TK11248BUIL 반도체 회로 부품 판매점
VOLTAGE REGULATOR WITH ON/OFF SWITCH
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 TOKO |
TK112xxB
VOLTAGE REGULATOR WITH ON/OFF SWITCH
FEATURES
s High Voltage Precision at ± 2.0%
s Active High 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 Surface Mount
Packages
s Internal Thermal Shutdown
s Short Circuit Protection
DESCRIPTION
The TK112xxB is a low dropout linear regulator with a built-
in electronic switch. The internal switch can be controlled
by TTL or CMOS logic levels. The device is in the “on” state
when the control pin is pulled to a logic high level. An
external capacitor can be connected to the noise bypass
pin to lower the output noise level to 30 µVrms.
An internal PNP pass transistor is used to achieve a low
dropout voltage of 80 mV (typ.) at 30 mA load current. The
TK112xxB 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 shut down circuitry
limits the junction temperature to below 150 °C. The load
current is internally monitored and the device will shut
down in the presence of a short circuit or overcurrent
condition at the output.
ORDERING INFORMATION
TK112 B
Voltage Code
Package Code
Tape/Reel Code
Temp. Code
VOLTAGE CODE
13 = 1.3 V
33 = 3.3 V
14 = 1.4 V
34 = 3.4 V
15 = 1.5 V
35 = 3.5 V
16 = 1.6 V
36 = 3.6 V
17 = 1.7 V
37 = 3.7 V
18 = 1.8 V
38 = 3.8 V
19 = 1.9 V
39 = 3.9 V
20 = 2.0 V
40 = 4.0 V
21 = 2.1 V
41 = 4.1 V
22 = 2.2 V
42 = 4.2 V
23 = 2.3 V
43 = 4.3 V
24 = 2.4 V
44 = 4.4 V
25 = 2.5 V
45 = 4.5 V
26 = 2.6 V
46 = 4.6 V
27 = 2.7 V
47 = 4.7 V
28 = 2.8 V
48 = 4.8 V
29 = 2.9 V
49 = 4.9 V
30 = 3.0 V
50 = 5.0 V
31 = 3.1 V
55 = 5.5 V
32 = 3.2 V
80 = 8.0 V
PACKAGE CODE:
M: SOT-23L
U: SOT-89
NOTE 1:
1.3 V to 1.9 V available
in SOT-23L package only.
NOTE 2:
1.3 V to 2.4 V available
in C temperature code
(-30 to +80 C) only.
TAPE/REEL CODE
L: Tape Left (SOT-23L)
B: Tape Left (SOT-89)
TEMP. CODE:
C: -30 to +80 C
I: -40 to +85 C
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 TK112xxB is available in either a 6-pin SOT-23L or a
5-pin SOT-89 surface mount package.
TK112xxB
20P
SOT-23L
CONTROL
GND
NOISE BYPASS
VIN
GND
VOUT
SOT-89
NOISE BYPASS
GND
CONTROL
VOUT
GND
VIN
VIN
CONTROL
BLOCK DIAGRAM
THERMAL
PROTECTION
VOUT
BANDGAP
REFERENCE
NOISE
BYPASS
GND
October 1999 TOKO, Inc.
Page 1
TK112xxB
ABSOLUTE MAXIMUM RATINGS TK112xxBC (VOUT ≥ 2.0 V)
Supply Voltage ......................................................... 16 V Storage Temperature Range ................... -55 to +150 °C
Power Dissipation SOT-23L (Note1) .................. 600 mW Operating Temperature Range ...................-30 to +80 °C
Power Dissipation SOT-89 (Note1) .................... 900 mW Operating Voltage Range ............................ 1.8 to 14.5 V
Reverse Bias ............................................................ 10 V Junction Temperature ........................................... 150 °C
TK112xxBC ELECTRICAL CHARACTERISTICS (VOUT ≥ 2.0 V)
Test conditions: TA = 25 °C, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
IQ
ISTBY
VOUT
Line Reg
Load Reg
VDROP
IOUT
IOUT(PULSE)
RR
VNO
Vref
Quiescent Current
Standby Current
Output Voltage
Line Regulation
Load Regulation
Dropout Voltage
Continuous Output Current
Pulse Output Current
Ripple Rejection
Output Noise Voltage
Noise Bypass Terminal
Voltage
IOUT = 0 mA, Excluding ICONT
VIN = 8 V, Output OFF
IOUT = 30 mA
VOUT ≤ 5.5 V, (Note 2)
VOUT ≥ 5.6 V, (Note 2)
I = 1 to 60 mA, (Note 2)
OUT
IOUT = 1 to 100 mA, (Note 2)
IOUT = 1 to 150 mA, (Note 2)
IOUT = 60 mA, (Note 2)
IOUT = 150 mA, (Note 2)
(Note 2)
5 ms pulse, 12.5 % duty cycle
f = 400 Hz, CL = 10 µF, CN = 0.1 µF,
VIN = VOUT + 1.5 V, IOUT = 30 mA,
VRIPPLE = 100 mVrms, (Note 3)
10 Hz ≤ f ≤ 80 kHz, CL = 10 µF,
CN = 0.1 µF, VCN = VOUT + 1.5 V,
IOUT = 60 mA, (Notes 3,4)
∆VOUT /∆T Temperature Coefficient
IOUT = 10 mA
CONTROL TERMINAL SPECIFICATIONS
170 250
0.1
See Table 1
3.0 20
15 40
6 30
18 60
23 90
0.12 0.20
0.26 0.39
150
180
60
µA
µA
V
mV
mV
mV
mV
mV
V
V
mA
mA
dB
30 µVrms
1.25 V
40 ppm/° C
ICONT
Control Current
VCONT = 1.8 V, Output ON
12 35
µA
VCONT(ON) Control Voltage ON
Output ON
1.8 V
VCONT(OFF) Control Voltage OFF
Output OFF
0.6 V
Note 1: When mounted as recommended. Derate at 4.8 mW/°C for SOT-23L and 6.4 mW/°C for SOT-89 packages for operation above 25°C.
Note 2: Refer to “Definition of Terms.”
Note 3: Ripple rejection and noise voltage are affected by the value and characteristics of the capacitor used.
Note 4: Output noise voltage can be reduced by connecting a capacitor to a noise pass terminal.
Gen. Note: Parameters with min. or max. values are 100% tested at TA = 25 °C.
Page 2
October 1999 TOKO, Inc.
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TK11248BUIL regulator
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관련 데이터시트
TK11248BUIB
VOLTAGE REGULATOR WITH ON/OFF SWITCH - TOKO
TK11248BUIL
VOLTAGE REGULATOR WITH ON/OFF SWITCH - TOKO