TPS7A8300 Reference Design Circuit | Low Dropout Regulator Application Circuit

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The TPS7A8300 is a low noise (6μVRMS), low dropout (LDO) regulator that provides a 2A load with a maximum voltage drop of only 125mV. This article mainly introduces the TPS7A8300 features, application range, reference design circuit and circuit analysis to help you shorten the design time.

TPS7A8300 features: ultra low dropout: maximum value of 125mV at 2A; output voltage noise: 6μVRMS; programmable soft start output; power good (PG) output

TPS7A8300 Typical Applications: Radio Frequency (RF), IF Components; Wireless Infrastructure; Test and Measurement; Instrumentation, Medical and Audio

TPS7A8300 reference design application circuit:

Figure 1 TPS7A8300 internal structure diagram

The TPS7A8300 is a low-noise (6 μVRMS), low-dropout voltage regulator (LDO) capable of sourcing a 2-A load with only 125 mV of maximum dropout. The TPS7A8300 output voltages are fully user-adjustable (up to 3.95 V) Using a printed circuit board (PCB) layout without the need of external resistors or feed-forward capacitors, thus reducing overall component count.

Figure 2 TPS7A8300 reference design

TheTPS7A8300 does not require external resistors to set output voltage, which is typical of low-dropout voltage regulators (LDOs), but uses device pins 5, 6, 7, 9, 10, and 11 to program the regulated output voltage. Either connected to ground (active) or is left open (or floating).

TPS7A8300 Chinese data sheet: Click to download

More schematics and source code popular application circuit: click now

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