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LTC1430CS#TRPBF

Description
IC SW REG CNTRLR STEP-DWN 16SOIC
CategoryPower/power management    The power supply circuit   
File Size218KB,16 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
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LTC1430CS#TRPBF Overview

IC SW REG CNTRLR STEP-DWN 16SOIC

LTC1430CS#TRPBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
MakerLinear ( ADI )
Parts packaging codeSOIC
package instructionSOP,
Contacts16
Manufacturer packaging codeS
Reach Compliance Codecompliant
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeVOLTAGE-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage8 V
Minimum input voltage4 V
Nominal input voltage5 V
JESD-30 codeR-PDSO-G16
JESD-609 codee3
length9.906 mm
Humidity sensitivity level1
Number of functions1
Number of terminals16
Maximum operating temperature70 °C
Minimum operating temperature
Nominal output voltage3.3 V
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.752 mm
Maximum supply current (Isup)0.7 mA
surface mountYES
Switch configurationPUSH-PULL
Maximum switching frequency260 kHz
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width3.899 mm
Base Number Matches1
LTC1430
High Power Step-Down
Switching Regulator Controller
FEATURES
s
s
s
s
DESCRIPTIO
s
s
s
s
s
s
s
s
High Power 5V to 3.xV Switching Controller:
Can Exceed 10A Output
All N-Channel External MOSFETs
Constant Frequency Operation—Small Inductor
Excellent Output Regulation:
±1%
Over Line, Load
and Temperature Variations
High Efficiency: Over 95% Possible
Fixed Frequency Operation
No Low Value Sense Resistor Needed
Outputs Can Drive External FETs with Up to
10,000pF Gate Capacitance
Quiescent Current: 350µA Typ, 1µA in Shutdown
Fast Transient Response
Adjustable or Fixed 3.3V Output
Available in 8- and 16-Lead PDIP and SO Packages
The LTC
®
1430 is a high power, high efficiency switching
regulator controller optimized for 5V to 3.xV applications.
It includes a precision internal reference and an internal
feedback system that can provide output regulation of
±1%
over temperature, load current and line voltage shifts. The
LTC1430 uses a synchronous switching architecture with
two N-channel output devices, eliminating the need for a
high power, high cost P-channel device. Additionally, it
senses output current across the drain-source resistance
of the upper N-channel FET, providing an adjustable
current limit without an external low value sense resistor.
The LTC1430 includes a fixed frequency PWM oscillator for
low output ripple under virtually all operating conditions.
The 200kHz free-running clock frequency can be externally
adjusted from 100kHz to above 500kHz. The LTC1430
features low 350µA quiescent current, allowing greater
than 90% efficiency operation in converter designs from
1A to greater than 50A output current. Shutdown mode
drops the LTC1430 supply current to 1µA.
For new
designs, refer to the LTC3830.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Pentium is a registered trademark of Intel Corporation.
APPLICATIO S
s
s
s
s
Power Supply for P6 and Pentium
®
Microprocessors
High Power 5V to 3.xV Regulators
Local Regulation for Dual Voltage Logic Boards
Low Voltage, High Current Battery Regulation
TYPICAL APPLICATIO
V
IN
5V
Typical 5V to 3.3V, 10A Application
100
+
100Ω
1µF
PV
CC2
1N4148
PV
CC1
G1
I
MAX
LTC1430 I
FB
FREQSET
SHDN
COMP
G2
PGND
GND
SENSE
SENSE
+
+
16k
0.1µF
0.1µF
1k
C
IN
220µF
×4
EFFICIENCY (%)
+
4.7µF
0.1µF
0.01µF
NC
SHUTDOWN
C1
220pF
V
CC
SS
M1A, M1B
2 IN PARALLEL
L1, 2.8µH
+
M2
C
OUT
330µF
×6
3.3V
10A
R
C
7.5k
C
C
4700pF
LTC1430 • TA01
FB
NC
C
IN
: AVX-TPSE227M010R0100
C
OUT
: AVX-TPSE337M006R0100
L1: ETQP6F1R6SFA
M1A, M1B, M2: MOTOROLA MTD20N03HL
U
Efficiency
T
A
= 25°C
V
IN
= 5V
V
OUT
= 3.3V
90
80
70
60
50
40
0.1
1
LOAD CURRENT (A)
10
LTC1430 • TA02
U
U
1

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Description IC SW REG CNTRLR STEP-DWN 16SOIC IC SW reg cntrlr step-dwn 8soic IC SW reg cntrlr step-dwn 16soic IC SW reg cntrlr step-dwn 16soic IC SW REG CNTRLR STEP-DWN 16SOIC IC SW REG CNTRLR STEP-DWN 16SOIC IC SW REG CNTRLR STEP-DWN 16SOIC IC SW REG CNTRLR STEP-DWN 8-SOIC IC SW REG CNTRLR STEP-DWN 8-SOIC
Brand Name Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology
Is it Rohs certified? conform to incompatible incompatible incompatible 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 )
Parts packaging code SOIC SOIC SOIC SOIC SOIC SOIC SOIC SOIC SOIC
package instruction SOP, SOP, SOP, SOP, SOP, SOP, SOP, SOP16,.25 SOP, SOP, SOP8,.25
Contacts 16 8 16 16 16 16 16 8 8
Manufacturer packaging code S S8 S S S S S S8 S8
Reach Compliance Code compliant not_compliant not_compliant compliant compliant compliant compliant compliant compliant
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Analog Integrated Circuits - Other Types SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER
control mode VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 8 V 8 V 8 V 8 V 8 V 8 V 8 V 8 V 8 V
Minimum input voltage 4 V 4 V 4 V 4 V 4 V 4 V 4 V 4 V 4 V
Nominal input voltage 5 V 5 V 5 V 5 V 5 V 5 V 5 V 5 V 5 V
JESD-30 code R-PDSO-G16 R-PDSO-G8 R-PDSO-G16 R-PDSO-G16 R-PDSO-G16 R-PDSO-G16 R-PDSO-G16 R-PDSO-G8 R-PDSO-G8
JESD-609 code e3 e0 e0 e0 e3 e3 e3 e3 e3
length 9.906 mm 4.9025 mm 9.906 mm 9.906 mm 9.906 mm 9.906 mm 9.9 mm 4.9025 mm 4.9 mm
Humidity sensitivity level 1 1 1 1 1 1 1 1 1
Number of functions 1 1 1 1 1 1 1 1 1
Number of terminals 16 8 16 16 16 16 16 8 8
Maximum operating temperature 70 °C 70 °C 70 °C 85 °C 85 °C 85 °C 70 °C 70 °C 70 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SOP SOP SOP SOP SOP SOP SOP SOP SOP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE
Peak Reflow Temperature (Celsius) 260 235 235 255 260 250 260 260 260
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1.752 mm 1.752 mm 1.752 mm 1.752 mm 1.752 mm 1.752 mm 1.75 mm 1.752 mm 1.75 mm
surface mount YES YES YES YES YES YES YES YES YES
Switch configuration PUSH-PULL PUSH-PULL PUSH-PULL PUSH-PULL PUSH-PULL PUSH-PULL PUSH-PULL PUSH-PULL PUSH-PULL
Maximum switching frequency 260 kHz 260 kHz 260 kHz 300 kHz 300 kHz 300 kHz 500 kHz 260 kHz 260 kHz
technology CMOS CMOS CMOS CMOS CMOS CMOS CMOS CMOS CMOS
Temperature level COMMERCIAL COMMERCIAL COMMERCIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL COMMERCIAL COMMERCIAL COMMERCIAL
Terminal surface Matte Tin (Sn) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn)
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal pitch 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature 30 20 20 40 30 NOT SPECIFIED 30 30 30
width 3.899 mm 3.899 mm 3.899 mm 3.899 mm 3.899 mm 3.899 mm 3.9 mm 3.899 mm 3.9 mm
Base Number Matches 1 1 1 1 1 1 1 1 1
Nominal output voltage 3.3 V 3.3 V 3.3 V - - - 3.3 V 3.3 V 3.3 V
Maximum supply current (Isup) 0.7 mA 0.7 mA 0.7 mA - - - 0.7 mA 0.7 mA 0.7 mA
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