LM2576 Series

Block Diagram

UNREGULATED

DC INPUT

+

1

4

INTERNAL

REGULATOR

ON/OFF

5

ON/OFF

FEED-

BACK

R2

FIXED GAIN

ERROR AMP

DRIVER

3 AMP

R1

1.0k

1.23V

+

-

COMPARATOR

+

-

SWITCH

2

3

OUTPUT

D1

L1

+

L

O

A

BAND-GAP

52kHZ

THERMAL

CURRENT

D

REFERENCE OSCILLATOR

RESET

SHUTDOWN

LIMIT

GND

3.3V, R2 =1.7K

5V, R2 = 3.1K

12V, R2 = 8.84K

15V, R2 =11.3K

For ADJ, Version

R1 = Open, R2 =0

Ω

Ordering information

Temperature

Range

Output Voltage, V

Package Type

-40°C

≤ T

A

≤ 125°C

3.3

5.0

12

15

ADJ

MIK2576HVS-3.3 MIK2576HVS-5.0 MIK2576HVS-12 MIK2576HVS-15 MIK2576HVS-ADJ

MIK2576S-3.3

MIK2576S-5.0

MIK2576S-12

MIK2576S-15

MIK2576S-ADJ

MIK2576HVT-3.3 MIK2576HVT-5.0 MIK2576HVT-12 MIK2576HVT-15 MIK2576HVT-

ADJ

MIK2576T-3.3

MIK2576T-5.0

MIK2576T-12

MIK2576T-15

MIK2576T-ADJ

TO-263

TO-220

2

BEIJING ESTEK ELECTRONICS CO.,LTD