参数资料
| 型号： | LT3463EDD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/8页 |
| 文件大小： | 0K |
| 描述： | IC REG INV ADJ 0.25A DL 10DFN |
| 标准包装： | 2,500 |
| 类型： | 反相 |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 1.25 V ~ 40 V |
| 输入电压： | 2.4 V ~ 15 V |
| 电流 - 输出： | 250mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 10-DFN（3x3） |
LT3463/LT3463A
Dual Micropower
DC/DC Converters
with Schottky Diodes
FEATURES
DESCRIPTIO
s
s
s
s
s
s
s
s
Generates Well-Regulated Positive and
Negative Outputs
Low Quiescent Current:
20 μ A (per Converter) in Active Mode
<1 μ A in Shutdown Mode
Internal 42V Power Switches
Internal 42V Schottky Diodes
Low V CESAT Switch: 180mV at 150mA
Input Voltage Range: 2.4V to 15V
High Output Voltages: Up to ± 40V
Low Profile (0.8mm) 3mm x 3mm DFN Package
The LT ? 3463/LT3463A are dual micropower DC/DC con-
verters with internal Schottky diodes in a 10-lead 3mm ×
3mm DFN package. Negative and positive LT3463 con-
verters have a 250mA current limit. The LT3463A positive
converter also has a 250mA limit, while the negative
converter has a 400mA limit. Both devices have an input
voltage range of 2.4V to 15V, making them ideal for a wide
variety of applications. Each converter features a quies-
cent current of only 20 μ A, which drops to under 1 μ A in
shutdown. A current limited, fixed off-time control scheme
conserves operating current, resulting in high efficiency
APPLICATIO S
over a broad range of load current. The 42V switch enables
high voltage outputs up to ± 40V to be easily generated
without the use of costly transformers. The low 300ns off-
s
s
s
s
CCD Bias
LCD Bias
Handheld Computers
Digital Cameras
time permits the use of tiny, low profile inductors and
capacitors to minimize footprint and cost in space-con-
scious portable applications.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
CCD Bias Supply (15V, –8V)
Efficiency and Power Loss
V IN
2.7V
TO 5V
4.7 μ F
V IN
10 μ H
SW1 V OUT1
1M
90.9k
V OUT1
15V
10mA
2.2 μ F
80
75
70
15V EFFICIENCY
–8V EFFICIENCY
V IN = 3.6V
240
200
160
SHDN1
FB1
LT3463A
V REF
65
120
SHDN2
GND
SW2
FB2
D2
154k
60
15V LOSS
80
55
40
10 μ H
1 μ F
1M
4.7 μ F
10pF
V OUT2
–8V
50mA
50
0.1
–8V LOSS
1 10 100
LOAD CURRENT (mA)
3463 TA01b
0
3463 TA01a
3463f
1
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| LT3464ETS8#TR | 功能描述:IC REG BOOST ADJ 115MA TSOT23-8 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:500 系列:- 类型:切换式电容器（充电泵），反相 输出类型:固定 输出数:1 输出电压:-3V 输入电压:2.3 V ~ 5.5 V PWM 型:Burst Mode? 频率 - 开关:900kHz 电流 - 输出:100mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 细型，TSOT-23-6 包装:带卷 (TR) 供应商设备封装:TSOT-23-6 其它名称:LTC1983ES6-3#TRMTR |
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