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參數(shù)資料
| 型號(hào)： | MAX1631EAI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers |
| 中文描述： | SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | 5.30 MM, 0.65 MM PITCH, SSOP-28 |
| 文件頁(yè)數(shù)： | 3/28頁(yè) |
| 文件大?。?/td> | 237K |
| 代理商： | MAX1631EAI |
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M
Multi-Output, Low-Noise Power-S upply
Controllers for Notebook Computers
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 15V, both PWMs on, SYNC = VL, VL load = 0mA, REF load = 0mA,
SKIP
= 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25°C.)
V+ = VL = 0V,
CSL3 = CSH3 = CSL5 = CSH5 = 5.5V
μA
0.01
10
Not tested
Not tested
Current-Sense Input Leakage Current
Not tested
Rising edge, hysteresis = 1% (Note 3)
V
DD
= 20V (Note 3)
V
DD
= 5V, off mode (Notes 3, 4)
V
DD
< 13V or SECFB < 2.44V
V
18
10
20
μs
1
Falling edge (MAX1631/MAX1634)
DL Pulse Width
V
DD
Shunt Threshold
V
DD
Shunt Sink Current
Falling edge (Note 3)
V
2.44
2.60
V
13
14
CONDITIONS
V
DD
Regulation Threshold
SECFB Regulation Threshold
μA
30
V
DD
Leakage Current
12V LINEAR REGULATOR
(Note 3)
mA
ns
ns
kHz
200
ns
200
SYNC Input High Pulse Width
SYNC Input Low Pulse Width
SYNC Rise/Fall Time
SYNC Input Frequency Range
13V < V
DD
< 18V, 0mA < I
LOAD
< 120mA
12OUT forced to 11V, V
DD
= 13V
V
11.65
12.1
150
12.50
12OUT Output Voltage
12OUT Current Limit
Quiescent V
DD
Current
INTERNAL REGULATOR AND REFERENCE
UNITS
MIN
TYP
MAX
PARAMETER
200
350
240
V
DD
= 18V, run mode, no 12OUT load
μA
50
100
mA
Rising edge of CSL5, hysteresis = 1%
No external load (Note 5)
Falling edge, hysteresis = 1%
V
V
4.2
2.45
4.5
2.5
4.7
2.55
V
3.5
3.6
3.7
VL Undervoltage Lockout
Fault Threshold
VL Switchover Threshold
REF Output Voltage
SHDN
= V+, RUN/ON3 = TIME/ON5 = 0V,
5.3V < V+ < 30V, 0mA < I
LOAD
< 50mA
V
4.7
5.1
VL Output Voltage
Falling edge
VL switched over to CSL5, 5V SMPS on
V
1.8
2.4
50
μA
10
REF Sink Current
REF Fault Lockout Voltage
V+ Operating Supply Current
V+ = 4V to 24V,
SHDN
= 0V
V+ = 4.2V to 5.5V, both SMPSs off,
includes current into
SHDN
μA
4
10
4
μA
50
200
V+ Standby Supply Current
in Dropout
V+ Shutdown Supply Current
V+ = 5.5V to 30V, both SMPSs off,
includes current into
SHDN
μA
30
60
μA
5
V+ Standby Supply Current
0μA < I
LOAD
< 50μA
0mA < I
LOAD
< 5mA
12.5
100.0
2.5
Both SMPSs enabled, FB3 = FB5 = 0V,
CSL3 = CSH3 = 3.5V,
CSL5 = CSH5 = 5.3V
mW
1.5
4
Quiescent Power Consumption
(Note 3)
MAX1631/
MAX1634
mV
REF Load Regulation
FLYBACK CONTROLLER
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