LM2830 datasheet(4/33 Pages) TI

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LM2830

SNVS454D – AUGUST 2006 – REVISED APRIL 2013

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Electrical Characteristics

VIN = 5V unless otherwise indicated under the Conditions column. Limits in standard type are for TJ = 25°C only; limits in

boldface type apply over the junction temperature (TJ) range of -40°C to +125°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.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

VFB

Feedback Voltage

WSON and SOT-23 Package

0.588

0.600

0.612

ΔVFB/VIN

Feedback Voltage Line Regulation

VIN = 3V to 5V

0.02

%/V

Feedback Input Bias Current

0.1

100

VIN Rising

2.73

2.90

Undervoltage Lockout

UVLO

VIN Falling

1.85

2.3

UVLO Hysteresis

0.43

LM2830-X

1.2

1.6

1.95

FSW

Switching Frequency

MHz

LM2830-Z

2.25

3.0

3.75

LM2830-X

DMAX

Maximum Duty Cycle

LM2830-Z

LM2830-X

DMIN

Minimum Duty Cycle

LM2830-Z

WSON Package

150

RDS(ON)

Switch On Resistance

Ω

SOT-23 Package

130

195

ICL

Switch Current Limit

VIN = 3.3V

1.2

1.75

Shutdown Threshold Voltage

0.4

VEN_TH

Enable Threshold Voltage

1.8

ISW

Switch Leakage

100

IEN

Enable Pin Current

Sink/Source

100

LM2830X VFB = 0.55

3.3

Quiescent Current (switching)

LM2830Z VFB = 0.55

4.3

6.5

Quiescent Current (shutdown)

All Options VEN = 0V

WSON Package

Junction to Ambient

θJA

°C/W

0 LFPM Air Flow(1)

SOT-23 Package

118

WSON Package

θJC

Junction to Case(1)

°C/W

SOT-23 Package

TSD

Thermal Shutdown Temperature

165

°C

(1)

Applies for packages soldered directly onto a 3” x 3” PC board with 2oz. copper on 4 layers in still air.

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