參數(shù)資料
型號： PTN04050AAST
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 1 A SWITCHING REGULATOR, 310 kHz SWITCHING FREQ-MAX, PDMA5
封裝： DIP MODULE-5
文件頁數(shù)： 2/19頁
文件大?。?/td> 699K
代理商： PTN04050AAST
www.ti.com
Designing for Load Transients
SLTS250 – SEPTEMBER 2005
The transient response of the dc/dc converter has been characterized using a load transient with a di/dt of
1 A/s. The typical voltage deviation for this load transient is given in the data sheet specification table using the
required 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 of
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
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
(V)
CURRENT
(mm)
(ESR) (
)
(Irms) (mA)
Panasonic FC( Radial)
25
180
0.117
555
8 X 11
1
EEUFC1E181
Panasonic FC (SMD)
25
100
0.30
450
8 X 10,2
1
EEVFC1E101P
PXA16VC151MJ80TP (VO≤ 13
United Chemi-Con PXA (SMD)
16
150
0.026
3430
10 X 7,7
1
V)
PS
25
100
0.020
4320
10 X 12,5
1
25PS100MJ12
LXZ
25
100
0.250
290
6,3 X 11,5
1
LXZ25VB101M6X11LL
MVY(SMD)
35
100
0.300
450
8 X 10
1
MVY35VC101MH10TP
Nichicon UWG (SMD)
50
100
0.300
500
10 X 10
1
UWG1H101MNR1GS
F559 (Tantalum)
10
100
0.055
2000
7,7 X 4,3
1
1 (1)
F551A107MN (VO≤ 5 V)
HD
25
100
0.130
405
6,3 X 11
1
UHD1E101MER
Sanyo Os-Con SVP (SMD)
20
100
0.024
2500
8 X 12
1
20SVP100M
16SP100M
SP
16
100
0.032
2890
10 X 5
1
1 (1)
(VO≤ 14 V)
7,3L X 4,3W
TPSV107M020R0085
20
100
0.085
1543
1
≤1 (1)
X 4,1H
(VO≤ 10 V)
AVX Tantalum TPS (SMD)
TPSE107M020R0200
20
100
0.200
> 817
1
≤1 (1)
(VO≤ 10 V)
GRM32ER60J107M
Murata X5R Ceramic
6.3
100
0.002
>1000
3225
1
≤1 (1)
(VO≤ 5.5 V)
C3225X5R0J107MT
TDK X5R Ceramic
6.3
100
0.002
>1000
3225
1
≤1 (1)
(VO≤ 5.5 V)
GRM32ER61C476M
Murata X5R Ceramic
16
47
0.002
>1000
3225
2
≤2 (1)
(Vo≤ 13.5 V)
C1210C476K9PAC
Kemet X5R Ceramic
6.3
47
0.002
>1000
3225
2
≤2 (1)
(VO≤ 5.5 V)
C3225X5R0J476MT
TDK X5R Ceramic
6.3
47
0.002
>1000
3225
2
≤2 (1)
(VO≤ 5.5 V)
GRM422X5R476M6.3
Murata X5R Ceramic
6.3
47
0.002
>1000
3225
2
≤2 (1)
(VO≤ 5.5 V)
C3225X5R1E2265KT/MT
TDK X5R Ceramic
16
22
0.002
>1000
3225
5
≤5 (1)
(VO≤ 14 V)
Murata X7R Ceramic
25
22
0.002
>1000
3225
5
≤5
GRM32ER61C226K
C1210C226K3PAC
Kemet X7R Ceramic
16
22
0.002
>1000
3225
5
≤5 (1)
(VO≤ 14 V)
(1)
The maximum voltage rating of the capacitor must be selected for the desired set-point voltage (VO ). To operate at a higher output
voltage, select a capacitor with a higher voltage rating.
10
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參數(shù)描述
PTN04050AAZ 功能描述:DC/DC轉(zhuǎn)換器 6-W 3.3/5-V Input Wide Adjust Output 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:
PTN04050AAZT 功能描述:DC/DC轉(zhuǎn)換器 6-W 3.3/5-V Input Wide Adjust Output 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:
PTN04050C 制造商:TI 制造商全稱:Texas Instruments 功能描述:12 - W, 3.3 / 5 - V INPUT, WIDE OUTPUT ADJUSTABLE BOOST CONVERTER
PTN04050C_11 制造商:TI 制造商全稱:Texas Instruments 功能描述:12-W, 3.3/5-V INPUT, WIDE OUTPUT ADJUSTABLE BOOST CONVERTER
PTN04050CAD 功能描述:DC/DC轉(zhuǎn)換器 12W 3.3/5V In Wide Adj Out Boost Cnvtr 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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