ISL6529A datasheet(5/15 Pages) INTERSIL

Part #	ISL6529A

Description	Dual Regulator.Synchronous Rectified Buck PWM and Linear Power Controller

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Manufacturer	INTERSIL [Intersil Corporation]

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5 / 15 page

5

FN9127.1

December 28, 2004

ISL6529A

Absolute Maximum Ratings

Thermal Information

UGATE, LGATE, DRIVE2, . . . . . . . . . . . . . . . GND - 0.3V to 12VCC

5VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +7V

12VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +14V

FB, FB2, COMP, . . . . . . . . . . . . . . . . . GND - 0.3V to 5VCC + 0.3V

ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 4kV

Operating Conditions

Supply Voltage on 5VCC . . . . . . . . . . . . . . . . . . . . . . . . . +5V ±10%

Supply Voltage on 12VCC . . . . . . . . . . . . . . . . . . . . . . . +12V ±10%

Supply Voltage to drain of Upper MOSFETs . . . +3.3V to +5V ±10%

Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . 0oC to 70oC

Junction Temperature Range . . . . . . . . . . . . . . . . . . . 0oC to 125oC

Thermal Resistance

θJA (oC/W)

θJC

SOIC Package (Note 1) . . . . . . . . . . . . . .

68

N/A

QFN Package (Note 2, 3). . . . . . . . . . . . . .

36

6

Maximum Junction Temperature

(Plastic Package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150oC

Maximum Storage Temperature Range . . . . . . . . -65oC to 150oC

Maximum Lead Temperature

(Soldering 10s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300oC

(SOIC - Lead Tips Only)

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the

device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTE:

1.

θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

2.

θJA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See

Tech Brief TB379.

3. For

θJC, the “case temp” location is the center of the exposed metal pad on the package underside.

Electrical Specifications

Recommended Operating Conditions, Unless Otherwise Noted. Refer to Block and Simplified Power System

Diagrams, and Typical Application Schematic

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNITS

VCC SUPPLY CURRENT

Nominal Supply Current 12VCC

ICC

UGATE, LGATE and DRIVE2 Open

-

2.7

3.0

mA

Nominal Supply Current 5VCC

ICC

UGATE, LGATE and DRIVE2 Open

-

3.5

4.5

mA

POWER-ON RESET

Rising 5VCC Threshold

12VCC = 12V

4.25

4.4

4.5

V

Falling 5VCCThreshold

12VCC = 12V

3.75

3.82

4.0

V

Rising 12VCC Threshold

5VCC = 5V

9.6

10.3

10.8

V

Falling 12VCCThreshold

5VCC = 5V

9.3

9.6

10.2

V

OSCILLATOR AND SOFT-START

Free Running Frequency

FOSC

550

600

650

kHz

Ramp Amplitude

DVOSC

-1.5

-

VP-P

Soft-Start Interval

TSS

3.1

3.45

3.75

ms

REFERENCE VOLTAGE

Reference Voltage

VREF

-0.800

-

V

System Accuracy

For the ISL6529AC

-1.0

-

+1.0

%

PWM CONTROLLER ERROR AMPLIFIER

DC Gain

RL = 10k, CL = 10pf

-

80

-

dB

Gain-Bandwidth Product

GBWP

RL = 10k, CL = 10pf

-

15

-

MHz

Slew Rate

SR

RL = 10k, CL = 10pf

-

6

-

V/

µs

FB Input Current

I

I 

VFB = 0.8V

-

20

150

nA

COMP High Output Voltage

VOUT High

3.0

4.5

-

V

COMP Low Output Voltage

VOUT Low

-

0.5

1.0

V

COMP High Output, Source Current

IOUT High

-2.5

-3.3

-

mA

COMP Low Output, Sink Current

IOUT Low

3.5

5.0

-

mA

Undervoltage Level (VFB/VREF)VUV

-

51.5

-

%

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