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7 Product Folder Links: LM9076Q LM9076Q SNVS713B CAPRIL 2011CREVISED MARCH

2013 www.ti.com Typical Performance Characteristics (continued) Ground Pin Current vs Load Current Ground Pin Current vs Load Current Figure 11. Figure 12. Output Voltage vs Input Voltage Output Voltage vs Input Voltage Figure 13. Figure 14. Output Voltage vs Junction Temperature Output Voltage vs Junction Temperature Figure 15. Figure 16.

8 Submit Documentation Feedback Copyright ? 2011C2013, Texas Instruments Incorporated Product Folder Links: LM9076Q LM9076Q www.ti.com SNVS713B CAPRIL 2011CREVISED MARCH

2013 Typical Performance Characteristics (continued) Dropout Voltage vs Load Current Load Transient Response Figure 17. Figure 18. Load Transient Response Line Transient Response Figure 19. Figure 20. Line Transient Response Delayed Reset Time vs Vin Normalized to VIN = 14V Figure 21. Figure 22. Copyright ? 2011C2013, Texas Instruments Incorporated Submit Documentation Feedback

9 Product Folder Links: LM9076Q LM9076Q SNVS713B CAPRIL 2011CREVISED MARCH

2013 www.ti.com Typical Performance Characteristics (continued) Ripple Rejection Figure 23.

10 Submit Documentation Feedback Copyright ? 2011C2013, Texas Instruments Incorporated Product Folder Links: LM9076Q LM9076Q www.ti.com SNVS713B CAPRIL 2011CREVISED MARCH

2013 APPLICATION INFORMATION REGULATOR BASICS The LM9076Q regulator is suitable for Automotive and Industrial applications where continuous connection to a battery supply is required (refer to the Typical Application circuit). The pass element of the regulator is a PNP device which requires an output bypass capacitor for stability. The minimum bypass capacitance for the output is

10 μF (refer to ESR limitations). A

22 μF, or larger, output bypass capacitor is recommended for typical applications INPUT CAPACITOR The LM9076Q requires a low source impedance to maintain regulator stability because critical portions of the internal bias circuitry are connected to directly to VIN. In general, a

10 μF electrolytic capacitor, located within two inches of the LM9076Q, is adequate for a majority of applications. Additionally, and at a minimum, a 0.1 μF ceramic capacitor should be located between the LM9076Q VIN and Ground pin, and as close as is physically possible to the LM9076Q itself . OUTPUT CAPACITOR An output bypass capacitor is required for stability. This capacitance must be placed between the LM9076Q VOUT pin and Ground pin, as close as is physically possible, using traces that are not part of the load current path. The output capacitor must meet the requirements for minimum capacitance and also maintain the appropriate ESR value across the entire operating ambient temperature range. There is no limit to the maximum output capacitance as long as ESR is maintained. The minimum bypass capacitance for the output is

10 μF (refer to ESR limitations). A

22 μF, or larger, output bypass capacitor is recommended for typical applications. Solid tantalums capacitors are recommended as they generally maintain capacitance and ESR ratings over a wide temperature range. Ceramic capacitor types XR7 and XR5 may be used if a series resistor is added to simulate the minimum ESR requirement. See Figure 24. Aluminum electrolytic capacitors are not recommended as they are subject to wide changes in capacitance and ESR across temperature. Figure 24. Using Low ESR Capacitors DELAY CAPACITOR The capacitor on the Delay pin must be a low leakage type since the charge current is minimal (420 nA typical) and the pin must fully charge to VOUT. Ceramic, Mylar, and polystyrene capacitor types are generally recommended, although changes in capacitance values across temperature changes will have some effect on the delay timing. Any leakage of the IDELAY current, be it through the delay capacitor or any other path, will extend the delay time, possibly to the point that the Reset pin output does not go high. Copyright ? 2011C2013, Texas Instruments Incorporated Submit Documentation Feedback