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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
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Are there any LDO regulators with adjustable output voltage available (requiring external resistors)?

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

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

VOUT is calculated

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

VOUT is calculated as follows:

Figure 1 Example of an application circuit for an LDO regulator with adjustable output voltage
Figure 1 Example of an application circuit for an LDO regulator with adjustable output voltage

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.

Examples of external resistor values
Output Voltage (Typical) R1 R2
0.6V 0 Ω Open
0.65V 2 kΩ 24 kΩ
0.7V 4 kΩ 24 kΩ
0.8V 8 kΩ 24 kΩ
0.9V 12 kΩ 24 kΩ
1V 16 kΩ 24 kΩ
1.1V 20 kΩ 24 kΩ
1.2V 24 kΩ 24 kΩ
1.3V 28 kΩ 24 kΩ
1.8V 48 kΩ 24 kΩ
2.5V 76 kΩ 24 kΩ
3V 96 kΩ 24 kΩ
3.3V 108 kΩ 24 kΩ
3.6V 120 kΩ 24 kΩ