Jul. 12. 2012 / Preliminary

3/13

* This specifications are subject to be changed without notice

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

ADT6780

Thermally enhanced Low V

Functional Block Diagram

Absolute Maximum Ratings (Note1)

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

Note2. Derate 17mW/℃ 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

-0.3

-

30

V

SW pin voltage

V

SW

-0.5

-

V

V

BST pin voltage

V

BST

-0.3

-

V

V

All Other Pins

-

-0.3

-

+6

V

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

P

D

-

-

2.08

W

Thermal resistance (Note3)

Θ

JA

-60

-

℃

/W

Storage temperature

T

STG

-65

-

+150

℃

Junction temperature

T

J.MAX

--

+150

℃

Operating Ratings

Parameter

Symbol

Min.

Typ.

Max.

Unit

Power supply voltage

V

IN

4.5

12.0

28.0

V

Output voltage

V

OUT

0.2

-

16

V

Operating temperature

T

OPR

-40

-

+85

℃

Junction temperature

T

J

--

+125

℃

Figure 2. Functional Block Diagram

EN

FB

Voltage

Reference

Internal

Regulator

Error

Amplifier

7

5

Comparator

Control

LOGIC

+

-

+

-

Driver

GND

4

Shutdown

SW

3

BST

1

VIN

2

OSC

Regulator

+

-

R

S

Σ

Current

Sense

Amplifier

Current

Limit

COMP

6

SS

8

Driver