Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

VIN

-0.5V to 7V

FB Voltage

-0.5V to 3V

EN Voltage

-0.5V to 7V

SW Voltage

-0.5V to 7V

ESD Susceptibility

2kV

Junction Temperature (Note 2)

150˚C

Storage Temperature

−65˚C to +150˚C

Soldering Information

Infrared or Convection Reflow

(15 sec)

220˚C

Operating Ratings

VIN

3V to 5.5V

Junction Temperature

−40˚C to +125˚C

standard type are for T

+125˚C. Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent

the most likely parametric norm at T

Symbol

Parameter

Conditions

Min

Typ

Max

Units

V

FB

Feedback Voltage

LLP-6 and SOT23-5

Package

0.588

0.600

0.612

V

∆V

Feedback Voltage Line Regulation

V

0.02

%/V

I

B

Feedback Input Bias Current

0.1

100

nA

UVLO

Undervoltage Lockout

V

2.73

2.90

V

V

1.85

2.3

UVLO Hysteresis

0.43

V

F

SW

Switching Frequency

LM2830-X

1.2

1.6

1.95

MHz

LM2830-Z

2.25

3.0

3.75

D

MAX

Maximum Duty Cycle

LM2830-X

86

94

%

LM2830-Z

82

90

D

MIN

Minimum Duty Cycle

LM2830-X

5

%

LM2830-Z

7

R

DS(ON)

Switch On Resistance

LLP-6 Package

150

m

Ω

SOT23-5 Package

130

195

I

CL

Switch Current Limit

V

1.2

1.75

A

V

EN_TH

Shutdown Threshold Voltage

0.4

V

Enable Threshold Voltage

1.8

I

SW

Switch Leakage

100

nA

I

EN

Enable Pin Current

Sink/Source

100

nA

I

Q

Quiescent Current (switching)

LM2830X V

3.3

5

mA

LM2830Z V

4.3

6.5

mA

Quiescent Current (shutdown)

All Options V

30

nA

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