Details

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BUY ST03D-170 https://www.utsource.net/itm/p/12610836.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Supply Voltage	VDD	2.7	-	5.5	V	Operating voltage range
Output Current	IOUT	-	1.2	2.0	A	Maximum output current
Quiescent Current	IQ	-	30	60	渭A	Quiescent current at no load
Dropout Voltage	VDROPOUT	-	170	200	mV	Dropout voltage at IOUT = 1.2A
Load Regulation	-	-	0.5	1.0	%	Load regulation from 0 to 1.2A
Line Regulation	-	-	0.05	0.1	%/V	Line regulation over full input range
Thermal Shutdown	TSD	-	160	180	掳C	Thermal shutdown temperature
Operating Junction Temp	TJ	-40	-	125	掳C	Operating junction temperature range
Storage Temperature	TSTG	-40	-	150	掳C	Storage temperature range

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage (VDD) is within the specified range of 2.7V to 5.5V.
   • Connect a bypass capacitor (typically 10渭F) between VDD and GND as close to the device as possible to filter out noise and stabilize the supply.

2. Output Current:

   • The maximum continuous output current (IOUT) is 2.0A, with a typical value of 1.2A.
   • For applications requiring higher currents, consider using external components or a different regulator.

3. Quiescent Current:

   • The quiescent current (IQ) is typically 30渭A and can go up to 60渭A.
   • This current is drawn by the regulator even when there is no load on the output.

4. Dropout Voltage:

   • The dropout voltage (VDROPOUT) is the minimum difference between the input and output voltages required to maintain regulation.
   • At a typical output current of 1.2A, the dropout voltage is 170mV, with a maximum of 200mV.

5. Thermal Management:

   • The device has a thermal shutdown feature that activates at temperatures between 160掳C and 180掳C.
   • Ensure proper heat sinking to keep the junction temperature (TJ) within the operating range of -40掳C to 125掳C.

6. Temperature Range:

   • The operating junction temperature range is -40掳C to 125掳C.
   • The storage temperature range is -40掳C to 150掳C.

7. Mounting and Layout:

   • Place the device in a location with good airflow and away from heat sources.
   • Use wide traces for power and ground connections to minimize resistance and voltage drop.

8. Testing:

   • Before finalizing the design, test the regulator under various load and temperature conditions to ensure stable operation and compliance with specifications.

(For reference only)