LM2733

SNVS209F – NOVEMBER 2002 – REVISED DECEMBER 2014

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6.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)

MIN

MAX

UNIT

Input Supply Voltage (VIN)

2.7

14.0

V

SHDN Pin Voltage

0

VIN

V

Junction Temperature Range

−40

125

°C

6.4 Thermal Information

LM2733

DBV

UNIT

5 PINS

Junction-to-ambient thermal resistance

210

Junction-to-case (top) thermal resistance

122

Junction-to-board thermal resistance

38.4

°C/W

Junction-to-top characterization parameter

12.8

Junction-to-board characterization parameter

37.5

Junction-to-case (bottom) thermal resistance

n/a

(1)

For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

6.5 Electrical Characteristics

PARAMETER

TEST CONDITIONS

UNIT

Input Voltage

2.7

14

V

Switch Current Limit

1.0

1.5

A

Switch ON Resistance

500

650

m

Ω

Shutdown Threshold

Device ON,

1.5

V

Device OFF,

0.50

+125°C

Shutdown Pin Bias Current

0

0

µA

2

+125°C

Feedback Pin Reference Voltage

1.230

V

1.205

1.255

Feedback Pin Bias Current

60

nA

Quiescent Current

2.1

3.0

mA

1.1

2

400

500

µA

0.024

1

FB Voltage Line Regulation

2.7 V

0.02

%/V

(1)

Limits are specified by testing, statistical correlation, or design.

(2)

Typical values are derived from the mean value of a large quantity of samples tested during characterization and represent the most

likely expected value of the parameter at room temperature.

(3)

Switch current limit is dependent on duty cycle (see Typical Performance Characteristics). Limits shown are for duty cycles

≤ 50%.

4

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