If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

V

−0.2V to +6.0V

PGND to SGND

−0.2V to +0.2V

EN, FB, V

CON

(SGND −0.2V)

to (V

w/6.0V max

SW

(PGND −0.2V)

to (PV

w/6.0V max

PV

−0.2V to +0.2V

Continuous Power Dissipation

(Note 3)

Internally Limited

Junction Temperature (T

+150˚C

Storage Temperature Range

−65˚C to +150˚C

Maximum Lead Temperature

(Soldering, 10 sec)

+260˚C

ESD Rating (Notes 4, 13)

Human Body Model:

Machine Model:

2kV

200V

Input Voltage Range

2.7V to 5.5V

Recommended Load Current

0mA to 650mA

Junction Temperature (T

−30˚C to +125˚C

Ambient Temperature (T

(Note 5)

−30˚C to +85˚C

Thermal Properties

Junction-to-Ambient Thermal

100˚C/W

Resistance (

θ

(Note 6)

face type apply over the full operating ambient temperature range (−30˚C

≤ T

≤ +85˚C). Unless otherwise noted, all

specifications apply to the LM3208 with: PV

Symbol

Parameter

Conditions

Min

Typ

Max

Units

V

FB, MIN

Feedback Voltage at minimum

setting

V

0.75

0.80

0.85

V

V

FB, MAX

Feedback Voltage at maximum

setting

V

3.537

3.600

3.683

V

I

SHDN

Shutdown supply current

EN = SW = V

(Note 9)

0.01

2

µA

I

Q

DC bias current into V

DD

V

No Switching (Note 10)

0.6

0.7

mA

R

DSON(P)

Pin-pin resistance for Large

PFET

I

140

180

210

m

Ω

R

DSON(P)

Pin-pin resistance for Small

PFET

I

960

m

Ω

R

I

300

375

450

m

Ω

I

LIM

(L_PFET)

Large PFET (L) Switch peak

current limit

V

985

1100

1200

mA

I

LIM

(S_PFET)

Small PFET (S) Switch peak

current limit

V

650

800

900

mA

F

OSC

Internal oscillator frequency

1.8

2.0

2.2

MHz

V

IH,EN

Logic high input threshold

1.2

V

V

IL,EN

Logic low input threshold

0.5

V

I

PIN,EN

EN pin pull down current

5

10

µA

V

CON,ON

V

switches

0.15

V

I

CON

V

V

µA

Gain

V

0.32V

≤ V

CON

≤ 1.44V

2.5

V/V

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