tk11133scl Toko Inc., tk11133scl Datasheet

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tk11133scl

Manufacturer Part Number
tk11133scl
Description
Voltage Regulator With On/off Switch
Manufacturer
Toko Inc.
Datasheet
1.TK11133SCL.pdf (16 pages)
March 1999 TOKO, Inc.
FEATURES
DESCRIPTION
The TK111xxS 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 85 mV (typ.) at 30 mA load current. The
TK111xxS has a very low quiescent current of 140 A
(typ.) at no load . The standby current is 100 nA maximum.
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.
The TK111xxS is available in a miniature SOT-23-5 surface
mount package.
VOLTAGE CODE
20 = 2.0 V
21 = 2.1 V
22 = 2.2 V
23 = 2.3 V
24 = 2.4 V
25 = 2.5 V
27 = 2.7 V
28 = 2.8 V
29 = 2.9 V
30 = 3.0 V
31 = 3.1 V
Voltage Code
High Voltage Precision at
Active High On/Off Control
Very Low Dropout Voltage (85 mV at 30 mA)
Very Low Noise
Miniature Package (SOT-23-5)
Internal Thermal Shutdown
Short Circuit Protection
Excellent Ripple Rejection (70 dB @ 1 kHz)
Reverse Bias Protection
32 = 3.2 V
33 = 3.3 V
34 = 3.4 V
35 = 3.5 V
36 = 3.6 V
37 = 3.7 V
38 = 3.8 V
39 = 3.9 V
40 = 4.0 V
41 = 4.1 V
42 = 4.2 V
ORDERING INFORMATION
TK111
43 = 4.3 V
44 = 4.4 V
45 = 4.5 V
46 = 4.6 V
47 = 4.7 V
48 = 4.8 V
49 = 4.9 V
50 = 5.0 V
S L
Note 1:
available in C
temperature code
(-30 to +80 C) only
2.0% or
2.0 to 2.3 V
Temp. Code
Package Code
Tape/Reel Code
TEMP. CODE
C: -30 to +80 C
I: -40 to +85 C
TAPE/REEL CODE
L: Tape Left
PACKAGE CODE
S: SOT-23-5
60 mV
VOLTAGE REGULATOR WITH ON/OFF SWITCH
APPLICATIONS
CONTROL
Battery Powered Systems
Cellular Telephones
Pagers
Personal Communications Equipment
Portable Instrumentation
Portable Consumer Equipment
Radio Control Systems
Toys
V IN
5
BLOCK DIAGRAM
REFERENCE
BANDGAP
NOISE BYPASS
TK111xxS
CONTROL
PROTECTION
THERMAL
GND
BYPASS
NOISE
TK111xxS
V IN
V OUT
Page 1
V OUT
GND

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tk11133scl Summary of contents

Page 1

FEATURES High Voltage Precision at Active High On/Off Control Very Low Dropout Voltage ( mA) Very Low Noise Miniature Package (SOT-23-5) Internal Thermal Shutdown Short Circuit Protection Excellent Ripple Rejection ( kHz) Reverse Bias ...

Page 2

TK111xxS ABSOLUTE MAXIMUM RATINGS TK111xxSCL Supply Voltage ......................................................... 16 V Control Terminal Voltage ......................................... 12 V Noise Bypass Terminal Voltage ................................. 5 V Power Dissipation (Note 1) ................................ 500 mW Reverse Bias ............................................................ 10 V TK111xxSCL ELECTRICAL CHARACTERISTICS Test conditions: ...

Page 3

ABSOLUTE MAXIMUM RATINGS TK111xxSIL (V Supply Voltage ......................................................... 15 V Control Terminal Voltage ......................................... 12 V Noise Bypass Terminal Voltage ................................. 5 V Power Dissipation (Note 1) ................................ 500 mW Reverse Bias ............................................................ 10 V TK111xxSIL ELECTRICAL CHARACTERISTICS (V Test ...

Page 4

TK111xxS TK111xxSCL ELECTRICAL CHARACTERISTICS TABLE 1 Output Voltage V OUT(MIN) Voltage Code 2 1.940 V 2 2.040 V 2 2.140 V 2 2.240 V 2 2.340 V 2 ...

Page 5

TK111xxSIL ELECTRICAL CHARACTERISTICS TABLE 2 Test Conditions OUT(TYP) Output Voltage Voltage Code 3.1 V ...

Page 6

TK111xxS V IN TYPICAL PERFORMANCE CHARACTERISTICS LOAD REGULATION V OUT TYPICAL OUT (mA) LINE REGULATION V OUT TYPICAL (V) Page 6 TEST CIRCUIT µF CONT I ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) REVERSE BIAS CURRENT ( 500 400 300 200 100 REV (V) CONTROL CURRENT VS. CONTROL VOLTAGE 10 V OUT ...

Page 8

TK111xxS TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) OUTPUT VOLTAGE VARIATION 3.0 V -10 -20 -30 - NOISE SPECTRUM 0 - 3.3 µ NONE C L ...

Page 9

DEFINITION AND EXPLANATION OF TECHNICAL TERMS OUTPUT VOLTAGE (V ) OUT The output voltage is specified with V and mA. OUT DROPOUT VOLTAGE (V ) DROP The dropout voltage is the difference between the input voltage and ...

Page 10

TK111xxS DEFINITION AND EXPLANATION OF TECHNICAL TERMS (CONT.) 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 capacitor remains charged and the ...

Page 11

DEFINITION AND EXPLANATION OF TECHNICAL TERMS (CONT.) PACKAGE POWER DISSIPATION (P This is the power dissipation level at which the thermal sensor is activated. The IC contains an internal thermal sensor which monitors the junction temperature. When the junction temperature ...

Page 12

TK111xxS INPUT-OUTPUT CAPACITORS Linear regulators require input and output capacitors in order to maintain regulator loop stability. The recommended minimum value of the input capacitor is 0.1 F. The output capacitor should be selected within the Equivalent Series Resistance (ESR) ...

Page 13

APPLICATION INFORMATION (CONT.) The table below shows typical characteristics for several types and values of capacitance. Please note that the ESR varies widely depending upon manufacturer, type, size, and material. Capacitance 1.0 F 2 BOARD ...

Page 14

TK111xxS Page 14 NOTES March 1999 TOKO, Inc. ...

Page 15

March 1999 TOKO, Inc. NOTES TK111xxS Page 15 ...

Page 16

TK111xxS SOT-23-5 Marking +0. -0.05 0.4 0.95 0. 2.9 0.1 Dimensions are shown in millimeters Tolerance: x.x = 0.2 mm (unless otherwise specified) TOKO AMERICA REGIONAL OFFICES Midwest Regional Office Western Regional Office ...

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