參數(shù)資料
型號(hào)： DS21Q48N
廠商： DALLAS SEMICONDUCTOR
元件分類(lèi)： Digital Transmission Interface
英文描述： DATACOM, PCM TRANSCEIVER, PBGA144
封裝： BGA-144
文件頁(yè)數(shù)： 9/16頁(yè)
文件大小： 296K
代理商： DS21Q48N
MAX863
Dual, High-Efficiency, PFM, Step-Up
DC-DC Controller
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDD = +5V, ILOAD = 0mA, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VDD to GND ............................................................-0.3V to +12V
PGND to GND .......................................................-0.3V to +0.3V
SHDN1, SHDN2, SENSE1, LBO to GND ................-0.3V to +12V
EXT1, EXT2 to PGND..................................-0.3V to (VDD + 0.3V)
FB1, FB2, CS1, CS2, SEL,
LBI, BOOT to GND.................................-0.3V to (VDD + 0.3V)
LBO Continuous Output Current.........................................15mA
EXT1, EXT2 Continuous Output Current .............................50mA
Continuous Power Dissipation (TA = +70°C)
QSOP (derate 8.30mW/°C above +70°C) ...................667mW
Operating Temperature Range
MAX863EEE ....................................................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
VDD = OUT1 = BOOT (Note 1)
CONDITIONS
1.5
11
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
(Note 2)
V
2.7
11
VDD
VDD Input Voltage
SHDN1 = VDD, SHDN2 = GND,
measured from VDD
A
35
60
IDD
Quiescent Current
SHDN1 = SHDN2 = VDD, measured from VDD
50
85
VIN = 2.7V to 5V, VOUT1 = 5V,
ILOAD = 300mA, Figure 2
mV/V
8
Line Regulation
VIN = 3.3V, VOUT1 = 5V,
ILOAD = 0mA to 500mA, Figure 2
mV/A
40
Load Regulation
nA
210
IFB, ILBI
FB1, FB2, LBI Input Current
VDD = 1.5V
V
0.7 x VDD
VIH
2.7V < VDD < 11V
1.6
SHDN1, SHDN2, SEL, BOOT
Input High Voltage
mV
85
100
115
VCS
CS1, CS2 Threshold Voltage
s
14
17.5
22
Logic input = VDD or GND
tON
Maximum Switch On-Time
A
125
CS1, CS2 Input Current
A
1
II
SHDN1, SHDN2, SEL, BOOT
Input Current
V
1.225
1.25
1.275
VFB, VLBI
FB1, FB2, LBI
Threshold Voltage (Note 4)
CLOAD = 1nF, 10% to 90%
ns
50
EXT Rise/Fall Time (Note 5)
s
1.6
2
2.4
tOFF
Minimum Switch Off-Time
FB1 = GND
V
4.85
5
5.15
VOUT1
OUT1 Output Voltage
(Note 3)
FB1 = VDD
3.2
3.3
3.4
VDD = 1.5V
V
0.2 x VDD
VIL
2.7V < VDD < 11V
0.4
SHDN1, SHDN2, SEL, BOOT
Input Low Voltage
SHDN1 = SHDN2 = GND
A
1
IDD, SHDN
Shutdown Current
5
EXT On-Resistance
VLBO = 11V, VLBI > 1.275V
A
1
ILBO
LBO Leakage Current
ILBO,SINK = 1mA, VLBI < 1.225V
V
0.1
0.4
VLBO,L
LBO Low Level
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