ST1S09APU STMICROELECTRONICS [STMicroelectronics], ST1S09APU Datasheet
ST1S09APU
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ST1S09APU Summary of contents
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... E.S.R. SMD ceramic capacitors. The device is thermally protected and the output current limited to prevent damages due to accidental short circuit. The ST1S09 is available in the DFN6 3x3mm package. Packaging ST1S09PUR ST1S09APUR ST1S09IPUR Rev. 2 ST1S09 Package DFN6D (3x3 mm) DFN6D (3x3 mm) ...
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Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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Diagram Figure 1. Schematic diagram (*) Only for ST1S09IPU (**) Only for ST1S09PU 3/18 ...
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Pin configuration Figure 2. Pin connections (top view) ST1S09 Table 2. Pin description Pin N° Symbol GND IN_SW 5 V IN_A 6 INH/PG/NC Exposed GND Pad 4/18 ST1S09A Name and function Feedback ...
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Maximum ratings Table 3. Absolute maximum ratings Symbol V Positive power supply voltage IN_SW V Positive power supply voltage IN_A V Inhibit voltage (I version) INH SWITCH Voltage Max. voltage of output pin V Feedback voltage FB PG Power ...
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Electrical characteristics Table 6. Electrical characteristics for ST1S09PU Refer 5V, V IN_SW IN_A (unless otherwise specified. Typical values are referred to 25°C) Symbol Parameter FB Feedback voltage I V pin bias current FB FB ...
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Table 7. Electrical characteristics for ST1S09IPU Refer IN_SW IN_A T = -30 to 125°C (unless otherwise specified. Typical values are referred to 25°C) J Symbol Parameter FB Feedback voltage I V pin bias current ...
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Typical performance characteristics (L = 3.3µ 4.7µ Figure 3. Voltage feedback vs temperature 840 840 V V =5V, I =5V, I =10mA =10mA 830 830 820 820 810 810 800 800 ...
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Figure 9. Line regulation vs temperature 1 1 0.8 0 @1.2V @1. from 2.7V to 5.5V from 2.7V to 5.5V 0.6 0.6 0.4 0.4 0.2 0 ...
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Figure 15. Efficiency vs temperature 100 100 V V =3.3V =3. =5V, I =5V, I =100mA =100mA I ...
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Typical application Figure 21. Application circuits Figure 22. Application circuits 11/18 ...
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Application information The ST1S09 is an adjustable current mode PWM step-down DC/DC converter with internal 2A power switch, packaged in a DFN6 3x3mm. The device is a complete 2A switching regulator with its internal compensation eliminating the need for ...
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Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner ...
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Dim. Min 0.23 D 2.90 D2 2.23 E 2. 0.30 14/18 DFN6D (3x3) Mechanical Data mm. Typ. Max. 1.00 0.02 0.05 0.20 0.45 3.00 3.10 2.50 3.00 3.10 1.75 0.95 ...
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Figure 23. DFN6 (3x3) Footprint Recommended Data 15/18 ...
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Tape & Reel QFNxx/DFNxx (3x3) Mechanical Data Dim. Min 12 16/18 mm. Typ. Max. Min. 330 13.2 0.504 0.795 2.362 18.4 3.3 3.3 1 inch. Typ. ...
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Revision history Table 8. Revision history Date Revision 18-Jun-2007 1 05-Jul-2007 2 Changes First Issue. Removed incorrect watermark. 17/18 ...
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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 ...