LM27313, LM27313-Q1

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SNVS487E – DECEMBER 2006 – REVISED JANUARY 2015

6.6 Electrical Characteristics

Unless otherwise specified: VIN = 5 V, VSHDN = 5 V, IL = 0 mA, and TJ = 25°C. Minimum and Maximum limits are ensured

through test, design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are

provided for reference purposes only.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VIN

Input Voltage

−40°C ≤ TJ ≤ +125°C

2.7

14

V

ISW

Switch Current Limit

See(1)

0.80

1.25

A

RDS(ON)

Switch ON Resistance

ISW = 100 mA

500

650

m

Ω

Device ON,

−40°C ≤ TJ ≤ +125°C

1.5

VSHDN(TH)

Shutdown Threshold

V

Device OFF,

−40°C ≤ TJ ≤

0.50

+125°C

VSHDN = 0

0

VSHDN = 5 V

0

2

ISHDN

Shutdown Pin Bias Current

µA

VSHDN = 5 V, −40°C ≤ TJ ≤

+125°C

VIN = 3 V

1.230

VFB

Feedback Pin Reference Voltage

V

VIN = 3 V, −40°C ≤ TJ ≤ +125°C

1.205

1.255

IFB

Feedback Pin Bias Current

VFB = 1.23 V

60

nA

VSHDN = 5 V, Switching

2.1

mA

VSHDN = 5 V, Switching, −40°C ≤

3.0

TJ ≤ +125°C

IQ

Quiescent Current

VSHDN = 5 V, Not Switching

400

VSHDN = 5 V, Not Switching,

500

µA

−40°C ≤ TJ ≤ +125°C

VSHDN = 0

0.024

1

ΔVFB/ΔVIN

FB Voltage Line Regulation

2.7 V

≤ VIN ≤ 14 V

0.02

%/V

1.6

fSW

Switching Frequency

MHz

−40°C ≤ TJ ≤ +125°C

1.15

1.90

88%

DMAX

Maximum Duty Cycle

−40°C ≤ TJ ≤ +125°C

80%

IL

Switch Leakage

Not Switching, VSW = 5 V

1

µA

(1)

Switch current limit is dependent on duty cycle. Limits shown are for duty cycles

≤ 50%. See Figure 15.

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