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LTC1044ACN8#TRPBF

Description
IC SWITCHED CAPACITOR CONVERTER, Switching Regulator or Controller
CategoryPower/power management    The power supply circuit   
File Size211KB,14 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
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LTC1044ACN8#TRPBF Overview

IC SWITCHED CAPACITOR CONVERTER, Switching Regulator or Controller

LTC1044ACN8#TRPBF Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerLinear ( ADI )
package instructionDIP,
Reach Compliance Codecompliant
ECCN codeEAR99
Is SamacsysN
Other featuresLG-MAX; ST-HEIGHT CALCULATED
Analog Integrated Circuits - Other TypesSWITCHED CAPACITOR CONVERTER
Maximum input voltage12 V
Minimum input voltage1.5 V
Nominal input voltage5 V
JESD-30 codeR-PDIP-T8
JESD-609 codee3
length10.16 mm
Number of functions1
Number of terminals8
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Package shapeRECTANGULAR
Package formIN-LINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Maximum seat height3.937 mm
surface mountNO
Switch configurationDOUBLER INVERTER
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceMatte Tin (Sn)
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width7.62 mm
Base Number Matches1
LTC1044A
12V CMOS
Voltage Converter
FeaTures
n
n
n
n
n
DescripTion
The
LTC
®
1044A
is a monolithic CMOS switched-capacitor
voltage converter. It plugs in for ICL7660/LTC1044 in
applications where higher input voltage (up to 12V) is
needed. The LTC1044A provides several conversion func-
tions without using inductors. The input voltage can be
inverted (V
OUT
= –V
IN
), doubled (V
OUT
= 2V
IN
), divided
(V
OUT
= V
IN
/2) or multiplied (V
OUT
= ±nV
IN
).
To optimize performance in specific applications, a boost
function is available to raise the internal oscillator frequency
by a factor of seven. Smaller external capacitors can be
used in higher frequency operation to save board space.
The internal oscillator can also be disabled to save power.
The supply current drops to 1.5µA at 5V input when the
OSC pin is tied to GND or V
+
.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
n
n
n
1.5V to 12V Operating Supply Voltage Range
13V Absolute Maximum Rating
200µA Maximum No Load Supply Current at 5V
Boost Pin (Pin 1) for Higher Switching Frequency
97% Minimum Open Circuit Voltage Conversion
Efficiency
95% Minimum Power Conversion Efficiency
I
S
= 1.5µA with 5V Supply When OSC Pin = 0V or V
+
High Voltage Upgrade to ICL7660/LTC1044
applicaTions
n
n
n
n
n
n
n
Conversion of 10V to ±10V Supplies
Conversion of 5V to ±5V Supplies
Precise Voltage Division: V
OUT
= V
IN
/2 ±20ppm
Voltage Multiplication: V
OUT
= ±nV
IN
Supply Splitter: V
OUT
= ±V
S
/2
Automotive Applications
Battery Systems with 9V Wall Adapters/Chargers
Typical applicaTion
Generating –10V from 10V
LTC1044A
1
BOOST
CAP
+
+
Output Voltage vs Load Current, V
+
= 10V
0
–1
–2
OUTPUT VOLTAGE (V)
–3
–4
–5
–6
–7
–8
–9
–10
0
10 20 30 40 50 60 70 80 90 100
LOAD CURRENT (mA)
1044a TA01b
V
8
7
6
5
10V INPUT
T
A
= 25°C
C1 = C2 = 10µF
+
2
10µF
3
4
OSC
LV
V
OUT
1044a TA01a
GND
CAP
–10V OUTPUT
10µF
+
SLOPE = 45
1044afa
For more information
www.linear.com/LTC1044A
1

LTC1044ACN8#TRPBF Related Products

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Description IC SWITCHED CAPACITOR CONVERTER, Switching Regulator or Controller IC reg multi config 20ma 8soic IC reg multi config 20ma 8soic IC reg multi config 20ma 8soic IC REG SWTCHD CAP INV 20MA 8SOIC IC SWITCHED CAPACITOR CONVERTER, Switching Regulator or Controller IC REG SWTCHD CAP INV RATIO 8DIP IC REG SWTCHD CAP INV RATIO 8DIP IC REG SWTCHD CAP INV 20MA 8SOIC Output current: 20mA Switching operating frequency: 1kHz ~ 5kHz Output type: Fixed Number of output voltage channels: 1 Function type: Ratiometric Output configuration: Positive or Negative 12V CMOS voltage converter
Is it Rohs certified? conform to incompatible incompatible conform to conform to conform to conform to conform to conform to conform to
Maker Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI )
package instruction DIP, SOP, SOP8,.25 SOP, SOP8,.25 SOP, SOP8,.25 SOP, SOP8,.25 DIP, DIP, DIP8,.3 DIP, DIP8,.3 SOP, SOP8,.25 SOP, SOP8,.25
Reach Compliance Code compliant _compli _compli compliant compliant compliant compliant compliant compliant compliant
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Is Samacsys N N N N N N N N N N
Analog Integrated Circuits - Other Types SWITCHED CAPACITOR CONVERTER SWITCHED CAPACITOR CONVERTER SWITCHED CAPACITOR CONVERTER SWITCHED CAPACITOR CONVERTER SWITCHED CAPACITOR CONVERTER SWITCHED CAPACITOR CONVERTER SWITCHED CAPACITOR CONVERTER SWITCHED CAPACITOR CONVERTER SWITCHED CAPACITOR CONVERTER SWITCHED CAPACITOR CONVERTER
Maximum input voltage 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V
Minimum input voltage 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V
JESD-30 code R-PDIP-T8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDIP-T8 R-PDIP-T8 R-PDIP-T8 R-PDSO-G8 R-PDSO-G8
JESD-609 code e3 e0 e0 e3 e3 e3 e3 e3 e3 e3
length 10.16 mm 4.9 mm 4.9 mm 4.9 mm 4.9 mm 10.16 mm 9.78 mm 9.78 mm 4.9 mm 4.9 mm
Number of functions 1 1 1 1 1 1 1 1 1 1
Number of terminals 8 8 8 8 8 8 8 8 8 8
Maximum operating temperature 70 °C 70 °C 85 °C 70 °C 70 °C 85 °C 70 °C 85 °C 85 °C 85 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code DIP SOP SOP SOP SOP DIP DIP DIP SOP SOP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form IN-LINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE IN-LINE IN-LINE IN-LINE SMALL OUTLINE SMALL OUTLINE
Peak Reflow Temperature (Celsius) NOT SPECIFIED 235 235 260 260 NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED 260 260
Maximum seat height 3.937 mm 1.75 mm 1.75 mm 1.75 mm 1.75 mm 3.937 mm 4.445 mm 4.445 mm 1.75 mm 1.75 mm
surface mount NO YES YES YES YES NO NO NO YES YES
Switch configuration DOUBLER INVERTER DOUBLER INVERTER DOUBLER INVERTER DOUBLER INVERTER DOUBLER INVERTER DOUBLER INVERTER DOUBLER INVERTER DOUBLER INVERTER DOUBLER INVERTER DOUBLER INVERTER
technology CMOS CMOS CMOS CMOS CMOS CMOS CMOS CMOS CMOS CMOS
Temperature level COMMERCIAL COMMERCIAL INDUSTRIAL COMMERCIAL COMMERCIAL INDUSTRIAL COMMERCIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal surface Matte Tin (Sn) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn)
Terminal form THROUGH-HOLE GULL WING GULL WING GULL WING GULL WING THROUGH-HOLE THROUGH-HOLE THROUGH-HOLE GULL WING GULL WING
Terminal pitch 2.54 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 2.54 mm 2.54 mm 2.54 mm 1.27 mm 1.27 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED 20 20 30 30 NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED 30 30
width 7.62 mm 3.9 mm 3.9 mm 3.9 mm 3.9 mm 7.62 mm 7.62 mm 7.62 mm 3.9 mm 3.9 mm
Base Number Matches 1 1 1 1 1 1 1 1 1 1
Brand Name - Linear Technology Linear Technology Linear Technology Linear Technology - Linear Technology Linear Technology Linear Technology Linear Technology
Parts packaging code - SOIC SOIC SOIC SOIC - DIP DIP SOIC SOIC
Contacts - 8 8 8 8 - 8 8 8 8
Manufacturer packaging code - S8 S8 S8 S8 - N N S8 S8
Humidity sensitivity level - 1 1 1 1 - 1 1 1 1
Maximum output current - 0.02 A 0.02 A 0.02 A 0.02 A - 0.02 A 0.02 A 0.02 A 0.02 A
Encapsulate equivalent code - SOP8,.25 SOP8,.25 SOP8,.25 SOP8,.25 - DIP8,.3 DIP8,.3 SOP8,.25 SOP8,.25
Certification status - Not Qualified Not Qualified Not Qualified Not Qualified - Not Qualified Not Qualified Not Qualified Not Qualified
Maximum supply current (Isup) - 0.2 mA 0.2 mA 0.2 mA 0.2 mA - 0.2 mA 0.2 mA 0.2 mA 0.2 mA
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