參數(shù)資料
型號： PTN78060AAST
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源模塊
英文描述： 1-OUTPUT 15 W DC-DC REG PWR SUPPLY MODULE
封裝： DIP-7
文件頁數(shù)： 3/19頁
文件大小： 589K
代理商： PTN78060AAST
www.ti.com
Designing for Load Transients
SLTS245B – APRIL 2005 – REVISED AUGUST 2006
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)
FC( Radial)
35
100
0.117
555
8 x 11,5
≥1
1
EEUFC1V01
FC (SMD)
35
100
0.015
670
10 x10,2
≥1
1
EEVFC1V101P
United Chemi-Con PXA (SMD)
16
180
0.016
4360
8 x 12
≤1
PXA16VC180MF60 (VI, |VO| <
≥1 (1)
14 V)
PS
25
100
0.020
4300
10 x 12,5
≥1 (1)
≤ 1
10PS100MJ12 (VI < 22V)
LXZ
50
100
0.22
485
8 x 12,5
≥1 (1)
1
LXZ50VB101M8X12LL
MVY(SMD)
50
100
0.300
500
10 x 10
≥1
1
MVY50VC101M10X10TP
Nichicon UWG (SMD)
50
100
0.300
500
10 x 10
≥1
1
UWG1H101MNR1GS
F550 (Tantalum)
10
100
0.055
2000
7,7 x 4,3
N/R (1)
≤ 3(2)
F551A107MN (|VO| ≤ 5 V)
HD
50
120
0.072
979
10 x12,5
≥1
1
UHD1H151MHR
Sanyo Os-Con SVP (SMD)
20
100
0.024
2500
8 x 12
≥1 (1)
≤ 1
20SVP100M (VI ≤ 16 V)
SP
16
100
0.032
2890
10 x 5
≥ 1 (1)
≤ 1
16SP100M (VI, |VO| ≤ 14 V)
20
100
0.085
1543
7,3 L x 4,3
N/R (3)
≤ 3
TPSV107M020R0085
W x 4,1 H
(|VO| ≤ 10 V)
AVX Tantalum TPS (SMD)
20
100
0.200
> 817
N/R (3)
≤ 3
TPSE107M020R0200
(|VO| ≤ 10 V)
Murata X5R Ceramic
16
47
0.002
>1000
3225
≥3 (1)
≤ 3
GRM32ER61C476M
(VI, |VO| ≤ 13.5 V)
Murata X5R Ceramic
6.3
47
0.002
>1000
3225
N/R (1)
≤ 3
GRM42-2X5R476M6.3
(|VO| ≤ 5.5 V)
TDK X7R Ceramic
25
2.2
0.002
>1000
3225
≥ 6 (4)
1
C3225X7R1E225KT/MT
(VI ≤ 20 V)
Murata X7R Ceramic
25
2.2
0.002
>1000
3225
≥ 6 (4)
1
GRM32RR71E225K
(VI ≤ 20 V)
Kemet X7R Ceramic
25
2.2
0.002
>1000
3225
≥ 6 (4)
1
C1210C225K3RAC
(VI ≤ 20 V)
AVX X7R Ceramic
25
2.2
0.002
>1000
3225
≥ 6 (4)
1
C12103C225KAT2A
(VI ≤ 20 V)
Murata X7R Ceramic
50
4.7
0.002
>1000
3225
≥ 3
1
GRM32ER71H475KA88L
TDK X7R Ceramic
50
2.2
0.002
>1000
3225
≥ 6
1
C3225X7R1H225KT
Murata Radial Through-hole
50
2.2
0.004
>1000
10 H x 10 W
≥ 6
1
RPER71H2R2KK6F03
x 4 D
(1)
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 the next higher voltage rating.
(2)
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.
(3)
Not recommended (N/R). The voltage rating does not meet the minimum operating limits in most applications.
(4)
The maximum rating of the ceramic capacitor limits the regulator's operating input voltage to 20 V. Select an alternative ceramic
component to operate at a higher input voltage.
11
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PTN78060AAS-T 制造商:TI 制造商全稱:Texas Instruments 功能描述:15-W, WIDE-INPUT ADJUSTABLE POSITIVE-TO-NEGATIVE VOLTAGE REGULATOR MODULE
PTN78060AAZ 功能描述:DC/DC轉(zhuǎn)換器 3A Wide-In Wide Neg Out Adj Module 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:
PTN78060AAZT 功能描述:DC/DC轉(zhuǎn)換器 3A Wide-In Wide Neg Out Adj Module 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:
PTN78060AAZ-T 制造商:TI 制造商全稱:Texas Instruments 功能描述:15-W, WIDE-INPUT ADJUSTABLE POSITIVE-TO-NEGATIVE VOLTAGE REGULATOR MODULE
PTN78060H 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-A, WIDE-INPUT ADJUSTABLE SWITCHING REGULATOR
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