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L6983 数据表(PDF) 10 Page - STMicroelectronics

部件名 L6983
功能描述  38 V, 3 A synchronous step-down converter with 17 μA quiescent current
PDF  63 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L6983 数据表(HTML) 10 Page - STMicroelectronics

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Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
TSHDWN (5)
Thermal shutdown
temperature
165
°C
THYS (5)
Thermal shutdown
hysteresis
30
°C
1. Parameter tested in the static condition during testing phase. The parameter value may change over a dynamic application
condition.
2. LCM version.
3. LNM version.
4. Specifications in the - 40 to 125 °C temperature range are assured by characterization and statistical correlation.
5. Not tested in production.
5.1
Frequency selection table
Specification referred to - 40 ≤ TJ ≤ 125 °C and VIN = 24 V, assured by testing at TJ = 25 °C, design,
characterization and statistical correlation.
Table 7. FSW selection
Symbol
Option
RVCC (kΩ)
RGND (kΩ)
Min.
Typ.
Max.
Unit
FSW
Dithering (5 % FSW typ.)
1.8
N.C.
200
kHz
0
N.C.
400
kHz
3.3
N.C.
500
kHz
5.6
N.C.
700
kHz
10
N.C.
1000
kHz
18
N.C.
1500
kHz
33
N.C.
2000
kHz
56
N.C.
2300
kHz
No dithering
N.C.
1.8
200
kHz
N.C.
0
360
400
440
kHz
N.C.
3.3
500
kHz
N.C.
5.6
630
700
770
kHz
N.C.
10
900
1000
1100
kHz
N.C.
18
1500
kHz
N.C.
33
2000
kHz
N.C.
56
2000
2300
2600
kHz
L6983
Frequency selection table
DS13116 - Rev 1
page 10/63



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