RT9245B Ver la hoja de datos (PDF) - Richtek Technology

Número de pieza

componentes Descripción

Fabricante

RT9245B

Multi-Pha se PWM Controller forK8 CPU CorePower Supply

Richtek Technology 

RT9245B

Parameter

DAC (VID0-VID5) pull up resistor

DAC Pull Up 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

Over-Voltage Trip (VFB − VDAC)

IMAX Voltage

Power Good

Output Low Voltage

Symbol

Test Conditions

VVOSS RVOSS = 100kΩ

GBW

SR

COMP = 10pF

IISPFSS

∆OVT

VIMAX

RADJ = 0Ω

RIMAX = 20kΩ

VPGOODL IPGOOD = 4mA

Min Typ Max Units

2.5 3.5 4.5 kΩ

--

2.1

--

V

0.9 1.0 1.1

V

--

60

--

dB

--

10

-- MHz

--

6

-- V/µs

100 --

--

µA

150 --

--

µA

320 400 450 mV

0.9 1.0 1.1

V

--

--

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 single layer thermal conductivity test board of

JEDEC 51-3 thermal measurement standard.

www.richtek.com

8

DS9245B-02 March 2007

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