POWER&RF
Adjustable / fixed negative LDO regulator IC
可変/固定負出力½½和レギュレータIC
TK72100CS, TK721xxCS, TK722xxCS
DESCRIPTION
The TK72100CS, TK721xxCS and TK722xxCS are low
dropout linear regulator ICs with on/off control, which can
supply 150mA load current.
The output voltage of the TK72100CS, adjustable by external
resistors, is available from –3.0 to -17.5V. Trimmed with high
accuracy, The output voltage of the TK721xxCS is available
from -2.0 to -9.5V and that of the TK722xxCS is available
from -3.0 to -9.5V.
TK72100CS, TK721xxCS, TK722xxCSは、出力電流150mAを
安定に供給できるon/offコントロール付½½和レギュレータIC
です。TK721xxCSとTK722xxCSの出力電圧は内部固定で高
精度にトリミングされ、TK721xxCSは-2.0Vより-9.5V、
TK722xxCSは-3.0Vより-9.5Vの間で設定できます。また
TK72100CSの出力電圧は外部抵抗により-3.0Vより-17.0Vの
間で自由に設定できます。
FEATURES
Adjustable Negative Output Voltage(TK72100CS)
High Precision Output Voltage of
±2.0%
or
±60mV(TK721xxCS/TK722xxCS)
Active Low On/off Control
Active High On/off Control
Short Circuit Protection (Over Current Protection)
Thermal Shutdown (Over Heat Protection)
可変負出力電圧(TK72100CS)
高精度出力電圧:
±2.0%
or
±60mV(TK721xxCS/TK722xxCS)
出力on/offコントロール:
High-Off(TK72100CS/TK721xxCS)
出力on/offコントロール:
High-On(TK722xxCS)
短絡保護機½(過電流保護)
サーマルシャットダウン機½(過熱保護)
APPLICATIONS
Battery Powered Systems
DSC(Digital Still Camera)
CCD(Coupled Charge Device) Bias
GaAs Bias
バッテリー駆動機器
デジタルスチルカメラ
CCDバイアス
GaAsバイアス
PACKAGE OUTLINE
Part name
Package
SOT23-6
Marking Pin configuration
K00
See next
page
ORDERING INFORMATION
Ordering information
TK72100CS
TK721xxCS
TK722xxCS
T K 7 2
x x C S
L
Storage direction
L: Left type(SOT23-5)
B: Back type(SOT23-6)
Temperature range
C: T
A
=25°C, I: Full
SOT23-5
Kxx
SOT23-5
Txx
Number
1, 2
Voltage code
Ex.-10.3V: 03, -5.0V: 50,
adjustable: 00
Package code
S: SOT23-5, SOT23-6
* “xx” means voltage code. “xx”は電圧コードを示しています。
ABSOLUTE MAXIMUM RATINGS
Parameter
Operating Voltage Range
Operating Temperature Range
Power Dissipation
項目
Symbol
記号
V
OP
動½電圧範囲
T
OP
動½温度範囲
許容消費電力
P
D
Rating
定格
Unit
単½
Remarks
備考
-19
-40 to +85
500
V
°C
mW
3-28
2005 WINTER
POWER&RF
ELECTRICAL CHARCTERISTICS
TK72100CS: V
IN
=-9.5V, T
A
=25°C, TK721xxCs/TK722xxCS: V
IN
=V
OUT.TYP
-1.5V, T
A
=25°C
Parameter
Symbol
Value
Units
Conditions
項目
記号
単½
条件
MIN
TYP
MAX
290
500
TK72100CS
V
DROP
I
OUT
=50mA
mV
Dropout Voltage
入出力間電圧降下
100
TK721xxCs/TK722xxCS
Maximum Output Current
最大出力電流
I
OUT.MAX
200
300
mA
When V
OUT
down 10%
170
250
TK72100CS
Quiescent Current
電源電流
I
Q
I
OUT
=0mA
µA
155
250
TK721xxCs/TK722xxCS
30
60
TK72100CS
I
STB
V
OUT
off state
Standby Current
スタンバイ電流
µA
20
60
TK721xxCs/TK722xxCS
Control Current
コントロール電流
12
30
V
CONT
=+1.8V
I
CONT
µA
0.0
0.3
V
OUT
on state: TK72100CS, TK722xxCS
1.5
V
OUT
off state: TK72100CS, TK722xxCS
V
Control Voltage
コントロール電圧
V
CONT
1.2
V
OUT
on state: TK722xxCS
0.6
V
OUT
off state: TK722xxCS
BLOCK DIAGRAM
TK72100CS
1
C.C.
90kΩ
B.R.
O.H.P.
O.C.P.
6
TK72100CS
1
2
GND
FB
V
OUT
Noise 6
pass
5
V
EE
V
CONT
4
C
NP
V
IN
2
5
V
OUT
3
C
OUT
R
2
C
IN
off
on
3
4
R
1
TK721xxCS
1
90kΩ
V
OUT
=V
FB
×{(R
1
+R
2
}/R
1
}, V
FB.TYP
=-1.20V
TK721xxCS
5
off
on
V
IN
1
2
C
IN
C
NP
V
CONT
V
EE
V
OUT
5
C
OUT
4
V
OUT
2
C.C.
B.R.
O.H.P.
O.C.P.
3 Noise
pass
GND
3
4
TK722xxCS
1
90kΩ
5
off
V
IN
TK722xxCS
on
1
2
C
IN
C
NP
V
CONT
V
EE
GND
4
V
OUT
5
C
OUT
V
OUT
2
C.C.
B.R.
O.H.P.
O.C.P.
3 Noise
pass
3
4
* C.C….Control Circuit, O.H.P…Over Heat Protection, O.C.P…Over Current Protection, B.G….Band gap Reference
2005 WINTER
3-29
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