LM2750LDX-ADJ datasheet(3/15 Pages) NSC

tên linh kiện	LM2750LDX-ADJ

Giải thích chi tiết về linh kiện	Low Noise, 5.0V Regulated Switched Capacitor Voltage Converter

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Absolute Maximum Ratings (Notes 1, 2)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

V

IN Pin: Voltage to Ground

−0.3V to 6V

SD Pin: Voltage to GND

−0.3V to

(V

IN+0.3V)

Junction Temperature (T

J-MAX-ABS)

150˚C

Continuous Power Dissipation

Internally Limited

(Note 3)

Storage Temperature Range

−65˚C to 150˚C

Maximum Lead Temperature

260˚C

(Soldering, 5 sec.)

ESD Rating (Note 4)

Human-body model:

Machine model

2kV

100V

Operating Ratings

(Notes 1, 2)

LM2750-5.0 Input Voltage Range

2.7V to 5.6V

LM2750-ADJ Input Voltage Range

3.8V

≤ V

OUT

≤ 4.9V:

2.7V to (V

OUT+0.7V)

4.9V

≤ V

OUT

≤ 5.2V:

2.7V to 5.6V

LM2750-ADJ Output Voltage Range

3.8V to 5.2V

Recommended Output Current

2.9V

≤ V

IN

≤ 5.6V

0 to 120mA

2.7V

≤ V

IN

≤ 2.9V

0 to 40mA

Junction Temperature (T

J) Range

-40˚C to 125˚C

Ambient Temperature (T

A) Range

-40˚C to 85˚C

(Note 5)

Thermal Information

Junction-to-Ambient Thermal

Resistance, LLP-10

55˚C/W

Package (

θ

JA) (Note 6)

Electrical Characteristics

(Notes 2, 7)

Typical values and limits in standard typeface apply for T

J =25

oC. Limits in boldface type apply over the operating junction

temperature range. Unless otherwise specified: 2.9V

≤ V

IN

≤ 5.6V, V

OUT = 5.0V (LM2750-ADJ), V(SD) = VIN,CFLY = 1µF, CIN

= 2 x 1µF, C

OUT = 2 x 1µF (Note 8).

Symbol

Parameter

Conditions

Min

Typ

Max

Units

V

OUT

Output Voltage

(LM2750-5.0)

2.9V

≤ V

IN

≤ 5.6V,

I

OUT

≤ 120mA

4.80

(-4%)

5.0

5.20

(+4%)

V

(%)

2.7V

≤ V

IN

≤ 2.9V,

I

OUT

≤ 40mA

4.80

(-4%)

5.0

5.20

(+4%)

I

Q

Operating Supply Current

I

OUT = 0mA,

V

IH(MIN)

≤ V(SD) ≤V

IN

510

12

mA

I

SD

Shutdown Supply Current

V(SD) = 0V

2

µA

V

FB

Feedback Pin Voltage

(LM2750-ADJ)

V

IN = 3.1V

1.170

1.232

1.294

V

I

FB

Feedback Pin Input Current

(LM2750-ADJ)

V

FB = 1.4V

1

nA

V

R

Output Ripple

C

OUT = 10µF, IOUT = 100mA

4

mVp-p

C

OUT = 2.2µF, IOUT = 100mA

15

E

PEAK

Peak Efficiency

(LM2750-5.0)

V

IN = 2.7V, IOUT = 40mA

87

%

V

IN = 2.9V, IOUT = 120mA

85

E

AVG

Average Efficiency over Li-Ion

Input Range

(LM2750-5.0)

(Note 10)

V

IN Range: 2.9V - 4.2V,

I

OUT = 120mA

70

%

V

IN Range: 2.9V - 4.2V,

I

OUT = 40mA

67

f

SW

Switching Frequency

1.0

1.7

MHz

t

ON

V

OUT Turn-On Time

V

IN= 3.0V, IOUT = 100mA,

(Note 9)

0.5

ms

I

LIM

Current Limit

V

OUT shorted to GND

300

mA

Shutdown Pin (SD) Characteristics

V

IH

Logic-High SD Input

1.3

V

IN

V

IL

Logic-Low SD Input

0

0.4

V

I

IH

SD Input Current (Note 11)

1.3V

≤ V(SD) ≤ V

IN

15

50

µA

I

IL

SD Input Current

V(SD) = 0V

−1

1

µA

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