CS5171, CS5172, CS5173, CS5174

http://onsemi.com

2

+

1

2

3

45

6

7

8

L1

5 V

C3

22

mF

FB

Test

SS

AGND

PGND

+

MBRS120T3

D1

22

mH

C2

22

mF

R3

1.28 k

3.72 k

R2

C1

SS

3.3 V

R1

5 k

0.01

mF

Figure 1. Applications Diagram

MAXIMUM RATINGS

Rating

Value

Unit

−40 to +150

°C

−65 to +150

°C

45

165

°C/W

°C/W

Lead Temperature Soldering: Reflow (Note 1)

230 Peak

°C

ESD, Human Body Model

1.2

kV

Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit

values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,

damage may occur and reliability may be affected.

1. 60 second maximum above 183

°C.

MAXIMUM RATINGS

Pin Name

Pin Symbol

IC Power Input

30 V

−0.3 V

N/A

200 mA

Shutdown/Sync

SS

30 V

−0.3 V

1.0 mA

1.0 mA

Loop Compensation

6.0 V

−0.3 V

10 mA

10 mA

Voltage Feedback Input

FB

(CS5171/3 only)

10 V

−0.3 V

1.0 mA

1.0 mA

Negative Feedback Input

(transient, 10 ms)

NFB

(CS5172/4 only)

−10 V

10 V

1.0 mA

1.0 mA

Test Pin

Test

6.0 V

−0.3 V

1.0 mA

1.0 mA

Power Ground

PGND

0.3 V

−0.3 V

4 A

10 mA

Analog Ground

AGND

0 V

0 V

N/A

10 mA

Switch Input

40 V

−0.3 V

10 mA

3.0 A