Details

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BUY LM2940CT-15P https://www.utsource.net/itm/p/12609553.html

Parameter	Min	Typ	Max	Unit	Description
Input Voltage	15	-	28	V	Operating input voltage range
Output Voltage	-	15	-	V	Fixed output voltage
Output Current (Iout)	-	1	-	A	Maximum continuous output current
Dropout Voltage (Vdo)	-	1.6	-	V	Typical dropout voltage at Iout
Quiescent Current (IQ)	-	7	-	mA	Supply current
Load Regulation	-	0.1	-	%	Load regulation
Line Regulation	-	0.05	-	%/V	Line regulation
Ripple Rejection	-	80	-	dB	Power supply rejection ratio
Operating Temperature	-40	-	85	掳C	Junction temperature range

Instructions for LM2940CT-15P:

1. Power Connections:

   • Connect the input voltage to the IN pin.
   • Ensure the input voltage is within the specified range of 15V to 28V.

2. Output Connections:

   • Connect the load to the OUT pin.
   • The regulator will maintain a constant 15V output as long as the input voltage is above the dropout voltage.

3. Ground Connection:

   • Ensure a solid ground connection by connecting the GND pin to the system ground.

4. Capacitor Requirements:

   • Place an input capacitor (typically 0.33 渭F) close to the input pin to stabilize the input voltage.
   • Use an output capacitor (typically 1 渭F) to filter the output and improve transient response.

5. Heat Dissipation:

   • For applications requiring high output currents, ensure adequate heat sinking to manage power dissipation.

6. Operating Environment:

   • Operate the device within the specified temperature range (-40掳C to +85掳C) to ensure reliable performance.

7. Load Regulation:

   • The load regulation is typically 0.1%, meaning the output voltage changes minimally with varying loads.

8. Line Regulation:

   • The line regulation is 0.05% per volt, ensuring stable output even with fluctuations in input voltage.

9. Ripple Rejection:

   • The device provides 80 dB ripple rejection, effectively filtering out noise from the input supply.

(For reference only)