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參數(shù)資料
| 型號(hào)： | LTC1261LCS8-4.5 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Switched Capacitor Regulated Voltage Inverter |
| 中文描述： | 0.02 A SWITCHED CAPACITOR REGULATOR, 650 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SO-8 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 182K |
| 代理商： | LTC1261LCS8-4.5 |
1
LTC1261L
TYPICAL APPLICATIO
N
U
DESCRIPTIOU
The LTC
1261L is a switched-capacitor voltage inverter
designed to provide a regulated negative voltage from a
single positive supply. The LTC1261L operates from a
single 2.7V to 5.25V supply and provides an adjustable
output voltage from –1.23V to –5V. The LTC1261L-4/
LTC1261L-4.5 needs a single 4.5V to 5.25V supply and
provides a fixed output voltage of –4V to –4.5V respec-
tively. Three external capacitors are required: a 0.1
μ
F
flying capacitor and an input and output bypass capaci-
tors. An optional compensation capacitor at ADJ (COMP)
can be used to reduce the output voltage ripple.
Each version of the LTC1261L will supply up to 20mA
output current with guaranteed output regulation of
±
3.5%.
The LTC1261L includes an open-drain REG output that
pulls low when the output is within 5% of the set value.
Quiescent current is typically 650
μ
A when operating and
5
μ
A in shutdown.
The LTC1261L is available in 8-pin MSOP and SO pack-
ages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIU
FEATURES
Switched Capacitor
Regulated Voltage Inverter
I
Regulated Negative Voltage from a
Single Positive Supply
I
REG Pin Indicates Output is in Regulation
I
Adjustable or Fixed Output Voltages
I
Output Regulation:
±
3.5%
I
Supply Current: 650
μ
A Typ
I
Shutdown Mode Drops Supply Current to 5
μ
A
I
Up to 20mA Output Current
I
Requires Only Three or Four External Capacitors
I
Available in MS8 and SO-8 Packages
Waveforms for –4V Generator with Power Valid
1261L TAO2
0.1ms/DIV
0V
–4V
1
2
3
4
8
7
6
5
LTC1261L-4
C1
–
SHDN
REG
OUT
COMP
V
CC
C1
+
GND
C2
0.1
μ
F
1261L TA01
C4
3.3
μ
F
V
= –4V
AT 10mA
POWER VALID
5V
C1
1
μ
F
5V
10k
C3*
100pF
*OPTIONAL
+
–4V Generator with Power Valid
I
GaAs FET Bias Generators
I
Negative Supply Generators
I
Battery-Powered Systems
I
Single Supply Applications
5V
0V
5V
0V
POWER VALID
SHDN
OUT
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1261LIMS8#PBF | 制造商:Linear Technology 功能描述: 制造商:Linear Technology 功能描述:IC REG SWITCHD CAP INV ADJ 8MSOP 制造商:Linear Technology 功能描述:V REG 2.7-5.25V -1.23TO-5V 8MSOP 制造商:Linear Technology 功能描述:V REG, 2.7-5.25V, -1.23TO-5V, 8MSOP 制造商:Linear Technology 功能描述:DP-Charge Pump/General Purpose, Adj Sw Cap Reg Volt Inverter 制造商:Linear Technology 功能描述:DC-DC CONVERTER, 650KHZ, 20mA, MSOP-8, Primary Input Voltage:5.25V, No. of Outputs:1, Output Current:20mA, No. of Pins:8, Operating Temperature Min:-40C, Operating Temperature Max:85C, MSL:MSL 1 - Unlimited, Package / Case:8-MSOP , RoHS Compliant: Yes |
| LTC1261LIMS8#TRPBF | 制造商:Linear Technology 功能描述:IC REG SWITCHD CAP INV ADJ 8MSOP |
| LTC1261LIMS8-4#PBF | 制造商:Linear Technology 功能描述:IC REG SWITCHD CAP INV -4V 8MSOP 制造商:Linear Technology 功能描述:DP-Charge Pump/General Purpose, Adj Sw Cap Reg Volt Inverter |
| LTC1261LIMS8-4#TRPBF | 制造商:Linear Technology 功能描述:IC REG SWITCHD CAP INV -4V 8MSOP |
| LTC1261LIMS8-4.5#PBF | 制造商:Linear Technology 功能描述:IC REG SWITCHD CAP INV 8MSOP 制造商:Linear Technology 功能描述:DP-Charge Pump/General Purpose, Adj Sw Cap Reg Volt Inverter |
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