Datasheet 搜索 > DC/DC转换器 > Linear Technology（凌力尔特） > LTC1044AIS8#PBF 数据手册 > LTC1044AIS8#PBF 数据手册 1/14 页
器件3D模型￥ 13.917
LTC1044AIS8#PBF 数据手册 - Linear Technology（凌力尔特）
制造商:
Linear Technology（凌力尔特）
分类:
DC/DC转换器
封装:
SOIC-8
描述:
LINEAR TECHNOLOGY LTC1044AIS8#PBF 芯片, 电压转换器, 12V, 开关电容, 8SOIC
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
原理图在P7
焊盘布局在P12
技术参数、封装参数在P3
应用领域在P1
导航目录
LTC1044AIS8#PBF数据手册
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LTC1044A
1
1044afa
For more information www.linear.com/LTC1044A
Typical applicaTion
FeaTures DescripTion
12V CMOS
Voltage Converter
Generating –10V from 10V Output Voltage vs Load Current, V
+
= 10V
applicaTions
n
1.5V to 12V Operating Supply Voltage Range
n
13V Absolute Maximum Rating
n
200µA Maximum No Load Supply Current at 5V
n
Boost Pin (Pin 1) for Higher Switching Frequency
n
97% Minimum Open Circuit Voltage Conversion
Efficiency
n
95% Minimum Power Conversion Efficiency
n
I
S
= 1.5µA with 5V Supply When OSC Pin = 0V or V
+
n
High Voltage Upgrade to ICL7660/LTC1044
n
Conversion of 10V to ±10V Supplies
n
Conversion of 5V to ±5V Supplies
n
Precise Voltage Division: V
OUT
= V
IN
/2 ±20ppm
n
Voltage Multiplication: V
OUT
= ±nV
IN
n
Supply Splitter: V
OUT
= ±V
S
/2
n
Automotive Applications
n
Battery Systems with 9V Wall Adapters/Chargers
L, LT , LT C , LT M , Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
The LT C
®
1044A is a monolithic CMOS switched-capacitor
voltage converter. It plugs in for ICL7660/LTC1044 in
applications where higher input voltage (up to 12V) is
needed. The LTC1044A provides several conversion func
-
tions without
using inductors. The input voltage can be
inverted (V
OUT
= –V
IN
), doubled (V
OUT
= 2V
IN
), divided
(V
OUT
= V
IN
/2) or multiplied (V
OUT
= ±nV
IN
).
To optimize performance in specific applications, a boost
function is available to raise the internal oscillator frequency
by a factor of seven. Smaller external capacitors can be
used in higher frequency operation to save board space.
The internal oscillator can also be disabled to save power.
The supply current drops to 1.5µA at 5V input when the
OSC pin is tied to GND or V
+
.
1
2
3
4
8
7
6
5
LTC1044A
V
+
OSC
LV
V
OUT
BOOST
CAP
+
GND
CAP
–
+
10µF
+
10µF
10V INPUT
–10V OUTPUT
1044a TA01a
LOAD CURRENT (mA)
0
OUTPUT VOLTAGE (V)
–4
–2
0
40
1044a TA01b
–6
–8
–5
–3
–1
–7
–9
–10
10
20
30
50 60 70 80 90 100
T
A
= 25°C
C1 = C2 = 10µF
SLOPE = 45Ω
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