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參數資料
| 型號： | LTC1046M |
| 廠商： | Linear Technology Corporation |
| 英文描述： | “Inductorless” 5V to + 5V Converter |
| 中文描述： | “電感”5V至5V的轉換器 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 172K |
| 代理商： | LTC1046M |
1
LTC1046
“Inductorless”
5V to –5V Converter
Generating –5V from 5V
Output Voltage vs Load Current for V
+
= 5V
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 (V
OUT
= –V
IN
), divided
(V
OUT
=V
IN/
2) or multiplied (V
OUT
=
±
nV
IN
).
Designed to be pin-for-pin and functionally compatible
with the ICL7660 and LTC1044, the LTC1046 provides 2.5
times the output drive capability.
I
50mA Output Current
I
Plug-In Compatible with ICL7660/LTC1044
I
R
OUT
= 35
Maximum
I
300
μ
A Maximum No Load Supply Current at 5V
I
Boost Pin (Pin 1) for Higher Switching Frequency
I
97% Minimum Open-Circuit Voltage Conversion
Efficiency
I
95% Minimum Power Conversion Efficiency
I
Wide Operating Supply Voltage Range: 1.5V to 6V
I
Easy to Use
I
Low Cost
I
Conversion of 5V to
±
5V Supplies
I
Precise Voltage Division, V
OUT
= V
IN
/2
I
Supply Splitter, V
OUT
=
±
V
S
/2
FEATURES
DESCRIPTIOU
APPLICATIU
TYPICAL APPLICATIO
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
1
2
3
4
8
7
6
5
V
+
OSC
LV
V
OUT
BOOST
CAP
+
GND
CAP
–
LTC1046
10
μ
F
10
μ
F
1046 TA01
5V INPUT
–5V INPUT
+
+
LOAD CURRENT, I
L
(mA)
0
0
O
–1
–2
–3
–4
–5
10
20
30
40
1046 TA02
50
ICL7660/LTC1044,
R
OUT
= 55
T
A
= 25
°
C
LTC1046,
R
OUT
= 27
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