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參數(shù)資料
| 型號： | MC33765DTB |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Very Low Dropout/Ultra Low Noise 5 Outputs Voltage Regulator |
| 中文描述： | FIVE OUTPUT, FIXED POSITIVE LDO REGULATOR, PDSO16 |
| 封裝： | LEAD FREE, TSSOP-16 |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 287K |
| 代理商： | MC33765DTB |
MC33765
http://onsemi.com
11
DESIGN HINTS
Reducing the cross–talk between the MC33765 outputs
One of the origin of the DC shift finds its seat in the layout
surrounding the integrated circuit. Particular care has to be
taken when routing the output ground paths. Star grounding
or a ground plane are the absolute conditions to reduce the
noise or shift associated to common impedance situations,
as depicted by Figure 17.
Figure 17. Star Cabling Avoids Coupling by Common Ground Impedance
WRONG
CORRECT
1
2
3
4
5
6
7
8
16
15
14
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12
11
10
9
M
1
2
3
4
5
6
7
8
16
14
13
12
11
10
9
M
Load1
Load2
Load1
Load2
Star cabling
common impedance shift
Rlayout
The first left cabling will generate a voltage shift which will
superimpose on the output voltages, thus creating an
undesirable offset. By routing the return grounds to a single
low impedance point, you naturally shield the circuit against
common impedance disturbances. Figure 18 portraits the text
fixture implemented to test the response of the MC33765.
Figure 18. DC Shift Text Fixture
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16
15
14
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11
10
9
2
3
4
5
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8
M
1
μ
F
470nF
10k
Output 3
Output 4
100nF
10k
10k
10nF
18
56
VCC
+
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC33765DTBG | 功能描述:低壓差穩(wěn)壓器 - LDO 5 Output Ultra LDO Low Noise Regulator 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 |
| MC33765DTBR2 | 功能描述:低壓差穩(wěn)壓器 - LDO 5 Output Ultra LDO 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 |
| MC33765DTBR2G | 功能描述:低壓差穩(wěn)壓器 - LDO 5 Output Ultra LDO Low Noise Regulator 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 |
| MC33780EG | 功能描述:IC DBUS MASTER DUAL DIFF 16-SOIC RoHS:是 類別:集成電路 (IC) >> 專用 IC 系列:* 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA（27x27） 包裝:散裝 |
| MC33780EGR2 | 功能描述:IC DBUS MASTER DUAL DIFF 16-SOIC RoHS:是 類別:集成電路 (IC) >> 專用 IC 系列:* 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA（27x27） 包裝:散裝 |
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