TK11245AMTL TOKO, Inc, TK11245AMTL Datasheet

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TK11245AMTL

Manufacturer Part Number
TK11245AMTL
Description
TK11245AMTLVOLTAGE REGULATOR WITH ON/OFF SWITCH
Manufacturer
TOKO, Inc
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Company:
Bonase Electronics (HK) Co., Limited Bonase Electronics (HK) Co., Limited
Part Number:
TK11245AMTL
Manufacturer:
TOKO
Quantity:
2 057
Price:
FEATURES
DESCRIPTION
The TK112xxA 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 Vrms.
An internal PNP pass transistor is used to achieve a low
dropout voltage of 70 mV (typ.) at 30 mA load current. The
TK112xxA has a very low quiescent current of 180 A 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.
The TK112xxA is available in either 6 pin SOT-23L or 5 pin
SOT-89-5 surface mount packages.
VOLTAGE CODE
20 = 2.0 V*
21 = 2.1 V
22 = 2.22 V*
25 = 2.5 V*
28 = 2.8 V*
29 = 2.9 V
30 = 3.0 V*
31 = 3.1 V*
33 = 3.3 V*
January, 1996 TOKO, Inc.
Voltage Code
High Voltage Precision at
Active High On/Off Control
Very Low Dropout Voltage 80 mV at 30 mA
Very Low Noise
Very Small SOT-23L or SOT-89-5 Surface Mount
Packages
Internal Thermal Shutdown
Short Circuit Protection
35 = 3.5 V*
36 = 3.6 V
38 = 3.8 V
40 = 4.0 V*
42 = 4.2 V
45 = 4.5 V*
48 = 4.8 V*
49 = 4.9 V
50 = 5.0 V*
55 = 5.5 V
ORDERING INFORMATION
TK112
* Indicates voltage is available in a SOT-89-5 package.
PACKAGE CODE
M: SOT-23L
U: SOT-89-5
A
2.4%
TAPE/REEL CODE
BX : Bulk/Bag
TL : Tape Left
TB : Tape Bottom
Tape/Reel Code
Package Code
(SOT-23L)
(SOT-89-5)
VOLTAGE REGULATOR WITH ON/OFF SWITCH
1-4-96
APPLICATIONS
CONTROL
Battery Powered Systems
Cellular Telephones
Pagers
Personal Communications Equipment
Portable Instrumentation
Portable Consumer Equipment
Radio Control Systems
Toys
Low Voltage Systems
V
IN
S
S
S
S
S
S
S
BLOCK DIAGRAM
REFERENCE
BANDGAP
S
S
S
TK112XXA
PROTECTION
S
CONTROL
THERMAL
BYPASS
CONTROL
BYPASS
S
NOISE
GND
NOISE
+
GND
1
2
3
S
S
1
2
3
S
S
TK112xxA
NOISE BYPASS
+
S
S
S
S
TK112xxA • PO
6
5
4
6
5
4
Page 1
V
V OUT
V IN
V
GND
GND
GND
V
IN
OUT
OUT

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TK11245AMTL Summary of contents

Page 1

... Indicates voltage is available in a SOT-89-5 package 3 5.5 V January, 1996 TOKO, Inc. VOLTAGE REGULATOR WITH ON/OFF SWITCH APPLICATIONS Battery Powered Systems 2.4% Cellular Telephones Pagers Personal Communications Equipment Portable Instrumentation Portable Consumer Equipment Radio Control Systems ...

Page 2

... The output change due to temperature is not included. J 1-4-96 MIN TYP 170 CONT 1.92 2.00 0.16 0.29 180 240 3 0.2 30 1. 1.8 0.3 1.8 V > > January, 1996 TOKO, Inc. MAX UNITS 350 A 0.1 A 2.08 V 0. 150 100 mV 160 mV dB mV/ C V(rms ...

Page 3

... Noise Bypass Terminal Voltage REF Control Terminal Specification I Control Current CONT V Control Voltage CONT t Output Rise Time r Note 1: This is a pulse measurement where T January, 1996 TOKO, Inc 0.1 F, unless otherwise specified. P TEST CONDITIONS mA, Except output off ...

Page 4

... V CONT is constant. The output change due to temperature is not included. J 1-4-96 MIN TYP 170 CONT 2.14 2.22 0.16 0.29 180 240 8. 0.05 30 1. 1.8 0.3 1.8 V January, 1996 TOKO, Inc. MAX UNITS 350 A 0.1 A 2.3 V 0. 150 100 mV 160 mV dB mV/ C V(rms ...

Page 5

... Noise Bypass Terminal Voltage REF Control Terminal Specification I Control Current CONT V Control Voltage CONT t Output Rise Time r Note 1: This is a pulse measurement where T January, 1996 TOKO, Inc 0.1 F, unless otherwise specified. P TEST CONDITIONS mA, Except output off ...

Page 6

... CONT is constant. The output change due to temperature is not included. J 1-4-96 MIN TYP 170 CONT 2.72 2.80 0.16 0.29 180 240 3 0.05 30 1. 1.8 0.3 1.8 V January, 1996 TOKO, Inc. MAX UNITS 350 A 0.1 A 2.88 V 0. 150 100 mV 160 mV dB mV/ C V(rms ...

Page 7

... Noise Bypass Terminal Voltage REF Control Terminal Specification I Control Current CONT V Control Voltage CONT t Output Rise Time r Note 1: This is a pulse measurement where T January, 1996 TOKO, Inc 0.1 F, unless otherwise specified. P TEST CONDITIONS mA, Except output off ...

Page 8

... CONT is constant. The output change due to temperature is not included. J 1-4-96 MIN TYP 170 CONT 2.92 3.00 0.16 0.29 180 240 3 0.05 30 1. 1.8 0.3 1.8 V January, 1996 TOKO, Inc. MAX UNITS 350 A 0.1 A 3.08 V 0. 150 100 mV 160 mV dB mV/ C V(rms ...

Page 9

... Noise Bypass Terminal Voltage REF Control Terminal Specification I Control Current CONT V Control Voltage CONT t Output Rise Time r Note 1: This is a pulse measurement where T January, 1996 TOKO, Inc 0.1 F, unless otherwise specified. P TEST CONDITIONS mA, Except output off ...

Page 10

... CONT is constant. The output change due to temperature is not included. J 1-4-96 MIN TYP 170 CONT 3.22 3.30 0.16 0.29 180 240 3 0.05 30 1. 1.8 0.3 1.8 V January, 1996 TOKO, Inc. MAX UNITS 350 A 0.1 A 3.38 V 0. 150 100 mV 160 mV dB mV/ C V(rms ...

Page 11

... Noise Bypass Terminal Voltage REF Control Terminal Specification I Control Current CONT V Control Voltage CONT t Output Rise Time r Note 1: This is a pulse measurement where T January, 1996 TOKO, Inc 0.1 F, unless otherwise specified. P TEST CONDITIONS mA, Except output off ...

Page 12

... V CONT is constant. The output change due to temperature is not included. J 1-4-96 MIN TYP 170 CONT 3.51 3.60 0.16 0.29 180 240 3 0.1 30 1. 1.8 0.3 1.8 V January, 1996 TOKO, Inc. MAX UNITS 350 A 0.1 A 369 V 0. 150 100 mV 160 mV dB mV/ C V(rms ...

Page 13

... Noise Bypass Terminal Voltage REF Control Terminal Specification I Control Current CONT V Control Voltage CONT t Output Rise Time r Note 1: This is a pulse measurement where T January, 1996 TOKO, Inc 0.1 F, unless otherwise specified. P TEST CONDITIONS mA, Except output off ...

Page 14

... CONT is constant. The output change due to temperature is not included. J 1-4-96 MIN TYP 170 CONT 3.90 4.00 0.16 0.29 180 240 3 0.1 40 1. 1.8 0.3 1.8 V January, 1996 TOKO, Inc. MAX UNITS 350 A 0.1 A 4.10 V 0. 150 100 mV 160 mV dB mV/ C V(rms ...

Page 15

... Noise Bypass Terminal Voltage REF Control Terminal Specification I Control Current CONT V Control Voltage CONT t Output Rise Time r Note 1: This is a pulse measurement where T January, 1996 TOKO, Inc 0.1 F, unless otherwise specified. P TEST CONDITIONS mA, Except output off ...

Page 16

... CONT is constant. The output change due to temperature is not included. J 1-4-96 MIN TYP 170 CONT 4.39 4.50 0.16 0.29 180 240 3 0.1 40 1. 1.8 0.3 1.8 V January, 1996 TOKO, Inc. MAX UNITS 350 A 0.1 A 4.61 V 0. 150 100 mV 160 mV dB mV/ C V(rms ...

Page 17

... Noise Bypass Terminal Voltage REF Control Terminal Specification I Control Current CONT V Control Voltage CONT t Output Rise Time r Note 1: This is a pulse measurement where T January, 1996 TOKO, Inc 0.1 F, unless otherwise specified. P TEST CONDITIONS mA, Except output off ...

Page 18

... CONT is constant. The output change due to temperature is not included. J 1-4-96 MIN TYP 170 CONT 4.78 4.90 0.16 0.29 180 240 3 0.2 40 1. 1.8 0.3 1.8 V January, 1996 TOKO, Inc. MAX UNITS 350 A 0.1 A 5.02 V 0. 150 100 mV 160 mV dB mV/ C V(rms ...

Page 19

... Noise Bypass Terminal Voltage REF Control Terminal Specification I Control Current CONT V Control Voltage CONT t Output Rise Time r Note 1: This is a pulse measurement where T January, 1996 TOKO, Inc 0.1 F, unless otherwise specified. P TEST CONDITIONS mA, Except output off ...

Page 20

... CONT is constant. The output change due to temperature is not included. J 1-4-96 MIN TYP 170 CONT 5.36 5.5 0.16 0.29 180 240 3 0.2 50 1. 1.8 0.3 1.8 V January, 1996 TOKO, Inc. MAX UNITS 350 A 0.1 A 5.63 V 0. 150 100 mV 160 mV dB mV/ C V(rms ...

Page 21

... S I CONT V TYPICAL PERFORMANCE CHARACTERISTICS LOAD REGULATION 20 mV/Div 100 I O (mA) QUIESCENT CURRENT vs. LOAD CURRENT 100 I O (mA) January, 1996 TOKO, Inc. TEST CIRCUITS 2 Transient Response V IN 112XXA Cont + 1 µ F 0.1 µ unless otherwise specified ...

Page 22

... µ F 200 1.0 µ F 150 100 2.2 µ µ 1pF 10pF 100pF 15 January, 1996 TOKO, Inc ° +2 +1 0.22 µ 1000 1000pF 0.01µ F 0.1µ F ...

Page 23

... 2.0 1 TEMPERATURE (°C) TK11220A OUTPUT VOLTAGE vs. LOAD CURRENT ° 150 I O (mA) January, 1996 TOKO, Inc unless otherwise specified A DROPOUT VOLTAGE vs. TEMPERATURE 500 400 300 200 100 0 100 - TEMPERATURE (°C) 17 OUTPUT CURRENT vs. TEMPERATURE 280 ...

Page 24

... V CC (V) 29 1-4-96 OUTPUT VOLTAGE CHANGE vs. TEMPERATURE + - - TEMPERATURE (°C) 53 OUTPUT VOLTAGE CHANGE vs. TEMPERATURE + - - TEMPERATURE (°C) 56 OUTPUT VOLTAGE CHANGE vs. TEMPERATURE + - TEMPERATURE (°C) 28 January, 1996 TOKO, Inc. 100 54 100 57 100 30 ...

Page 25

... I O (mA) TK11230A OUTPUT VOLTAGE vs. LOAD CURRENT ° 150 I O (mA) January, 1996 TOKO, Inc unless otherwise specified A INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD 300 (V) 59 INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD 300 ...

Page 26

... V CC (V) 38 1-4-96 OUTPUT VOLTAGE CHANGE vs. TEMPERATURE + - TEMPERATURE (°C) 34 OUTPUT VOLTAGE CHANGE vs. TEMPERATURE + - TEMPERATURE (°C) 65 OUTPUT VOLTAGE CHANGE vs. TEMPERATURE + - TEMPERATURE (°C) 37 January, 1996 TOKO, Inc. 100 36 100 66 100 39 ...

Page 27

... I O (mA) TK11240A OUTPUT VOLTAGE vs. LOAD CURRENT ° 150 I O (mA) January, 1996 TOKO, Inc unless otherwise specified A INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD 300 V CC (V) 82 INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD ...

Page 28

... V CC (V) 73 1-4-96 OUTPUT VOLTAGE CHANGE vs. TEMPERATURE + - TEMPERATURE (°C) 71 OUTPUT VOLTAGE CHANGE vs. TEMPERATURE + - TEMPERATURE (°C) 43 OUTPUT VOLTAGE CHANGE vs. TEMPERATURE + - - TEMPERATURE (°C) 74 January, 1996 TOKO, Inc. 100 72 100 45 100 75 ...

Page 29

... I O (mA) TK11255A OUTPUT VOLTAGE vs. LOAD CURRENT ° 150 I O (mA) January, 1996 TOKO, Inc unless otherwise specified A INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD 300 V CC (V) 85 INPUT CURRENT vs. INPUT VOLTAGE (NO LOAD ...

Page 30

... A (mW (° taken 0 against the point corresponding to the 150 C D1 with a straight line. January, 1996 TOKO, Inc then when 150 ...

Page 31

... Unmounted 100 (°C) SOT-23L Power Dissipation Curve January, 1996 TOKO, Inc. SOT-89-5 Board Layout . Copper pattern should be as large as possible. Power dissipation is 400 mW for SOT-23L and 800 mV for SOT- 89-5. A low ESR capacitor is recommended. For low temperature operation, select a capacitor with a low ESR at the lowest operating temperature to prevent oscillation, degradation of ripple rejection and increase in noise ...

Page 32

... F. The noise bypass terminal has a P high impedance and care should be taken if the noise bypass capacitor is not used. This terminal is susceptible to external noise and oscillation can occur when C used and the solder pad for this pin is made too large. Page 32 is not P 1-4-96 January, 1996 TOKO, Inc. ...

Page 33

... CMOS/TTL Logic The Input and Control current in the off mode are less than 200 pA. PARALLEL CONNECTION FOR ON/OFF CONTROL On/Off To reduce IC power dissipation, connect a resistor, R will prevent thermal shutdown due to excessive power dissipation. January, 1996 TOKO, Inc. CONTROL FUNCTION ...

Page 34

... The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc ...

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