STOD2540PMR STMicroelectronics, STOD2540PMR Datasheet
STOD2540PMR
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STOD2540PMR Summary of contents
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Features ■ Inductor switches boost controller ■ PFM mode control ■ High efficiency over wide range of load ( mA) ■ Integrated load disconnect switch ■ Over voltage protection with automatic restart ■ Soft start with adjustable ...
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Contents Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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STOD2540 1 Diagram Figure 1. Block diagram Doc ID 12204 Rev 10 Diagram 3/20 ...
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Pin configuration 2 Pin configuration Figure 2. Pin connections (top through view) Table 2. Pin description Pin n° Symbol 1 V Supply voltage Peak inductor current adjust SET 3 AGND Analog ground 4 FB Feedback for the ...
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STOD2540 3 Maximum ratings Table 3. Absolute maximum ratings Symbol Breakdown voltage at OUT and SW pin Supply voltage range pin SET SET EN Enable pin V ESD ratings, HBM MIL ...
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Electrical characteristics 4 Electrical characteristics ° ° kΩ Typ. values @ 25 °C, unless otherwise specified Table 5. Electrical characteristics Symbol Parameter V Input ...
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STOD2540 Table 5. Electrical characteristics (continued) Symbol Parameter Enable input logic low V EN Enable input logic high Line_V Line regulation Load_V Line regulation Guaranteed by design. Test condition Disable Low V IL ...
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Functional description 5 Functional description 5.1 Boost controller STOD2540 is a boost converter operating in PFM (pulsed frequency modulation) mode. The converter monitors the output voltage through the bridge resistor divider R when the feedback voltage falls below the reference ...
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STOD2540 5.5 Load isolation switch When the device is in shutdown mode current path always exists between the power source and the load; increasing the standby consumption. A high side switch LDS isolates the load from the source ...
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Typical application 6 Typical application Figure 3. Basic connection Table 6. External components (see Symbol Parameter D Boost schottky diode R Feedback resistor 1 R Feedback resistor 2 R Peak current limit adjust SET C Input ceramic type low ESR ...
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STOD2540 6.1 Demonstration board Figure 4. Suggested demonstration board schematic (top layer view) Doc ID 12204 Rev 10 Typical application 11/20 ...
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Typical performance characteristics 7 Typical performance characteristics ° ° kΩ Typ. values @ 25 °C, unless otherwise specified Figure 5. Efficiency vs. output current ...
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STOD2540 Figure 11. V vs. temperature OVP Figure 13. I vs. input voltage LIM_MAX Figure 15. I vs. R LIM_MAX SET Typical performance characteristics Figure 12. V RIPPLE Figure 14. I LIM_MAX Figure 16. I vs. temperature Q Doc ID ...
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Typical performance characteristics Figure 17. t vs. temperature ON_MAX Figure 19. Line V vs. temperature FB 14/20 Figure 18. t OFF_MIN Figure 20. Load V Doc ID 12204 Rev 10 STOD2540 vs. temperature vs. temperature FB ...
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STOD2540 8 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ...
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Package mechanical data Figure 21. Drawing dimension QFN8 ( mm) 16/20 Doc ID 12204 Rev 10 STOD2540 8057023_B ...
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STOD2540 Tape & reel QFNxx/DFNxx (3x3) mechanical data Dim. Min 12 mm. Typ. Max. Min. 180 13.2 0.504 0.795 2.362 14.4 3.3 3.3 1 Doc ID ...
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Package mechanical data Figure 22. QFN8 (3x3) footprint recommended data 18/20 Doc ID 12204 Rev 10 STOD2540 ...
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STOD2540 9 Revision history Table 8. Document revision history Date Revision 22-Mar-2006 1 03-Apr-2006 2 08-Jun-2006 3 23-Jun-2006 4 11-Sep-2006 5 27-Feb-2009 6 03-Mar-2009 7 11-Mar-2009 8 25-Nov-2009 9 01-Jul-2010 10 Initial release. Add fig. 2 demonstration board on page ...
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... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...