TK11220AMBX データシートの表示（PDF） - Toko America Inc
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TK11220AMBX Datasheet PDF : 34 Pages
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TK112xxA
SOT-23L
V IN
S
CONTROL FUNCTION
SOT-89-5
V IN
6
5
4
SW
6
5
4
SW
R
1
2
3
CP
R
1
2
3
CP
If the control function is not used, connect the control terminal to a logic high level or VIN. This will allow the regulator
to be on. The regulator will be on when the control terminal voltage is greater than 1.8 V. The seris resistor, RS,
should be less than 300 kΩ. The control current will decrease as RS, increases. The control threshold voltage will
also change.
MICROPROCESSOR/LOGIC CONTROL
VIN
CMOS/TTL Logic
VO
112XXA
Cont
GND
+
CIN
+ COUT
The Input and Control current in the off mode are less than 200 pA.
PARALLEL CONNECTION FOR ON/OFF CONTROL
VIN
VO
VIN
11250A
5V
+
Cont
GND
VIN
VO
11230A
3V
+
0.1 µ F
R Cont
+
GND
VIN
VO
2V
11220A
0.1 µ F +
Cont
+
GND
On/Off
To reduce IC power dissipation, connect a resistor, RS, in series with VIN for the lower output voltage devices. This
will prevent thermal shutdown due to excessive power dissipation.
January, 1996 TOKO, Inc.
1-4-96
Page 33
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