Advanced Monolithic Systems, Inc.

6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140

AMS2942

Input Supply Voltage

-0.3 to +50V

ESD

2000V

Power Dissipation

Internally Limited

Junction Temperature

+150

°C

Storage Temperature

-65

°C to +150°C

Max. Input Supply Voltage

45V

Soldering Dwell Time, Temperature

Junction Temperature Range

-40

°C to +125°C

Wave

4 seconds, 260

°C

Infrared

4 seconds, 240

°C

Vapor Phase

4 seconds, 219

°C

S

Parameter

Conditions

(Note 2)

AMS2942A

Min.

Typ.

Max.

AMS2942B

Min.

Typ.

Max.

Units

Reference Voltage

1.22

1.235

1.25

1.21

1.235

1.26

V

Reference Voltage

Over Temperature (Note 7)

1.19

1.27

1.185

1.285

V

Output Voltage

Temperature Coefficient

(Note 10) (Note 4)

20

50

ppm/°C

Line Regulation (Note 12)

6V

≤ V

IN

≤ 45V (Note 13)

0.05

0.2

0.1

0.4

%

Load Regulation (Note 12)

100

µA ≤I

L

≤ 100 mA

0.05

0.2

0.1

0.4

%

Dropout Voltage

(Note 5)

I

L

= 100

µ A

I

L

= 100 mA

50

380

80

450

50

380

80

450

mV

mV

Ground Current

I

L

= 100

µA

I

L

= 100 mA

120

8

180

12

120

8

180

12

µA

mA

Current Limit

V

OUT

= 0

160

200

160

200

mA

Thermal Regulation

(Note 11)

0.05

0.2

0.05

0.2

%/W

Output Noise,

10Hz to 100KHz

C

L

= 1

µF

C

L

= 200

µF

C

L

= 13.3

µF

(Bypass = 0.01

µF pins 7 to 1)

430

160

100

430

160

100

µV rms

µV rms

µV rms

Feedback Pin Bias Current

40

80

40

80

nA

Reference Voltage Temperature

Coefficient

( Note 10)

20

50

ppm/°C

Feedback Pin Bias Current

Temperature Coefficient

0.1

0.1

nA/°C

Error Comparator

Output Leakage Current

V

OH

= 42V

0.05

2

0.05

2

µA

Output Low Voltage

V

IN

= 4.5V, I

OL

= 400

µA

150

250

150

250

mV

Upper Threshold Voltage

(Note 6)

40

60

40

60

mV

Lower Threshold Voltage

(Note 6)

75

95

75

95

mV

Hysteresis

(Note 6)

15

15

mV

Shutdown Input

Input logic Voltage

Low (Regulator ON)

High (Regulator OFF)

2.5

1.3

0.7

2.5

1.3

0.7

V

V

Shutdown Pin Input Current

(Note 3)

V

S

= 42V

30

600

60

850

30

600

60

850

µA

µA

Regulator Output Current in

Shutdown (Note 3)

(Note 9)

15

50

15

50

µA