ML4900

3

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

REFERENCE

Output Voltage

3.51

3.535

3.56

V

Line Regulation

0.5

mV/V

UV LOCKOUT

10.2

10.5

10.8

V

300

450

600

mV

PROTECT (5V) Start-up Threshold

4.25

4.4

4.5

V

PROTECT (5V) Hysteresis

400

450

500

mV

SHUTDOWN

Input Low Voltage

0.8

V

Input High Voltage

2.0

V

Delay to Output

50

ns

POWER GOOD COMPARATOR

Output Voltage in Regulation

5k

W pull-up to 5V

4.8

V

Output Voltage out of Regulation

0.4

V

Output Voltage in Shutdown

SHDN = 0V, 5k

W pull-up to 5V

0.4

V

BUCK REGULATOR

Oscillator Frequency

160

200

230

kHz

Duty Cycle Ratio

DAC (D3-D0) Code = 0100,

85

95

%

DAC (D3-D0) Code = 0100,

0

%

DAC (D3-D0) Input Low Voltage

0.8

V

DAC (D3-D0) Input High Voltage

2.0

V

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.

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

SHDN Input Current .............................................. 100

mA

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

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

Lead Temperature (Soldering, 10 sec) ...................... 260ºC

Thermal Resistance (

16-Pin Narrow SOIC ...................................... 100ºC/W

20-Pin TSSOP ................................................. 143ºC/W

OPERATING CONDITIONS

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

PROTECT (5V Supply) Range .................... 4.75V to 5.25V