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TK11480 Datasheet Preview

TK11480 Datasheet

VOLTAGE REGULATOR

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TK114xx
VOLTAGE REGULATOR WITH ON/OFF SWITCH
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 VIN 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
µA) 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.
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
R3
TK114xxM
CONTROL 1
2
GND 3
6 VIN
5
4 VO
KT114xxM.PO
BLOCK DIAGRAM
ORDERING INFORMATION
TK114
Tape/Reel Code
Voltage Code
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
TAPE/REEL CODE
BX : Bulk/Bag
TL : Tape Left
VIN 1
HIGH
CONTROL 2
(HC)
S SS
THERMAL
S
PROTECTION
S
S
+
S
SS
S
S
LOW
CONTROL 3 S
(LC)
TK114xx
BANDGAP
REFERENCE
S
S 8 VO
+S
S 6 GND
KT114xx • BD
January, 1995 TOKO, Inc.
11-20-94
Page 1




TOKO

TK11480 Datasheet Preview

TK11480 Datasheet

VOLTAGE REGULATOR

No Preview Available !

TK114xx
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
IIN1
IIN2
IINS
VO
VDROP
IO
IOR
Supply Current 1
Supply Current 2
Standby Current
Output Voltage Regulation
Dropout Voltage
Output Current
Recommended Output
Current
VIN = 4 V, IO = 0 mA
VIN = 2.5 V, IO = 0 mA
VIN = 10 V, Output Off
VIN = 4 V, IO = 30 mA
IO = 30 mA
500 900
1 2.5
0.1
2.9 3.0
3.1
0.12 0.3
70 110
70
µA
µA
µA
%
V
mA
mA
LinReg
LoaReg
Line Regulation
Load Regulation
RR Ripple Rejection
V/T
VO Temperature Coefficient
VN Output Noise Voltage
Control Pin
VIN = 4 V 9 V
IO = 0 mA to 30 mA
IO = 0 mA to 60 mA
100 mV(rms), f = 400 Hz
VIN = 4.5 V, IO = 10 mA
VIN = 4.5 V, IO = 10 mA
-20 °C TA 75 °C
VIN = 4.5 V, IO = 10 mA
5 30 mV
18 50 mV
36 80 mV
55 dB
±0.3 mV/°C
180 µV(rms)
ICONT
Control Pin Current
On Mode
35 120
VCoff
Control Pin Voltage
Off Mode
VIN-0.2
VIN
VCon
Control Pin Voltage
On Mode
0 0.6
Note 1: Power dissipation must be derated at the rate of 1.6 mW/ °C for operation above TA = 25 °C.
µA
V
V
VIN +
_
TEST CIRCUIT 1
SA
S
+
VOUT
SS
+
1mF VIN
V OUT
10 mF I OUT V
6 54
Page 2
11-20-94
150KW
CONT
+
_
S
V
123
CONT
GND
A
ICONT
NOTE: CONNECT PINS 2 AND 5 TO
GND FOR MAXIMUM HEAT CONDUCTION.
KT114xx • TC01A
January, 1995 TOKO, Inc.


Part Number TK11480
Description VOLTAGE REGULATOR
Maker TOKO
Total Page 24 Pages
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