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Электронный компонент: TK11457BX

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11-20-94
TK114xx
January, 1995 TOKO, Inc.
Page 1
FEATURES
s
Low Dropout Voltage
s
Electronic ON/OFF Switch
s
Very Low Standby Current (ON, No Load)
s
Internal Thermal Shutdown
s
Short Circuit Protection
s
Very Low (<100 nA) Current in OFF Mode
s
Customized Versions Are Available
DESCRIPTION
The TK114xx is a low power, linear regulator with a built-
in electronic switch. The internal electronic switch can be
controlled by an external pull-up resistor and an open drain
or open collector transistor. The device is in the OFF state
when the control pin is biased from V
IN
through the pull-up
resistor.
An internal PNP pass-transistor is used in order to achieve
low dropout voltage (typically 200 mV at 50 mA load
current). The device has very low quiescent current (500
A) in the ON mode with no load and 2 mA with 30 mA load.
The quiescent current is typically 4 mA at 60 mA load. An
internal thermal shutdown circuit limits the junction tem-
perature to below 150
C. The load current is internally
monitored and the device will shut down (no load current)
in the presence of a short circuit at the output. The device
is available in a small SOT-23L surface mount package.
VOLTAGE REGULATOR WITH ON/OFF SWITCH
APPLICATIONS
s
Battery Powered Systems
s
Cellular Telephones
s
Pagers
s
Personal Communications Equipment
s
Portable Instrumentation
s
Portable Consumer Equipment
s
Radio Control Systems
s
Toys
s
Low Voltage Systems
BLOCK DIAGRAM
1
3
CONTROL
GND
6
4
V
IN
V
O
KT114xxM.PO
2
5
TK114xxM
TK114
Voltage Code
Tape/Reel Code
TAPE/REEL CODE
BX : Bulk/Bag
TL : Tape Left
ORDERING INFORMATION
VOLTAGE CODE
30 = 3.0 V
32 = 3.25 V
35 = 3.5 V
37 = 3.75 V
40 = 4.0 V
45 = 4.5 V
47 = 4.75 V
50 = 5.0 V
55 = 5.5 V
57 = 5.75 V
60 = 6.0 V
80 = 8.0 V
S
S
S
S
S
S
S
S
S
S
V
O
V
IN
LOW
CONTROL
(LC)
GND
KT114xx BD
TK114xx
BANDGAP
REFERENCE
+
HIGH
CONTROL
(HC)
+
S
S
S
S
THERMAL
PROTECTION
S
S
2
1
3
6
8
R3
TK114xx
11-20-94
Page 2
January, 1995 TOKO, Inc.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ......................................................... 16 V
Load Current ....................................................... 180 mA
Power Dissipation (Note 1) ................................ 400 mW
Storage Temperature Range ................... -55 to +150
C
Operating Temperature Range .................. -30 to +80
C
Lead Soldering Temp. (10 sec.) ........................... 240
C
Junction Temperature .......................................... 150
C
TK11430 ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNITS
I
IN1
Supply Current 1
V
IN
= 4 V, I
O
= 0 mA
500
900
A
I
IN2
Supply Current 2
V
IN
= 2.5 V, I
O
= 0 mA
1
2.5
A
I
INS
Standby Current
V
IN
= 10 V, Output Off
0.1
A
V
O
Output Voltage Regulation
V
IN
= 4 V, I
O
= 30 mA
2.9
3.0
3.1
%
V
DROP
Dropout Voltage
I
O
= 30 mA
0.12
0.3
V
I
O
Output Current
70
110
mA
I
OR
Recommended Output
70
mA
Current
LinReg
Line Regulation
V
IN
= 4 V
9 V
5
30
mV
LoaReg
Load Regulation
I
O
= 0 mA to 30 mA
18
50
mV
I
O
= 0 mA to 60 mA
36
80
mV
RR
Ripple Rejection
100 mV(rms), f = 400 Hz
55
dB
V
IN
= 4.5 V, I
O
= 10 mA
V/
T
V
O
Temperature Coefficient
V
IN
= 4.5 V, I
O
= 10 mA
0.3
mV/
C
-20
C
T
A
75
C
V
N
Output Noise Voltage
V
IN
= 4.5 V, I
O
= 10 mA
180
V(rms)
Control Pin
I
CONT
Control Pin Current
On Mode
35
120
A
V
Coff
Control Pin Voltage
Off Mode
V
IN
-0.2
V
IN
V
V
Con
Control Pin Voltage
On Mode
0
0.6
V
Note 1: Power dissipation must be derated at the rate of 1.6 mW/
C for operation above T
A
= 25
C.
TEST CIRCUIT 1
KT114xx TC01A
1
4
5
6
2
3
S
V
IN
V
A
A
V
S
S
S
S
V
OUT
I
OUT
V
IN
V
OUT
1 F
m
10 F
m
150KW
I
CONT
CONT
CONT
GND
NOTE: CONNECT PINS 2 AND 5 TO
GND FOR MAXIMUM HEAT CONDUCTION.
+
+
+
_
+
_
11-20-94
TK114xx
January, 1995 TOKO, Inc.
Page 3
TK11432 ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNITS
I
IN1
Supply Current 1
V
IN
= 4.2 V, I
O
= 0 mA
500
900
A
I
IN2
Supply Current 2
V
IN
= 2.5 V, I
O
= 0 mA
1
2.5
A
I
INS
Standby Current
V
IN
= 10 V, Output Off
0.1
A
V
O
Output Voltage Regulation
V
IN
= 4.2 V, I
O
= 30 mA
3.13
3.25
3.37
%
V
DROP
Dropout Voltage
I
O
= 30 mA
0.12
0.3
V
I
O
Output Current
(Note 2)
70
110
mA
I
OR
Recommended Output
70
mA
Current
LinReg
Line Regulation
V
IN
= 4.2 V
9.2 V
6
30
mV
LoaReg
Load Regulation
V
IN
= 4.2 V, I
O
= 0 mA to 30 mA
20
50
mV
V
IN
= 4.2 V, I
O
= 0 mA to 60 mA
40
80
mV
RR
Ripple Rejection
100 mV(rms), f = 400 Hz
55
dB
V
IN
= 4.7 V, I
O
= 10 mA
V/
T
V
O
Temperature Coefficient
V
IN
= 4.7 V, I
O
= 10 mA
0.3
mV/
C
-20
C
T
A
75
C
V
N
Output Noise Voltage
10 Hz
f
100 KHz, I
O
= 10 mA
180
V(rms)
Control Pin
I
CONT
Control Pin Current
On Mode
35
120
A
V
Coff
Control Pin Voltage
Off Mode
V
IN
-0.2
V
IN
V
V
Con
Control Pin Voltage
On Mode
0
0.6
V
Note 2: I
O
(Load Current) is current when V
O
drop down 0.3V from V
O
at I
O
= 30 mA.
TK114xx
11-20-94
Page 4
January, 1995 TOKO, Inc.
TK11435 ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNITS
I
IN1
Supply Current 1
V
IN
= 4.5 V, I
O
= 0 mA
500
900
A
I
IN2
Supply Current 2
V
IN
= 2.5 V, I
O
= 0 mA
1
2.5
A
I
INS
Standby Current
V
IN
= 10 V, Output Off
0.1
A
V
O
Output Voltage Regulation
V
IN
= 4.5 V, I
O
= 30 mA
3.38
3.5
3.62
%
V
DROP
Dropout Voltage
I
O
= 30 mA
0.12
0.3
V
I
O
Output Current
(Note 2)
70
110
mA
I
OR
Recommended Output
70
mA
Current
LinReg
Line Regulation
V
IN
= 4.5 V
9.5 V
7
35
mV
LoaReg
Load Regulation
I
O
= 0 mA to 30 mA
20
55
mV
I
O
= 0 mA to 60 mA
40
95
mV
RR
Ripple Rejection
100 mV(rms), f = 400 Hz
55
dB
V
IN
= 4.5 V, I
O
= 10 mA
V/
T
V
O
Temperature Coefficient
V
IN
= 4.5 V, I
O
= 10 mA
0.3
mV/
C
-20
C
T
A
75
C
V
N
Output Noise Voltage
V
IN
= 4.5 V, I
O
= 10 mA
180
V(rms)
Control Pin
I
CONT
Control Pin Current
On Mode
35
120
A
V
Coff
Control Pin Voltage
Off Mode
V
IN
-0.2
V
IN
V
V
Con
Control Pin Voltage
On Mode
0
0.6
V
Note 2: I
O
(Load Current) is current when V
O
drop down 0.3V from V
O
at I
O
= 30 mA.
11-20-94
TK114xx
January, 1995 TOKO, Inc.
Page 5
TK11437 ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNITS
I
IN1
Supply Current 1
V
IN
= 4.7 V, I
O
= 0 mA
500
900
A
I
IN2
Supply Current 2
V
IN
= 2.7 V, I
O
= 0 mA
1
2.5
A
I
INS
Standby Current
V
IN
= 10 V, Output Off
0.1
A
V
O
Output Voltage Regulation
V
IN
= 4.7 V, I
O
= 30 mA
3.62
3.75
3.88
%
V
DROP
Dropout Voltage
I
O
= 30 mA
0.12
0.3
V
I
O
Output Current
(Note 2)
70
110
mA
I
OR
Recommended Output
70
mA
Current
LinReg
Line Regulation
V
IN
= 4.7 V
9.7 V
7
35
mV
LoaReg
Load Regulation
I
O
= 0 mA to 30 mA
20
110
mV
I
O
= 0 mA to 60 mA
40
100
mV
RR
Ripple Rejection
100 mV(rms), f = 400 Hz
55
dB
V
IN
= 5.2 V, I
O
= 10 mA
V/
T
V
O
Temperature Coefficient
V
IN
= 5.2 V, I
O
= 10 mA
0.4
mV/
C
-20
C
T
A
75
C
V
N
Output Noise Voltage
V
IN
= 4.5 V, I
O
= 10 mA
180
V(rms)
Control Pin
I
CONT
Control Pin Current
On Mode
35
120
A
V
Coff
Control Pin Voltage
Off Mode
V
IN
-0.2
V
IN
V
V
Con
Control Pin Voltage
On Mode
0
0.6
V
Note 2: I
O
(Load Current) is current when V
O
drop down 0.3V from V
O
at I
O
= 30 mA.