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參數(shù)資料
| 型號(hào)： | LTC1044A |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 12V CMOS Voltage Converter |
| 中文描述： | 12V的CMOS電壓轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 8/12頁(yè) |
| 文件大?。?/td> | 275K |
| 代理商： | LTC1044A |
8
LTC1044A
Battery Splitter
A common need in many systems is to obtain (+) and
(–) supplies from a single battery or single power supply
system. Where current requirements are small, the circuit
shown in Figure 9 is a simple solution. It provides sym-
metrical
±
output voltages, both equal to one half 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 LTC1044A is shown in Figures
10 and 11.
Figure 10 shows two LTC1044As connected in parallel to
provide a lower effective output resistance. If, however,
the output resistance is dominated by 1/(f
×
C1), increas-
ing the capacitor size (C1) or increasing the frequency will
be of more benefit than the paralleling circuit shown.
Figure 11 makes use of “stacking” two LTC1044As to
provide even higher voltages. A negative voltage doubler
or tripler can be achieved, depending upon how pin 8 of the
second LTC1044A is connected, as shown schematically
by the switch. The available output current will be dictated/
decreased by the product of the individual power conver-
sion efficiencies and the voltage step-up ratio.
1
2
3
4
8
7
6
5
LTC1044A
+V
B
/2 (6V)
+V
B
/2 (–6V)
OUTPUT
COMMON
+
C1
10
μ
F
V
12V
+
C2
10
μ
F
REQUIRED FOR V
B
< 6V
LTC1044A F09
+
Figure 9. Battery Splitter
1
2
3
4
8
7
6
5
LTC1044A
+
C1
10
μ
F
1
2
3
4
8
7
6
5
LTC1044A
1/4 CD4077
LTC1044A F10
V
+
+
C1
10
μ
F
C2
20
μ
F
V
OUT
= –(V
+
)
+
*
*THE EXCLUSIVE NOR GATE SYNCHRONIZES BOTH LTC1044As TO MINIMIZE RIPPLE
Figure 10. Paralleling for Lower Output Resistance
Figure 11. Stacking for Higher Voltage
1
2
3
4
8
7
6
5
LTC1044A
+
+
10
μ
F
V
+
–(V
+
)
10
μ
F
LTC1044A F11
10
μ
F
1
2
3
4
8
7
6
5
LTC1044A
+
10
μ
F
FOR V
OUT
= –3V
+
V
OUT
FOR V
OUT
= –2V
+
+
U
S
A
O
PPLICATI
U
U
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1044ACN8 | 12V CMOS Voltage Converter |
| LTC1044ACS8 | 12V CMOS Voltage Converter |
| LTC1044AI | 12V CMOS Voltage Converter |
| LTC1044AIS8 | JT 66C 66#22D SKT PLUG |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1044AC | 制造商:LINER 制造商全稱:Linear Technology 功能描述:12V CMOS Voltage Converter |
| LTC1044ACN8 | 功能描述:IC REG MULTI CONFIG 20MA 8DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(kāi)關(guān):600kHz 電流 - 輸出:500mA 同步整流器:無(wú) 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 |
| LTC1044ACN8#PBF | 功能描述:IC REG MULTI CONFIG 20MA 8DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(kāi)關(guān):600kHz 電流 - 輸出:500mA 同步整流器:無(wú) 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 |
| LTC1044ACS8 | 功能描述:IC REG MULTI CONFIG 20MA 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(kāi)關(guān):600kHz 電流 - 輸出:500mA 同步整流器:無(wú) 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 |
| LTC1044ACS8#PBF | 功能描述:IC REG MULTI CONFIG 20MA 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(kāi)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(yè)面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
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