ML4950CS datasheet(3/10 Pages) MICRO-LINEAR

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ML4950

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.

VOUT ............................................................................................... 7V

Voltage on Any Other Pin ..... GND - 0.3V to VOUT + 0.3V

Peak Switch Current (IPEAK) .......................................... 1A

Average Switch Current (IAVG) .............................. 250mA

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

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

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

Thermal Resistance (

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

OPERATING CONDITIONS

Temperature Range

ML4950CS-X .............................................. 0ºC to 70ºC

ML4950ES-X ........................................... -20ºC to 70ºC

VIN Operating Range

ML4950CS-X ................................. 1.0V to VOUT - 0.2V

ML4950ES-X ................................. 1.1V to VOUT - 0.2V

VOUT Operating Range .......................................2V to 3V

ELECTRICAL CHARACTERISTICS

Unless otherwise specified, VIN = Operating Voltage Range, TA = Operating Temperature Range (Note 1)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

SUPPLY

IIN

VIN Current

VIN = VOUT - 0.2V

µA

IOUT(Q)

VOUT Quiescent Current

µA

IL(Q)

VL Quiescent Current

1µA

PFM REGULATOR

tON

Pulse Width

4.5

5.5

µs

VSENSE

SENSE Compator Threshold Voltage

196

201

208

Load Regulation

See Figure 1

2.425

2.5

2.575

VIN = 1.2V, IOUT £ 25mA

Undervoltage Lockout Threshold

0.85

0.95

RESET COMPARATOR

DETECT Threshold Voltage

194

200

206

DETECT Bias Current

-100

100

RESET Output High Voltage

IOH = -100µA

VOUT-0.2

RESET Output Low Voltage

IOL = 100µA

0.2

Note 1:

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

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