ML4880CS データシートの表示（PDF） - Micro Linear Corporation
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ML4880CS Datasheet PDF : 15 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 ............................................................................................... 20V
Peak Driver Output Current ........................................ 2A
VFB Voltage ......................................... GND – 0.3V to 6V
ISENSE Voltage ..................................................... ±500mV
All Other Analog Inputs ......... GND – 0.3V to VIN + 0.3V
All Digital Inputs .................. GND – 0.3V to VREG + 0.3V
Junction Temperature ............................................. 150°C
Storage Temperature Range .................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ..................... 150°C
Thermal Resistance (θJA) ...................................... 80°C/W
ML4880
OPERATING CONDITIONS
VIN Range ..................................................... 5.5V to 18V
Temperature Range
ML4880CS ................................................ 0°C to 70°C
ML4880ES ............................................. –20°C to 70°C
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, VIN = 14V, C(VREG) = 10µF, TA = Operating Temperature Range (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
Shutdown Inputs
Input Low Voltage
Input High Voltage
2.0
Input Bias Current
–1
Buck Regulator A
Duty Cycle Ratio
VFB A Threshold Voltage
ISENSE A Threshold Voltage
Transition Time
Buck Regulator B
VIN = 5.5V, ISENSE A = VFB A = 0V
CL = 1000pF, 0 to VREG
86
1.21
–140
1.25
–200
80
Duty Cycle Ratio
VFB B Threshold Voltage
ISENSE B Threshold Voltage
Transition Time
Flyback Regulator C
VIN = 5.5V, ISENSE B = VFB B = 0V
CL = 1000pF, 0 to VREG
92
1.21
–140
1.25
–200
80
Duty Cycle Ratio
VFB C Threshold Voltage
ISENSE C Threshold Voltage
Transition Time
Supply
VIN = 5.5V, ISENSEC = VFBC = 0V
VIN = 18V, ISENSEC = VFBC = 0V
CL = 1000pF, 0 to VREG
86
61
1.21
–140
1.25
–200
80
Linear Regulator Output Voltage
Linear Regulator Load Regulation
VIN Current
7V ≤ VIN ≤ 18V
I(VREG) = 0 to 10mA
SHDN A/B/C = 5V
SHDN A/B/C = 0V
6.25
6.10
300
350
Note 1: Limits are guaranteed by 100% testing, sampling or correlation with worst case test conditions.
MAX
0.8
1
96
1.29
–250
100
98
1.29
–250
100
94
77
1.29
–250
100
6.99
6.99
350
400
UNITS
V
V
µA
%
V
mV
ns
%
V
mV
ns
%
%
V
mV
ns
V
V
µA
µA
3
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