LM2595

http://onsemi.com

2

Figure 1. Typical Application

LM2595

12 V

Unregulated

DC Input

+Vin

Cin

220 mF/

50 V

D1

1N5822

Cout

220 mF

Feedback

ON/OFF

GND

5 V @ 1 A

Regulated

Output

L1

68 mH

R2=3.0K

R1=1K

2

3

5

1

4

Output

Cff

Figure 2. Representative Block Diagram

MAXIMUM RATINGS

Rating

Symbol

Value

Unit

Maximum Supply Voltage

45

V

ON/OFF Pin Input Voltage

ON/OFF

V

Output Voltage to Ground (Steady−State)

Output

−1.0

V

Power Dissipation

Case 314B and 314D (TO−220, 5−Lead)

Internally Limited

W

Thermal Resistance, Junction−to−Ambient

65

°C/W

Thermal Resistance, Junction−to−Case

5.0

°C/W

Internally Limited

W

Thermal Resistance, Junction−to−Ambient

70

°C/W

Thermal Resistance, Junction−to−Case

5.0

°C/W

Storage Temperature Range

−65 to +150

°C

Minimum ESD Rating (Human Body Model: C = 100 pF, R = 1.5 kW)

−

2.0

kV

Lead Temperature (Soldering, 10 seconds)

−

260

°C

Maximum Junction Temperature

150

°C

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.