LM2575

SLVS569F – JANUARY 2005 – REVISED AUGUST 2015

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6.2 ESD Ratings

VALUE

UNIT

Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins(1)

±2000

Electrostatic

V(ESD)

V

Charged-device model (CDM), per JEDEC specification JESD22-C101, all

discharge

±1000

pins(2)

(1)

JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

(2)

JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

6.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)

MIN

MAX

UNIT

VIN

Supply voltage

4.75

40

V

TJ

Operating virtual junction temperature

–40

125

°C

6.4 Thermal Information

LM2575

THERMAL METRIC(1)

N (PDIP)

UNIT

16 PINS

RθJA

Junction-to-ambient thermal resistance

67

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

51

°C/W

(1)

For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report, SPRA953.

6.5 Electrical Characteristics

ILOAD = 200 mA, VIN = 12 V (unless otherwise noted) (see Figure 16)

PARAMETER

TEST CONDITIONS

TJ

MIN

TYP

MAX

UNIT

VOUT = 5 V, ILOAD = 0.2 A

25°C

1.217

1.23

1.243

VOUT

Feedback voltage

25°C

1.193

1.23

1.267

V

8 V

≤ VIN ≤ 40 V, VOUT = 5 V,

0.2 A

≤ ILOAD ≤ 1 A

Full range

1.18

1.28

η

Efficiency

VIN = 12 V, VOUT = 5 V, ILOAD = 1 A

25°C

77%

25°C

50

100

IIB

Feedback bias current

VOUT = 5 V

nA

Full range

500

25°C

47

52

58

fo

Oscillator frequency(1)

kHz

Full range

42

63

25°C

0.9

1.2

VSAT

Saturation voltage

IOUT = 1 A

(2)

V

Full range

1.4

Maximum duty cycle(3)

25°C

93%

98%

25°C

1.7

2.8

3.6

ICL

Peak current(1) (2)

A

Full range

1.3

4

VIN = 40

(4), Output = 0 V

2

IL

Output leakage current

25°C

mA

VIN = 40

(4), Output = –1 V

7.5

30

IQ

Quiescent current(4)

25°C

5

10

mA

ISTBY

Standby quiescent current

OFF (ON/OFF pin = 5 V)

25°C

50

200

μA

(1)

In the event of an output short or an overload condition, self-protection features lower the oscillator frequency to

∼18 kHz and the

minimum duty cycle from 5% to

∼2%. The resulting output voltage drops to ∼40% of its nominal value, causing the average power

dissipated by the IC to lower.

(2)

Output is not connected to diode, inductor, or capacitor. Output is sourcing current.

(3)

Feedback is disconnected from output and connected to 0 V.

(4)

To force the output transistor off, FEEDBACK is disconnected from output and connected to 12 V.

4

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