lm2750ldx-adj National Semiconductor Corporation, lm2750ldx-adj Datasheet
lm2750ldx-adj
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lm2750ldx-adj Summary of contents
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... Output current limiting and thermal shutdown circuitry protect both the LM2750 and connected devices in the event of output shorts or excessive current loads. Typical Application Circuit © 2005 National Semiconductor Corporation Features n Inductorless solution: Application requires only 3 small ceramic capacitors n Fixed 5.0V output and adjustable output voltage options ...
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... Ordering Option Information 5.0 LM2750LD-5.0 5.0 LM2750LDX-5.0 Adjustable LM2750LD-ADJ Adjustable LM2750LDX-ADJ 5.0 LM2750SD-5.0 5.0 LM2750SDX-5.0 Adjustable LM2750SD-ADJ Adjustable LM2750SDX-ADJ Note 1: LDA10A Package: 10 pad pullback LLP. SDA10A Package: 10 pad non-pullback LLP. For more details, refer to the package drawings in the Physical Dimensions section at the end of this datasheet. ...
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Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. V Pin: Voltage to Ground IN SD Pin: Voltage to GND Junction Temperature (T ) J-MAX-ABS Continuous Power Dissipation ...
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Electrical Characteristics Typical values and limits in standard typeface apply for T temperature range. Unless otherwise specified: 2.9V ≤ 1µ 1µF (Note 10). OUT Symbol Parameter Capacitor Requirements Required Input C IN ...
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Block Diagram 5 20035103 www.national.com ...
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Typical Performance Characteristics 2.2µ 1.0µ 2.2µF. Capacitors are low-ESR multi-layer ceramic capacitors (MLCC’s). FLY OUT Output Voltage vs. Output Current Output Voltage vs. Input Voltage Input Current vs. Output Current www.national.com Unless otherwise specified: V Output ...
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Typical Performance Characteristics 2.2µ 1.0µ 2.2µF. Capacitors are low-ESR multi-layer ceramic capacitors (MLCC’s). (Continued) FLY OUT Current Limit Behavior Output Voltage Ripple Turn-on Behavior Unless otherwise specified: V 20035121 Output Voltage Ripple, I 20035112 20035114 7 ...
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Operation Description OVERVIEW The LM2750 is a regulated switched capacitor doubler that, by combining the principles of switched-capacitor voltage boost and linear regulation, generates a regulated output from an extended Li-Ion input voltage range. A two-phase non-overlapping clock generated internally ...
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Operation Description increases to the point that there is zero voltage drop across the regulator, V’ equals the input voltage, and the output voltage is "on the edge" of regulation. Additional output current causes the output voltage to fall out ...
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Operation Description Application Information OUTPUT VOLTAGE RIPPLE The amount of voltage ripple on the output of the LM2750 is highly dependent on the application conditions: output cur- rent and the output capacitor, specifically. A simple approxi- mation of output ripple ...
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Application Information Manufacturer Contact Information TDK www.component.tdk.com AVX www.avx.com Murata www.murata.com Taiyo-Yuden www.t-yuden.com Vishay-Vitramon www.vishay.com INPUT CAPACITOR The input capacitor ( used as a reservoir of charge, IN helping to quickly transfer charge to the flying capacitor during ...
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Application Information FIGURE 3. LM2750 Model for Power Efficiency and Power Dissipation Calculations LAYOUT RECOMMENDATIONS A good board layout of the LM2750 circuit is required to achieve optimal assembly, electical, and thermal dissipation perfromance. Figure example of ...
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LM2750 LED Drive Application FIGURE 5. LM2750-5.0 LED Drive Application Circuit FIGURE 6. LM2750-ADJ LED Drive Application Circuit The LM2750 is an excellent part for driving white and blue LEDs for display backlighting and other general-purpose lighting functions. The circuits ...
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LM2750 LED Drive Application (Continued) PWM BRIGHTNESS/DIMMING CONTROL Brightness of the LEDs can be adjusted in an application by driving the SD pin of the LM2750 with a PWM signal. When the PWM signal is high, the LM2750 is ON, ...
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Datasheet Revision History REV. # DATE 1.0 1.1 09/24/2004 1.2 09/28/2005 1.3 12/21/2005 Physical Dimensions inches (millimeters) unless otherwise noted COMMENTS Production Release of LM2750 Datasheet Preliminary version with the following additions: • SDA10A Non-pullback package Added (pgs 2, 16) ...
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued) National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry ...