ML4880CS datasheet(3/15 Pages) MICRO-LINEAR

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ML4880

ABSOLUTE MAXIMUM RATINGS

Absolute maximum ratings are those values beyond

which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and

functional device operation is not implied.

VIN ............................................................................................... 20V

Peak Driver Output Current ........................................ 2A

VFB Voltage ......................................... GND – 0.3V to 6V

ISENSE Voltage ..................................................... ±500mV

All Other Analog Inputs ......... GND – 0.3V to VIN + 0.3V

All Digital Inputs .................. GND – 0.3V to VREG + 0.3V

Junction Temperature ............................................. 150

°C

Storage Temperature Range .................... –65

°C to 150°C

Lead Temperature (Soldering, 10 sec) ..................... 150

°C

Thermal Resistance (

θJA)...................................... 80°C/W

OPERATING CONDITIONS

VIN Range ..................................................... 5.5V to 18V

Temperature Range

ML4880CS ................................................ 0

°C to 70°C

ML4880ES ............................................. –20

°C to 70°C

ELECTRICAL CHARACTERISTICS

Unless otherwise specified, VIN = 14V, C(VREG) = 10µF, TA = Operating Temperature Range (Note 1)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Shutdown Inputs

Input Low Voltage

0.8

Input High Voltage

2.0

Input Bias Current

–1

µA

Buck Regulator A

Duty Cycle Ratio

VIN = 5.5V, ISENSE A = VFB A = 0V

VFB A Threshold Voltage

1.21

1.25

1.29

ISENSE A Threshold Voltage

–140

–200

–250

Transition Time

CL = 1000pF, 0 to VREG

100

Buck Regulator B

Duty Cycle Ratio

VIN = 5.5V, ISENSE B = VFB B = 0V

VFB B Threshold Voltage

1.21

1.25

1.29

ISENSE B Threshold Voltage

–140

–200

–250

Transition Time

CL = 1000pF, 0 to VREG

100

Flyback Regulator C

Duty Cycle Ratio

VIN = 5.5V, ISENSEC = VFBC = 0V

VIN = 18V, ISENSEC = VFBC = 0V

VFB C Threshold Voltage

1.21

1.25

1.29

ISENSE C Threshold Voltage

–140

–200

–250

Transition Time

CL = 1000pF, 0 to VREG

100

Supply

Linear Regulator Output Voltage

≤ VIN ≤ 18V

6.25

6.99

Linear Regulator Load Regulation

I(VREG) = 0 to 10mA

6.10

6.99

VIN Current

SHDN A/B/C = 5V

300

350

µA

SHDN A/B/C = 0V

350

400

µA

Note 1:

Limits are guaranteed by 100% testing, sampling or correlation with worst case test conditions.

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