LM5002

SNVS496D – JANUARY 2007 – REVISED MARCH 2013

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Electrical Characteristics (continued)

to +125°C. Minimum and Maximum limits are ensured through test, design, or statistical correlation. Typical values represent

otherwise stated

(1).

Symbol

Parameter

Conditions

Min

Typ

Max

Units

OSCILLATOR

Frequency1

225

260

295

KHz

Frequency2

660

780

900

KHz

SYNC Threshold

2.2

2.6

3.2

V

SYNC Pulse Width Minimum

15

ns

PWM COMPARATOR

Maximum Duty Cycle

80

85

90

%

Min On-time

25

ns

Min On-time

0

ns

COMP to PWM Comparator Offset

0.9

1.30

1.55

V

ERROR AMPLIFIER

Internal reference

Feedback Reference Voltage

1.241

1.260

1.279

V

FB Bias Current

10

nA

DC Gain

72

dB

COMP Sink Current

2.5

mA

COMP Short Circuit Current

0.9

1.2

1.5

mA

COMP Open Circuit Voltage

4.8

5.5

6.2

V

COMP to SW Delay

42

ns

Unity Gain Bandwidth

3

MHz

THERMAL SHUTDOWN

Thermal Shutdown Threshold

165

°C

Thermal Shutdown Hysteresis

20

°C

THERMAL RESISTANCE

Junction to Case, SOIC-8

32

°C/W

Junction to Ambient, SOIC-8

140

°C/W

Junction to Case, WSON-8

4.5

°C/W

Junction to Ambient, WSON-8

40

°C/W

4

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