LDK130C08R

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The LDK130C08R is a three-channel current mode 3.2Volts-4.6Volts low-dropout (LDO) linear voltage regulator. It is an integrated circuit that has three voltage regulator channels inside it- LDO1, LDO2 and LDO3. The LDK130C08R is used mainly in digital still cameras, and other portable electronic applications. It has been designed to be precise and efficient, and it features a low quiescent current up to 15uA, even when supplying up to 3.2V.

LDK130C08R Application Field:

• Digital still cameras.
• Portable electronic applications.
• Multi-channel charging.
• Battery powered systems.

LDK130C08R Working Principle:

The LDK130C08R is a 3.2V-4.6V, three-channel current mode 3.2Volts-4.6Volts low dropout linear voltage regulator. It is an integrated circuit that has three voltage regulator channels inside it- LDO1, LDO2, and LDO3, and each channel has its own Enable pin. The LDK130C08R is used mainly in digital still cameras, and other portable electronic applications.

Each of the three channels uses a constant current topology that requires an input capacitor and output capacitor for proper operation. The input capacitor is used to filter the input supply voltage, and the output capacitor is used to filter the output supply voltage. The input capacitor also helps reduce the current peak due to the input voltage dropping during the charge/discharge operation of the LDO1, LDO2, and LDO3 channels. Since the operation of the LDK130C08R is based on constant current topology, the output voltage can stay constant even when the input voltage varies. The LDK130C08R also features a low quiescent current up to 15uA, even when supplying up to 3.2V.

The LDK130C08R also features a shutdown function for each of its channels. When the shutdown control input for each channel is high, the corresponding channel will be disabled and no current will be drawn from the input supply. When the shutdown control input is low (or 0V), the corresponding channel will be enabled and current will be drawn from the input supply. This feature allows the LDK130C08R to be used in multi-channel charging applications, where only the required channels will be enabled while the other channels will be disabled to reduce the overall power consumption.

In addition, the LDK130C08R also features a reset function. When the reset control input for each channel is high (or 1V), the corresponding channel will enter a reset mode, and the output voltage will be forced to the reset voltage (3.2V). When the reset control input is low (or 0V), the reset mode will be disabled and the output voltage will be set to the selected output voltage. This feature allows the LDK130C08R to be used as a voltage supervisor, where the output voltage can be monitored and switched off if the voltage falls below the preset threshold.

Overall, the LDK130C08R is a great choice for digital still cameras, portable electronic applications, multi-channel charging, and battery powered systems requiring an efficient, precise and low quiescent current linear voltage regulator. The LDK130C08R features excellent current and temperature performance, and it is an ideal choice for any application that requires a high quality, low quiescent current, three-channel low-dropout regulator.

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