MP2953B datasheet(5/30 Pages) MPS

5 / 30 page

MP2953B – DIGITAL PWM CONTROLLER WITH PMBUS FOR VR12.5

MP2953B Rev. 1.01

www.MonolithicPower.com

10/9/2015

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

ELECTRICAL CHARACTERISTICS

VDD50 = 5 V, EN = 1V, VID = 0.50 V to 2.6 V, Current going into pin is positive, TJ =-10°C to 125°C,

unless otherwise noted.

Parameter

Symbol

Condition

Min

Typ

Max

Units

REMOTE SENSE AMPLIFIER

Bandwidth

(5)

GBW(RSA)

MHz

VORTN Current

RTN

-70

-400

μA

VOSEN Current

VOSEN

400

μA

OSCILLATOR

Frequency

OSC

IREF=1.23V; RIREF=61.9kΩ

1.56

MHz

SYSTEM INTERFACE CONTROL INPUTS

Input Low Voltage

VIL(EN)

0.4

Input High Voltage

VIH(EN)

0.8

Enable High Leakage

IIH(EN)

EN=2V

3.6

µA

Enable Delay

EN High to SVID Ready

THERMAL THROTTLING CONTROL

VRHOT# Low Output

Impedance

IVRHOT# = 20mA, TA = 25°C

Ω

VRHOT# High Leakage

Current

VRHOT = 1.8V

-3

µA

IMON OUTPUT

Current Gain Accuracy

IMON/ICS_SUM

Measured from ICS_SUM to

IMON, ICS_SUM =1.2mA

1:32

A/A

COMPARATOR (VFB & VREF)

Propagation Delay

(5)

tPD

Common-Mode Range

2.6

COMPARATOR (VFB & VREF-20mV)

Propagation Delay

(5)

tPD

Common-Mode Range

2.6

COMPARATOR (Protection)

Under-Voltage

Threshold

VDIFF (UV)

Relative to Reference DAC

Voltage

−300

Relative to Reference DAC

Voltage

300

Over-Voltage Threshold

VDIFF (OV)

Relative to Protection DAC

Voltage

400

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