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TK11323BMCL 데이터시트 PDF




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부품번호 TK11323BMCL 기능
기능 VOLTAGE REGULATOR WITH ON/OFF SWITCH
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TK11323BMCL 데이터시트, 핀배열, 회로
TK113xxB
VOLTAGE REGULATOR WITH ON/OFF SWITCH
FEATURES
s High Voltage Precision at ± 2.0%
s Active Low On/Off Control
s Very Low Dropout Voltage 80 mV at 30 mA
s Very Low Noise
s Very Small SOT-23L or SOT-89-5 Surface Mount
Packages
s Internal Thermal Shutdown
s Short Circuit Protection
DESCRIPTION
The TK113xxB is a low dropout linear regulator with a built-
in electronic switch. The device is in the ON state when the
control pin is pulled to a low level. An external capacitor can
be connected to the noise bypass pin to lower the output
noise level to 30 µVrms.
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
The TK113xxB is available in either 6 pin SOT-23L or 5 pin
SOT-89-5 surface mount packages.
TK113XXB
An internal PNP pass transistor is used to achieve a low
dropout voltage of 80 mV (typ.) at 30 mA load current. The
TK113xxB has a very low quiescent current of 170 µA at no
load and 1 mA with a 30 mA load. The standby current is
typically 100 nA. The internal thermal shutdown circuitry
limits the junction temperature to below 150 °C. The load
current is internally monitored and the device will shutdown
in the presence of a short circuit or overcurrent condition at
the output.
ORDERING INFORMATION
TK113 B C
Voltage Code
Tape/Reel Code
Package Code
VOLTAGE CODE
20 = 2.0 V 37 = 3.7 V
21 = 2.1 V 38 = 3.8 V
22 = 2.2 V 39 = 3.9 V
23 = 2.3 V 40 = 4.0 V
24 = 2.4 V 41 = 4.1 V
25 = 2.5 V 42 = 4.2 V
26 = 2.6 V 43 = 4.3 V
27 = 2.7 V 44 = 4.4 V
28 = 2.8 V 45 = 4.5 V
29 = 2.9 V 46 = 4.6 V
30 = 3.0 V 47 = 4.7 V
31 = 3.1 V 48 = 4.8 V
32 = 3.2 V 49 = 4.9 V
33 = 3.3 V 50 = 5.0 V
34 = 3.4 V 55 = 5.5 V
35 = 3.5 V 60 = 6.0 V
36 = 3.6 V 80 = 8.0 V
PACKAGE CODE
M: SOT-23L
U: SOT-89-5
May, 1997 TOKO, Inc.
TAPE/REEL CODE
L : Tape Left
(SOT-23L)
B : Tape Bottom
(SOT-89-5)
20Q
CONTROL 1
6 VIN
GND 2
5 GND
NOISE
BYPASS
3
4 VOUT
NOISE
BYPASS 1
GND 2
CONTROL 3
6 VOUT
5 GND
4 VIN
BLOCK DIAGRAM
VIN
SS
S
CONTROL
S
S SS
THERMAL
PROTECTION
S+
S
S
BANDGAP
REFERENCE
S
S
S
SS
S
+
NOISE BYPASS
S VOUT
S
S GND
Page 1




TK11323BMCL pdf, 반도체, 판매, 대치품
TK113xx B
VIN +
_
I IN
AS
+
1 µF
SOT-23L
TEST CIRCUITS
VIN
65
S
+
VOUT
4
S
2.2 µF IO
VO
V
VIN
V
S
IO
SOT-89-5
VO
S
+
2.2 µF
VIN
65 4
IIN
SA
+
1.0 µF
+
_
VIN
VCONT
+
_
S
V
123
CONT
A
Noise Bypass
0.1 µF
ICONT
Transient Response
V
IN
CONT
113XXB
Rs
+
1 µF
+
C
P
0.1 µF
V
OUT
C = 10 µF
L to 0.22
NOISE
BYPASS 1 2 3 CONT
0.1 µF
ICONT
A
•Connect pin 5 to
ground for heat sink
S
V
+
_ VCONT
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25 °C unless otherwise specified
OUTPUT VOLTAGE RESPONSE
(OFFON)
LOAD REGULATION
SHORT CIRCUIT CURRENT
CL = 2.2 µF
VO (5 mV/Div)
5
Cn = 0.01 µF
4
3
Cn = 0.1 µF
ILOAD = 30 mA
T=0 200 400 600 800
TIME (µS)
2
1
0
0
50 100
0
150 300
IOUT (mA)
IO (mA)
OUTPUT VOLTAGE vs. INPUT
VOLTAGE
VOUT (25mV/Div)
VO TYP
IO = 0 mA
IO = 30 mA
IO = 50 mA
IO = 90 mA
LINE REGULATION
50 mV/Div
VO TYP
0
-100
-200
-300
-400
OUTPUT CURRENT vs.
DROPOUT VOLTAGE
0 VIN = VOUT
VIN (V)
(50 mV/Div)
0 10 20
VIN (V)
0 100 200
IO (mA)
Page 4
May, 1997 TOKO, Inc.

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TK11323BMCL 전자부품, 판매, 대치품
TK113xxB
DEFINITION AND EXPLANATIO. N OF TECHNICAL TERMS
OUTPUT VOLTAGE (VO)
RIPPLE REJECTION RATIO
The output voltage is specified with VIN = (VO(TYP) + 1 V)
and IO = 30 mA.
DROPOUT VOLTAGE (VDROP)
The dropout voltage is the difference between the input
voltage and the output voltage at which point the regulator
starts to fall out of regulation. Below this value, the output
voltage will fall as the input voltage is reduced. It is
dependent upon the load current and the junction tempera-
ture.
OUTPUT CURRENT (IO MAX)
The rated output current is specified under the condition
where the output voltage drops 0.3 V below the value
specified with IO = 30 mA. The input voltage is set to VO +1
V, and the current is pulsed to minimize temperature effect.
CONTINUOUS OUTPUT CURRENT (IO)
Normal operated output current. This is limited by package
power dissipation.
PULSE OUTPUT CURRENT (IO (PULSE))
Max pulsewidth 5ms, Duty cycle 12.5%: pulse load only
LINE REGULATION (LINE REG)
Line Regulation is the ability of the regulator to maintain a
constant output voltage as the input voltage changes. The
line regulation is specified as the input voltage is changed
from VIN = VO + 1V to VIN = VO + 6V.
LOAD REGULATION (LOAD REG)
Load regulation is the ability of the regulator to maintain a
constant output voltage as the load current changes. It is
a pulsed measurement to minimize temperature effects
with the input voltage set to VIN = VO +1 V. The load
regulation is specified under two output current step condi-
tions of 1 mA to 60 mA and 1 mA to 100 mA.
QUIESCENT CURRENT (IQ)
The quiescent current is the current which flows through
the ground terminal under no load conditions (IO = 0 mA)
Ripple rejection is the ability of the regulator to attenuate
the ripple content of the input voltage at the output. It is
specified with 100 mVrms, 400 Hz superimposed on the
input voltage, where VIN = VO+ 1.5 V. The output decoupling
capacitor is set to 10 µF, the noise bypass capacitor is set
to 0.1 µF, and the load current is set to 30 mA. Ripple
rejection is the ratio of the ripple content of the output vs. the
input and is expressed in dB.
STANDBY CURRENT
Standby current is the current which flows into the regulator
when the output is turned off by the control function (VCONT
= VIN.) It is measured with VIN = 8 V (9 V for the 8 V output
device.)
SENSOR CIRCUIT
Over current sensor
The overcurrent sensor protects the device in the event
that the output is shorted to ground.
Thermal sensor
The thermal sensor protects the device in the event
that the junction temperature exceeds the safe value
(TJ = 150 °C). This temperature rise can be caused by
external heat, excessive power dissipation caused by
large input to output voltage drops, or excessive output
current. The regulator will shut off when the tempera-
ture exceeds the safe value. As the junction tempera-
tures decrease, the regulator will begin to operate
again. Under sustained fault conditions, the regulator
output will oscillate as the device turns off then resets.
Damage may occur to the device under extreme fault
conditions.
Reverse Voltage Protection
Reverse voltage protection prevents damage due to
the output voltage being higher than the input voltage.
This fault condition can occur when the output capaci-
tor remains charged and the input is reduced to zero,
or when an external voltage higher than the input
voltage is applied to the output side.
May, 1997 TOKO, Inc.
Page 7

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