LK112M18TR STMicroelectronics, LK112M18TR Datasheet

LK112M18TR

Manufacturer Part Number

LK112M18TR

Description

IC REG LDO 150MA 1.8V SOT23-5

Manufacturer

STMicroelectronics

Datasheets

1.LK112M50TR.pdf (17 pages)

2.LK112M60TR.pdf (17 pages)

Specifications of LK112M18TR

Regulator Topology

Positive Fixed

Voltage - Output

1.8V

Voltage - Input

Up to 16V

Number Of Regulators

Current - Output

150mA

Current - Limit (min)

150mA

Operating Temperature

-30°C ~ 125°C

Mounting Type

Surface Mount

Package / Case

SOT-23-5, SC-74A, SOT-25

Number Of Outputs

Polarity

Positive

Input Voltage Max

14 V

Output Voltage

1.8 V

Output Type

Fixed

Dropout Voltage (max)

0.7 V

Output Current

150 mA

Line Regulation

40 mV

Load Regulation

90 mV

Voltage Regulation Accuracy

2 %

Maximum Operating Temperature

+ 125 C

Mounting Style

SMD/SMT

Minimum Operating Temperature

- 40 C

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Voltage - Dropout (typical)

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Other names

497-7806-2
LK112M18TR

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LK112M18TR

Manufacturer:

STM

Quantity:

3 000

Company:

BOSTOCK HK LIMITED

Part Number:

LK112M18TR

Manufacturer:

Company:

Meier Automation Equipment Co., Limited

Part Number:

LK112M18TR

Manufacturer:

Quantity:

20 000

Company:

BOSTOCK HK LIMITED

Part Number:

LK112M18TR(FK18)

Manufacturer:

Company:

BOSTOCK HK LIMITED

Part Number:

LK112M18TRSY1

Manufacturer:

Current page: 1 of 17
Download datasheet (374Kb)

Features

■

Description

The LK112xx 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 ON state when the control pin is pulled

to a logic high level. An external capacitor can be

used connected to the noise bypass pin to lower

the output noise level to 30 µVrms. An internal

PNP pass transistor is used to achieve a low

dropout voltage. The LK112xx has a very low

quiescent current in ON MODE while in OFF

MODE the I

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.

Table 1.

February 2011

Output current up to 150 mA

Low dropout voltage (350 mV at I

Very low quiescent current:

– 0.1 µA in OFF mode and max. 250 µA in

Low output noise:

– typ. 30 µV at I

Wide range of output voltages

Internal current and thermal limit

Operative input voltage from:

– V

ON mode at I

80 kHz

2.5 V to 14 V (for V

LK112XX15

LK112XX18

OUT

Low noise low drop voltage regulator with shutdown function

+ 0.5 to 14 V (for V

Device summary

is reduced down to 100 nA max. The

OUT

= 0 mA

= 60 mA and 10 Hz < f <

OUT

< 2 V)

OUT

LK112XX25

LK112XX33

> 2 V) or from

OUT

= 50 mA)

Doc ID 7362 Rev 16

Part numbers

LK112XX50

LK112XX55

SOT23-5L

LK112XX60

LK112XX80

LK112xx

www.st.com

1/17

Related parts for LK112M18TR

LK112M18TR Summary of contents

Page 1

Low noise low drop voltage regulator with shutdown function Features ■ Output current up to 150 mA ■ Low dropout voltage (350 ■ Very low quiescent current: – 0.1 µA in OFF mode and max. 250 µA ...

Page 2

Contents Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

LK112xx 1 Diagram Figure 1. Schematic diagram Doc ID 7362 Rev 16 Diagram 3/17 ...

Pin configuration 2 Pin configuration Figure 2. Pin connection (top view) Table 2. Pin description Pin n° Symbol Shutdown input: disables the regulator when is connected to GND or to positive 1 SHDN voltage less than 0.6 V Ground pin: ...

Page 5

LK112xx 3 Maximum ratings Table 3. Absolute maximum ratings Symbol V DC input voltage input voltage SHDN I Output current O T Storage temperature range STG T Operating junction temperature range OP Table 4. Thermal data Symbol ...

Page 6

Electrical characteristics 4 Electrical characteristics ° 0.1 µF unless otherwise specified. Table 5. Electrical characteristics for LK112 Symbol Parameter I Quiescent current q V Output voltage O ΔV Line regulation O ΔV ...

Page 7

LK112xx 5 Typical characteristics Unless otherwise specified, T Figure 3. Output voltage vs. temperature Figure 5. Line regulation vs. temperature Figure 7. Dropout voltage vs. temperature = 25 ° µ 2.2 µ ...

Page 8

Typical characteristics Figure 9. Output voltage vs. input voltage Figure 11. Shutdown current vs. shutdown voltage Figure 13. Supply voltage rejection vs. output current 8/17 Figure 10. Shutdown voltage vs. temperature Figure 12. Supply voltage rejection vs. temperature Figure 14. ...

Page 9

LK112xx Figure 15. Supply voltage rejection vs. temperature Figure 17. Quiescent current vs. input voltage Figure 18. Quiescent current vs. shutdown Figure 19. Quiescent current vs. output current Figure 16. Quiescent current vs. temperature voltage Figure 20. Reverse current vs. ...

Page 10

Typical characteristics Figure 21. Stability Figure 23. Start-up transient V =3.5V, V =2.5V 1.8V SHDN C =4.7µF, C =10nF O BYP Figure 25. Line transient V =3.5 to 4.5V, V =2.5V ...

Page 11

LK112xx Figure 27. Line transient V =3.5 to 4.5V, V =2.5V 1.8V SHDN C =1µF, C =1nF =2µs O BYP s f Figure 29. Load transient V =3.5V, V =2.5V 1.8V, ...

Page 12

Package mechanical data 6 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available ...

Page 13

LK112xx Dim. Min. A 0.90 A1 0.00 A2 0.90 b 0.35 C 0.09 D 2. 2.60 L 0.10 SOT23-5L mechanical data mm. Typ. Max. 1.45 0.10 1.30 0.50 0.20 3.00 1.75 0.95 3.00 0.60 Doc ID ...

Page 14

Package mechanical data Tape & reel SOT23-xL mechanical data Dim. Min 12 3.13 Bo 3.07 Ko 1.27 Po 3.9 P 3.9 14/17 mm. Typ. Max. Min. 180 13.0 13.2 0.504 0.795 2.362 ...

Page 15

... LK112xx 7 Order codes Table 6. Order codes Order codes Output voltages (1) LK112M14TR 1.4V LK112M15TR 1.5V LK112M18TR 1.8V (1) LK112M19TR 1.9V (1) LK112M20TR 2.0V (1) LK112M22TR 2.2V (1) LK112M23TR 2.3V (1) LK112M24TR 2.4V LK112M25TR 2.5V (1) LK112M26TR 2.6V (1) LK112M29TR 2.9V (1) LK112M31TR 3.1V LK112M33TR 3.3V (1) LK112M34TR 3.4V (1) LK112M35TR 3.5V (1) LK112M37TR 3 ...

Page 16

Revision history 8 Revision history Table 7. Document revision history Date Revision 31-Jan-2005 8 13-Jun-2006 9 17-Oct-2006 10 18-Jul-2007 11 21-Sep-2007 12 11-Dec-2007 13 12-Feb-2008 14 10-Jul-2008 15 28-Feb-2011 16 16/17 Change maturity code. Order codes updated and new template. ...

Page 17

... LK112xx Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

Related keywords

lk112
lk112m
lk112sm50tr
lk112sm33tr
lk112m80tr
lk112m80
lk112m60tr
lk112m50tr
lk112m33tr
lk112m33
lk112m28tr
lk112m18tr
lk112m18
lk112m15tr
lk112m15
LK112M18TR datasheet
LK112M18TR data sheet
LK112M18TR pdf datasheet
LK112M18TR component
LK112M18TR part
LK112M18TR distributor
LK112M18TR RoHS
LK112M18TR datasheet download