ISL95870BHRZ-T データシートの表示（PDF） - Intersil

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ISL95870BHRZ-T

PWM DC/DC Controller with VID Inputs for Portable GPU Core-Voltage Regulator

Intersil 

ISL95870, ISL95870A, ISL95870B

Electrical Specifications All typical specifications TA = +25°C, VCC = 5V. Boldface limits apply over the operating

temperature range, -40°C to +100°C, unless otherwise stated. (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

MAX

(Note 11) TYP (Note 11) UNIT

VO Input Leakage Current

ERROR AMPLIFIER

IVOoff EN = GND, VO = 3.6V

-

0

-

µA

FB Input Bias Current

SREF (Note 8)

IFB EN = 5V, FB = 0.50V

-20

-

+50

nA

Soft-Start Current

Voltage Step Current

ISS SREF = Soft-Start Mode

SREF = Setpoint-Stepping Mode

(For “H” Version Parts, TA = -10°C to

IVS +100°C)

8.5

±51

17

25.5

µA

85

±119

µA

SREF = Setpoint-Stepping Mode

±46

±85 ±127

µA

POWER GOOD

PGOOD Pull-down Impedance

PGOOD Leakage Current

GATE DRIVER

RPG PGOOD = 5mA Sink

IPG PGOOD = 5V

-

50

150

Ω

-

0.1

1.0

µA

UGATE Pull-Up Resistance (Note 9)

UGATE Source Current (Note 9)

UGATE Sink Resistance (Note 9)

UGATE Sink Current (Note 9)

LGATE Pull-Up Resistance (Note 9)

LGATE Source Current (Note 9)

LGATE Sink Resistance (Note 9)

LGATE Sink Current (Note 9)

UGATE to LGATE Deadtime

LGATE to UGATE Deadtime

PHASE

RUGPU 200mA Source Current

IUGSRC UGATE - PHASE = 2.5V

RUGPD 250mA Sink Current

IUGSNK UGATE - PHASE = 2.5V

RLGPU 250mA Source Current

ILGSRC LGATE - GND = 2.5V

RLGPD 250mA Sink Current

ILGSNK LGATE - PGND = 2.5V

tUGFLGR UGATE falling to LGATE rising, no load

tLGFUGR LGATE falling to UGATE rising, no load

-

1.1

1.7

Ω

-

1.8

-

A

-

1.1

1.7

Ω

-

1.8

-

A

-

1.1

1.7

Ω

-

1.8

-

A

-

0.55

1.0

Ω

-

3.6

-

A

-

21

-

ns

-

21

-

ns

PHASE Input Impedance

BOOTSTRAP DIODE

RPHASE

-

33

-

kΩ

Forward Voltage

Reverse Leakage

CONTROL INPUTS

VF PVCC = 5V, IF = 2mA

IR

VR = 25V

-

0.58

-

V

-

0

-

µA

EN High Threshold Voltage

EN Low Threshold Voltage

EN Input Bias Current

EN Leakage Current

VID<0,1> High Threshold Voltage

(Note 10)

VENTHR

VENTHF

IEN EN = 5V

IENoff EN = GND

VVIDTHR

2.0

-

-

V

-

-

1.0

V

0.85

1.7

2.55

µA

-

0

1.0

µA

0.65

-

-

V

VID<0,1> Low Threshold Voltage

(Note 10)

VVIDTHF

-

-

0.5

V

VID<0,1> Input Bias Current (Note 10)

VID<0,1> Leakage Current (Note 10)

PROTECTION

IVID

IVIDoff

EN = 5V

EN=0V

-

0.5

-

µA

-

0

-

µA

13

FN6899.0

December 22, 2009

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