Details

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BUY LT3080ET#PBF https://www.utsource.net/itm/p/8164240.html
New and original

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Continuous	1.2	-	40	V
Output Voltage	VOUT	Adjustable	0	-	VIN-0.5	V
Output Current	IOUT	Continuous	-	1.1	-	A
Dropout Voltage	VDROPOUT	IOUT=1.1A	-	0.3	-	V
Quiescent Current	IQ	VIN=5V	-	2	-	mA
PSRR (Power Supply Rejection Ratio)	PSRR	f=120Hz	-	70	-	dB
Line Regulation	ΔVOUT/ΔVIN	IOUT=10mA, VIN=5V to 16V	-	0.01	-	%
Load Regulation	ΔVOUT/ΔIOUT	VIN=12V, IOUT=0 to 1.1A	-	0.01	-	%
Temperature Range	Toper	Junction	-40	-	125	°C

Instructions for LT3080ET#PBF:

1. Setting the Output Voltage:

   • The output voltage is set by a single resistor connected between the SET pin and ground. The formula to calculate the output voltage (VOUT) is: [ V_ = 1.2V times left(1 + frac{10kOmega}right) ] where ( R_1 ) is the resistance value in ohms.

2. Input Capacitor:

   • A 1μF capacitor from VIN to ground is recommended for stability. Higher values can be used if needed.

3. Output Capacitor:

   • An output capacitor is not strictly required for stability but is recommended for improved transient response. A typical value is 10μF.

4. Thermal Considerations:

   • Ensure adequate heat sinking or PCB copper area to manage power dissipation, especially at higher load currents and input-to-output voltage differentials.

5. PCB Layout:

   • Keep the layout compact with short leads, especially for high-frequency bypass capacitors.
   • Place the input and output capacitors as close as possible to the device.

6. Operating Temperature:

   • Operate within the specified temperature range to ensure reliable performance.

7. Protection Features:

   • The device includes internal thermal shutdown and current limiting for protection against overload conditions.

(For reference only)