AMS2942AS 查看數據表（PDF） - Advanced Monolithic Systems Inc

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AMS2942AS

HIGH VOLTAGE LOW DROPOUT REGULATOR

Advanced Monolithic Systems Inc 

ABSOLUTE MAXIMUM RATINGS (Note 1)

Input Supply Voltage

-0.3 to +50V

Power Dissipation

Internally Limited

Junction Temperature

+150°C

Storage Temperature

-65°C to +150°C

Soldering Dwell Time, Temperature

Wave

4 seconds, 260°C

Infrared

4 seconds, 240°C

Vapor Phase

4 seconds, 219°C

AMS2942

ESD

2000V

OPERATING RATINGS (Note 1)

Max. Input Supply Voltage

45V

Junction Temperature Range -40°C to +125°C

(TJ) (Note 8)

ELECTRICAL CHARACTERISTICS at VS=VOUT+1V, TA=25°C, unless otherwise specified.

Parameter

Conditions

(Note 2)

AMS2942A

Min. Typ. Max.

AMS2942B

Min. Typ. Max.

Reference Voltage

1.22

1.235

1.25

1.21

1.235

1.26

Reference Voltage

Output Voltage

Temperature Coefficient

Line Regulation (Note 12)

Load Regulation (Note 12)

Dropout Voltage

(Note 5)

Ground Current

Current Limit

Thermal Regulation

Over Temperature (Note 7)

1.19

(Note 10) (Note 4)

6V ≤ V ≤ 45V (Note 13)

IN

100 µA ≤I ≤ 100 mA

L

I = 100µ A

L

I = 100 mA

L

I = 100 µA

L

I = 100 mA

L

V =0

OUT

(Note 11)

1.27

1.185

20

0.05

0.2

0.05

0.2

50

80

380

450

120

180

8

12

160

200

0.05

0.2

1.285

50

0.1

0.4

0.1

0.4

50

80

380

450

120

180

8

12

160

200

0.05

0.2

Output Noise,

10Hz to 100KHz

Feedback Pin Bias Current

Reference Voltage Temperature

Coefficient

Feedback Pin Bias Current

Temperature Coefficient

Error Comparator

C = 1µF

L

C = 200 µF

L

C = 13.3 µF

L

(Bypass = 0.01 µF pins 7 to 1)

( Note 10)

430

160

100

40

80

20

0.1

430

160

100

40

80

50

0.1

Output Leakage Current

Output Low Voltage

Upper Threshold Voltage

V = 42V

OH

V = 4.5V, I = 400µA

IN

OL

(Note 6)

0.05

2

0.05

2

150

250

150

250

40

60

40

60

Lower Threshold Voltage

(Note 6)

75

95

75

95

Hysteresis

Shutdown Input

(Note 6)

15

15

Input logic Voltage

Shutdown Pin Input Current

(Note 3)

Regulator Output Current in

Shutdown (Note 3)

Low (Regulator ON)

High (Regulator OFF)

VS = 2.5V

V = 42V

S

(Note 9)

1.3

0.7

1.3

0.7

2.5

2.5

30

60

600

850

15

50

30

60

600

850

15

50

Units

V

V

ppm/°C

%

%

mV

mV

µA

mA

mA

%/W

µV rms

µV rms

µV rms

nA

ppm/°C

nA/°C

µA

mV

mV

mV

mV

V

V

µA

µA

µA

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140

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