LMR12010_15 datasheet(4/26 Pages) TI

No. de pieza	LMR12010

Descripción Electrónicos	SIMPLE SWITCHER 20Vin, 1A Step-Down Voltage Regulator in SOT-23

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Fabricante Electrónico	TI [Texas Instruments]

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LMR12010

SNVS731A – SEPTEMBER 2011 – REVISED SEPTEMBER 2011

www.ti.com

ELECTRICAL CHARACTERISTICS (continued)

Specifications with standard typeface are for TJ = 25°C, and those in boldface type apply over the full Operating

Temperature Range (TJ = -40°C to 125°C). VIN = 5V, VBOOST - VSW = 5V unless otherwise specified. Datasheet min/max

specification limits are specified by design, test, or statistical analysis.

Min

Typ

Max

Symbol

Parameter

Conditions

Units

(1)

(2)

(1)

LMR12010X

2

DMIN

Minimum Duty Cycle

%

LMR12010Y

8

RDS(ON)

Switch ON Resistance

VBOOST - VSW = 3V

300

600

m

Ω

ICL

Switch Current Limit

VBOOST - VSW = 3V

1.2

1.7

2.5

A

IQ

Quiescent Current

Switching

1.5

2.5

mA

Quiescent Current (shutdown)

VEN = 0V

30

nA

LMR12010X (50% Duty Cycle)

2.5

3.5

IBOOST

Boost Pin Current

mA

LMR12010Y (50% Duty Cycle)

4.25

6.0

Shutdown Threshold Voltage

VEN Falling

0.4

VEN_TH

V

Enable Threshold Voltage

VEN Rising

1.8

IEN

Enable Pin Current

Sink/Source

10

nA

ISW

Switch Leakage

40

nA

4

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