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Overview
| Topology | Buck Converter |
| Input voltage | 3-4.3 V |
| Output 1 | 0.5 V / 12.5 A |
Description
The LTC®3311 is a very small, low noise, monolithicstep-down DC/DC converter capable of providing up to12.5A of output current from a 2.25V to 5.5V input supply.The device employs Silent Switcher 1 architecture withinternal hot loop bypass capacitors to achieve both lowEMI and high efficiency at switching frequencies as highas 5MHz. For systems with higher power requirements,multi-phasing parallel converters is readily implemented.
Features
- Pin Compatible with LTC3310/LTC3310S and LTC3311S
- Silent Switcher® 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% with Remote Sense
- Peak Current Mode Control
- Minimum On-Time: 35ns
- Programmable Frequency to 5MHz
- Precision 400mV Enable Threshold, 1μA in Shutdown
- Output Soft-Start with Voltage Tracking
- Power Good Output
- Die Temperature Monitor
- Configurable for Paralleling Power Stages in ForcedContinuous Mode
- Thermally-Enhanced 3mm × 3mm LQFN Package
- AEC-Q100 Qualified for Automotive Applications
Typical applications
- Servers, Telecom Power Supplies, Distributed DC Power Systems (POL)
- Automotive/Industrial/Communications
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | LR(µH) | IR(A) | ISAT,10%(A) | ISAT,30%(A) | RDC(mΩ) | fres(MHz) | Material | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-HCM SMT High Current Flat Wire Inductor, 0.055 µH, 0.055 µH | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCM SMT High Current Flat Wire Inductor | Inductance0.055 µH | Rated Inductance0.055 µH | Rated Current27 A | Saturation Current @ 10%23.6 A | Saturation Current @ 30%25.2 A | DC Resistance0.27 mΩ | Self Resonant Frequency123 MHz | MaterialMnZn |