Details

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BUY UA7912C https://www.utsource.net/itm/p/1749503.html
NEGATIVE-VOLTAGE REGULATORS

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Output Voltage	Vout	No load		12		V
Line Regulation		0 < Iout ≤ 1.5A	0		4	mV
Load Regulation		0 < Iout ≤ 1.5A	0		80	mV
Dropout Voltage	Vdo	Iout = 1.5A		1.7		V
Thermal Shutdown	Tsd			160		°C
Short-Circuit Current	Isc	Ta = 25°C		2		A
Operating Junction Temperature	Tj		-65		150	°C

Instructions for Use:

1. Power Supply Requirements: Ensure the input voltage is at least 1.7V higher than the output voltage to maintain regulation, especially under full load conditions.
2. Heat Dissipation: The device has a thermal shutdown feature that activates at approximately 160°C. For continuous operation, ensure adequate heat sinking if operating near maximum current or in high ambient temperatures.
3. Capacitor Selection: Place a capacitor (typically 0.33 μF) between the input and ground to improve transient response and stability. An output capacitor of at least 0.1 μF is recommended to prevent oscillations.
4. Short Circuit Protection: The UA7912C includes internal short-circuit current limiting. During a short circuit, the output current will be limited to approximately 2A at room temperature.
5. Operating Temperature Range: The device can operate within an ambient temperature range from -65°C to +150°C. However, performance specifications are typically guaranteed only within narrower limits as specified by the manufacturer.
6. Mounting Orientation: Pay attention to the orientation when mounting the component on a PCB to avoid incorrect connections which could lead to damage or malfunction.

This table and these instructions provide a comprehensive overview of the UA7912C's key parameters and guidelines for its use.

(For reference only)