參數(shù)資料
型號(hào)： PTH08000WAZT
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源模塊
英文描述： 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
封裝： ROHS COMPLIANT, DIP-6
文件頁(yè)數(shù)： 2/20頁(yè)
文件大?。?/td> 661K
代理商： PTH08000WAZT
www.ti.com
Designing for Load Transients
SLTS248B – JUNE 2005 – REVISED FEBRUARY 2008
Table 3. Recommended Input/Output Capacitors (1)
CAPACITOR CHARACTERISTICS
QUANTITY
85
°C
CAPACITOR VENDOR/
EQUIVALENT
VENDOR
WORKING
MAXIMUM
PHYSICAL
COMPONENT
VALUE
SERIES
INPUT
OUTPUT
NUMBER
VOLTAGE
RIPPLE
SIZE
SERIES
(F)
RESISTANCE
BUS(2)
BUS
(V)
CURRENT
(mm)
(ESR) (
)
(IRMS) (mA)
Panasonic WA (SMT)
20
150
0.026
3700
10
× 10,2
1
≤ 2
EEFWA1D151P
FC (SMT)
25
220
0.150
670
10
× 10,2
1
EEVFC1E221P
Panasonic SL
6.3
47
0.018
2500
7,3
× 4,3
N/R(3)
≤ 3
EEFCD0J470R
SP-cap(SMT)
6.3
120
0.007
3500
7,3
× 4,3
N/R(3)
≤ 1
EEFSD0J121R
United Chemi-con
PXA (SMT)
16
150
0.026
3400
10
× 7,7
1
≤ 2
PXA16VC151MJ80TP
PS
25
100
0.020
4300
10
× 12,5
1
≤ 2
25PS100MJ12
LXZ
35
220
0.180
760
10
× 12,5
1
LXZ35VB221M10X12LL
MVY (SMT)
35
333
0.150
670
10
× 10
1
MVY35VC331MJ10TP
Nichicon UWG (SMT)
35
100
0.150
670
10
× 10
1
UWG1V101MNR1GS
F559(Tantalum)
10
100
0.055
2000
7,7
× 4,3
N/R(4)
≤ 3
F551A107MN
HD
25
220
0.072
760
8
× 11,5
1
UHD1E221MPR
Sanyo Os-con\ POS-Cap
10
68
0.025
2400
7,3
× 4,3
N/R(4)
≤ 2
10TPE68M
SVP (SMT)
20
150
0.020
4320
10
× 12,7
1
≤ 1
20SVP150M
SP
20
120
0.024
3110
8
× 10,5
1
≤ 2
20SP120M
AVX Tantalum TPS (SMD)
35
47
0.100
1430
7,3
× 4,3 × 4,1
2
≤ 4
TPSV476M035R0100
25
47
0.100
1150
7,3
× 4,3 × 4,1
2
≤ 4
TPSE476M025R0100 (VI<13V)
Kemet T520 (SMD)
10
100
0.025
> 2000
7,3
× 5,7 × 4
N/R(4)
≤ 1
T520V107M010ASE025
AO-CAP
6.3
100
0.018
> 2900
7,3
× 5,7 × 4
N/R(4)
≤ 1
A700V107M006AT
Vishay/Sprague
35
47
0.280
> 1000
7,3
× 6 × 4,1
2
≤ 5
595D476X0035R2T
594D/SVP(SMD)
20
100
0.025
3200
8
× 12
1
≤ 2
94SVP107X0020E12
94SS
20
150
0.030
3200
10
× 10,5
1
≤ 2
94SS157X0020FBP
Murata Ceramic X5R
16
47
0.002
> 1400
3225
1 (5)
≤ 3
GRM32ER61C476M
TDK ceramic X5R
6.3
47
0.002
> 1400
3225
N/R(4)
≤ 3
C3225X5R0J476MT (VO<5.5V)
Kemet Ceramic X5R
6.3
47
0.002
> 1400
3225
N/R(4)
≤ 3
C1210C476K9PAC (VO<5.5V)
TDK Ceramic X7R
25
10
0.002
> 1400
3225
1(5)
≤ 4
C3225X7R1E106K
Murata Ceramic X5R
25
10
0.002
> 1400
1(5)
≤ 4
GRM32DR61E106KA12
Kemet
16
10
0.002
> 1400
1(5)
≤ 4
C1210C106M4PAC
TDK Ceramic X7R
25
2.2
0.002
> 1400
3225
1
C3225X7R1E225KT/MT
Murata Ceramic X7R
25
2.2
0.002
> 1400
1
GRM32RR71J225KC01L
Kemet
25
2.2
0.002
> 1400
1
C1210C225K3RAC
(1)
Check with capacitor manufacturers for availability and lead-free status.
(2)
The voltage rating of the input capacitor must be selected for the desired operating input voltage range of the regulator. To operate the
regulator at a higher input voltage, select a capacitor with a higher voltage rating.
(3)
Not Recommended (N/R). The voltage rating of this capacitor does not meet the minimum operating limit in most applications.
(4)
Not Recommended (N/R). The voltage rating of this capacitor does not meet the minimum operating limit in most applications.
(5)
Ceramic capacitors can be used to complement electrolytic types at the input bus by reducing high-frequency ripple current.
The transient response of the dc/dc converter has been characterized using a load transient with a di/dt of 1A/s.
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.
10
Copyright 2005–2008, Texas Instruments Incorporated
Product Folder Link(s) :PTH08000W
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PTH08080W 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.25-A, WIDE-INPUT ADJUSTABLE SWITCHING REGULATOR
PTH08080WAD 功能描述:DC/DC轉(zhuǎn)換器 2.25A Wide Input/ Out Adj Mini Pwr Mdl 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:
PTH08080WAH 功能描述:DC/DC轉(zhuǎn)換器 2.25A Wide Input/ Out Adj Mini Pwr Mdl 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:
PTH08080WAS 功能描述:DC/DC轉(zhuǎn)換器 2.25A Wide Input/ Out Adj Mini Pwr Mdl 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:
PTH08080WAST 功能描述:DC/DC轉(zhuǎn)換器 2.25A Wide Input/ Out Adj Mini Pwr Mdl 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:
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