SP6669AEK-L/TR Exar Corporation, SP6669AEK-L/TR Datasheet
SP6669AEK-L/TR
Specifications of SP6669AEK-L/TR
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SP6669AEK-L/TR Summary of contents
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... The SP6669 is available in an adjustable output voltage version, using an external resistor divider circuit, as well as fixed output voltage versions of 1.2V, 1.5V and 1.8V. The SP6669 is available pin SOT-23 package. Rev G – 12/02/2008 SP6669 1.5MHz 0.6A Sync. Step Down Converter © 2008 Exar Corporation ...
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... EN 2 GND VIN VFB 5 VOUT Rev G – 12/02/2008 SP6669 1.5MHz 0.6A Sync. Step Down Converter © 2008 Exar Corporation Fig.1: SP6669 Block Diagram Description Enable Pin. Do not leave the pin floating. V <0.4V: Shutdown mode EN V >1.2V: Device enabled EN Ground Signal Pin. ...
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... Note 1: The Switch Current Limit is related to the Duty Cycle. Please refer to figure 15 for details. Note 2: Dynamic quiescent current is higher due to the gate charge being delivered at the switching frequency. Rev G – 12/02/2008 SP6669 1.5MHz 0.6A Sync. Step Down Converter © 2008 Exar Corporation ELECTRICAL CHARACTERISTICS Operating Junction Temp. (Note 1)......... 125ºC Storage Temp ...
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... Fig. 2: Efficiency vs Output Current (mA) Fig. 4: Efficiency vs Output Current (mA) Fig. 6: Output Voltage vs Load Current Rev G – 12/02/2008 SP6669 1.5MHz 0.6A Sync. Step Down Converter © 2008 Exar Corporation ELECTRICAL CHARACTERISTICS Fig. 3: Efficiency vs Output Current (mA) Fig. 5: Efficiency vs Output Current (mA) Fig. 7: Reference Voltage vs Temperature ...
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... Fig Temperature DS(ON) Fig. 10: Dynamic Supply Current vs Temperature Fig. 12: Oscillator Frequency vs Temperature Rev G – 12/02/2008 SP6669 1.5MHz 0.6A Sync. Step Down Converter © 2008 Exar Corporation ELECTRICAL CHARACTERISTICS Fig Input Voltage DS(ON) Fig. 11: Dynamic Supply Current vs Supply Voltage Fig. 13: Oscillator Frequency vs Supply Voltage ...
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... Fig. 14: Discontinuous Operation Fig. 16: Load Step Fig. 17: Load Step Rev G – 12/02/2008 SP6669 1.5MHz 0.6A Sync. Step Down Converter © 2008 Exar Corporation ELECTRICAL CHARACTERISTICS Fig. 15: Start-up from Shutdown Fig. 17: Load Step Fig. 18: Load Step 6/10 ...
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... V ≅ OUT I I Eq. 2: RMS OMAX Rev G – 12/02/2008 SP6669 1.5MHz 0.6A Sync. Step Down Converter © 2008 Exar Corporation The ESR rating of the capacitor is an important parameter to select C of the output ripple V Eq. 3: Higher capacitors are now available in smaller sizes. These capacitors have high ripple ...
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... Fig.20: V Ripple Voltage OUT for V decreasing close Rev G – 12/02/2008 SP6669 1.5MHz 0.6A Sync. Step Down Converter © 2008 Exar Corporation Design Example In a single Lithium-Ion battery powered and application, the V 4.2V. The desired output voltage is 1.8V. and C The ...
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... SOT23-5L Unit: mm Rev G – 12/02/2008 SP6669 1.5MHz 0.6A Sync. Step Down Converter © 2008 Exar Corporation 9/10 PACKAGE ...
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... Adjustable Output Voltage Version Voltage Part Number Option SP6669AEK-L/TRR3 Adjustable “WW” = Work Week Fixed Output Voltage Version Voltage Part Number Option SP6669BEK-L/TRR3 1.2V SP6669CEK-L/TRR3 1.5V SP6669DEK-L/TRR3 1.8V “WW” = Work Week Note that the SP6669 series is packaged in Tape and Reel with a reverse part orientation as ...