LM2731XMFSLASHNOPB datasheet(5/29 Pages) TI

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LM2731

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SNVS217G – MAY 2004 – REVISED SEPTEMBER 2015

6.5 Electrical Characteristics

Limits are for TJ = 25°C. Unless otherwise specified: VIN = 5 V, VSHDN = 5 V, IL = 0 A.

PARAMETER

TEST CONDITIONS

MIN(1)

TYP(2)

MAX(1)

UNIT

VIN

Input Voltage

−40°C ≤ TJ ≤ 125°C

2.7

VIN = 2.7 V

−40°C ≤ TJ ≤

5.4

125°C

RL = 43 Ω

VIN = 3.3 V

X Option(3)

−40°C ≤ TJ ≤

125°C

VIN = 5 V

VIN = 2.7 V

7.5

−40°C ≤ TJ ≤

125°C

RL = 43 Ω

VIN = 3.3 V

Y Option(3)

−40°C ≤ TJ ≤

8.75

125°C

VIN = 5 V

VOUT (MIN)

Minimum Output Voltage Under Load

VIN = 2.7 V

−40°C ≤ TJ ≤

3.75

125°C

RL = 15 Ω

VIN = 3.3 V

6.5

X Option(3)

−40°C ≤ TJ ≤

125°C

VIN = 5 V

VIN = 2.7 V

−40°C ≤ TJ ≤

125°C

RL = 15 Ω

VIN = 3.3 V

Y Option(3)

−40°C ≤ TJ ≤

5.5

125°C

VIN = 5 V

TJ = 25°C

1.8

ISW

Switch Current Limit

See(4)

−40°C ≤ TJ ≤

1.4

125°C

TJ = 25°C

260

400

ISW = 100 mA

−40°C ≤ TJ ≤

Vin = 5 V

500

125°C

RDS(ON)

Switch ON-Resistance

Ω

TJ = 25°C

300

450

ISW = 100 mA

−40°C ≤ TJ ≤

Vin = 3.3 V

550

125°C

−40°C ≤ TJ ≤

Device ON

1.5

125°C

SHDNTH

Shutdown Threshold

−40°C ≤ TJ ≤

Device OFF

0.5

125°C

VSHDN = 0

TJ = 25°C

ISHDN

Shutdown Pin Bias Current

µA

VSHDN = 5 V

−40°C ≤ TJ ≤

125°C

TJ = 25°C

1.230

VFB

Feedback Pin Reference Voltage

VIN = 3 V

−40°C ≤ TJ ≤

1.205

1.255

125°C

TJ = 25°C

IFB

Feedback Pin Bias Current

VFB = 1.23 V

−40°C ≤ TJ ≤

500

125°C

(1)

Limits are ensured 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)

L = 10 µH, COUT = 4.7 µF, duty cycle = maximum

(4)

Switch current limit is dependent on duty cycle (see Typical Characteristics).

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