LMR14003, LMR14006

SNVSA10 – NOVEMBER 2013

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ABSOLUTE MAXIMUM RATINGS

(1)

Description

Value

Unit

VIN, /SHDN

Unregulated inputs

-0.3 to 45

V

FB

Sense voltage for error amplifiers

-0.3 to 7

V

SW

Switch point for buck converter

-0.3 to 40

V

-2V for 30ns

BOOT

Bootstrap capacitor voltage

-0.3 to 46

V

ESD

Electrostatic Discharge HBM

2

kV

Storage Temperature Range

-55 to 165

°C

Junction temperature range

-40 to 150

°C

(1)

Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which

operation of the device is intended to be functional. For guaranteed specifications and test conditions, see ELECTRICAL

CHARACTERISTICS

RECOMMENDED OPERATING CONDITIONS

(1)

Function

Terminal

Value

Unit

Buck Regulator

VIN

4 to 40

V

CB

4 to 46

V

SW

-1 to 40

V

FB

0 to 5.5

V

Control

/SHDN

0 to 40

V

Temperature

Operating junction temperature

-40 to 125

°C

(1)

Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which

operation of the device is intended to be functional. For guaranteed specifications and test conditions, see ELECTRICAL

CHARACTERISTICS

ELECTRICAL CHARACTERISTICS

Parameter

Conditions

Min

Typ

Max

Unit

VIN (Input Power Supply)

Operating input voltage

4

40

V

Shutdown supply current

EN = 0V

1

3

µA

Undervoltage lockout thresholds

Rising threshold

4

V

Falling threshold

3

Device on : not switching

Sleep mode, no load, VIN = 12V

28

µA

Device on : not switching

Fixed 5V version, VIN = 12V, 25°C

31

µA

/SHDN AND UVLO

Rising /SHDN Threshold Voltage

1.05

1.25

1.38

V

Input current

/SHDN = 2.3V

–4.2

µA

/SHDN = 0.9V

–1

Hysteresis current

–3

µA

HIGH-SIDE MOSFET

On-resistance

VIN = 12V, CB to SW=5.8V

600

m

Ω

fsw = 2.1MHz

95

ns

DMAX : Maximum duty cycle

LMR14003/6 X

96

%

LMR14003/6 Y

97

0.747

0.765

0.782

V

CURRENT LIMIT

Current limit threshold

600

900

mA

1200

1700

mA

2

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