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參數(shù)資料
| 型號： | AN8018 |
| 廠商： | Panasonic Corporation |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 1.8-volt 2-channel step-up, step-down, or inverting DC-DC converter control IC |
| 中文描述： | 1.8伏雙通道升壓，降壓，或倒轉(zhuǎn)DC - DC轉(zhuǎn)換器控制IC |
| 文件頁數(shù)： | 20/26頁 |
| 文件大小： | 268K |
| 代理商： | AN8018 |
20
AN8018SA
Voltage Regulators
I
Application Notes (continued)
[9] About sequential operation (continued)
V
1
V
2
DT1
Out1
DT2
Out2
Out1 operation
Out2 operation
Operation when each channel single on/off
[10] Error amplifier phase-compensation setting method
The equivalent circuit of error amplifier is as shown in figure 11.
The transfer function is:
H
=
1 / {S (C
E1
+
C
O1
)}
R
E1
+
1 / {S (C
E1
+
C
O1
)}
The cut-off frequency is variable by changing the externally attached phase compensation capacitor C
O1
.
Adjust by inserting a resistor R
O1
between the FB1 terminal and C
O1
in series as shown in figure 12 when it is
required to have a gain on the high frequency side or desired to lead a phase.
The transfer function is:
=
1
SC
O1
· R
E1
+
1
(from C
E1
<<
C
O1
)
H
=
SC
O1
· R
O1
+
1
SC
O1
(R
O1
+
R
E1
)
+
1 (from C
E1
<<
C
O1
)
To PWM
1.19 V
C
O1
57dB
IN
1
C
5 pF
Figure 11. Error amplifier equivalent circuit
F
R
E1
1 M
To PWM
1.19 V
C
O1
R
O1
57dB
IN
1
C
5 pF
Figure 12. Error amplifier equivalent circuit (R
O1
inserted)
F
R
E1
1 M
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AN8018SA | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:1.8-volt 2-channel step-up, step-down, or inverting DC-DC converter control IC |
| AN8018SA-E1 | 功能描述:IC REG CTRLR BST INV PWM 16-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
| AN8018SA-E1V | 功能描述:IC REG CTRLR BST INV PWM 16-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:100% 電源電壓:8.2 V ~ 30 V 降壓:無 升壓:無 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:0°C ~ 70°C 封裝/外殼:8-DIP（0.300"，7.62mm） 包裝:管件 產(chǎn)品目錄頁面:1316 (CN2011-ZH PDF) |
| AN8019 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| AN-8019 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Reliable USB Modem Design Using the Combination of an Integrated Load Switch and a Buck Converter |
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