LM2695

SNVS413A – JANUARY 2006 – REVISED APRIL 2013

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Electrical Characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Units

6.6

7

7.4

V

V

1.3

0 mA

140

Ω

(2)

9.7

mA

V

5.7

threshold

150

mV

100 mV overdrive

3

µs

Non-switching, FB = 3V

0.5

0.8

mA

RON/SD = 0V

95

200

µA

Switch Characteristics

Rds(on)

Buck Switch Rds(on)

0.33

0.7

Ω

Gate Drive UVLO

3.0

4.4

5.5

V

480

mV

Softstart Pin

Pull-up voltage

2.5

V

Internal current source

12.3

µA

Current Limit

Threshold

Current out of ISEN

1

1.25

1.5

A

Resistance from ISEN to SGND

130

m

Ω

Response time

150

ns

On Timer

On-time

2.1

2.8

3.6

µs

On-time

950

ns

Shutdown threshold

Voltage at RON/SD rising

0.45

0.8

1.2

V

Threshold hysteresis

Voltage at RON/SD falling

37

mV

Off Timer

Minimum Off-time

250

ns

Regulation and Over-Voltage Comparators (FB Pin)

FB regulation threshold

SS pin = steady state

2.440

2.5

2.550

V

FB over-voltage threshold

2.9

V

FB bias current

1

nA

Thermal Shutdown

Thermal shutdown temperature

175

°C

Thermal shutdown hysteresis

20

°C

Thermal Resistance

Junction to Ambient

°C/W

Both Packages

37

0 LFPM Air Flow

Junction to Case

Both Packages

6.6

°C/W

(1)

Typical specifications represent the most likely parametric norm at 25°C operation.

(2)

4

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