參數(shù)資料
型號(hào)： PT5408A
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 穩(wěn)壓器
英文描述： 6 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, MSMA5
封裝： ROHS COMPLIANT, METAL, HORIZONTAL MOUNT PACKAGE-5
文件頁(yè)數(shù)： 14/16頁(yè)
文件大?。?/td> 304K
代理商： PT5408A
Application Notes
For technical support and further information, visit http://power.ti.com
/
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PT5400 Series
Capacitor Recommendations for the PT5400
SWIFT Series of Power Modules
Input Capacitors
The recommended input capacitance is determined by
100 F minimum capacitance, 300 mA (rms) minimum
ripple current rating, and less than 300 m
equivalent
series resistance (ESR). The ripple current rating, ESR,
and operating temperature are the major considerations
when selecting the input capacitor.
It is recommended that tantalum capacitors have a mini-
mum voltage rating of at least twice the working voltage,
including the ac ripple. This is necessary to insure reli-
ability with 3.3-V input voltage bus applications.
Output Capacitors (optional)
The ESR of the output bulk (non-ceramic) capacitance
must be between 10 m
≤ESR ≤200 m. Electrolytic
capacitors have poor ripple performance at frequen-
cies greater than 400 kHz but excellent low frequency
transient response. Above the ripple frequency, ceramic
decoupling capacitors are recommended to improve the
transient response and reduce any high frequency noise
components apparent during higher current excursions. A
maximum of 100 F ceramic capacitance may be added to
the output bus.
Tantalum/ Ceramic Capacitors
Tantalum capacitors are acceptable on the output bus.
Tantalum, Os-con, or ceramic capacitor types are rec-
ommended for applications where ambient temperatures
fall below 0 °C. Ceramic capacitors may be used instead
of electrolytic types on both the input and output bus.
The input bus must have at least the minimum amount of
capacitance. For the output bus the total amount of
ceramic capacitance should be limited to 100 F.
Capacitor Tables
Table 2-1 identifies vendors with acceptable ESR and
maximum allowable ripple current (rms) ratings. Capaci-
tors recommended for the output are identified under
the Output Bus column with the required quantity.
This is not an extensive capacitor list. Capacitors from other
vendors are available with comparable specifications. Those
listed are for guidance. The RMS ripple current rating and
ESR (at 100 kHz) are critical parameters necessary to insure
both optimum regulator performance and long capacitor life.
Table 2-1; Recommended Input/Output Capacitors
相關(guān)PDF資料
PDF描述
PT5405C 5.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, MSMA5
PT5403N 5.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, MSMA5
PT5815N 19 A SWITCHING REGULATOR, 350 kHz SWITCHING FREQ-MAX, SMA18
PT5812C 19 A SWITCHING REGULATOR, 350 kHz SWITCHING FREQ-MAX, SMA18
PT5814C 20 A SWITCHING REGULATOR, 350 kHz SWITCHING FREQ-MAX, MSSO18
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PT5408C 功能描述:DC/DC轉(zhuǎn)換器 2.5V 6A 3.3V Input Adj SWIFT 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:
PT5408N 功能描述:DC/DC轉(zhuǎn)換器 2.5V 6A 3.3V Input Adj SWIFT 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:
PT5410 制造商:Pulse Electronics Corporation 功能描述:- Bulk
PT5411 制造商:Pulse 功能描述:- Bulk
PT541-1 功能描述:固定電感器 MAGNETICS - ADSL RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類(lèi)型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm
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