1. Overview & Purpose

️· What it is: The AS29372 is a voltage regulator. Specifically, it's described as a "programmable voltage regulator."
️· Manufacturer: Austin Semiconductor, Inc.

2. Key Features

️· Programmable Output Voltage: The output voltage can be adjusted using external resistors, offering flexibility in design.
️· Wide Input Voltage Range: Operates over a broad range of input voltages.
️· Shutdown Function: Allows the regulator to be turned on/off, which helps conserve power in battery-powered applications.
️· Current Limiter: Provides protection against overloads.
️· Adjustable Output: Can be programmed for different voltages (5.0V or 3.3V, for example, with specific circuitry).

3. Electrical Characteristics (Key Values)

️· Reference Voltage (VREF): 1.204V to 1.26V (nominal 1.235V)
️· Adjust Pin Bias Current (IFB): 20nA to 60nA (nominal 20nA)
️· Input Logic Voltage (Shutdown):
- Low (Enable): 0.7V
- High (Disable): 2.0V
️· Ground Pin Current (IGND): Varies with load and output voltage. Ranges from a few µA (no load) to several mA (under heavy load).
️· Output Voltage Programming:
- `VOUT = VREF * (1 + R1/R2) - |IFB| * R1`
️· Typical Input-Output voltage range: 40mV to 400mV, depending on load current.

4. Applications & Programming

️· Output Capacitor: A minimum of 10µF is required for stability. Lower values may be acceptable for lower output currents, but may require adjustment.
️· Programming: The output voltage is adjusted with resistors R1 and R2, as described by the equation in the Electrical Characteristics.

5. Shutdown Function

️· The device is enabled when the shutdown pin is low.
️· It has a typical input voltage range of 2.0-5.0V.

6. Mechanical Details

️· Package Type: "F" (likely an SOIC package)
️· The mechanical definition details show the dimensions of the package.

Important Considerations & Notes

️· Stability: The datasheet emphasizes the importance of external capacitors for stability.
️· Loading: The performance and stability characteristics change significantly with load current.
️· Noise: Noise can be reduced by adjusting the output capacitor and adding a bypass capacitor.
️· Always Refer to the Full Datasheet: This summary is based on the provided excerpts. Always consult the complete datasheet for complete and accurate information.