ML4866CS datasheet(3/8 Pages) MICRO-LINEAR

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ML4866

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 ................................................................................................... 7V

Voltage on any other pin ......... GND - 0.3V to VIN + 0.3V

Peak Switch Current (IPEAK) ......................................... 2A

Average Switch Current (IAVG) ..................................... 1A

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

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

Lead Temperature (Soldering 10 Sec.) ..................... 260ºC

Thermal Resistance (

qJA) .................................... 160ºC/W

OPERATING CONDITIONS

Temperature Range

ML4866CS ................................................. 0ºC to 70ºC

ML4866ES .............................................. -20ºC to 70ºC

ML4866IS ............................................... -40ºC to 85ºC

VIN Operating Range ...................................3.5V to 6.5V

ELECTRICAL CHARACTERISTICS

Unless otherwise specified, VIN = 5V, L = 50µH, COUT = 100µF, RCOMP = 390kW, CCOMP = 15nF,

TA = Operating Temperature Range (Note 1)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

REFERENCE

VREF

Output Voltage

0 < I(VREF) < –5µA, IOUT = 0mA

1.22

1.25

1.27

PWM REGULATOR

fOSC

Oscillator Initial Accuracy

IOUT = 200mA, TA = 25°C

100

115

165

kHz

Oscillator Total Variation

Line and Temp

130

185

kHz

Soft Start VIN to VOUT Delay

BURST Burst Mode Threshold

250

400

BURST PWM Mode Threshold

500

850

BURST Bias Current

µA

Output Voltage

IOUT = 200mA

3.2

3.3

3.4

IOUT = 20mA, BURST = 0V

3.28

3.38

3.48

Line Regulation

VIN = 4V to 6.5V, TA = 25°C

±2

Load Regulation

IOUT = 100mA to 500mA,

±2.5

TA = 25°C

IOUT = 5mA to 100mA,

±2.5

BURST = 0V, TA = 25°C

Temperature Stability

TA = -40°C to 85°C

±1

Total Variation

Line, Load, Temp

±5

SHUTDOWN

UVLO Startup Threshold

3.2

3.5

UVLO Shutdown Threshold

2.9

3.1

SHDN Threshold

SHDN Bias Current

–5

µA

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