Details

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BUY LT1102CN8 https://www.utsource.net/itm/p/12606596.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	-	2.7	-	36	V
Output Voltage	VOUT	-	1.23	-	35	V
Quiescent Current	IQ	VIN = 5V	-	90	-	渭A
Dropout Voltage	VDROPOUT	IOUT = 150mA, VIN = 5V	-	0.4	-	V
Load Regulation	-	IOUT: 0 to 150mA	-	0.01	-	%
Line Regulation	-	VIN: 4.75 to 5.25V	-	0.01	-	%
Output Current	IOUT	-	-	150	-	mA
Thermal Shutdown	TSD	-	-	160	-	掳C
Operating Temperature	TOPR	-	-40	-	125	掳C

Instructions for Using LT1102CN8

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 2.7V to 36V.
   • Use appropriate filtering capacitors to stabilize the input voltage.

2. Output Voltage (VOUT):

   • The output voltage can be set between 1.23V and 35V using external resistors.
   • Use the formula ( V_ = 1.23 left(1 + fracright) ) to calculate the resistor values.

3. Quiescent Current (IQ):

   • The quiescent current is typically 90渭A at 5V input.
   • This low quiescent current helps in minimizing power consumption.

4. Dropout Voltage (VDROPOUT):

   • The dropout voltage is typically 0.4V at 150mA output current and 5V input.
   • Ensure the input voltage is at least 0.4V higher than the desired output voltage to avoid dropout.

5. Load Regulation:

   • The load regulation is typically 0.01% over the load range from 0 to 150mA.
   • This ensures stable output voltage under varying load conditions.

6. Line Regulation:

   • The line regulation is typically 0.01% over the input voltage range from 4.75V to 5.25V.
   • This ensures stable output voltage under varying input conditions.

7. Output Current (IOUT):

   • The maximum output current is 150mA.
   • Ensure the load does not exceed this limit to prevent damage to the regulator.

8. Thermal Shutdown (TSD):

   • The thermal shutdown temperature is typically 160掳C.
   • Ensure adequate heat dissipation to prevent the device from overheating.

9. Operating Temperature (TOPR):

   • The operating temperature range is from -40掳C to 125掳C.
   • Ensure the device operates within this temperature range to maintain reliability.

10. Capacitor Selection:

    • Use a 1渭F ceramic capacitor on the input side for stability.
    • Use a 1渭F ceramic capacitor on the output side to filter out noise and improve transient response.

11. PCB Layout:

    • Keep the input and output capacitors close to the IC to minimize parasitic inductance.
    • Use wide traces for power lines to reduce resistance and improve thermal performance.

12. Handling:

    • Handle the IC with care to avoid static damage.
    • Follow proper soldering techniques to ensure reliable connections.

(For reference only)