
D
T
stg
T
OP
V
OP
Ishort
Rating
-20 ~ +0.4
-0.4 ~ +5
-20 ~ +0.3
500
-55 ~ +150
-40 ~ 85
-19
300
Units
V
V
V
mW
°
C
°
C
Conditions
|Vin|+|Vcont|£20V
|Vin|+|Vcont|£19V
Vin-Vout£0.3V
T
a
=25°C
P
D
must be decreased at the rate of
4.0mW/°C for operation above 25°C.
V
mA
|Vin|+|Vcont|£19V
Over Current Protection
Absolute maximum ratings are limits beyond which damage to the device may occur.
If the operation exceeds any of these standards, quality cannot be guaranteed.
GC3-K037E
Page 4
TK722xxCS
9. ELECTRICAL CHARACTERISTICS
Vin=Vout
TYP
-1.5V (*1), Ta=25
°
C
Parameter
Vout
Line Regulation
Load Regulation
Dropout Voltage (*2)
Supply Current
Standby Current
Peak Output Current
Control Current
Control Voltage
Symbol
Vout
LinReg
LoaReg
Vdrop
Icc
Istandby
Iout
PEAK
Icont
Vcont
Value
MIN
TYP
MAX
Refer to TABLE 1
1
5
Refer to TABLE 1
Refer to TABLE 1
Refer to TABLE 1
0.29
0.50
0.48
0.80
0.66
1.10
155
250
0.1
1.0
200
280
12
30
1.3
0
0.3
Unit
V
mV
mV
mV
mV
V
V
V
µA
µA
mA
mA
V
V
Condition
Iout=5mA
ΔVin=5V
Iout=5mA~50mA
Iout=5mA~100mA
Iout=5mA~150mA
Iout=50mA
Iout=100mA
Iout=150mA
Iout=0mA
Vout Off State
When Vout drops 10%
Vcont=+1.8V
Vout ON State
Vout OFF State
(*1) For Vout³-2.0V, Vin=-3.5V.
(*2) For Vout³-3.0V no regulations
TABLE 1
Part Number
TK72213CSC
TK72215CSC
TK72220CSC
TK72250CSC
TK72270CSC
TK72275CSC
MIN
-1.360
-1.560
-2.060
-5.100
-7.140
-7.650
Vout
TYP
-1.300
-1.500
-2.000
-5.000
-7.000
-7.500
MAX
-1.240
-1.440
-1.940
-4.900
-6.860
-7.350
Iout=50mA
TYP
MAX
4
15
4
15
9
24
15
38
21
53
23
56
LoaReg
Iout=100mA
TYP
MAX
8
20
8
20
15
39
25
65
35
91
38
98
Iout=150mA
TYP
MAX
22
50
22
50
24
60
40
100
56
140
60
150
GC3-K037E
Page 5
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