ML6554CU Ver la hoja de datos (PDF) - Fairchild Semiconductor
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ML6554CU Datasheet PDF : 14 Pages
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PRODUCT SPECIFICATION
ML6554
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.
Parameter
PVDD
Voltage on Any Other Pin
Average Switch Current (IAVG)
Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10 sec)
Thermal Resistance (θJC)(Note 2)
Output Current, Source or Sink
Min.
GND – 0.3
-65
Max.
4.5
VIN + 0.3
3.0
150
150
150
2
3.0
Units
V
V
A
°C
°C
°C
°C/W
A
Operating Conditions
Parameter
Temperature Range, CU suffix
Temperature Range, IU suffix
PVDD Operating Range
VCCQ Operating Range
Min.
0
-40
2.0
1.4
Max.
70
+85
4.0
4.0
Units
°C
°C
V
V
Electrical Characteristics
Unless otherwise specified, AVCC = VDD = PVDD = 3.3V ±10%, TA = Operating Temperature Range (Note 1)
Symbol
Parameter
Conditions
Min. Typ. Max. Units
Switching Regulator
VTT
Output Voltage, SSTL_2
(See Figure 1)
VREFOUT Internal Resistor Divider
ZIN
VREF Reference Pin Input
Impedance
IOUT = 0,
VREF = open
IOUT = ±3A,
VREF = open
IOUT = 0
VCCQ = 2.3V 1.12 1.15 1.18 V
VCCQ = 2.5V 1.22 1.25 1.28 V
VCCQ = 2.7V 1.32 1.35 1.38 V
VCCQ = 2.3V 1.09 1.15 1.21 V
VCCQ = 2.5V 1.19 1.25 1.31 V
VCCQ = 2.7V 1.28 1.35 1.42 V
VCCQ = 2.3V 1.139 1.15 1.162 V
VCCQ = 2.5V 1.238 1.25 1.263 V
VCCQ = 2.7V 1.337 1.35 1.364 V
VCCQ = 0
100
kΩ
Switching Frequency
650
kHz
∆VOFFSET Offset Voltage VTT – VREFOUT AVCC = 2.5V No Load VCCQ = 2.5 –20
Supply
20 mV
IQ
Quiescent Current
Buffer
IOUT = 0, no load
VCCQ = 2.5V
IVCCQ
IAVCC
IAVCC SD
IVDD
IVDD SD
IPVDD
6 10 µA
0.5 1.0 mA
0.2 0.5 mA
0.25 1.0 mA
0.2 1.0 mA
100 250 µA
IREF
Output Load Current
3
mA
Notes
1. Limits are guaranteed by 100% testing, sampling, or correlation with worst-case test conditions.
2. Infinite heat sink
REV. 1.1.3 3/8/02
3
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