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Analog Devices LTC3311S | Demoboard DC3018A
3.3V to 1.2V at 12.5A, 2MHz Low EMI Buck Regulator in a 1.17cm2 Solution
Overview
| Topology | Buck Converter |
| Input voltage | 2.25-5.5 V |
| Switching frequency | 1800-2200 kHz |
| Output 1 | 1.22 V / 12.5 A |
Description
Demonstration Circuit 3018A features the LTC®3311S 12.5A, low voltage, synchronous step-down Silent Switcher® 2 operating as a 2MHz 3.3V to 1.2V 12.5A buck regulator. The LTC3311S supports output voltages from 0.5V to VIN with operating frequencies from 500kHz up to 5MHz. The LTC3311S 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.
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR (mA) | Z @ 1 GHz (Ω) | H (mm) | Type | Pins | Rows | Gender | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012205053 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | 33 nF | ±10% | 25 | 0402 | -55 °C up to +125 °C | 3.5 | 10 GΩ | X7R Class II | 1 | 0.5 | 0.25 | – | – | – | – | – | 0.5 | – | – | – | – | 7" Tape & Reel | ||
 | 74279226101 | SPEC | 8 files | WE-MPSB EMI Multilayer Power Suppression Bead | – | – | – | 1812 | -55 °C up to +125 °C | – | – | – | 4.5 | 3.2 | 0.46 | 100 | 160 | 1100 MHz | 8000 | 150 | 2.3 | High Current | – | – | – | – | ||
 | 60800213421 | SPEC | – | 3 files | WR-PHD 2.00 mm Jumper with Test Point | – | – | – | – | -25 °C up to +105 °C | – | 1000 MΩ | – | – | – | – | – | – | – | 3000 | – | – | – | 2 | – | Jumper | Bag | |
 | 62000311121 | SPEC | – | 6 files | WR-PHD 2.00 mm THT Pin Header | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 6 | – | – | – | – | – | 2000 | – | – | Straight | 3 | Single | Pin Header | Bag |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012205053 | SPEC | |
| 74279226101 | SPEC | |
| 60800213421 | SPEC | – |
| 62000311121 | SPEC | – |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR (mA) | Z @ 1 GHz (Ω) | H (mm) | Type | Pins | Rows | Gender | Packaging | Samples |
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