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參數資料
型號: TPS54519RTER
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩壓器
英文描述: 8 A SWITCHING REGULATOR, 2000 kHz SWITCHING FREQ-MAX, PQCC16
封裝: 3 X 3 MM, GREEN, PLASTIC, WQFN-16
文件頁數: 18/33頁
文件大小: 1269K
代理商: TPS54519RTER
100
1000
10000
100000
1000000
60
50
40
30
20
10
0
10
20
30
40
50
60
180
150
120
90
60
30
0
30
60
90
120
150
180
Frequency (Hz)
Gain
(dB)
Phase
(°)
Gain
Phase
G005
V
= 100 mV/div (ac coupled)
IN
Time = 500 ns/div
PH = 2 V/div
1
0.8
0.6
0.4
0.2
0
0.2
0.4
0.6
0.8
1
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Output Current (A)
Output
Voltage
Deviation
(%)
VIN = 3.3 V
VIN = 5 V
G003
0.4
0.3
0.2
0.1
0
0.1
0.2
0.3
0.4
3
3.5
4
4.5
5
5.5
6
Input Voltage (V)
Output
Voltage
Deviation
(%)
IOUT = 2.5 A
G004
I
= 5 A
OUT
48 °C
23 °C
Maximum Temperature = 58 °C
SLVSAT3
– SEPTEMBER 2011
INPUT RIPPLE, 5 A
CLOSED LOOP RESPONSE, VIN (3.3 V), 4 A
Figure 37.
Figure 38.
LOAD REGULATION
REGULATION
vs
LOAD CURRENT
INPUT VOLTAGE
Figure 39.
Figure 40.
Figure 41. Thermal Image
POWER DISSIPATION ESTIMATE
The following formulas show how to estimate the IC power dissipation under continuous conduction mode (CCM)
operation. The power dissipation of the IC (Ptot) includes conduction loss (Pcon), dead time loss (Pd), switching
loss (Psw), gate drive loss (Pgd) and supply current loss (Pq).
Pcon = Io2
× Rdson_temp
Pd =
sw × Iout × 0.7 × 40 × 10-9
Copyright
2011, Texas Instruments Incorporated
25
Product Folder Link(s): TPS54519
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