ML4894 Ver la hoja de datos (PDF) - Micro Linear Corporation
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ML4894 Datasheet PDF : 10 Pages
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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 ............................................................................................ 16.5V
Peak Driver Output Current....................................... ±2A
VFB Voltage ......................................... GND - 0.3V to 6V
ISENSE Voltage ..................................................... +500mV
All Other Inputs ..................... GND - 0.3V to VIN + 0.3V
SHDN Input Current ............................................. 100µA
ML4894
Junction Temperature............................................. 150°C
Storage Temperature Range ..................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................... 150°C
Thermal Resistance (θJA) .................................... 160°C/W
OPERATING CONDITIONS
VIN Range .................................................... 5.9V to 15V
Temperature Range ................................... -20°C to 70°C
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, VIN = 10V, TA = Operating Temperature Range (Note 1)
PARAMETER
CONDITIONS
MIN
LINEAR REGULATOR
Output Voltage
Line Regulation
TA = 25°C
5.9V < VIN < 15V
3.29
Total Variation
Line, Temp
3.24
SHUTDOWN
Input Low Voltage
Input High Voltage
3.0
Input Low Current
Input High Current
VIL = 0V
VIH = VIN
BUCK REGULATOR
Duty Cycle Ratio
VFB Threshold Voltage
ISENSE Threshold Voltage
VIN = 5.9V, ISENSE = VFB = 0V
5.9V < VIN < 15V
90
4.85
-60
Transition Time
CL = 1000 pF, GND to VIN
SUPPLY
VIN Current
SHDN = 0V
SHDN = 5V
Note 1: Limits are guaranteed by 100% testing, sampling, or correlation with worst case test conditions.
TYP
3.33
1.7
5
-80
50
2
300
MAX
UNITS
3.37
4
3.42
V
mV/V
V
1.0
V
V
100
nA
50
µA
95
%
5.15
V
-100
mV
100
ns
5
µA
750
µA
3
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