Details

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BUY LM2930T-8.0 https://www.utsource.net/itm/p/12610481.html

Parameter	Symbol	Min	Typ	Max	Unit	Notes
Input Voltage	VIN	1.2	-	40	V
Output Voltage	VOUT	-	8.0	-	V	Fixed
Output Current (Max)	IOUT	-	150	-	mA
Dropout Voltage	VDROPOUT	-	0.4	-	V	@ IOUT = 150mA, VIN = 8..4V
Quiescent Current	IQ	-	10	-	渭A
Load Regulation	-	-	0.01	-	%	0 < IOUT < 150mA
Line Regulation	-	-	0.01	-	%	8.4V < VIN < 40V
Ripple Rejection	-	60	-	80	dB	@ 1kHz
Operating Temperature	TOPR	-40	-	125	掳C
Storage Temperature	TSTG	-65	-	150	掳C

Instructions for Using LM2930T-8.0

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 1.2V to 40V.
   • The dropout voltage is 0.4V at maximum output current, so the input voltage should be at least 8.4V to maintain the 8.0V output.

2. Output Voltage (VOUT):

   • The output voltage is fixed at 8.0V and does not require external resistors for adjustment.

3. Output Current (IOUT):

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

4. Quiescent Current (IQ):

   • The quiescent current is typically 10渭A, which is very low and suitable for battery-operated devices.

5. Load Regulation:

   • The load regulation is 0.01%, indicating that the output voltage remains stable over a wide range of load currents.

6. Line Regulation:

   • The line regulation is also 0.01%, ensuring that the output voltage remains stable even when the input voltage varies.

7. Ripple Rejection:

   • The ripple rejection is between 60dB and 80dB at 1kHz, which helps in filtering out noise from the input power supply.

8. Operating Temperature (TOPR):

   • The device can operate in temperatures ranging from -40掳C to 125掳C. Ensure the ambient temperature is within this range.

9. Storage Temperature (TSTG):

   • The storage temperature range is from -65掳C to 150掳C. Store the device in a suitable environment to prevent damage.

10. Capacitors:

    • Use appropriate input and output capacitors to stabilize the regulator. A typical recommendation is a 1渭F ceramic capacitor on the input and a 1渭F ceramic capacitor on the output.

11. PCB Layout:

    • Place the input and output capacitors as close as possible to the regulator to minimize parasitic inductance and improve stability.

12. Thermal Considerations:

    • The TO-220 package has good thermal dissipation capabilities. However, if the regulator is operating near its maximum output current, consider using a heatsink to keep the junction temperature within safe limits.

(For reference only)