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參數(shù)資料
型號: TPS55383PWPRG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 7 A DUAL SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDSO16
封裝: PLASTIC, HTSSOP-26
文件頁數(shù): 29/45頁
文件大小: 1318K
代理商: TPS55383PWPRG4
(
)
(
)
(
)
(
) (
)
(
)
2
CON1
OUT
DS on
QSW RMS
DS on
P
R
I
R
I
D
0.085
3 A
0.540
0.562 W
=
=
W
=
(53)
(
)
(
)
(
)
(
) (
)
(
)
2
CON2
OUT
DS on
QSW RMS
DS on
P
R
I
R
I
D
0.085
3 A
0.370
0.465 W
=
=
W
=
(54)
(
)
(
)
(
)
2
Dj
OSS
SW
IN max
SW1
SW 2
V
(C
C
)
f
13.2
(200 pF
250 pF)
600 kHz
P
23.5 mW
2
+
+
=
=
(55)
(
)
(
)
(
)
REG
DD
BP
IN max
P
I
V
I
V
5 mA
13.2 V
66 mW
+
-
=
=
(56)
DESIGN EXAMPLE 1 TEST RESULTS
0.15
75
70
1.15
85
80
90
100
95
h
E
ff
ic
ie
n
c
y
%
0.65
1.65
2.65
2.15
3.15
14
8
12
V
IN
(V)
V
IN
= 14 V
V
IN
= 12 V
V
IN
= 8 V
I
LOAD
– Load Current – A
V
OUT
= 5 V
0.15
1.15
0.65
1.65
2.65
2.15
3.15
I
LOAD
– Load Current – A
75
70
85
80
90
100
95
h
E
ff
ic
ie
n
c
y
%
14
8
12
V
IN
(V)
V
IN
= 14 V
V
IN
= 12 V
V
IN
= 8 V
V
OUT
= 3.3 V
www.ti.com ......................................................................................................................................................................................... SLUS818 – SEPTEMBER 2008
Power Dissipation
The power dissipation in the TPS55386 is from FET conduction losses, switching losses and regulator losses.
Conduction losses are estimated by:
The switching losses are estimated by:
The regulator losses are estimated by:
Total power dissipation in the device is the sum of conduction and switching losses for both channels plus
regulator losses, and are estimated to total 1.2 W.
EFFICIENCY
vs
LOAD CURRENT
Figure 34.
Figure 35.
Copyright 2008, Texas Instruments Incorporated
35
Product Folder Link(s): TPS55383 TPS55386
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相關代理商/技術參數(shù)
參數(shù)描述
TPS55386EVM-363 功能描述:電源管理IC開發(fā)工具 TPS55386EVM-363 Eval Mod RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
TPS55386PWP 功能描述:直流/直流開關調節(jié)器 3A Dual Non-Synch Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS55386PWPG4 功能描述:直流/直流開關調節(jié)器 3A,Dual Non-Synch Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS55386PWPR 功能描述:直流/直流開關調節(jié)器 3A Dual Non-Synch Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS55386PWPRG4 功能描述:直流/直流開關調節(jié)器 3A,Dual Non-Synch Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
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