5

RT8101/A

Preliminary

DS8101/A-01 March 2007

www.richtek.com

Parameter

Symbol

Test Conditions

Min

Typ

Max

U nits

Ramp Amplitude

--

1.5

--

Reference Voltage

PWM Error Amplifier Reference

0.792

0.8

0.808

V

Error Amplifier

Open Loop DC Gain

--

88

--

dB

Gain-Bandwidth Product

GBW

--

15

--

MH z

Slew R ate

SR

--

6

--

V/us

Upper Gate Source

--

300

--

mA

Upper Gate Source

--

7

10

Ω

Upper Gate Sink

--

4

8

Ω

Lower Gate Source

--

500

--

mA

Lower Gate Source

--

4

6

Ω

Lower Gate Sink

--

2

4

Ω

Protection

Under Voltage Protection

0.3

0.4

0.5

V

Over C urrent Threshold

−210 −250 −290

mV

Soft-Start Interval

2

3.2

4.2

ms

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.

JEDEC 51-7 thermal measurement standard.