Cart 
Datasheet
- 0.5-A, 42V Step Down SWIFT DC/DC Converter with Eco-Mode
(PDF , 2791 KB) 02 Mar 2009 - View All Technical Documents
Design your power supply here
Please visit the WEBENCH® panel to the right and click the Open Design button
Sample & Buy
| Free Samples | Buy from Authorized Distributors | Part # | Status | Temp (oC) | Price | QTY | Package | Pins | Top Side Marking | Package QTY | Carrier | Distributor Inventory | TI 1k Lead Time | | TPS54040DGQ | ACTIVE | -40 to 150 | 1.38 | 1ku | MSOP-PowerPAD (DGQ) | 10 | View | 80 | TUBE | >5K | 1k quantity lead time: In stock | Not Available | | TPS54040DGQR | ACTIVE | -40 to 150 | 1.15 | 1ku | MSOP-PowerPAD (DGQ) | 10 | View | 2500 | LARGE T&R | >5K | 1k quantity lead time: In stock |
|---|
* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.
Related Products
| Part # | Name | Product Family | Comments |
|---|---|---|---|
| TPS54040A | 3.5V to 42V Input, 0.5A Step-Down Converter with Eco-Mode | CONVERTER (INTEGRATED SWITCH) - STEP-DOWN (BUCK) CONVERTER | “A” version offers tighter Enable threshold and enhanced (2KV) HBM ESD – Recommended for new Designs |
Technical Documents
Datasheet (1)
| Title | Type | Size (KB) | Date | Views |
|---|---|---|---|---|
| 2791 | 02 Mar 2009 |
Application Notes (3)
| Title | Abstract | Type | Size (KB) | Date | Views |
|---|---|---|---|---|---|
| 55 | 17 Apr 2013 | 125 | |||
| 472 | 26 Oct 2012 | 2,931 | |||
| 249 | 10 Oct 2012 | 1,160 |
User Guides (2)
| Title | Abstract | Type | Size (KB) | Date | Views |
|---|---|---|---|---|---|
| 139 | 21 Nov 2011 | 293 | |||
| 624 | 20 Mar 2009 | 827 |
Selection & Solution Guides (5)
| Title | Type | Size (KB) | Date | Views |
|---|---|---|---|---|
| 58 | 12 Apr 2012 | 1,306 | ||
| 302 | 28 Mar 2012 | 4,000 | ||
| 1595 | 14 Mar 2012 | 1,592 | ||
| 184 | 22 Feb 2012 | 1,849 | ||
| 145 | 31 Jan 2012 | 997 |
Tools & Software
Circuit Design & Simulation
Models (3)
| Title | Category | Type | Size (KB) | Date | Views |
|---|---|---|---|---|---|
| TPS54040 PSpice Transient Model | PSpice Model | ZIP | 66 KB | 16 Jul 2009 | 254 views |
| TPS54040 TINA-TI Transient Reference Design | TINA-TI Reference Design | TSC | 482 KB | 17 Nov 2010 | 122 views |
| TPS54040 TINA-TI Transient Spice Model | TINA-TI Spice Model | ZIP | 68 KB | 17 Nov 2010 | 224 views |
Design Kits & Evaluation Modules (1)
| Name | Part# | Type |
|---|---|---|
| TPS54040 42V Input, 5V Output, 0.5A Evaluation Module | TPS54040EVM-456 | Evaluation Modules & Boards |
Software (1)
|
TPS54x40 and TPS54x60 Buck Design Spreadsheet (Rev. A) (ZIP 49 KB ) 515 views, 12 Feb 2013 |
Development Tools (3)
| Name | Part# | Type |
|---|---|---|
| Inverting Power Supply Calculator for SWIFT DC/DC with Integrated FETs | SWIFTINV-CALC | Calculation Tools |
| Positive and Negative Output Voltage Split Rail Calculator for SWIFT DC/DC Converters | SWIFTPOSNEG-CALC | Calculation Tools |
| Power Stage Designer of Most Commonly Used Switchmode Power Supplies | POWERSTAGE-DESIGNER | Circuit Design & Simulation |
Reference Designs (7)
| Description | Part # | Company |
|---|---|---|
| 3.3V @ 0.3A Buck Converter | PMP8538 | Texas Instruments |
| 5.0V @ 70mA Buck Converter | PMP7220 | Texas Instruments |
| Buck for wireless charging (5V @ 100mA) | PMP5185 | Texas Instruments |
| Inverting buck-boost using TPS54040 to generate -5V@100mA | PMP5691 | Texas Instruments |
| Sync Buck (1.1V at 110A) | PMP5096 | Texas Instruments |
| Sync Buck(x4), Buck (1V @ 25A) | PMP6000.1 | Texas Instruments |
| TPS54160 Universal Board | PMP4743 | Texas Instruments |
Support & Community
TI E2E™ Community
As a member of my.TI you can join the TI E2E™ Community where you can ask questions, share ideas and collaborate with fellow engineers and TI experts Contents are provided "AS IS" by the respective TI and Community contributors and do not constitute TI specifications. See Terms of Use. |
||
|
||
Training & Events
| Name | Type | Available During |
|---|---|---|
| Multi-Day PFC Design Workshop (Analog & Digital) sponsored by Biricha Digital Power Ltd. | In-Person | 15 Mar 2014 - 22 Mar 2014 |
| In-depth PFC Design Workshop | In-Person | 12 Nov 2013 - 14 Nov 2013 |
| Digital Power Multi-Day Workshop | In-Person | 05 Nov 2013 - 07 Nov 2013 |
| Optimizing Efficiency of Switching Mode Chargers | Recorded Content | On Demand |
| Single Cell Gauging 101 - Part 2: Classic Fuel Gauging Approaches | Recorded Content | On Demand |
See More Training & Events