If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

VIN pin: Voltage to GND

-0.3V to 6.0V

EN, PWM: Voltage to GND

-0.3V to (V

0.3V) w/ 6.0V max

Continuous Power Dissipation

(Note 3)

Internally Limited

Junction Temperature (T

Storage Temperature Range

Maximum Lead Temperature

(Soldering, 10 sec.)

(Note 4)

ESD Rating(Note 5)

Human Body Model

Machine Model

2.0kV

200V

Input Voltage Range

2.7V to 5.5V

Junction Temperature (T

-40˚C to +105˚C

Ambient Temperature (T

(Note 6)

-40˚C to +85˚C

Thermal Properties

Juntion-to-Ambient Thermal

Resistance (

θ

(Note 7)

45˚C/W

Limits in standard typeface and typical values apply for T

temperature range. Unless otherwise noted, specifications apply to the LM3570 typical Application Circuit (pg.1) with: V

3.6V, V

Ω,C

Symbol

Parameter

Condition

Min

Typ

Max

Units

I

Dx

Output Current Regulation

(All Current Sources Active

Total Current=3xI

(Note 10)

3.0V

≤ V

IN

≤ 5.5V;

2.5V

≤ V

Dx

≤ 3.6V;

R

Ω;

I

18.4

20.0

21.6

mA

3.0V

≤ V

IN

≤ 5.5V;

2.5V

≤ V

Dx

≤ 3.8V;

R

Ω;

I

13.6

15.0

16.4

3.0V

≤ V

IN

≤ 5.5V;

2.5V

≤ V

Dx

≤ 3.9V;

R

Ω;

I

10.0

V

OUT

Regulated Output Voltage

3.3V

≤ V

IN

≤ 5.5V;

0mA

≤ I

Total

≤ 80mA(Note 11)

4.1

4.3

4.6

V

I

Dx-MATCH

Current Matching Between

Any Two Outputs(Note 12)

0.3

%

V

HR

Current Source Headroom

Voltage

(Note 13)

I

R

Ω;

(I

≈ 20mA)

500

mV

I

R

Ω;

(I

≈ 15mA)

375

I

Q

Quiescent Supply Current

3.0V

≤ V

IN

≤ 5.5V;

R

No Load Current

1.5

2.0

mA

3.0V

≤ V

IN

≤ 5.5V;

R

Ω;

No Load Current

1.8

I

SD

Shutdown Supply Current

3.0V

≤ V

IN

≤ 5.5V;

V(EN) = 0V, V(PWM) = 0V

(Note 14)

0.1

1.0

µA

R

OUT

Charge Pump Output

Resistance

3.0V

≤ V

IN

≤ 5.5V

4

Ω

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