參數(shù)資料
型號: TPS54383PWPR
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 7 A DUAL SWITCHING CONTROLLER, 375 kHz SWITCHING FREQ-MAX, PDSO14
封裝: GREEN, PLASTIC, HTSSOP-14
文件頁數(shù): 32/58頁
文件大?。?/td> 1773K
代理商: TPS54383PWPR
www.ti.com
Design Example Test Results
SW 3.3 V
SW 5 V
VIN = 12 V
t Time 40 ns/div
10
40
70
0
90
100
50
I
LOAD
- Load Current - A
h
-
E
ff
ic
ie
n
c
y
-
%
30
20
60
80
V
IN
= 13.2 V
V
IN
= 9.6 V
V
IN
= 12.0 V
V
OUT
= 5.0 V
V
IN
(V)
9.6
12.0
13.2
0
0.5
1.0
1.5
2.0
2.5
3.0
10
40
70
0
90
100
50
I
LOAD
- Load Current - A
h
-
E
ff
ic
ie
n
c
y
-
%
30
20
60
80
V
IN
= 9.6 V
V
OUT
= 3.3 V
V
IN
(V)
9.6
12.0
13.2
V
IN
= 12.0 V
V
IN
= 13.2 V
0
0.5
1.0
1.5
2.0
2.5
3.0
SLUS774B – AUGUST 2007 – REVISED OCTOBER 2007
The total power dissipation is PDISS=0.198+0.136+0.017+0.017+.066 = 434 mW.
The following results are from the TPS54383-001 EVM.
Figure 40. Switching Node Waveforms
Figure 41. 5.0-V Output Efficiency vs. Load Current
Figure 42. 3.3-V Output Efficiency vs. Load Current
38
Copyright 2007, Texas Instruments Incorporated
Product Folder Link(s): TPS54383 TPS54386
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