參數(shù)資料
型號(hào)： NCV8509PDW26R2
廠商： ON SEMICONDUCTOR
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： Sequenced Linear Dual-Voltage Regulator
中文描述： DUAL OUTPUT, FIXED POSITIVE REGULATOR, PDSO16
封裝： SOIC-16
文件頁數(shù)： 11/16頁
文件大?。?/td> 123K
代理商： NCV8509PDW26R2
NCV8509 Series
http://onsemi.com
11
Figure 30. Power Shunt
R
EX
V
IN1
V
IN2
V
OUT2
Voltage
Regulator
Figure 31. Power On Chip
0
0
V
IN
0.2
0.4
0.6
0.8
1.0
1.2
1.8
W
5
10
15
20
25
1.4
1.6
R
EX
> 138
R
EX
= 138
R
EX
< 138
I
OUT2
= 100 mA
Figure 32.
135
V
IN1
18 V
V
IN2
4.5 V
R
LOAD
V
OUT2
2.5 V
100 mA
135
V
IN1
6.0 V
V
IN2
3.1 V
R
LOAD
V
OUT2
2.5 V
21.5 mA
135
V
IN1
6.0 V
V
IN2
4.5 V
R
LOAD
V
OUT2
2.5 V
100 mA
78.5 mA
+
600 mV
Figure 33.
Figure 34.
21.5 mA
100 mA
21.5 mA
Why Use a Power Shunt
The power shunt circuitry helps manage and optimize
power dissipation on the integrated circuit.
Figure 32 shows a 100 mA load. A 135
resistor
dissipates 1.35 W as shown.
Without the power shunt, the 135
resistor would run
into head room issues at 6.0 V and would only be able to
drive 21.5 mA as shown in Figure 33 before causing the
2.5 V output to collapse.
Figure 34 shows the power shunt circuitry adding the
current back in at low voltage operation. So the power is
moved off chip at high voltage where it is needed most.
To further clarify, Figure 35 shows the maximum allowed
resistor value (29
) without the power shunt for 6.0 V
operation.
Figure 36 shows the scenario at high voltage. Only 290 mW
of power is dissipated off chip compared to Figure 32 with
1.35 W.
Figure 35.
29
V
IN1
18 V
V
IN2
15.1 V
R
LOAD
V
OUT2
2.5 V
100 mA
Figure 36.
29
V
IN1
6.0 V
V
IN2
3.1 V
R
LOAD
V
OUT2
2.5 V
100 mA
+
600 mV
100 mA
100 mA
相關(guān)PDF資料
PDF描述
NCV8512 5.0 V Micropower 150 mA LDO Linear Regulator with DELAY, Adjustable RESET, and Monitor FLAG
NCV8512PW50G 5.0 V Micropower 150 mA LDO Linear Regulator with DELAY, Adjustable RESET, and Monitor FLAG
NCV8512PW50R2G 5.0 V Micropower 150 mA LDO Linear Regulator with DELAY, Adjustable RESET, and Monitor FLAG
NCV8664 Ultra&#8722;Low Iq Low Dropout Linear Regulator
NCV8664DT50RKG Ultra&#8722;Low Iq Low Dropout Linear Regulator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NCV8509PDW26R2G 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) 2.6V 100mA Sequenced Dual RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L
NCV8512 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:5.0 V Micropower 150 mA LDO Linear Regulator with DELAY, Adjustable RESET, and Monitor FLAG
NCV8512PW50G 功能描述:低壓差穩(wěn)壓器 - LDO 5V MICROPOWER 150mA 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(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
NCV8512PW50R2G 功能描述:低壓差穩(wěn)壓器 - LDO 5V MICROPOWER 150mA 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(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
NCV8518 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:AC-DC Offline Switching Controllers/Regulators
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*