Details

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BUY STTA1212D https://www.utsource.net/itm/p/12607185.html

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Input Voltage	VIN	4.5	-	40	V
Output Voltage	VOUT	1.8	-	33	V	Adjustable with external resistor
Output Current	IOUT	-	1.2	1.5	A	Continuous
Quiescent Current	IQ	-	50	100	渭A	No load
Dropout Voltage	VDROPOUT	-	1.2	1.8	V	At 1.2 A
Load Regulation	-	-	0.5	1	%	0 mA to 1.5 A
Line Regulation	-	-	0.1	0.3	%/V	VIN from 4.5 V to 40 V
Ripple Rejection	-	-	60	70	dB	100 Hz
Operating Temperature	TOPR	-40	-	125	掳C
Storage Temperature	TSTG	-65	-	150	掳C

Instructions for Use:

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 4.5 V to 40 V.
   • Do not exceed the maximum input voltage to avoid damaging the device.

2. Output Voltage (VOUT):

   • The output voltage can be adjusted using an external resistor.
   • Use the formula provided in the datasheet to calculate the required resistor value.

3. Output Current (IOUT):

   • The device can provide a continuous output current of up to 1.5 A.
   • For reliable operation, ensure the load does not exceed 1.2 A continuously.

4. Quiescent Current (IQ):

   • The quiescent current is typically 50 渭A and can go up to 100 渭A under no-load conditions.

5. Dropout Voltage (VDROPOUT):

   • The dropout voltage is the difference between the input and output voltages at the maximum output current.
   • It typically ranges from 1.2 V to 1.8 V at 1.2 A.

6. Load Regulation:

   • The load regulation is the change in output voltage when the load current changes from 0 mA to 1.5 A.
   • It is typically 0.5% and can go up to 1%.

7. Line Regulation:

   • The line regulation is the change in output voltage when the input voltage changes from 4.5 V to 40 V.
   • It is typically 0.1% per volt and can go up to 0.3% per volt.

8. Ripple Rejection:

   • The ripple rejection is the ability of the device to suppress input voltage ripple.
   • It is typically 60 dB and can go up to 70 dB at 100 Hz.

9. Operating Temperature (TOPR):

   • The device is designed to operate within a temperature range of -40掳C to 125掳C.
   • Ensure the ambient temperature does not exceed these limits.

10. Storage Temperature (TSTG):

    • The device can be stored within a temperature range of -65掳C to 150掳C.
    • Avoid exposing the device to extreme temperatures for extended periods.

11. Mounting and Handling:

    • Handle the device with care to avoid damage.
    • Follow proper soldering techniques to ensure reliable connections.
    • Use appropriate heat sinks if operating at high power levels or in high-temperature environments.

12. Capacitors:

    • Use recommended input and output capacitors as specified in the datasheet to ensure stability and performance.
    • Input capacitors help filter out noise and transients, while output capacitors stabilize the output voltage.

13. PCB Layout:

    • Follow the recommended PCB layout guidelines to minimize parasitic effects and improve thermal performance.
    • Keep traces short and wide to reduce resistance and inductance.

14. Testing:

    • Test the device under various conditions to ensure it meets the required specifications.
    • Monitor the output voltage and current to ensure stable operation.

For detailed information, refer to the datasheet provided by STMicroelectronics.

(For reference only)