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參數(shù)資料
| 型號(hào)： | MIC3775 |
| 廠商： | Micrel Semiconductor,Inc. |
| 元件分類： | FPGA |
| 英文描述： | FPGA 2000000 SYSTEM GATE 1.8 VOLT - NOT RECOMMENDED for NEW DESIGN |
| 中文描述： | 七五〇毫安開普低電壓低壓差穩(wěn)壓器 |
| 文件頁數(shù)： | 12/14頁 |
| 文件大小： | 139K |
| 代理商： | MIC3775 |
MIC3775
Micrel
MIC3775
12
March 2003
T = T
J(max)
–
T
A(max)
T
J(max)
= 125
°
C
T
A(max)
= maximum ambient operating temperature
For example, the maximum ambient temperature is 50
°
C, the
T is determined as follows:
T = 125
°
C
–
50
°
C
T = 75
°
C
Using Figure 4, the minimum amount of required copper can
be determined based on the required power dissipation.
Power dissipation in a linear regulator is calculated as fol-
lows:
P
D
= (V
IN
–
V
OUT
) I
OUT
+ V
IN
×
I
GND
If we use a 2.5V output device and a 3.3V input at an output
current of 750mA, then our power dissipation is as follows:
P
D
= (3.3V
–
2.5V)
×
750mA + 3.3V
×
7.5mA
P
D
= 600mW + 25mW
P
D
= 625mW
From Figure 4, the minimum amount of copper required to
operate this application at a
T of 75
°
C is 160mm
2
.
Quick Method
Determine the power dissipation requirements for the design
along with the maximum ambient temperature at which the
device will be operated. Refer to Figure 5, which shows safe
operating curves for three different ambient temperatures:
25
°
C, 50
°
C and 85
°
C. From these curves, the minimum
amount of copper can be determined by knowing the maxi-
mum power dissipation required. If the maximum ambient
temperature is 50
°
C and the power dissipation is as above,
625mW, the curve in Figure 5 shows that the required area of
copper is 160mm
2
.
The
θ
JA
of this package is ideally 80
°
C/W, but it will vary
depending upon the availability of copper ground plane to
which it is attached.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC3775_06 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:750mA μCap Low-Voltage Low-Dropout Regulator |
| MIC3775-1.5BMM | 功能描述:IC REG LDO 1.5V .75A 8-MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:3.8V 輸入電壓:最高 16V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.3V @ 80mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:80mA 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:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:帶卷 (TR) 其它名稱:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND |
| MIC3775-1.5BMM TR | 功能描述:IC REG LDO 1.5V .75A 8-MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:3.8V 輸入電壓:最高 16V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.3V @ 80mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:80mA 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:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:帶卷 (TR) 其它名稱:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND |
| MIC3775-1.5BMMTS | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MIC3775-1.5YMM | 功能描述:低壓差穩(wěn)壓器 - LDO 750mA Low Voltage uCap LDO in Power MSOP-8 Pkg(Lead Free) RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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