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TPS60241DGKTG4 Datasheet(PDF) 9 Page - Texas Instruments |
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TPS60241DGKTG4 Datasheet(HTML) 9 Page - Texas Instruments |
9 / 22 page TPS60241 VIN C1 1 F C2 1 F C1+ C1 – GND VOUT C2+ C2 – EN CI 1 F GND 3.3 V 5 V CO 1 F VCO VCC GND TPS60240, TPS60241, TPS60242, TPS60243 www.ti.com SLVS372C – JUNE 2001 – REVISED OCTOBER 2015 8 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 8.1 Application Information The TPS6024x is a switched capacitor voltage converter for VCO and PLL applications providing low noise conversion and tight tolerances. It supports regulated output voltages of 2.7 V, 3 V and 3.3 V from a 1.8-V to 5.5- V input voltage range. The TPS60241 generates 5-V output voltage from an 2.7-V to 5.5-V input voltage range. 8.2 Typical Applications 8.2.1 5-V Low-Noise VCO Supply from 3.3-V Input Figure 4. 5-V Low-Noise VCO Supply from 3.3-V Input 8.2.1.1 Design Requirements The complete charge pump circuitry requires no inductors and only four small ceramic capacitors. 8.2.1.2 Detailed Design Procedure 8.2.1.2.1 Output Voltage Ripple The output voltage ripple depends on the capacitors used. Table 1 shows the dependence between output voltage ripple and capacitor selection. Table 1. Output Voltage Ripple and Capacitor Selection(1) OUTPUT VOLTAGE RIPPLE CI CO C1 C2 [µVrms] 1 µF 1 µF 1 µF 1 µF 288 2.2 µF 2.2 µF 1 µF 1 µF 212 4.7 µF 4.7 µF 1 µF 1 µF 183 4.7 µF 1 µF 1 µF 1 µF 272 1 µF 4.7 µF 1 µF 1 µF 185 (1) NOTE: VIN = 3.3 V, VOUT = 5 V, RL = 500 Ω, TA = 25°C Copyright © 2001–2015, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: TPS60240 TPS60241 TPS60242 TPS60243 |
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