TK71630SCL TOKO, Inc, TK71630SCL Datasheet

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TK71630SCL

Manufacturer Part Number
TK71630SCL
Description
Manufacturer
TOKO, Inc
Datasheet

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December 1999 TOKO, Inc.
DESCRIPTION
The TK716xx is a low dropout linear regulator housed in a
small SOT23-5 package, rated at 500 mW. The phase
compensation in the IC has been optimized to allow the
use of ceramic or tantalum output capacitors. The device
is in the “on” state when the control pin is pulled to a logic
high level. An internal PNP pass transistor is used to
achieve a low dropout voltage of 90 mV (typ.) at 50 mA
load current. This device offers high precision output
voltage of
and dropout voltage make this part ideal for battery pow-
ered applications. This part incorporates an output discon-
nect feature to reduce the reverse bias current in the “off”
state to less than 50 nA.
FEATURES
VOLTAGE CODE*
13 = 1.3 V
14 = 1.4 V
15 = 1.5 V
16 = 1.6 V
17 = 1.7 V
18 = 1.8 V
19 = 1.9 V
20 = 2.0 V
21 = 2.1 V
22 = 2.2 V
23 = 2.3 V
24 = 2.4 V
25 = 2.5 V
26 = 2.6 V
*Check Table 4
for availability.
Available in
Active High On/Off Control
Very Low Quiescent Current
Very Low Dropout Voltage
Reverse Bias Protection
Miniature Package (SOT23-5)
Short Circuit Switch
High Ripple Rejection
Very High Output Impedance (Output Off)
Very Low Noise
Capacitor Code
Package Code
Voltage Code
ORDERING INFORMATION
27 = 2.7 V
28 = 2.8 V
29 = 2.9 V
30 = 3.0 V
31 = 3.1 V
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
2.0 % or
TK716
TK716
TK716
2.0 % or
1.0 %. The low quiescent current
41 = 4.1 V
42 = 4.2 V
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
51 = 5.1 V
52 = 5.2 V
53 = 5.3 V
54 = 5.4 V
1.0 % Output Tolerance
SCL
S I L
SCL H
TAPE/REEL CODE
L: Tape Left
TEMPERATURE CODE
C: Standard Temp. Range
PACKAGE CODE
S: SOT23-5
TOLERANCE CODE
H: 1 % Output Voltage Tolerance
CAPACITOR CODE
None: Ceramic Capacitor
A: Tantalum Capacitor
I: Extended Temp. Range
(Not available in I temp code)
Tolerance Code
Tape/Reel Code
Temp. Code
LOW DROPOUT VOLTAGE REGULATOR
APPLICATIONS
The internal reverse bias protection eliminates the require-
ment for a reverse voltage protection diode, saving cost
and board space. The high 60 dB ripple rejection (400 Hz)
and low noise provide enhanced performance for critical
applications. An external capacitor can be connected to
the noise bypass pin to lower the output noise level to 30
CONTROL
Vrms.
Battery Powered Systems
Cellular Telephones
Pagers
Personal Communications Equipment
Portable Instrumentation
Portable Consumer Equipment
Radio Control Systems
Toys
Low Voltage Systems
V IN
CONTROL
CIRCUIT
BLOCK DIAGRAM
REFERENCE
BANDGAP
GND
TK716xx
CONSTANT
CURRENT
SOURCE
CONTROL
BYPASS
OVERCURRENT
NOISE
THERMAL AND
PROTECTION
GND
V IN
TK716xx
DISCONNECT
+
-
CIRCUIT
BYPASS
V OUT
Page 1
NOISE
V OUT

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TK71630SCL Summary of contents

Page 1

... 5.4 V *Check Table 4 for availability. December 1999 TOKO, Inc. LOW DROPOUT VOLTAGE REGULATOR APPLICATIONS Battery Powered Systems Cellular Telephones Pagers Personal Communications Equipment Portable Instrumentation Portable Consumer Equipment Radio Control Systems Toys Low Voltage Systems ...

Page 2

... < OUT(TYP) December 1999 TOKO, Inc µ µ ...

Page 3

... V 3 3.060 V 3 3.160 V 3 3.260 V 3 3.360 V 3 3.460 V 3 3.560 V 3 3.660 V December 1999 TOKO, Inc mA unless otherwise specified. OUT A V Output OUT(MIN) OUT(MAX) Voltage 3.4 V 1.360 V 3.5 V 1.460 V 3.6 V 1.560 V 3.7 V 1.660 V 1.760 V 3.8 V 3.9 V 1.860 V 1.960 V 4 ...

Page 4

... OUT(TYP) December 1999 TOKO, Inc µ µ ...

Page 5

... December 1999 TOKO, Inc mA unless otherwise specified. OUT A Room Temp. Range ( OUT(MIN) OUT(MAX) 2.360 V 2.440 V 2.460 V 2.540 V 2.560 V 2.640 V 2.660 V 2.740 V 2.760 V 2.840 V 2.860 V 2.940 V 2 ...

Page 6

... X X TK716ASCLH TK716xxSIL December 1999 TOKO, Inc. TK716xxASIL ...

Page 7

... V IN TYPICAL PERFORMANCE CHARACTERISTICS LOAD REGULATION V OUT TYPICAL 0 50 100 I OUT (mA) LINE REGULATION V OUT TYPICAL (V) December 1999 TOKO, Inc. TEST CIRCUIT 1.0 µF GND CONT I CONT V CONT SHORT CIRCUIT PROTECTION 150 0 150 I OUT (mA) ...

Page 8

... TEMPERATURE ( IE-3 IE-6 IE-9 IE- QUIESCENT CURRENT (ON MODE) INPUT VOLTAGE VS. I OUT = 0 mA 2.0 V OUT = OUT = 4 V 1.0 V OUT = (V) GROUND CURRENT 4 I OUT = OUT = OUT = - December 1999 TOKO, Inc. 100 20 100 ...

Page 9

... RIPPLE REJECTION 0 I OUT =30 mA -20 - 3.3 µ 0.01 µF - 3.3 µF - 0.1 µF -100 0.01 0 (kHz) December 1999 TOKO, Inc. 50 100 50 100 10 100 TK716xx CONTROL CURRENT CONT = 3 CONT = 1 - 100 ...

Page 10

... LINE VOLTAGE STEP RESPONSE 1 V OUT + OUT + 0.001 µ 2.2 µ 0.01 µ 2.2 µF TIME (50 µs/ DIV) LOAD CURRENT STEP RESPONSE 0.01 µ 2.2 µF I OUT = OUT = OUT = TIME (2.5 µs/ DIV) December 1999 TOKO, Inc. ...

Page 11

... INPUT VOLTAGE 400 300 200 100 V OUT IS CONNECTED TO GND (V) GROUND CURRENT OUTPUT CURRENT 0 OUT (mA) December 1999 TOKO, Inc. VS VS. 120 160 200 TK716xx CONTROL VOLTAGE VS. TEMPERATURE 2.0 1.5 OUTPUT ON 1.0 OUTPUT OFF 0 100 CONTROL CURRENT VS ...

Page 12

... INSTANTANEOUS SHORT CIRCUIT CURRENT TEMPERATURE VS. 400 OUT + 2.2 µF TANTALUM 300 200 100 Page 12 INPUT VS 100 GROUND CURRENT VS. TEMPERATURE 4 I OUT = OUT = OUT = 100 December 1999 TOKO, Inc. ...

Page 13

... GROUND CURRENT (I ) GND Ground Current is the current which flows through the ground pin(s defined current. December 1999 TOKO, Inc. RIPPLE REJECTION RATIO (RR Ripple rejection is the ability of the regulator to attenuate IN OUT(TYP) the ripple content of the input voltage at the output ...

Page 14

... the point corresponding to the 150 C D1 against the point at which the OUT PD IN(MAX) OUT 500 MOUNTED AS SHOWN 400 300 FREE AIR 200 100 100 SOT23-5 POWER DISSIPATION CURVE December 1999 TOKO, Inc. 4 150 . PD 150 ...

Page 15

... Please refer to the following graphs for output capacitor selection. TK71630S 100 10 1 Stable area 0.1 0. OUT (mA) December 1999 TOKO, Inc. APPLICATION INFORMATION Output side capacitor C L 100 130 can provide stable operation.) = 2.2 F TK71630AS 100 10 1 Stable area 0 ...

Page 16

... LDO regulator using a PNP pass transistor. Because of this necessary to optimize the phase compensation in the IC for use with ceramic or tantalum capacitors. BOARD LAYOUT CONTROL Page 16 ESR vs. TEMPERATURE at 100 kHZ 10 1 Tantalum Cap Ceramic Cap 0.1 0.01 - TEMPERATURE ( C) GND SOT23-5 BOARD LAYOUT V OUT + NOISE BYPASS December 1999 TOKO, Inc. ...

Page 17

... V DROP VOLTAGE REGULATOR ON/OFF CONTROL December 1999 TOKO, Inc. The high output voltage accuracy and low dropout voltage are maintained when the IC is turned ON/OFF by using the control pin as illustrated below OUT High-side switching with a FET is illustrated below. Battery ...

Page 18

... transistor. Note: The TK716xx internal short circuit protection and thermal sensor do not protect the external transistor OUT 3 OUT TK716xx CMOS REGULATOR of the external TK716xx 150 0.22 µF V CONT December 1999 TOKO, Inc. V OUT ...

Page 19

... December 1999 TOKO, Inc. NOTES TK716xx Page 19 ...

Page 20

... Visit our Internet site at http://www.tokoam.com 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 ...

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