RT8801B Ver la hoja de datos (PDF) - Richtek Technology

Número de pieza

componentes Descripción

Fabricante

RT8801B

Multi-Phase PWM Controller for K8 CPU Core Power Supply with Serial Programming Interface

Richtek Technology 

RT8801B

Preliminary

Parameter

Offset Voltage

VOSS Pin Voltage

Error Amplifier

DC Gain

Gain-Bandwidth Product

Slew Rate

Current Sense GM Amplifier

CSN Full Scale Source Current

CSN Current for OCP

Protection

SS Current

Over-Voltage Trip

VSEN

VDACOUT + VOFFSET

Delay Time

WD Timer, TDL (CL = 100nF)

WD Timer, TDH (CL = 100nF)

Power Good

Output Low Voltage

Symbol

Test Conditions

VVOSS

RVOSS = 100kΩ

GBW

SR

COMP = 10pF

IISPFSS

ISS

ΔOVT

VSS = 1V

VPGOODL IPGOOD = 4mA

Min Typ Max Units

−3

--

3

%

1.6 1.7 1.8

V

--

85

--

dB

--

10

-- MHz

--

3

-- V/μs

150

--

--

μA

-- 150 --

μA

8

13

18

μA

130 140 150 %

-- 200 --

ms

-- 1400 --

ms

--

--

0.2

V

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. θJA is measured in the natural convection at TA = 25°C on a low effective thermal conductivity test board of

JEDEC 51-3 thermal measurement standard.

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10

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DS8801B-04 August 2007

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