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參數(shù)資料
| 型號： | LTC1046 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 5V to -5V Monolithic CMOS Switched Voltage Converter(5V 到 -5V單片CMOS開關(guān)電容電壓轉(zhuǎn)換器) |
| 中文描述： | 5V至- 5V的單片CMOS開關(guān)電壓轉(zhuǎn)換器（5V的到- 5V的單片的CMOS開關(guān)電容電壓轉(zhuǎn)換器） |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 176K |
| 代理商： | LTC1046 |
LTC1046
8
U
S
A
O
PPLICATI
TYPICAL
Battery Splitter
A common need in many systems is to obtain positive and
negative supplies from a single battery or single power
supply system. Where current requirements are small, the
circuit shown in Figure 10 is a simple solution. It provides
symmetrical positive or negative output voltages, both
Figure 10. Battery Splitter
1
2
3
4
8
7
6
5
V
+
OSC
LV
V
OUT
BOOST
CAP
+
GND
CAP
–
LTC1046
C1
10
μ
F
V
B
9V
C2
10
μ
F
OUTPUT COMM0N
REQUIRED FOR V
B
< 6V
3V
≤
V
B
≤
12V
1046 F10
+V
B
/2
4.5V
–V
/2
–4.5V
+
+
equal to one half the input voltage. The output voltages are
both referenced to Pin 3 (output common). If the input
voltage between Pin 8 and Pin 5 is less than 6V, Pin 6
should also be connected to Pin 3, as shown by the
dashed line.
Paralleling for Lower Output Resistance
Additional flexibility of the LTC1046 is shown in Figures 11
and 12. Figure 11 shows two LTC1046s connected in
parallel to provide a lower effective output resistance. If,
however, the output resistance is dominated by 1/fC1,
increasing the capacitor size (C1) or increasing the fre-
quency will be of more benefit than the paralleling
circuit shown.
Figure 12 makes use of “stacking” two LTC1046s to
provide even higher voltages. In Figure 12, a negative
voltage doubler or tripler can be achieved depending upon
how Pin 8 of the second LTC1046 is connected, as shown
schematically by the switch.
1
2
3
4
8
7
6
5
V
+
OSC
LV
V
OUT
BOOST
CAP
+
GND
CAP
–
LTC1046
C1
10
μ
F
C1
10
μ
F
+
1
2
3
4
8
7
6
5
V
+
OSC
LV
V
OUT
BOOST
CAP
+
GND
CAP
–
LTC1046
1/4 CD4077
+
C2
20
μ
F
1046 F11
V
OUT
= –(V
+
)
OPTIONAL SYNCHRONIZATION
CIRCUIT TO MINIMIZE RIPPLE
V
+
+
Figure 11. Paralleling for 100mA Load Current
1
2
3
4
8
7
6
5
V
+
OSC
LV
V
OUT
BOOST
CAP
+
GND
CAP
–
LTC1046
V
+
10
μ
F
C1
10
μ
F
–(V
+
)
10
μ
F
+
+
1
2
3
4
8
7
6
5
V
+
OSC
LV
V
OUT
BOOST
CAP
+
GND
CAP
–
LTC1046
FOR V
OUT
= –2V
+
FOR V
OUT
= –3V
+
+
10
μ
F
1046 F12
V
OUT
+
Figure 12. Stacking for Higher Voltage
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1046C | 制造商:LINER 制造商全稱:Linear Technology 功能描述:“Inductorless” 5V to + 5V Converter |
| LTC1046CN8 | 功能描述:IC REG SWITCHED CAP DIV INV 8DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式，混合 頻率 - 開關(guān):600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:8-SOIC |
| LTC1046CN8#PBF | 功能描述:IC REG SWITCHED CAP DIV INV 8DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關(guān):2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
| LTC1046CS8 | 功能描述:IC REG SWITCHD CAP DIV INV 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
| LTC1046CS8#PBF | 功能描述:IC REG SWITCHD CAP DIV INV 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關(guān):2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
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