LM5008

SNVS280G – APRIL 2004 – REVISED MARCH 2013

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Electrical Characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

6.6

7

7.4

V

(2)

9.5

mA

6.3

V

200

mV

100mV overdrive

10

µs

Non-Switching, FB = 3V

485

675

µA

76

150

µA

Switch Characteristics

Buck Switch Rds(on)

(3)

1.15

2.47

Ω

Gate Drive UVLO

3.4

4.5

5.5

V

Gate Drive UVLO Hysteresis

430

mV

Current Limit

Current Limit Threshold

0.41

0.51

0.61

A

Current Limit Response Time

400

ns

OFF time generator (test 1)

35

µs

OFF time generator (test 2)

2.56

µs

On Time Generator

Vin = 10V, Ron = 200K

2.15

2.77

3.5

µs

Vin = 95V, Ron = 200K

200

300

420

ns

Remote Shutdown Threshold

Rising

0.40

0.70

1.05

V

Remote Shutdown Hysteresis

35

mV

Minimum Off Time

Minimum Off Timer

FB = 0V

300

ns

Regulation and OV Comparators

FB Reference Threshold

Internal reference, Trip point for switch ON

2.445

2.5

2.550

V

FB Over-Voltage Threshold

Trip point for switch OFF

2.875

V

FB Bias Current

100

nA

Thermal Shutdown

Tsd

Thermal Shutdown Temperature

165

°C

Thermal Shutdown Hysteresis

25

°C

Thermal Resistance

Junction to Ambient

VSSOP Package

200

°C/W

WSON Package

40

°C/W

(1)

specified by correlating the electrical characteristics to process and temperature variations and applying statistical process control.

(2)

loading.

(3)

For devices procured in the WSON-8 package the Rds(on) limits are specified by design characterization data only.

4

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