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參數(shù)資料
| 型號： | LP2967IBP-2828 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Dual Micropower 150 mA Low-Dropout Regulator in micro SMD Package |
| 中文描述： | DUAL OUTPUT, FIXED POSITIVE LDO REGULATOR, PBGA8 |
| 封裝： | MICRO, BUMP, SMD-8 |
| 文件頁數(shù)： | 13/17頁 |
| 文件大?。?/td> | 612K |
| 代理商： | LP2967IBP-2828 |
Application Hints
EXTERNAL CAPACITORS
The LP2967 low dropout regulator requires two external
capacitors, C
IN
and C
to assure the device’s output
stability. C
BYPASS
may be used to reduce output noise. The
capacitors must be correctly selected with respect to capaci-
tance values for all three capacitors and ESR value for
C
OUT
.
Input Capacitor
An input capacitor with a minimum capacitance value of 1μF
is required between the LP2967 input and ground (the
amount of capacitance may be increased without limit). This
capacitor must be located a distance of not more than 0.5
inches from the input pin and returned to a clean analog
ground. Any good quality ceramic or tantalum may be used
for this capacitor.
Output Capacitor
The output capacitor must meet the requirement for mini-
mum capacitance value of 2.2 μF and also have an appro-
priate ESR (equivalent series resistance) value. The LP2967
is actually designed to work with ceramic or tantalum output
capacitors, utilizing circuitry which allows the regulator to be
stable with an output capacitor whose ESR is as low as 4
m
. It may also be possible to use a film capacitor at the
output, but this type is not as attractive for reasons of size
and cost.
Important:
The output capacitor must maintain its ESR in
the stable region over the full operating temperature range of
the application to assure stability. The minimum required
amount of output capacitance is 2.2 μF. Output capacitor
size can be increased without limit. It is important to remem-
ber that capacitor tolerance and variation with temperature
must be taken into consideration when selecting an output
capacitor so that the minimum required amount of output
capacitance is provided over the full operating temperature
range.
LP2967-3.3V Region of Stability with 10 μF C
OUT
10114208
LP2967-3.3V Region of Stability with 4.7 μF C
OUT
10114207
LP2967-2.5V Region Of Stability with 10 μF C
OUT
10114209
LP2967-2.5V Region Of Stability with 4.7 μF C
OUT
10114210
L
www.national.com
13
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP2967IBP-2833/NOPB | 功能描述:IC REG LDO 2.8V/3.3V .15A 8USMD RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標準包裝:1 系列:- 穩(wěn)壓器拓撲結(jié)構(gòu):正，固定式 輸出電壓:4V 輸入電壓:最高 16V 電壓 - 壓降（標準）:0.28V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 電流 - 限制（最?。?- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:5-VFBGA 供應商設備封裝:5-uSMD 包裝:Digi-Reel® 其它名稱:LP2985AIBP-4.0DKR |
| LP2967IBPX-1833 | 功能描述:IC REG LDO 1.8V/3.3V .15A 8USMD RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標準包裝:1 系列:- 穩(wěn)壓器拓撲結(jié)構(gòu):正，固定式 輸出電壓:4V 輸入電壓:最高 16V 電壓 - 壓降（標準）:0.28V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 電流 - 限制（最小）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:5-VFBGA 供應商設備封裝:5-uSMD 包裝:Digi-Reel® 其它名稱:LP2985AIBP-4.0DKR |
| LP2967IMM-2528 | 制造商:Rochester Electronics LLC 功能描述:DUAL 150MA LOW NOISE LDO - Bulk 制造商:Texas Instruments 功能描述:REG LDO DUAL 150MA SMD SOIC8 |
| LP2967IMM-2528/NOPB | 功能描述:IC REG LDO 2.5V/2.8V .15A 8MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標準包裝:1 系列:- 穩(wěn)壓器拓撲結(jié)構(gòu):正，固定式 輸出電壓:4V 輸入電壓:最高 16V 電壓 - 壓降（標準）:0.28V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 電流 - 限制（最小）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:5-VFBGA 供應商設備封裝:5-uSMD 包裝:Digi-Reel® 其它名稱:LP2985AIBP-4.0DKR |
| LP2967IMM-2533 | 制造商:Rochester Electronics LLC 功能描述:DUAL 150MA LOW NOISE LDO - Bulk 制造商:Texas Instruments 功能描述:REG LDO DUAL 150MA SMD SOIC8 |
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