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reference designLTC3309A | Demoboard DC2745A

Analog Devices LTC3309A | Demoboard DC2745A

LTC3309A 5V, 6A Synchronous Step-Down Silent Switcher in 2mm × 2mm LQFN

Overview

TopologyBuck Converter
Input voltage2.25-5.5 V
Switching frequency1000-3000 kHz
Output 11.22 V / 6 A

Description

Demonstration Circuit 2745A features the LTC®3309A 5V, 6A synchronous step-down silent switcher operating as a 2MHz, 3.3V to 1.2V 6A buck regulator. The LTC3309A supports adjustable output voltages from 0.5V to VIN, and operating frequencies from 1MHz up to 3MHz. The LTC3309A is a compact, ultralow emission, high efficiency, and high speed synchronous monolithic stepdown switching regulator. A minimum on-time of 22ns enables high VIN to low VOUT conversion ratios at high switching frequencies.

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Z @ 100 MHz(Ω)
Zmax(Ω)
Test Condition Zmax
IR(mA)
Z @ 1 GHz(Ω)
H(mm)
Type
Pins
Mount
L(mm)
Working Voltage(V (AC))
Operating Temperature
Packaging
SamplesAvailability & Sample
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74279226101
SPECWE-MPSB EMI Multilayer Power Suppression Bead, 100 Ω, 160 Ω
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Availability
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Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-MPSB EMI Multilayer Power Suppression Bead
Impedance @ 100 MHz100 Ω
Maximum Impedance160 Ω
Maximum Impedance1100 MHz 
Rated Current8000 mA
Impedance @ 1 GHz150 Ω
Height2.3 mm
TypeHigh Current 
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MountSMT 
Length4.5 mm
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Operating Temperature -55 °C up to +125 °C
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–Check availability
60800213421
SPECWR-PHD Jumper, –, –
Simu­lation–
Availability
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Downloads3 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Jumper
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–
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Rated Current3000 mA
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–
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Pins2 
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Working Voltage200 V (AC)
Operating Temperature -25 °C up to +105 °C
PackagingBag 
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62000311121
SPECWR-PHD Pin Header, –, –
Simu­lation–
Availability
–
Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header
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–
–
Rated Current2000 mA
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–
TypeStraight 
Pins3 
MountTHT 
Length6 mm
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
PackagingBag 
–Check availability
62000411121
SPECWR-PHD Pin Header, –, –
Simu­lation–
Availability
–
Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header
–
–
–
Rated Current2000 mA
–
–
TypeStraight 
Pins4 
MountTHT 
Length8 mm
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
PackagingBag 
–Check availability