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Texas Instruments LM26400YSDE | Demoboard LM26400YEVAL
Dual 2A, 500kHz Wide Input Range Buck Regulator
Overview
| Topology | Buck Converter |
| Input voltage | 5-20 V |
| Output 1 | 2.5 V / 2 A |
| Output 2 | 1.2 V / 2 A |
| IC revision | B |
Description
The LM26400Y demonstration board was designed to provide two 2A outputs at 1.2V and 2.5V respectively. It uses the ETSSOP package option of the LM26400Y for easier probing. The design emphasizes on the compactness of the LM26400Y PCB layout and is thermally optimized. The total solution size is about 20mm by 30mm. The board supports the conversion from an input voltage ranging from 5V to 20V down to output voltages of 1.2V and 2.5V. With the availability of a separate 5V rail and a couple of small bootstrap diodes, the board also supports an input voltage down to 3.3V with 2A output currents. The EN pins are pulled up to VIN by default for easy evaluation but can also be easily controlled by external logic.
Features
Input voltage range of 3-20VDual 2A outputOutput voltage down to 0.6VInternal compensation500kHz PWM frequencySeparate enable pinsSeparate soft start pinsFrequency foldback protection175mΩ NMOS switchIntegrated bootstrap diodesOver-current protectionETSSOP and LLP packagesThermal shutdown
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Application | Interface Type | Type | Gender | Pins | Mount | Working Voltage (V (AC)) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 744325550 | SPEC | 8 files | WE-HCI SMT Flat Wire High Current Inductor | 5.5 | 12 | 4.5 | 12 | 10.3 | 30 | Superflux | – | – | – | – | 2 | SMT | – | – | ||
 | 651305142821 | SPEC | – | 6 files | WR-COM Mini USB 2.0 Type AB SMT Horizontal 5 Contacts | – | – | – | – | – | – | – | Mini USB | Type AB | Horizontal | Receptacle | 5 | SMT | 30 | Tape and Reel |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 744325550 | SPEC | |
| 651305142821 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Application | Interface Type | Type | Gender | Pins | Mount | Working Voltage (V (AC)) | Packaging | Samples |
|---|