gs-r24fp STMicroelectronics, gs-r24fp Datasheet
gs-r24fp
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gs-r24fp Summary of contents
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... No heatsink required ■ Operating temperature range -25 °C ÷ 85 °C Description The GS-R24FP series is a family of high efficiency step down switching voltage regulator, designed to replace linear regulators. Based on ST L5973A device, this non isolated family of regulators are suitable for the full ...
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... Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.1 Input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.2 Reference voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.3 Inhibit function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.4 Multiple units synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.5 Current limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.6 Thermal shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.7 Output voltage programming (GS-R24FP0001.8 only 4.8 Loop compensation (GS-R24FP0001.8 only 4.9 Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5 Additional features and protections . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.1 Output overvoltage protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6 Ordering scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2/15 GS-R24FP ...
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... GS-R24FP 1 Pin settings 1.1 Pin connection and mechanical data (dimensions in mm) Figure 1. Pin connection GS-R24FVxxx1.8 Figure 2. Pin connection GS-R24FSxxx1.8 Pin settings 3/15 ...
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... Input + DC input voltage Input + DC input voltage Input/output Return for input/output voltage source GND Input/output Return for input/output voltage source GND V Regulated power output out V Regulated power output out Feedback input, available on adjustable device and on request for FB additional compensation GS-R24FP Description ...
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... GS-R24FP 2 Maximum ratings 2.1 Absolute maximum ratings Table 3. Absolute maximum ratings Symbol V DC input voltage I I Maximum output current out V INH 1 V Sync 2.2 Thermal data Table 4. Thermal data Symbol T Storage temperature range STG T Operating ambient temperature OP Parameter Parameter Maximum ratings ...
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... ° ° ° ° ° ° ° ° Value 1.80 1.80 1.75 1.70 1.65 1.50 1.35 1.25 1.10 0.90 1.80 1.75 1.70 1.60 1.45 1.30 1.20 1.05 0.85 0.60 1.75 1.60 1.45 1.35 1.20 1. °C 0.90 0.75 0.50 0.30 GS-R24FP Unit ...
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... INH threshold voltage V Feedback voltage FB Test condition for GS-R24FPyyy1 1 1 ÷ for GS-R24FPyyy1.8 ÷ > 2 inh 1 ÷ ÷ ...
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... For this reason the switching frequency is also reduced to keep the inductor current within its maximum threshold limit. The frequency depends on the feedback voltage. As the feedback voltage decreases (due to the reduced duty cycle), the switching frequency decrease too. 8/ disable the device. i Figure 6). GS-R24FP ...
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... An hysteresis of approximately 20 °C avoids that the devices turns ON and OFF continuously. 4.7 Output voltage programming (GS-R24FP0001.8 only) The GS-R24FP0001.8 output voltage is 5.54 V ± reduce this value connect a resistor between pin 10 (FB) and pin 9 (V The resistor must be located very close to the proper pins, to minimize the injected noise (see Figure 4) ...
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... Ramp down rate Time from 25 °C to peak temperature Figure 3. Soldering 10/ SMAX P Preheat: MIN) S MAX) S MAX GS-R24FP PB free assembly 3 °C / sec max 150 °C 200 °C 60 – 100 sec 217 °C 40 – 70 sec 240 + 0 °C 10 – 20 sec 6 °C / sec 8 minutes max ...
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... GS-R24FP 5 Additional features and protections 5.1 Output overvoltage protection The overvoltage protection, OVP, is realized by using an internal comparator, whose input is connected to the feedback. It turns off the power stage when the OVP threshold is reached. This threshold is typically 30 % higher than the feedback voltage. Figure 4. Output voltage programming ...
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... Additional features and protections Figure 7. PCB footprint for GS-R24FSxxx1.8 (dimensions in mm) 12/15 GS-R24FP ...
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... GS-R24FP 6 Ordering scheme Table 8. Ordering information scheme Input voltage Package V = Vertical S = SMD Output voltage 018 = 1.8 V 025 = 2.5 V 033 = 3.3 V 050 = 5.0 V ÷ 000 = 1.235 5.5 V Output current 1.8 = 1.8 A GS- R12 FV Ordering scheme 018 1.8 13/15 ...
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... Revision history 7 Revision history Table 9. Document revision history Date 13-Oct-2006 27-Feb-2008 14/15 Revision 1 Initial release 2 Added: Section 4.9: Soldering on page 10 GS-R24FP Changes ...
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... GS-R24FP 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. ...