Details

---

BUY LT1074IT#06PBF https://www.utsource.net/itm/p/12612027.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage Range	VIN	-	3.0	-	40.0	V
Output Voltage Range	VOUT	-	1.23	-	37.0	V
Quiescent Current	IQ	VIN = 5V, VOUT = 5V	-	4.5	-	mA
Dropout Voltage	VDROPOUT	IOUT = 1A	-	1.8	-	V
Load Regulation	-	IOUT = 0 to 1A	-	0.01	-	%
Line Regulation	-	VIN = 5 to 40V	-	0.01	-	%
Output Current	IOUT	-	-	1.5	-	A
Power Supply Rejection	PSRR	f = 1kHz	-	80	-	dB
Operating Temperature Range	TOPR	-	-40	-	125	掳C
Storage Temperature Range	TSTG	-	-65	-	150	掳C

Instructions for Using LT1074IT#06PBF

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 3.0V to 40.0V.
   • Use appropriate input filtering capacitors to stabilize the input voltage.

2. Output Voltage (VOUT):

   • The output voltage can be adjusted using external resistors. The formula for calculating the output voltage is: [ V_ = 1.23 left(1 + fracright) ]
   • Choose R1 and R2 such that the desired output voltage is achieved.

3. Quiescent Current (IQ):

   • The quiescent current is typically 4.5mA at VIN = 5V and VOUT = 5V. This value should be considered when designing the power supply circuit.

4. Dropout Voltage (VDROPOUT):

   • The dropout voltage is typically 1.8V at IOUT = 1A. Ensure the input voltage is at least 1.8V higher than the desired output voltage to maintain regulation.

5. Load Regulation:

   • The load regulation is 0.01% from 0 to 1A. This indicates minimal change in output voltage with varying load currents.

6. Line Regulation:

   • The line regulation is 0.01% from 5V to 40V. This indicates minimal change in output voltage with varying input voltages.

7. Output Current (IOUT):

   • The maximum continuous output current is 1.5A. Ensure the load does not exceed this limit to avoid damage to the device.

8. Power Supply Rejection Ratio (PSRR):

   • The PSRR is 80dB at 1kHz. This indicates good rejection of ripple and noise from the input supply.

9. Operating Temperature Range (TOPR):

   • The device operates reliably from -40掳C to 125掳C. Ensure the ambient temperature is within this range.

10. Storage Temperature Range (TSTG):

    • The device can be stored from -65掳C to 150掳C without damage.

11. PCB Layout:

    • Use a ground plane to reduce noise and improve thermal performance.
    • Place input and output capacitors close to the device to minimize parasitic inductance.

12. Thermal Considerations:

    • If operating at high output currents or in high ambient temperatures, ensure adequate heat sinking to keep the junction temperature below the maximum rating.

13. Protection Features:

    • The device includes thermal shutdown and current limiting to protect against overtemperature and overload conditions.

By following these guidelines, you can ensure reliable operation of the LT1074IT#06PBF in your application.

(For reference only)