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LTC1430CS#PBF

Description
DC/DC Cntrlr Single-OUT Step Down 500kHz 16-Pin SOIC N Tube
CategoryPower/power management    The power supply circuit   
File Size213KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
Environmental Compliance
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LTC1430CS#PBF Overview

DC/DC Cntrlr Single-OUT Step Down 500kHz 16-Pin SOIC N Tube

LTC1430CS#PBF Parametric

Parameter NameAttribute value
Brand NameAnalog Devices Inc
Is it lead-free?Contains lead
Is it Rohs certified?conform to
MakerADI
package instructionSOP, SOP16,.25
Contacts16
Manufacturer packaging code05-08-1610 (S16)
Reach Compliance Codecompliant
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
length9.9 mm
Humidity sensitivity level1
Number of functions1
Number of terminals16
Maximum operating temperature70 °C
Minimum operating temperature
Maximum output current10 A
Nominal output voltage3.3 V
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP16,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.75 mm
Maximum supply current (Isup)0.7 mA
Nominal supply voltage (Vsup)5 V
surface mountYES
Switch configurationPUSH-PULL
Maximum switching frequency500 kHz
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width3.9 mm
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 DC/DC Cntrlr Single-OUT Step Down 500kHz 16-Pin SOIC N Tube DC/DC Cntrlr Single-OUT Step Down 500kHz 16-Pin SOIC N T/R DC/DC Cntrlr Single-OUT Step Down 500kHz 8-Pin SOIC N Tube DC/DC Cntrlr Single-OUT Step Down 500kHz 8-Pin SOIC N T/R DC/DC Cntrlr Single-OUT Step Down 500kHz 16-Pin SOIC N Tube DC/DC Cntrlr Single-OUT Step Down 500kHz 16-Pin SOIC N T/R
Brand Name Analog Devices Inc Analog Devices Inc Analog Devices Inc Analog Devices Inc Analog Devices Inc Analog Devices Inc
Is it lead-free? Contains lead Contains lead Contains lead Contains lead Contains lead Contains lead
Is it Rohs certified? conform to conform to conform to conform to conform to conform to
Maker ADI ADI ADI ADI ADI ADI
package instruction SOP, SOP16,.25 SOP, SOP, SOP, SOP, SOP, SOP16,.25
Contacts 16 16 8 8 16 16
Manufacturer packaging code 05-08-1610 (S16) 05-08-1610 (S16) 05-08-1610 (S8) 05-08-1610 (S8) 05-08-1610 (S16) 05-08-1610 (S16)
Reach Compliance Code compliant compliant compliant compliant compliant compliant
Analog Integrated Circuits - Other Types 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
Control Technology 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
Minimum input voltage 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
JESD-30 code R-PDSO-G16 R-PDSO-G16 R-PDSO-G8 R-PDSO-G8 R-PDSO-G16 R-PDSO-G16
JESD-609 code e3 e3 e3 e3 e3 e3
length 9.9 mm 9.906 mm 4.9 mm 4.9025 mm 9.906 mm 9.9 mm
Humidity sensitivity level 1 1 1 1 1 1
Number of functions 1 1 1 1 1 1
Number of terminals 16 16 8 8 16 16
Maximum operating temperature 70 °C 70 °C 70 °C 70 °C 85 °C 85 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SOP SOP SOP SOP SOP SOP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE
Peak Reflow Temperature (Celsius) 260 260 260 260 260 250
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1.75 mm 1.752 mm 1.75 mm 1.752 mm 1.752 mm 1.75 mm
surface mount YES YES YES YES YES YES
Switch configuration PUSH-PULL PUSH-PULL PUSH-PULL PUSH-PULL PUSH-PULL PUSH-PULL
Maximum switching frequency 500 kHz 260 kHz 260 kHz 260 kHz 300 kHz 500 kHz
technology CMOS CMOS CMOS CMOS CMOS CMOS
Temperature level COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL INDUSTRIAL INDUSTRIAL
Terminal surface Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) MATTE TIN Matte Tin (Sn)
Terminal form 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
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature 30 30 30 30 30 NOT SPECIFIED
width 3.9 mm 3.899 mm 3.9 mm 3.899 mm 3.899 mm 3.9 mm
Nominal output voltage 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
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