ML4875 データシートの表示（PDF） - Micro Linear Corporation
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ML4875 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.
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
ML4875
Lead Temperature (Soldering 10 sec.) ..................... 260°C
Thermal Resistance (qJA) Plastic SOIC ................. 160°C/W
OPERATING CONDITIONS
Temperature Range
ML4875CS-X .............................................. 0°C to 70°C
ML4875ES-X ........................................... –20°C to 70°C
VIN Operating Range
ML4875CS-X ................................. 1.0V to VOUT –0.2V
ML4875ES-X .................................. 1.1V to VOUT –0.2V
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, VIN = Operating Voltage Range, TA = Operating Temperature Range (Note 1).
PARAMETER
SUPPLY
VIN Current
VOUT Quiescent Current
VL Quiescent Current
PFM REGULATOR
Pulse Width (TON)
Output Voltage (VOUT)
ML4875-5
ML4875-3
ML4875-T
Load Regulation
ML4875-5
ML4875-3
ML4875-T
Under-Voltage Lockout Threshold
SHUTDOWN
Input Bias Current
Shutdown Threshold
Shutdown Hysteresis
RESET COMPARATOR
DETECT Threshold
DETECT Bias Current
RESET ON Voltage
RESET OFF Current
CONDITIONS
VIN = VOUT – 0.2V
VIN = 4.8V, SHDN = VIN
TON = 0 at VOUT(MAX),
8.9µs - TON - 11.1µs VOUT(MIN)
See Figure 1
VIN = 1.2V, IOUT - 20mA
VIN = 2.4V, IOUT - 100mA
VIN = 1.2V, IOUT - 30mA
VIN = 2.4V, IOUT - 140mA
VIN = 1.2V, IOUT - 35mA
VIN = 2.4V, IOUT - 160mA
VSHDN = high to low
IRESET = 50µA
VRESET = 5V
MIN
TYP.
MAX
50
65
20
30
8
12
1
8.9
10
11.1
4.85
5.0
5.15
3.2
3.3
3.4
2.91
3.0
3.09
4.85
5.0
5.15
4.85
5.0
5.15
3.2
3.3
3.4
3.2
3.3
3.4
2.91
3.0
3.09
2.91
3.0
3.09
0.85
1
–100
100
180
200
220
50
70
194
200
206
–100
100
100
200
1
Note 1: Limits are guaranteed by 100% testing, sampling or correlation with worst case test conditions.
UNITS
µA
µA
µA
µA
µs
V
V
V
V
V
V
V
V
V
V
nA
mV
mV
mV
nA
mV
µA
3
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