Jul. 12. 2012 / Preliminary

4/13

* This specifications are subject to be changed without notice

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

ADT6780

Thermally enhanced Low V

Parameters

Symbol

Condition

Min.

Typ.

Max.

Unit

Supply current (shutdown)

-

10

-

㎂

Supply current (quiescent)

-

0.7

-

㎃

Feedback voltage

0.184

0.200

0.216

V

Error Amplifier Voltage Gain

-

-

750

-

V/V

Error Amplifier Transconductance

Δ

-

750

-

㎂

/V

High-Side Switch On Resistance (Note4)

-

-

80

-

mΩ

Low-Side Switch On Resistance (Note4)

-

-

10

-

Ω

High-Side Switch Leakage Current

-

0.1

10

㎂

Peak Current Limit

Duty=50%

-

3

-

A

Current sense to COMP transconductance

--

11

-

A/V

Oscillator frequency

-

-

925

-

㎑

Fold-back frequency

-

125

-

㎑

Maximum Duty cycle

76

86

99

%

Minimum On time

-

-

100

-

㎱

UVLO rising threshold

2.00

2.35

2.70

V

UVLO threshold hysteresis

-

-

250

-

㎷

EN threshold voltage

-

0.8

1.1

1.4

V

Enable pull-up current

-

2.0

-

㎂

Soft-Start Period

C4 = 100㎋

-3

-

㎳

Thermal shutdown (Note4)

-

-

145

-

℃

Note4. guaranteed by design.