TK71742SCL/42 datasheet, PDF - EEWORLD Datasheet

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TK71742SCL/42: Description3.3 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PDSO5; Categorysemiconductor Power management; File Size151KB，13 Pages; ManufacturerTOKO, INC.; Websitehttps://www.murata.com/

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TK71742SCL/42 Overview

3.3 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PDSO5

TK71742SCL/42 Parametric

Parameter Name	Attribute value
Minimum input voltage	1.8 V
Maximum input voltage	14 V
Number of functions	1
Number of terminals	5
Processing package description	PLASTIC, SOT-23, 5 PIN
state	Contact Mf
Adjustment type	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum voltage difference 1	0.3000 V
jesd_30_code	R-PDSO-G5
Maximum output current 1	0.2800 A
Rated output voltage 1	3.3 V
Minimum output voltage 1	3.25 V
Maximum output voltage 1	3.35 V
Packaging Materials	PLASTIC/EPOXY
ckage_code	LSSOP
packaging shape	RECTANGULAR
Package Size	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
seated_height_max	1.3 mm
surface mount	YES
Craftsmanship	BIPOLAR
Terminal form	GULL WING
Terminal spacing	0.9500 mm
Terminal location	DUAL
length	2.9 mm
width	1.6 mm

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TK717xxS

LOW DROPOUT VOLTAGE REGULATOR

FEATURES

Very Good Stability (CL = 0.22

is Stable For

Any Type Capacitor withV

OUT

1.8 V)

Built-in Shunt Circuit of Output to GND. The Stored

Energy of the Output Capacitor is Discharged

Quickly

Wide Operating Voltage Range (1.8 V ~ 14 V)

Very Low Dropout Voltage (V

DROP

= 103 mV at

100 mA)

Peak Output Current is 370 mA (0.3 V DROP Point)

Very Low Quiescent Current (I

= 72 uA at I

OUT

= 0 mA)

Good Ripple Rejection Ratio (80 dB at 1 kHz)

High Precision Output Voltage (± 1.5 % or ± 50 mV)

Suitable for Very Low Noise Applications

Built-in Active High On/Off Control (0.1

Max

Standby Current)

Built-in Short Circuit Protection

Built-in Thermal Shutdown

Very Small Surface Mount Package (SOT23-5)

APPLICATIONS

Battery Powered Systems

Measurement Systems

Mobile Communications Systems

Cordless Phone, PHS, GSM, CDMA

Industrial Equipment

Personal Computers, Barcode Readers

low quiescent current of 72

at no load and 0.8 mA with

a 50 mA load. The standby current is typically 100 pA. The

circuit features very good stability. The ripple rejection is 90

dB at 400 Hz and 80 dB at 1 kHz. Stable operation is

achieved with an output capacitor as low as 0.22

mF;

capacitor of any type may be used. (However, the larger the

output capacitor is, the better the overall characteristics will

be.)

The TK717xxS is available in a very small SOT23-5 surface

mount package.

TK717xxS

VIN

GND

VOUT

DESCRIPTION

TK717xxS 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. In the OFF

state, the output impedance becomes very low, quickly

discharging the output capacitor. An external capacitor can

be connected to the noise bypass pin to lower the output

noise level to 30 ~ 50

RMS

. An internal PNP pass transistor

is included to achieve a low dropout voltage of 103 mV at

100 mA load current. The TK717xx has an exceptionally

01 S

CONTROL

NOISE

BYPASS

ORDERING INFORMATION

BLOCK DIAGRAM

TK717

Voltage Code

Package Code

S L

VIN

VOUT

CONTROL CIRCUIT

CONTROL

CONSTANT

CURRENT

SOURCE

Tape/Reel Code

Operating Temp. Range

VOLTAGE CODE

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

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

41 = 4.1 V

42 =

43 =

44 =

45 =

46 =

47 =

48 =

49 =

50 =

4.2 V

4.3 V

4.4 V

4.5 V

4.6 V

4.7 V

4.8 V

4.9 V

5.0 V

TAPE/REEL CODE

L: Tape Left

OPERATING TEMP. RANGE

C: -30 ~ 80°C

PACKAGE CODE

S: SOT23-5

BANDGAP

REFERENCE

THERMAL &

OVER CURRENT

PROTECTION

AUTO

DISCHARGE

CIRCUIT

GND

NOISE

BYPASS

October 2001 TOKO, Inc.

Page 1

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