RT9018A/B

4

DS9018A/B-04

September 2007

www.richtek.com

Note 1. Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for

stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the

operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended

periods may remain possibility to affect device reliability.

Note 2. Devices are ESD sensitive. Handling precaution recommended.

Note 3. The device is not guaranteed to function outside its operating conditions.

Note 4.

2S2P) of JEDEC 51-7 thermal measurement standard. The case point of

Pad) package.

current.

Note 7. Regulation is measured at constant junction temperature by using a 2ms current pulse. Devices are tested for load

regulation in the load range from 1mA to 3A.

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

Chip Enable

EN Input Bias Current

--

12

--

μA

RT9018A

--

10

20

VDD Shutdown

Current

RT9018B

--

--

1

μA

--

--

0.2

EN Threshold

1.2

--

--

V

Power Good

PGOOD Rising Threshold

--

90

93

%

PGOOD Hysteresis

3

10

--

%

PGOOD Sink Capability

--

0.2

0.4

V

PGOOD Delay

0.5

1.5

5

ms

Thermal Protection

Thermal Shutdown Temperature

--

160

--

°C

Thermal Shutdown Hysteresis

--

30

--

°C

Thermal Shutdown Temperature

Fold-back

--

110

--

°C