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LTC1044AIS8#PBF PDF预览

LTC1044AIS8#PBF

更新时间: 2024-11-27 13:09:39
品牌 Logo 应用领域
凌特 - Linear 转换器光电二极管
页数 文件大小 规格书
12页 276K
描述
暂无描述

LTC1044AIS8#PBF 数据手册

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LTC1044A  
12V CMOS  
Voltage Converter  
U
DESCRIPTIO  
EATURE  
1.5V to 12V Operating Supply Voltage Range  
13V Absolute Maximum Rating  
200µA Maximum No Load Supply Current at 5V  
Boost Pin (Pin 1) for Higher Switching Frequency  
97% Minimum Open Circuit Voltage Conversion  
Efficiency  
95% Minimum Power Conversion Efficiency  
IS = 1.5µA with 5V Supply When OSC Pin = 0V or V+  
High Voltage Upgrade to ICL7660/LTC1044  
S
F
The LTC1044A 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 (VOUT = VIN), doubled (VOUT = 2VIN), divided  
(VOUT = VIN/2) or multiplied (VOUT = ±nVIN).  
To optimize performance in specific applications, a boost  
function is available to raise the internal oscillator fre-  
quency by a factor of 7. 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+.  
O U  
PPLICATI  
A
S
Conversion of 10V to ±10V Supplies  
Conversion of 5V to ±5V Supplies  
Precise Voltage Division: VOUT = VIN/2 ±20ppm  
Voltage Multiplication: VOUT = ±nVIN  
Supply Splitter: VOUT = ±VS/2  
Automotive Applications  
Battery Systems with 9V Wall Adapters/Chargers  
U
O
TYPICAL APPLICATI  
Generating 10V from 10V  
Output Voltage vs Load Current, V+ = 10V  
0
LTC1044A  
T
= 25°C  
A
1
2
3
4
8
7
6
5
–1  
–2  
–3  
–4  
–5  
–6  
–7  
–8  
–9  
–10  
+
C1 = C2 = 10µF  
10V INPUT  
BOOST  
V
+
CAP  
OSC  
LV  
+
GND  
10µF  
–10V OUTPUT  
CAP  
V
OUT  
10µF  
LTC1044A • TA01  
+
SLOPE = 45Ω  
0
10 20 30 40 50 60 70 80 90 100  
LOAD CURRENT (mA)  
LTC1044A • TA02  
1

LTC1044AIS8#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC1044AIS8#TRPBF Linear

完全替代

LTC1044A - 12V CMOS Voltage Converter; Package: SO; Pins: 8; Temperature Range: -40&de
LTC1044ACS8#PBF Linear

类似代替

暂无描述
TC7662BCOA MICROCHIP

功能相似

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