Are there any LDO regulators with adjustable output voltage available (requiring external resistors)?

Our product lineup includes LDO regulators that allow output voltage (V_OUT) to be adjusted via external resistors.

To view the lineup of LDO regulators with adjustable output voltage, click the link shown below.

These LDO regulators allow the output voltage to be adjusted via two resistors connected between V_OUT and GND so that the voltage between the two resistors is applied to the V_ADJ pin.

V_OUT is calculated as follows:

Typical external resistor values are shown in the datasheet for each LDO regulator. You may want to connect high-value resistors to reduce power consumption, but resistors whose values are too high might cause the LDO regulator to function incorrectly. Care should be exercised during design and evaluation processes to ensure that your LDO regulator works with the resistors selected.

Please also refer to the following documents for related explanations.

Application note

• Power Effiiency Optimization and Application Circuits Using Dual-power-supply LDO Regulators
• Basics of Low-Dropout(LDO) Regulators ICs
• LDO Regulators Glossary

FAQ

• What is the purpose of the capacitor connected to one of the external resistors for an adjustable-output

To product list of LDO ICs :

• Adjustable Output Products

Main web page about LDO ICs:

• Low-Dropout Regulators(LDO Regulators)

Otherinformation

• e-learning Power Management IC