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參數(shù)資料
| 型號： | PTH04000WAS1 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗輻射高效，5安培開關(guān)穩(wěn)壓器 |
| 文件頁數(shù)： | 10/20頁 |
| 文件大?。?/td> | 1347K |
| 代理商： | PTH04000WAS1 |
www.ti.com
Designing for Load Transients
PTH04000W
SLTS247A–JUNE 2005–REVISED JULY 2005
The transient response of the dc/dc converter has been characterized using a load transient with a di/dt of 1
A/μs. The typical voltage deviation for this load transient is given in the data sheet specification table using the
optional value of output capacitance. As the di/dt of a transient is increased, the response of a converter's
regulation circuit ultimately depends on its output capacitor decoupling network. This is an inherent limitation with
any dc/dc converter once the speed of the transient exceeds its bandwidth capability. If the target application
specifies a higher di/dt or lower voltage deviation, the requirement can only be met with additional output
capacitor decoupling. In these cases, special attention must be paid to the type, value, and ESR of the
capacitors selected.
If the transient performance requirements exceed those specified in the data sheet, the selection of output
capacitors becomes more important. Review the minimum ESR in the characteristic data sheet for details on the
capacitance maximum.
Table 3. Recommended Input/Output Capacitors
(1)
CAPACITOR CHARACTERISTICS
QUANTITY
85°C
CAPACITOR VENDOR/
COMPONENT
SERIES
EQUIVALENT
SERIES
RESISTANCE
(ESR)
VENDOR
NUMBER
MAXIMUM
RIPPLE
CURRENT
(I
rms
)
2800 mA
230 mA
PHYSICAL
SIZE
(mm)
WORKING
VOLTAGE
VALUE
μF
INPUT
BUS
(2)
OUTPUT
BUS
Panasonic WA (SMT)
FC (SMT)
10 V
25 V
120
47
0.035
0.400
0.018
0.009
0.031
0.040
0.250
0.440
0.400
0.055
0.550
0.025
0.074
0.045
0.100
0.060
0.060
0.028
0.100
0.240
0.070
8 × 6,9
8 × 6,2
1
1
≤
4
(2)
1
(2)
EEFWA1A121P
(3)
EEVFC1E470P
(3)
6.3 V
6.3 V
47
56
2500 mA
3000 mA
7,3 × 4,3
7,3 × 4,3
1
1
≤
2
≤
1
1
≤
3
1
1
EEFCD0J470R
EEFSL0J560R
Panasonic SL SP-cap(SMT)
United Chemi-con PXA (SMT)
FS
LXZ
MVZ (SMT)
10 V
10 V
16 V
16 V
47
100
100
100
2250 mA
2100 mA
290 mA
230 mA
6,3 × 5,7
6,3 × 9,8
6,3 × 11,5
6,3 × 5,7
1
1
1
1
PXA10VC470MF60TP
10FS100M
LXZ16VB101M6X11LL
MVZ16VC101MF60TP
Nichicon UWG (SMT)
F559(Tantalum)
PM
16 V
10 V
10 V
100
100
100
230 mA
2000 mA
210 mA
8 × 6,2
7,7 × 4,3
6 × 11
1
1
1
1
UWG1C101MCR1GS
F551A107MN
UPM1A101MEH
≤
3
1
Sanyo Os-con\ POS-Cap SVP
(SMT)
SP
10 V
6.3 V
10 V
68
47
56
2400 mA
1110 mA
1710 mA
7,3 × 4,3
5 × 6
6,3 × 5
1
1
1
≤
3
≤
3
≤
3
≤
3
≤
53
≤
3
≤
3
≤
3
≤
3
≤
3
10TPE68M
6SVP47M
10SP56M
10 V
10 V
47
47
1100 mA
> 412 mA
7,3 L × 4,3
W × 4,1 H
1
1
TPSD476M010R0100
TPSB476M010R0500
AVX Tantalum TPS (SMD)
Kemet T520 (SMD)
AO-CAP
10 V
6.3 V
68
47
>1200 mA
>1100 mA
7,3 L × 5,7
W × 4 H
1
1
T520V686M010ASE060
A700V476M006AT
Vishay/Sprague 594D/595D
(SMD)
10 V
10 V
68
68
>1000 mA
680 mA
7,3 L × 6 W
× 4,1 H
1
1
594D686X0010C2T
595D686X0010C2T
94SL
16 V
47
1550 mA
8 × 5
1
94SL476X0016EBP
7,5 L
×
4,0
W
×
8,0 H
1210 case
3225 mm
TDK Ceramic X5R (Leaded)
10 V
47
0.005
>1400 mA
≥
1
≤
2
FK22X5R1A476M
TDK Ceramic X5R
Murata Ceramic X5R
Kemet
6.3 V
6.3 V
6.3 V
22
22
22
0.002
0.002
0.002
0.002
0.002
0.002
>1400 mA
>1000 mA
>1000 mA
≥
2
(4)
≥
2
(4)
≥
2
(4)
≥
1
≥
1
≥
1
≤
3
≤
3
C3225X5R0J226KT/MTGR
M32ER61J223M
C1210C226K9PAC
TDK Ceramic X5R
Murata Ceramic X5R
Kemet
6.3 V
6.3 V
6.3 V
47
47
47
>1400 mA
>1000 mA
>1000 mA
1210 case
3225 mm
≤
2
≤
2
≤
2
C3225X5R0J476KT/MT
GRM32ER60J476M/6.3
C1210C476K9PAC
(1)
(2)
(3)
(4)
Check with capacitor manufacturers for availability and lead-free status.
A ceramic capacitor is required on the input. An electrolytic capacitor can be added to the output for improved transient response.
An optional through-hole capacitor available.
A total capacitance of 44 μF is an acceptable replacement for a single 47-μF capacitor.
10
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參數(shù)描述 |
|---|---|
| PTH04000WAST | 功能描述:DC/DC轉(zhuǎn)換器 3A 3.3/5V Input Adj Switching Regulator RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| PTH04000WAZ | 功能描述:DC/DC轉(zhuǎn)換器 3A 3.3/5V Input Adj Switching Regulator RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| PTH04000WAZ1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-A, 3.3/5-V INPUT, ADJUSTABLE SWITCHING REGULATOR |
| PTH04000WAZT | 功能描述:DC/DC轉(zhuǎn)換器 3A 3.3/5V Input Adj Switching Regulator RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| PTH04040 | 制造商:ARTESYN 制造商全稱:Artesyn Technologies 功能描述:DC-DC CONVERTERS POLA Non-isolated |
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