2)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

V

−0.3V to +6.0V

Voltage on R1, G1, B1, R2, G2,

B2 Pins

−0.3V to P

OUT

+ 0.3V, with 6.0V max

Voltage on All Other Pins

−0.3V to V

with 6.0V max

Continuous Power Dissipation

(Note 3)

Internally Limited

Junction Temperature (T

150˚C

Storage Temperature Range

−65˚C to +150˚C

Maximum Lead Temperature

(Soldering)

(Note 4)

ESD Rating (Note 5)

Human Body Model:

2.0 kV

Machine Model:

200V

Input Voltage Range

3.0V to 5.0V

V

2.69V to 2.87V

Recommended Load Current

0 mA to 120 mA

Junction Temperature (T

−30˚C to +105˚C

Ambient Temperature (T

(Note 6)

−30˚C to +85˚C

Thermal Properties

Junction-to-Ambient Thermal Resistance

(

θ

Limits in standard typeface are for T

(−30˚C

≤ T

A

≤ +105˚C). Unless otherwise noted, specifications apply to the LP3942 Typical Application Circuit (pg. 1) with:

V

Symbol

Parameter

Condition

Min

Typ

Max

Units

CHARGE PUMP 1.5x MODE

V

POUT

Output Voltage

I

OUT

≤ 120 mA

4.5

V

(1.5xV

–(I

R

Accuracy (Note 10)

I

OUT

≤ 120 mA

%

R

OUT

Output Resistance

V

5

7

Ω

G

CP

Charge Pump Gain

1.5

CHARGE PUMP 2x MODE

V

POUT

Output Voltage (Note 10)

I

OUT

≤ 120 mA

4.75

5.0

5.25

V

%

I

OUT

≤ 80 mA

4.75

5.0

5.25

V

%

R

OUT

Output Resistance

V

5

Ω

G

CP

Charge Pump Gain

2

Symbol

Parameter

Condition

Min

Typ

Max

Units

I

Operating Quiescent Current

I

1.0

3.0

mA

I

Operating Quiescent Current

200

300

µA

I

Standby Quiescent Current

NSTBY = 0

NRST pin current excluded

4

10

µA

I

Standby Quiescent Current

NSTBY = 0,

SPI interface inputs at 0V or 1.8V

NRST pin current excluded

0.5

2

µA

f

sw

Switching Frequency

R

500

625

750

kHz

t

start

Startup Time

After writing ‘1’ to NSTBY AND

CP_ON. NRST must be ‘1’.

1

2

ms

T

SHD

Shutdown Threshold.

Hysteresis

160

20

˚C

˚C

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