st5r33 STMicroelectronics, st5r33 Datasheet
st5r33
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st5r33 Summary of contents
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MICROPOWER VFM STEP-UP DC/DC CONVERTER VERY LOW SUPPLY CURRENT I REGULATED OUTPUT VOLTAGE I WIDE RANGE OF OUTPUT VOLTAGE I AVAILABLE (2.5V, 2.8V, 3.0V, 3.3V, 5.0V) OUTPUT VOLTAGE ACCURACY ±5% I OUTPUT CURRENT UP TO 100mA I LOW RIPPLE AND ...
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... Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. Table 2: Thermal Data Symbol R Thermal Resistance Junction-case thj-case Figure 2: Connection Diagram (top view) Table 3: Order Codes SOT23-5L ST5R25MTR ST5R28MTR ST5R30MTR ST5R33MTR ST5R50MTR 2/15 Parameter of 1°C over 25°C A Parameter Value Unit 5 ...
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OPERATION The ST5Rxx architecture is built around a VFM CONTROL logic core: switching frequency is set through a built in oscillator: T time is fixed (Typ. 5ms) while T ON output, a logic signal coming from the comparison made by ...
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ST5R00 SERIES Figure 5: Typical Demoboard Note: drawing not in scale. Table 4: Electrical Characteristics For ST5R25 (V = 1.5V 10mA OUT A otherwise notes, refer to the typical operating circuit.) Symbol Parameter V Output Voltage ...
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... Maximum oscillator Frequency OSC D Oscillator Duty Cycle ty ν Efficiency (1): The minimum input voltage for the IC start-up is strictly a function of the V Table 7: Electrical Characteristics For ST5R33 ( 10mA 25°C, unless otherwise specified. For external components value, unless IN OUT A otherwise notes, refer to the typical operating circuit.) ...
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ST5R00 SERIES TYPICAL PERFORMANCE CHARACTERISTICS (the following plots are referred to the typical application circuit and, unless otherwise noted Figure 6: Output Voltage vs Output Current Figure 7: Output Voltage vs Output Current Figure 8: Output Voltage vs ...
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Figure 12: Efficiency vs Output Current Figure 13: Efficiency vs Output Current Figure 14: Maximum Oscillator Frequency vs Temperature Figure 15: Maximum Oscillator Frequency vs Temperature Figure 16: Oscillator Duty Cycle (@ MAX Freq.) vs Temperature Figure 17: Oscillator Duty ...
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ST5R00 SERIES Figure 18: LX Switching Current Limit vs Temperature Figure 19: LX Switching Current Limit vs Temperature Figure 20: Start-up Voltage (V Temperature 8/15 Figure 21: Start-up Voltage (V Temperature Figure 22: Start-up Voltage (V Output Current - V ...
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Figure 24: Minimum Input Voltage vs Output Current Figure 25: Minimum Input Voltage vs Output Current Figure 26: Internal Switch R DSON Temperature Figure 27: Internal Switch R Temperature Figure 28: Hold-on Voltage vs Temperature vs Figure 29: Hold-on Voltage ...
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ST5R00 SERIES Figure 30: No Load Input Current vs Temperature APPLICATION INFORMATION PC LAYOUT AND GROUNDING HINTS The ST5R00 high frequency operation makes PC layout important for minimizing ground bounce and noise. Place external components as close as possible to ...
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DIODE SELECTION A Schottky diode with an high switching speed and a very low Forward Voltage (V may cause lost power as heat in the diode, with a decrease of the Efficiency. Moreover, since the Output Voltage pin is also ...
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ST5R00 SERIES DIM. MIN. A 0.90 A1 0.00 A2 0.90 b 0.35 C 0.09 D 2. 2.60 L 0.10 12/15 SOT23-5L MECHANICAL DATA mm. TYP MAX. 1.45 0.10 1.30 0.50 0.20 3.00 1.75 0.95 3.00 0.60 ...
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Tape & Reel SOT23-xL MECHANICAL DATA DIM. MIN 12 3.13 Bo 3.07 Ko 1.27 Po 3.9 P 3.9 mm. TYP MAX. 180 13.0 13.2 0.504 0.795 2.362 14.4 3.23 3.33 0.123 3.17 ...
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ST5R00 SERIES Table 9: Revision History Date Revision 14-Jun-2005 6 14/15 Description of Changes The SOT-89 package has been removed, mistake on Fig ==> LX, on Tables Output Noise Voltage ==> Efficiency. ...
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... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics ...