參數(shù)資料
型號(hào)： TK11240A
廠商： TOKO Inc.
英文描述： VOLTAGE REGULATOR WITH ON/OFF SWITCH
中文描述： 調(diào)壓器ON / OFF開關(guān)
文件頁數(shù)： 33/34頁
文件大小： 382K
代理商： TK11240A
Page 33
January, 1996 TOKO, Inc.
1-4-96
TK112xxA
CONTROL FUNCTION
11250A
V
IN
Cont
V
O
GND
11230A
V
IN
Cont
V
O
GND
11220A
V
IN
Cont
V
O
GND
+
+
+
5 V
3 V
2 V
+
+
R
On/Off
0.1 μF
0.1 μF
V
IN
To reduce IC power dissipation, connect a resistor, R
S
, in series with V
IN
for the lower output voltage devices. This
will prevent thermal shutdown due to excessive power dissipation.
1
4
5
6
2
3
S
CP
V
IN
SW
R
SOT-23L
If the control function is not used, connect the control terminal to a logic high level or V
IN.
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, R
S
,
should be less than 300 k
. The control current will decrease as R
S
, increases. The control threshold voltage will
also change.
1
4
5
6
2
3
S
CP
V
IN
SW
R
SOT-89-5
PARALLEL CONNECTION FOR ON/OFF CONTROL
The Input and Control current in the off mode are less than 200 pA.
112XXA
Cont
C
IN
+
V
O
GND
+
CMOS/TTL Logic
C
OUT
V
IN
MICROPROCESSOR/LOGIC CONTROL
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