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LT1054ISW#PBF

Description
IC REG SWITCHD CAP INV 16SOIC
CategoryPower/power management    The power supply circuit   
File Size284KB,16 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric View All

LT1054ISW#PBF Overview

IC REG SWITCHD CAP INV 16SOIC

LT1054ISW#PBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
Parts packaging codeSOIC
package instructionSOP, SOP16,.4
Contacts16
Manufacturer packaging codeSW
Reach Compliance Codecompliant
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHED CAPACITOR REGULATOR
control modeVOLTAGE-MODE
Maximum input voltage15 V
Minimum input voltage3.5 V
Nominal input voltage7 V
JESD-30 codeR-PDSO-G16
JESD-609 codee3
length10.3 mm
Humidity sensitivity level1
Number of functions1
Number of terminals16
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current0.1 A
Nominal output voltage-5 V
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP16,.4
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height2.642 mm
surface mountYES
Switch configurationDOUBLER INVERTER
Maximum switching frequency40 kHz
technologyBIPOLAR
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width7.5 mm
Base Number Matches1
LT1054/LT1054L
Switched-Capacitor Voltage
Converter with Regulator
Features
Description
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 100µA.
The internal oscillator of the LT1054 runs at a nominal
frequency of 25kHz. The oscillator pin can be used to ad-
just the switching frequency or to externally synchronize
the LT1054.
The LT1054 is pin compatible with previous converters
such the LTC1044/ICL7660.
Output Current: 100mA (LT1054)
125mA (LT1054L)
Reference and Error Amplifier for Regulation
Low Loss: 1.1V at 100mA
Operating Range:3.5V to 15V (LT1054)
3.5V to 7V (LT1054L)
External Shutdown
External Oscillator Synchronization
Can Be Paralleled
Pin Compatible with the LTC
®
1044/ICL7660
Available in SW16 and SO-8 Packages
applications
Voltage Inverter
Voltage Regulator
Negative Voltage Doubler
Positive Voltage Doubler
L,
LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks
and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
Block Diagram
V
REF
6
2.5V
R
DRIVE
V
IN
8
REFERENCE
2
LT1054/LT1054 Voltage Loss
3.5V ≤ V
IN
≤ 15V (LT1054)
3.5V ≤ V
IN
≤ 7V (LT1054L)
C
IN
= C
OUT
= 100µF
INDICATES GUARANTEED
TEST POINT
LT1054
LT1054L
+
1
FEEDBACK/
SHUTDOWN
R
7
OSC
Q
OSC
Q
CAP
4
C
IN
*
VOLTAGE LOSS (V)
+
CAP
+
2
1
DRIVE
DRIVE
3 GND
T
J
= 125°C
T
J
= 25°C
T
J
= –55°C
0
*EXTERNAL CAPACITORS
+
C
OUT
*
0
25
5 –V
OUT
DRIVE
LT1054 • BD
50
75
100
OUTPUT CURRENT (mA)
125
1054 TA01•
1954lfh
For more information
www.linear.com/LT1054
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