參數(shù)資料
型號(hào)： LP3923TLX
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBGA30
封裝： 3 X 2.50 MM, MICRO SMD-30
文件頁(yè)數(shù)： 18/32頁(yè)
文件大?。?/td> 1718K
代理商： LP3923TLX
over the temperature range –55°C to +125°C. The X5R has
a similar tolerance over the reduced temperature range of –
55°C to +85°C. Most large value ceramic capacitors (
≥ 2.2
F) are manufactured with Z5U or Y5V temperature charac-
teristics, which results in the capacitance dropping by more
than 50% as the temperature goes from +25°C to +85°C.
Therefore X7R is recommended over these other capacitor
types in applications where the temperature will change sig-
nificantly above or below +25°C.
No-Load Stability
The LDOs on the LP3923 will remain stable and in regulation
with no external load.
LDO Output Capacitors, Recommended Specification
Symbol
Parameter
Type
Typ
Min
Max
Units
C
O(LDO1)
Capacitance
X5R, X7R
1.0
0.7
2.2
F
C
O(LDO2)
Capacitance
X5R, X7R
1.0
0.7
2.2
F
C
O(LDO3)
Capacitance
X5R, X7R
1.0
0.7
2.2
F
C
O(LDO4)
Capacitance
X5R, X7R
1.0
0.7
2.2
F
C
O(LDO5)
Capacitance
X5R, X7R
1.0
0.7
2.2
F
C
O(LDO6)
Capacitance
X5R, X7R
1.0
0.7
2.2
F
C
O(LDO7)
Capacitance
X5R, X7R
1.0
0.7
2.2
F
C
O(LDO8)
Capacitance
X5R, X7R
1.0
0.7
2.2
F
Note: Note: The capacitor tolerance should be 30% or better over the full temperature range. X7R, or X5R capacitors should be used. These specifications are
given to ensure stability of the supply outputs and care must be taken to ensure that the capacitance remains within these values over all conditions within
the application. See Capacitor Characteristics section in Application Information.
25
www.national.com
LP3923
相關(guān)PDF資料
PDF描述
LP3923TLX-VB 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBGA30
LP3923TL-VB 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBGA30
LP3923TLX-VC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBGA30
LP3923TL-VI 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBGA30
LP3946ILD 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO14
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LP3923TLX/NOPB 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
LP3923TLX-VB 制造商:TI 制造商全稱:Texas Instruments 功能描述:Cellular Phone Power Management Unit
LP3923TLX-VB/NOPB 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
LP3923TLX-VC 制造商:TI 制造商全稱:Texas Instruments 功能描述:Cellular Phone Power Management Unit
LP3923TLX-VC/NOPB 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
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