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Texas Instruments LM26420 | Demoboard TIDA-00804
Automotive i.MX6 Quad Core Processor Power Reference Design
Overview
| Topology | Buck Converter |
| Input voltage | 3.3-5 V |
| Switching frequency | 1850-2650 kHz |
| Output 1 | 1.8 V / 1 A |
| Output 2 | 3.3 V / 1.5 A |
| IC revision | E2 |
Description
The TIDA-00804 reference design is a low-cost discrete power solution for the i.MX6Q quad core application processor. All the DCDC regulators operate at frequencies above the AM radio broadcast band to avoid interference with the radio and to provide a small solution size due to smaller filter components. The first stage DC-DC converter can support a voltage input range of 6V to 42V, allowing the design to support start-stop operation as well as load dump. The second stage DC-DC converters provide all the necessary power rails to power the i.MX6Q. No power sequencer is necessary for this design. The PWB is a 4 layer board with 2 oz. copper to provide good power dissipation at 85 C ambient.
Features
- Wide input voltage range: off battery 6V to 42V power supply to support start-stop system and load dump
- The DC-DC regulators all operate above 1.8 MHz to avoid AM band interference
- Very small form factor: 75mm x 58mm circuit board dimensions
- No power sequencer necessary
- Less than 5% ripple on all power rails
Typical applications
- Automotive Instrument Cluster/ Automotive Infotainment Head Unit
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC(mΩ) | fres(MHz) | Material | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-HCI SMT Flat Wire High Current Inductor, 0.95 µH, 14.4 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance0.95 µH | Performance Rated Current14.4 A | Saturation Current @ 10%5 A | Saturation Current @ 30%13 A | DC Resistance6.2 mΩ | Self Resonant Frequency90 MHz | MaterialSuperflux | ||||
| WE-HCI SMT Flat Wire High Current Inductor, 1.5 µH, 9.6 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance1.5 µH | Performance Rated Current9.6 A | Saturation Current @ 10%4.75 A | Saturation Current @ 30%12 A | DC Resistance12.7 mΩ | Self Resonant Frequency80 MHz | MaterialSuperflux | ||||
| WE-HCI SMT Flat Wire High Current Inductor, 2 µH, 8.7 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance2 µH | Performance Rated Current8.7 A | Saturation Current @ 10%3 A | Saturation Current @ 30%9 A | DC Resistance14.2 mΩ | Self Resonant Frequency58 MHz | MaterialSuperflux | ||||
| WE-HCI SMT Flat Wire High Current Inductor, 2.2 µH, 10.2 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance2.2 µH | Performance Rated Current10.2 A | Saturation Current @ 10%5.6 A | Saturation Current @ 30%13 A | DC Resistance11.4 mΩ | Self Resonant Frequency52 MHz | MaterialSuperflux |