RT9245AGC 查看數據表（PDF） - Richtek Technology

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RT9245AGC

Multi-Phase PWM Controller for CPU Core Power Supply

Richtek Technology 

RT9245A

Parameter

Symbol

Test Conditions

Min Typ Max Units

DAC (VID0-VID125) pull up resistor

DAC Pull Up Voltage

VRD 10.x

K8

2.5 3.5 4.5 kΩ

--

1.2

--

V

--

2.1

--

V

VOSS Pin Voltage

Error Amplifier

VVOSS

RVOSS = 100kΩ

0.9 1.0 1.1

V

DC Gain

--

60

--

dB

Gain-Bandwidth Product

GBW

--

10

-- MHz

Slew Rate

Current Sense GM Amplifier

SR

COMP = 10pF

--

6

-- V/μs

CSN Full Scale Source Current

CSN Current for OCP

Protection

IISPFSS

100 --

150 --

--

μA

--

μA

Over-Voltage Trip (VFB − VDAC)

IMAX Voltage

Power Good

ΔOVT

VIMAX

RADJ = 0Ω

RIMAX = 20kΩ

320 400 450 mV

0.9 1.0 1.1

V

Output Low Voltage

VPGOODL IPGOOD = 4mA

--

--

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.

www.richtek.com

10

DS9245A-05 March 2007

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