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Analog Devices LTC3310S | Demoboard DC2629A
LTC3310S5V, 10A Synchronous Step DownSilent Switcher in 3mm x3mm LQFN
Overview
| Topology | Buck Converter |
| Input voltage | 2.25-5.5 V |
| Switching frequency | 500-5000 kHz |
| Output 1 | 1.22 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 series | 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 | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-MPSB EMI Multilayer Power Suppression Bead, 100 Ω, 160 Ω | Status Activei| Production 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 | – | MountSMT | Length4.5 mm | – | Operating Temperature -55 °C up to +125 °C | ||||
 | WR-PHD Jumper, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Jumper | – | – | – | Rated Current3000 mA | – | – | – | Pins2 | – | – | Working Voltage200 V (AC) | Operating Temperature -25 °C up to +105 °C | |||
 | WR-PHD Pin Header, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header | – | – | – | Rated Current2000 mA | – | – | TypeStraight | Pins3 | MountTHT | Length6 mm | Working Voltage200 V (AC) | Operating Temperature -40 °C up to +105 °C |