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參數(shù)資料
| 型號： | LT3483IDC#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.23 A SWITCHING REGULATOR, PDSO8 |
| 封裝： | 2 X 2 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, DFN-8 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 875K |
| 代理商： | LT3483IDC#PBF |
LT3483/LT3483A
1
3483fc
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Inverting Micropower
DC/DC Converters
with Schottky
The LT3483/LT3483A are micropower inverting DC/DC
converters with integrated Schottky and one resistor
feedback. The small package size, high level of integration
and use of tiny surface mount components yield a solution
size as small as 40mm2. The devices feature a quiescent
current of only 40A at no load, which further reduces
to 0.1A in shutdown. A current limited, fixed off-time
control scheme conserves operating current, resulting
in high efficiency over a broad range of load current. A
precisely trimmed 10A feedback current enables one
resistor feedback and virtually eliminates feedback load-
ing of the output. The 40V switch enables voltage outputs
up to –38V to be generated without the use of costly
transformers. The LT3483/LT3483A’s low 300ns off-time
permits the use of tiny low profile inductors and capaci-
tors to minimize footprint and cost in space-conscious
portable applications.
3.6V to –8V DC/DC Converter
n
Internal 40V Schottky Diode
n
One Resistor Feedback (Other Resistor Inside)
n
Internal 40V, 200mA/400mA Power Switch
n
Generates Regulated Negative Outputs to –38V
n
Low Quiescent Current:
40A in Active Mode
<1A in Shutdown Mode
n
Low VCESAT Switch: 200mV at 150mA
n
Wide Input Range: 2.5V to 16V
n
Uses Small Surface Mount Components
n
Output Short-Circuit Protected
n
Available in a 6-Lead SOT-23 (LT3483 Only) and
Low Profile 8-Lead DFN (2mm
× 2mm × 0.75mm)
Packages
n
LCD Bias
n
Handheld Computers
n
Battery Backup
n
Digital Cameras
n
OLED Bias
Efficiency and Power Loss
SW
10H
D
LT3483
FB
4.7F
0.22F
VIN
10
806k
5pF
2.2F
3483 TA01a
VOUT
–8V
25mA
VIN
3.6V
SHDN
GND
LOAD CURRENT (mA)
0.1
55
EFFICIENCY
(%)
POWER
LOSS
(mW)
60
65
70
75
0.1
1
10
100
VIN = 3.6V
POWER
LOSS
1000
1
10
3483 TA01b
100
EFFICIENCY
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners. Protected by U.S. Patents, including 7710700.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT3483IDC-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Inverting Micropower DC/DC Converter with Schottky |
| LT3483IS6#TRMPBF | 功能描述:IC REG INV ADJ 0.2A TSOT23-6 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: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 |
| LT3483IS6#TRPBF | 功能描述:IC REG INV ADJ 0.2A TSOT23-6 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: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 |
| LT3483IS6-PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Inverting Micropower DC/DC Converter with Schottky |
| LT3483IS6-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Inverting Micropower DC/DC Converter with Schottky |
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