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LTC1046IS8 PDF预览

LTC1046IS8

更新时间: 2024-11-28 22:34:03
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 175K
描述
“Inductorless” 5V to + 5V Converter

LTC1046IS8 数据手册

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LTC1046  
“Inductorless”  
5V to 5V Converter  
U
FEATURES  
DESCRIPTIO  
The LTC®1046 is a 50mA monolithic CMOS switched  
capacitor voltage converter. It plugs in for ICL7660/  
LTC1044 in 5V applications where more output current is  
needed. The device is optimized to provide high current  
capability for input voltages of 6V or less. It trades off  
operating voltage to get higher output current. The  
LTC1046 provides several voltage conversion functions:  
the input voltage can be inverted (VOUT = VIN), divided  
(VOUT =VIN/2) or multiplied (VOUT = ±nVIN).  
50mA Output Current  
Plug-In Compatible with ICL7660/LTC1044  
ROUT = 35Maximum  
300µA 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  
Wide Operating Supply Voltage Range: 1.5V to 6V  
Easy to Use  
Low Cost  
Designed to be pin-for-pin and functionally compatible  
with the ICL7660 and LTC1044, the LTC1046 provides 2.5  
times the output drive capability.  
U
, LTC and LT are registered trademarks of Linear Technology Corporation.  
APPLICATIO S  
Conversion of 5V to ±5V Supplies  
Precise Voltage Division, VOUT = VIN/2  
Supply Splitter, VOUT = ±VS/2  
U
TYPICAL APPLICATIO  
Output Voltage vs Load Current for V+ = 5V  
–5  
T
= 25°C  
A
Generating 5V from 5V  
–4  
–3  
–2  
–1  
0
LTC1046  
ICL7660/LTC1044,  
= 55Ω  
1
2
3
4
8
7
6
5
R
+
OUT  
5V INPUT  
BOOST  
V
+
CAP  
OSC  
LV  
LTC1046,  
= 27Ω  
+
R
OUT  
GND  
10µF  
CAP  
V
OUT  
–5V INPUT  
10µF  
+
1046 TA01  
0
10  
20  
30  
40  
50  
LOAD CURRENT, I (mA)  
L
1046 TA02  
1

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