參數(shù)資料
型號(hào)： PTH03010YAST
廠(chǎng)商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 電源模塊
英文描述： 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
封裝： DIP-20
文件頁(yè)數(shù)： 16/18頁(yè)
文件大?。?/td> 773K
代理商： PTH03010YAST
www.ti.com
APPLICATION INFORMATION
Typical DDR Application Diagram
Inhibit
+
DDRII/
QDRII
PTH05010W
VDDQ I/O Memory
Inhibit
+
PTH05050Y
DDR Termination
+
2 ×
330 F
2 ×
22 F
2 ×
330 F
2 ×
22 F
+Sense
Margin ±
Auto-Track
VI
+VADJ
1 k
VI= 5V
220 F
47 F
470 F
47 F
5.51 k
VO
+VREF
VI
UDG05096
VTT
VTT = 0.9 V
VDDQ = 1.8 V
CAPACITOR RECOMMENDATIONS FOR THE PTH03010Y AND PTH05010Y DDR POWER
Input Capacitor
Output Capacitors
PTH03010Y
PTH05010Y
PTH12010Y
SLTS223A–MARCH 2004–REVISED OCTOBER 2005
MODULES
(3.3-V/5-V OPTION)
The recommended input capacitor(s) is determined by the 470 F minimum capacitance and 500 mArms
minimum ripple current rating.
Ripple current, less than 160 m equivalent series resistance (ESR), and temperature are the major
considerations when selecting input capacitors. Unlike polymer tantalum, regular tantalum capacitors have a
recommended minimum voltage rating of 2 × (maximum dc voltage + ac ripple). This is standard practice to
ensure reliability.
For improved ripple reduction on the input bus, ceramic capacitors may used to complement electrolytic types to
achieve the minimum required capacitance.
For applications with load transients (sudden changes in load current), regulator response benefits from external
output capacitance. The recommended output capacitance of 470 F will allow the modue to meet its transieint
response specification. (See Electrical Specifications table). For most applications, a high quality computer-grade
aluminum electrolytic capacitor is adequate. These capacitors provide decoupling over the frequency range,
2 kHz to 150 kHz, and are suitable for ambient temperatures above 0°C. Below 0°C, tantalum, ceramic or
Os-Con type capacitors are recommended. When using one or more nonceramic capacitors, the calculated
equivalent ESR should be no lower than 4 m (7 m using the manufacturer’s maximum ESR for a single
capacitor).
A list of preferred low-ESR type capacitors are identified in Table 1. In addition to electrolytic capacitance, adding
a 10-F to 22-F X5R/X7R ceramic capacitor to the output reduces the output ripple voltage and improve the
regulator’s transient response. The measurement of both the output ripple and transient response is also best
achieved across a 10-F ceramic capacitor.
7
相關(guān)PDF資料
PDF描述
PTH12010YAH 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH12010YAZT 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH12010YAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH05010YAZ 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH05010YAH 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PTH03010YAZ 功能描述:DC/DC轉(zhuǎn)換器 15A 3.3V-In Bus Term Pwr Mdl for DDR/QDR 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(chēng)）: 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:
PTH03010YAZT 功能描述:DC/DC轉(zhuǎn)換器 15A 3.3V-In Bus Term Pwr Mdl for DDR/QDR 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(chēng)）: 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:
PTH03020 制造商:ARTESYN 制造商全稱(chēng):Artesyn Technologies 功能描述:DC-DC CONVERTERS POLA Non-isolated
PTH03020W 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:22 A. 3.3-V Input Wide-Output Adjust Plug-in Power Module
PTH03020WAD 功能描述:DC/DC轉(zhuǎn)換器 2.95-3.65Vin 22A 1.495" x0.870"x0.354 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(chēng)）: 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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