LM2575 datasheet(3/13 Pages) HTC

3 / 13 page

1A, 52kHz, Step-Down Switching Regulator

LM2575

OPERATING RATINGS(Operating Ratings indicate conditions for which the device is

intended to be functional, but do not guarantee specific performance limits. For guaranteed

specifications, see the Electrical Characteristics.)

LM2575-3.3V ([Note 1] Test Circuit Figure 2)

LM2575-5.0V ([Note 1] Test Circuit Figure 2)

LM2575-12V ([Note 1] Test Circuit Figure 2)

LM2575-ADJ ([Note 1] Test Circuit Figure 2)

1.28

HTC

−

3 −

TJ= -40℃ ~ +125℃

1.18

Feedback Voltage(8.0V≤Vin≤40V, 0.5A≤ILOAD≤1A, Vout=5.0V)

TJ=25℃

1.193

Efficiency (Vin=12V, ILOAD=1A, Vout=5.0V)

-77

1.23

1.267

Vout

Feedback Voltage (Vin=12V, ILOAD=0.5A, TJ=25℃)

Vout

1.217

1.23

1.243

12.6

Efficiency (Vin=12V, ILOAD=1A)

-88

Vout

TJ=25℃

11.52

12.48

TJ= -40℃ ~ +125℃

11.4

Output Voltage (15V≤Vin≤40V, 0.5A≤ILOAD≤1A

Output Voltage (Vin = 25V, ILOAD=0.5A, TJ=25℃)

Vout

11.76

12.24

5.25

Efficiency (Vin=12V, ILOAD=1A)

-77

Vout

TJ=25℃

4.8

5.0

5.2

TJ= -40℃ ~ +125℃

4.75

Output Voltage (8.0V≤Vin≤40V, 0.5A≤ILOAD≤1A

Output Voltage (Vin = 12V, ILOAD=0.5A, TJ=25℃)

Vout

4.9

5.0

5.1

3.465

Efficiency (Vin=12V, ILOAD=1A)

-75

Vout

TJ=25℃

3.168

3.3

3.432

TJ= -40℃ ~ +125℃

3.135

Output Voltage (6.0V≤Vin≤40V, 0.5A≤ILOAD≤1A

3.366

Characteristics

Symbol

Min

Output Voltage (Vin = 12V, ILOAD=0.5A, TJ=25℃)

Vout

3.234

3.3

TYP

Supply Voltage

Vin

Max

Unit

Operating Junction Temperature Range

-40 to +125

℃

Rating

Symbol

Value

Unit

ELECTRICAL CHARACTERISTICS / SYSTEM PARAMETERS ([Note 1] Test Circuit Figure 15)

(Unless otherwise specified, Vin = 12 V for the 3.3 V, 5.0 V, and Adjustable version, Vin = 25 V for

the 12 V version, and Vin = 30 V for the 15 V version. ILoad = 500 mA. For typical values TJ = 25°C,

for min/max values TJ is the operating junction temperature range that applies [Note 2], unless

otherwise noted.)

1. External components such as the catch diode, inductor, input and output capacitors can affect

switching regulator system performance.

When the LM2575 is used as shown in the Figure 15 test circuit, system performance will be as

shown in system parameters section .

2. Tested junction temperature range for the LM2575: Tlow = –40°C Thigh = +125°C

LM2575 Datasheet(PDF) 3 Page - HTC Korea TAEJIN Technology Co.

LM2575 Datasheet(HTML) 3 Page - HTC Korea TAEJIN Technology Co.

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13

Datasheet Download

Link URL