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Analog Devices LTC3310S | Demoboard DC2629A

LTC3310S5V, 10A Synchronous Step DownSilent Switcher in 3mm x3mm LQFN

Overview

TopologyBuck Converter
Input voltage2.25-5.5 V
Switching frequency500-5000 kHz
Output 11.22 V / 10 A

Description

Demonstration Circuit DC2629A features the LTC®3310S10A, Low Voltage, Synchronous Step-Down Silent Switcher® 2 operating as a 2MHz 3.3V to 1.2V 10A buck regulator. The LTC3310S supports output voltages from 0.5V to VIN with operating frequencies from 500kHz up to 5MHz. The LTC3310S is a compact, ultralow emission, high efficiency, and high speed synchronous monolithic step-down switching regulator. The integrated bypass capacitors optimize all the fast current loops and make it easier to minimize EMI/EMC emissions by reducing layout sensitivity. Fast minimum on-time of 35ns enables high VIN to low VOUT conversion at high frequency

Features

  • Silent Switcher®2 Architecture: Ultralow EMI Emissions
  • High Efficiency: 4.5mΩ NMOS and 16mΩ PMOS
  • Wide Bandwidth, Fast Transient Response
  • Safely Tolerates Inductor Saturation in Overload
  • VIN Range: 2.25V to 5.5V
  • VOUT Range: 0.5V to VIN
  • VOUT Accuracy: ±1%
  • Peak Current Mode Control
  • 35ns Minimum On-Time
  • Programmable Frequency to 5MHz
  • Shutdown Current: 1µA
  • Precision 400mV Enable Threshold
  • Output Soft-Start with Voltage Tracking
  • Power Good Output
  • Die Temperature Monitor
  • Configurable for Paralleling Power Stages
  • Thermally-Enhanced 3mm × 3mm LQFN Package

Typical applications

  • Automotive
  • Servers, Telecom Power Supplies
  • Distributed DC Power Systems (POL)
  • FPGA, ASIC, μP Core Supplies

More information

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesZ @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR
(mA)
Z @ 1 GHz
(Ω)
H
(mm)
TypePins (Value)
(pcs)
RowsGenderPackaging Samples
74279226101SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-MPSB EMI Multilayer Power Suppression Bead 100 160 1100 MHz 8000 150 2.3 High Current
60800213421SPEC
3 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.00 mm Jumper with Test Point 3000 2 Jumper Bag
62000311121SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.00 mm THT Pin Header 2000 Straight 3 Single Pin Header Bag
Order Code Data­sheet Simu­lation
74279226101SPEC
60800213421SPEC
62000311121SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesZ @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR
(mA)
Z @ 1 GHz
(Ω)
H
(mm)
TypePins (Value)
(pcs)
RowsGenderPackaging Samples