Motor de Búsqueda de Datasheet de Componentes Electrónicos
Selected language     Spanish  ▼

Delete All
ON OFF
ALLDATASHEET.ES

X  

Preview PDF Download HTML

LT1054L Datasheet(PDF) 1 Page - Linear Technology

No. de Pieza. LT1054L
Descripción  Switched-Capacitor Voltage Converter with Regulator
Descarga  16 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Fabricante  LINER [Linear Technology]
Página de inicio  http://www.linear.com
Logo 

LT1054L Datasheet(HTML) 1 Page - Linear Technology

 
Zoom Inzoom in Zoom Outzoom out
 1 / 16 page
background image
1
LT1054/LT1054L
1054lfe
DESCRIPTIO
FEATURES
APPLICATIO S
BLOCK DIAGRA
Switched-Capacitor Voltage
Converter with Regulator
s
Available in Space Saving SO-8 Package
s
Output Current: 100mA (LT1054)
125mA (LT1054L)
s
Reference and Error Amplifier for Regulation
s
Low Loss: 1.1V at 100mA
s
Operating Range:3.5V to 15V (LT1054)
3.5V to 7V (LT1054L)
s
External Shutdown
s
External Oscillator Synchronization
s
Can Be Paralleled
s
Pin Compatible with the LTC
®1044/LTC7660
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
µA.
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.
OUTPUT CURRENT (mA)
0
1
2
50
1054 TA01•
0
25
75
100
125
TJ = 125°C
TJ = 25°C
TJ = –55°C
LT1054
LT1054L
3.5V
≤ VIN ≤ 15V (LT1054)
3.5V
≤ VIN ≤ 7V (LT1054L)
CIN = COUT = 100µF
INDICATES GUARANTEED
TEST POINT
, LTC and LT are registered trademarks of Linear Technology Corporation.
LT1054/LT1054L Voltage Loss
REFERENCE
OSC
DRIVE
DRIVE
DRIVE
DRIVE
OSC
CAP
GND
CAP +
FEEDBACK/
SHUTDOWN
+
R
R
*EXTERNAL CAPACITORS
2.5V
6
1
4
3
–VOUT
LT1054 • BD
5
2
8
7
Q
Q
VREF
CIN*
VIN
COUT*
+
+
s
Voltage Inverter
s
Voltage Regulator
s
Negative Voltage Doubler
s
Positive Voltage Doubler


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16 


Datasheet Download




Enlace URL




Privacy Policy
ALLDATASHEET.ES
Does ALLDATASHEET help your business so far?  [ DONATE ]  

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Favorito   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn