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* This specifications are subject to be changed without notice

http://www.ad-tech.co.kr

ADT7350

Sep. 9. 2010 / Rev. 0.0

Functional Block Diagram

EN

FB

Voltage

Reference

Internal

Regulator

Error

Amp

4

3

Comparator

Control

LOGIC

+

-

+

-

Driver

GND

2

Shutdown

SW

6

BST

1

VIN

5

OSC

Regulator

-

+

R

S

Σ

Current

sense

Current

Limit

Absolute Maximum Ratings (Note1)

Note1. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.

Note2. derate 4.0mW/℃ above +25℃. This is recommended to operate under this power dissipation specification.

Note3. Measured on JESD51-7, 4-layer PCB

Parameter

Symbol

Min.

Typ.

Max.

Unit

Power supply voltage

V

IN

--

26

V

SW pin voltage

V

SW

--

27

V

BST pin voltage

V

BST

--

V

V

All Other Pins

-

-0.3

-

+6

V

Max. power dissipation (Ta=25℃) (Note2)

P

D

--

400

mW

Thermal resistance (Note3)

Θ

JA

-250

-

℃/W

Storage temperature

T

STG

-65

-

+150

℃

Junction temperature

T

Jmax

--

+150

℃

Operating Ratings

Parameter

Symbol

Min.

Typ.

Max.

Unit

Power supply voltage

V

IN

4.5

12.0

24.0

V

Output voltage

V

OUT

0.81

-

15

V

Operating temperature

T

OPR

-40

-

+85

℃

Junction temperature

T

J

--

+125

℃