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Overview
| Topology | Buck Converter |
| Input voltage | 2.25-5.5 V |
| Switching frequency | 2000-6000 kHz |
| Output 1 | 6 A |
Description
The LTC®3304 is a very small, high efficiency, lownoise, monolithic synchronous 6A step-down DC/DCconverter operating from a 2.25V to 5.5V input supply.Using constant frequency, peak current mode control,this regulator achieves fast transient response with small external components.The LTC3304 operates in forced continuous or pulseskipping mode for low noise, or in low-ripple Burst Mode operation for high efficiency at light loads, ideal for battery-powered systems. The IC regulates output voltages as low as 500mV. The adjustable version operates from 500mV to VIN with two additional external resistors. Other features include output overvoltage protection, short-circuit protection, thermal shutdown, clock synchronization,and up to 100% duty cycle operation for low dropout.The LTC3304 is available in a low profile 2mm × 2mmFCQFN package with exposed pad and side wettable flanks.
Features
- High Efficiency: 12mΩ NMOS, 34mΩ PMOS
- Peak Current Mode Control
- 27ns Minimum On-Time
- Wide Bandwidth, Fast Transient Response
- Low-Ripple Burst Mode® Operation with IQ of 80μA
- Up to 6MHz Operation
- Safely Tolerates Inductor Saturation in Overload
- VIN Range: 2.25V to 5.5V
- Fixed VOUT Range: 0.5V to 3.65V, FactoryProgrammed in 50mV Steps
- VOUT Accuracy: ±1% Overtemperature Range
- Precision 400mV Enable Threshold
- Shutdown Current: 1μA
- Power Good, Internal Compensation and Soft-Start
- Thermally Enhanced, 12-Pin, 2mm × 2mm, Flip Chip(FCQFN) Package with Side Wettable Flanks
- AEC-Q100 Qualified for Automotive Applications
Typical applications
- Automotive
- Industrial
- FPGA, ASIC, μP Core Supplies, Distributed DC Power Systems (POL)
- Optical Networking, Servers, Telecom, Communications
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT1(A) | ISAT2(A) | RDC max.(mΩ) | fres(MHz) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | VOP(V) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PMCI Power Molded Chip Inductor, 0.25 µH, 9.05 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PMCI Power Molded Chip Inductor | Inductance0.25 µH | Rated Current9.05 A | Saturation Current 18.5 A | Saturation Current 215.65 A | DC Resistance31 mΩ | Self Resonant Frequency150 MHz | Performance Rated Current9.05 A | Saturation Current @ 30%15.65 A | DC Resistance26 mΩ | – | MountSMT | ||||
 | WE-MAPI SMT Power Inductor, 0.33 µH, 5.5 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | Inductance0.33 µH | Rated Current5.5 A | – | – | DC Resistance17 mΩ | Self Resonant Frequency140 MHz | Performance Rated Current8.7 A | Saturation Current @ 30%10.5 A | DC Resistance14 mΩ | Operating Voltage80 V | MountSMT |