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參數(shù)資料
| 型號： | LT1054 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Switched-Capacitor Voltage Converter with Regulator(帶穩(wěn)壓器的開關電容電壓轉(zhuǎn)換器) |
| 中文描述： | 開關電容電壓轉(zhuǎn)換器穩(wěn)壓器（帶穩(wěn)壓器的開關電容電壓轉(zhuǎn)換器） |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 281K |
| 代理商： | LT1054 |
1
LT1054/LT1054L
Switched-Capacitor Voltage
Converter with Regulator
S
FEATURE
D
The LT
1054 is a monolithic, bipolar, switched-capacitor
voltage converter and regulator. The LT1054 provides
higher output current than previously available converters
with significantly lower voltage losses. An adaptive switch
driver scheme optimizes efficiency over a wide range of
output currents. Total voltage loss at 100mA output current
is typically 1.1V. This holds true over the full supply voltage
range of 3.5V to 15V. Quiescent current is typically 2.5mA.
The LT1054 also provides regulation, a feature not previ-
ously available in switched-capacitor voltage converters.
By adding an external resistive divider a regulated output
can be obtained. This output will be regulated against
changes in both input voltage and output current. The
LT1054 can also be shut down by grounding the feedback
pin. Supply current in shutdown is less than 100
μ
A.
The internal oscillator of the LT1054 runs at a nominal
frequency of 25kHz. The oscillator pin can be used to adjust
the switching frequency or to externally synchronize the
LT1054.
The LT1054 is pin compatible with previous converters
such the LTC1044/LTC7660.
U
ESCRIPTIO
I
Available in Space Saving SO-8 Package
I
Output Current: 100mA (LT1054)
125mA (LT1054L)
I
Low Loss: 1.1V at 100mA
I
Operating Range:3.5V to 15V (LT1054)
3.5V to 7V (LT1054L)
I
Reference and Error Amplifier for Regulation
I
External Shutdown
I
External Oscillator Synchronization
I
Can Be Paralleled
I
Pin Compatible with the LTC
1044/LTC7660
OUTPUT CURRENT (mA)
0
V
1
2
50
1054 TA01
0
25
75
100
125
T
J
= 125
°
C
T
J
= 25
°
C
T
J
= –55
°
C
LT1054
LT1054L
3.5V
≤
V
IN
≤
15V (LT1054)
3.5V
≤
V
IN
≤
7V (LT1054L)
C
= C
= 100
μ
F
INDICATES GUARANTEED
TEST POINT
, LTC and LT are registered trademarks of Linear Technology Corporation.
LT1054/LT1054L Voltage Loss
I
Voltage Inverter
I
Voltage Regulator
I
Negative Voltage Doubler
I
Positive Voltage Doubler
U
S
A
O
PPLICATI
REFERENCE
OSC
DRIVE
DRIVE
DRIVE
DRIVE
OSC
CAP
–
GND
+
CAP
+
FEEDBACK/
SHUTDOWN
–
+
R
R
*EXTERNAL CAPACITORS
2.5V
6
1
4
3
–V
OUT
LT1054 BD
5
2
8
7
Q
Q
V
REF
C
IN
*
V
IN
C
OUT
*
+
BLOCK DIAGRA
M
W
相關PDF資料 |
PDF描述 |
|---|---|
| LT1054L | Switched-Capacitor Voltage Converter with Regulator(帶穩(wěn)壓器的開關電容電壓轉(zhuǎn)換器) |
| LT1055 | Octal Buffers/Drivers With 3-State Outputs 20-PDIP 0 to 70 |
| LT1055S8 | Precision, High Speed, JFET Input Operational Amplifiers |
| LT1056CN8 | Precision, High Speed, JFET Input Operational Amplifiers |
| LT1055AM | Precision, High Speed, JFET Input Operational Amplifiers |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LT1054CDW | 功能描述:電荷泵 Bipolar Regulated V RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| LT1054CDW | 制造商:Texas Instruments 功能描述: |
| LT1054CDWE4 | 功能描述:電荷泵 Switched-Capacitor Voltage Converter RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| LT1054CDWG4 | 功能描述:電荷泵 Swed-Capacitor Vltg Converters RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| LT1054CDWR | 功能描述:電荷泵 Bipolar Regulated V RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
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