LP2950-N_15 Datasheet, PDF (18/51 Pages) Texas Instruments – LP295x-N Series of Adjustable Micropower Voltage Regulators

LP2950-N, LP2951-N
SNVS764O – JANUARY 2000 – REVISED DECEMBER 2014
9 Application and Implementation
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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.
9.1 Application Information
The LP2950-N and LP2951-N are linear voltage regulator operating from 2.3 V to 30 V on the input and
regulates voltages between 1.24 V to 29 V with 0.5% accuracy and 160 mA maximum outputs current. Efficiency
is defined by the ratio of output voltage to input voltage because the LP2950-N and LP2951-N is a linear voltage
regulator. To achieve high efficiency, the dropout voltage (V_IN – V_OUT) must be as small as possible, thus
requiring a very low dropout LDO. Successfully implementing an LDO in an application depends on the
application requirements. If the requirements are simply input voltage and output voltage, compliance
specifications (such as internal power dissipation or stability) must be verified to ensure a solid design. If timing,
start-up, noise, PSRR, or any other transient specification is required, the design becomes more challenging.
Figure 35. Schematic Diagram
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