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    參數(shù)資料
    型號: L6919CD
    廠商: STMICROELECTRONICS
    元件分類: 穩(wěn)壓器
    英文描述: SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO28
    封裝: SO-28
    文件頁數(shù): 21/32頁
    文件大?。?/td> 558K
    代理商: L6919CD
    L6919C
    28/32
    Figure 24 shows the mosfets temperature versus output current in steady state condition without any air-flow
    or heat sink. It can be observed that the mosfets are under 100C in any conditions. Load regulation is also re-
    ported from 10A to 45A.
    Figure 24. Mosfet Temperature and Load Regulation
    DYNAMIC PERFORMANCES
    Figure 25 shows the system response to a load transient from 3A to 45A. The output voltage is contained in the
    ±50mV range. Additional output capacitors can help in reducing the initial voltage spike mainly due to the ESR.
    Figure 25. 3A to 45A Load Transient Response
    Figure 26 shows the system response to a VID transient from 1.200V to 0.800V and vice versa at minimum load (3A).
    Figure 26. Dynamic VID Response
    20
    30
    40
    50
    60
    70
    80
    90
    100
    0
    5
    10
    15
    20
    25
    30
    35
    40
    45
    Output Current [A]
    MOS
    Temperature
    [
    o
    C]
    High-side MOS Q2
    High-side MOS Q4
    Low -side MOS Q1
    Low -side MOS Q3
    1.170
    1.180
    1.190
    1.200
    1.210
    1.220
    1.230
    1.240
    1.250
    0
    5
    10
    15
    20
    25
    30
    35
    40
    45
    Output Current [A]
    Vout
    [V]
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