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參數(shù)資料
| 型號： | PC33701DWBR2 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, PDSO32 |
| 封裝： | PLASTIC, SOIC-32 |
| 文件頁數(shù)： | 2/24頁 |
| 文件大?。?/td> | 647K |
| 代理商： | PC33701DWBR2 |
33701
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
10
DYNAMIC ELECTRICAL CHARACTERISTICS
Characteristics noted under conditions -40°C ≤ TJ ≤ 125°C unless otherwise noted. Input voltages VIN1 = VIN2 = 3.3 V using the typical
application circuit (see Figure 20) unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
BUCK CONVERTER
Duty Cycle Range (Normal Operation)
D
0
–
90
%
Switching Node SW Rise Time (Note 9)
ILOAD = 1.5 A
tRISE
–
TBD
–
ns
Switching Node SW Fall Time (Note 9)
ILOAD = 1.5 A
tFALL
–
TBD
–
ns
Maximum Deadtime (Note 9)
tD
–TBD
–
ns
Buck Control Loop Propagation Delay (Note 9)
VINV < 0.8 V to VSW > 90% of High Level or VINV > 0.8 V to VSW < 10% of
Low Level
tPD
–50–
ns
Soft Start Duration (Power Sequencing Disabled, EN1 = 1, EN2 = 1)
tSS
200
350
800
s
Fault Condition Timeout
tFAULT
–10–
ms
Retry Timer Cycle
tRet
–
100
–
ms
OSCILLATOR
Oscillator Default Frequency (Switching Frequency), FREQ Pin Open
fOSC
270
300
330
kHz
Oscillator Frequency Range
fOSC
200
400
kHz
Oscillator Frequency Accuracy
RF = 100 k
fOSC
360
400
440
kHz
Oscillator Frequency Accuracy
RF = 200 k
fOSC
180
200
220
kHz
Oscillator Output Signal Duty Cycle (Square Wave, 180° Out-of-Phase with the
Internal Suitable Oscillator)
DOSC
–50–
%
Synchronization Pulse Minimum Duration
tSYNC
300
–
ns
BOOST REGULATOR
Boost Regulator FET Maximum ON Time
tON
–24–
s
Boost Regulator Control Loop Propagation Delay (Note 9)
tBST_PD
–50–
ns
IBST = 20 mA
tB_RISE
–15
40
ns
IBST = 20 mA
tB_FALL
–15
40
ns
Notes
9.
Design Information only. Not production tested.
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