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

V

OUT

(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:

2000V

200V

Input Voltage Range

2.7V to 5.5V

Recommended Load Current

0 mA to 650 mA

Junction Temperature (T

−30°C to +125°C

Ambient Temperature (T

 (Note 5)

−30°C to +85°C

Thermal Properties

Junction-to-Ambient Thermal

120°C/W

Resistance (

θ

(Note 6)

boldface type apply over the full operating ambient temperature range (−30°C

specifications apply to the LM3218 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

3.526

3.600

3.696

V

I

SHDN

Shutdown supply current

EN = 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

DROPOUT

Pin

I

300

400

m

Ω

I

LIM

(L_PFET)

Large PFET (L) Switch peak

current limit

V

1100

mA

I

LIM

(S_PFET)

Small PFET (S) Switch peak

current limit

V

800

mA

F

OSC

Internal oscillator frequency

2.0

MHz

V

1.2

V

V

IL,ENABLE

Logic low input threshold

0.5

V

I

PIN,ENABL

E

Pin pull down current

EN = 3.6V

5

10

µA

V

CON,ON

V

switches

0.15

V

I

CON

V

V

±1

µA

Gain

V

0.32V

2.5

V/V

3

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