參數(shù)資料
型號(hào): 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): 24/32頁
文件大?。?/td> 558K
代理商: L6919CD
L6919C
30/32
Figure 28 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 105°C in any conditions. Load regulation is also re-
ported from 10A to 55A.
Figure 28. Mosfet Temperature and Load Regulation.
Figure 29 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 29. 3A to 45A Load Transient Response
Figure 30 shows the system response to a VID transient from 1.200V to 0.800V and vice versa at minimum load (3A).
Figure 30. Dynamic VID Response
25
35
45
55
65
75
85
95
105
115
0
5
10 15 20 25 30 35 40 45 50 55 60
Output Current [A]
MOS
Temperature
[
o
C]
High-s ide MOS Q2
High-s ide MOS Q4
Low-s ide MOS Q1
Low-s ide MOS Q3
1.155
1.165
1.175
1.185
1.195
1.205
1.215
1.225
1.235
0
5 10 15 20 25 30 35 40 45 50 55 60
Output Curre nt [A]
Vout
[V]
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