3

ML4775

ELECTRICAL CHARACTERISTICS

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

PARAMETER

CONDITIONS

MIN

TYP.

MAX

UNITS

SUPPLY

VIN Quiescent Current

VIN = VOUT –0.2 V

55

65

µA

VIN = 4.8V, SHDN = VIN

20

30

µA

VOUT Quiescent Current

812

µA

VL Quiescent Current

1µA

PFM REGULATOR

Pulse Width (TON)

8.9

10

11.1

µs

SENSE Comparator

194

200

206

mV

Threshold Voltage (VSENSE)

Load Regulation

See Figure 1

VIN = 1.2V, IOUT - 20mA

4.85

5.0

5.15

V

VIN = 2.4V, IOUT - 105mA

4.85

5.0

5.15

V

Undervoltage Lockout Threshold

0.85

1

V

SHUTDOWN

Input Bias Current

–100

100

nA

Shutdown Threshold

180

200

220

mV

Shutdown Hysteresis

50

70

mV

OPERATING CONDITIONS

Temperature Range

ML4775CS ................................................ 0°C to 70°C

ML4775ES ............................................ –20°C to 70°C

VIN Operating Range

ML4775CS .................................. 1.0V to VOUT –0.2V

ML4775ES .................................. 1.1V to VOUT –0.2V

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, I(PEAK) .................................... 1.5A

Average Switch Current, I(AVG) ............................ 300mA

Junction Temperature ............................................. 150°C

Storage Temperature Range .................... –65°C to 150°C

Lead Temperature (Soldering 10 sec.) .................... 260°C

Thermal Resistance (

qJA) ................................... 160°C/W

Note 1: Limits are guaranteed by 100% testing, sampling or correlation with worst case test conditions.