Details

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BUY LT1039CSW https://www.utsource.net/itm/p/7671719.html
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Parameter	Conditions	Min	Typ	Max	Unit
Input Voltage Range	V+ to V-	2.7		40	V
Output Voltage	Adjustable		1.24		V
Quiescent Current	VIN = 5V, IOUT = 0mA		65		μA
Dropout Voltage	IOUT = 10mA		0.6		V
Line Regulation	VIN = 10V to 30V		0.01		%
Load Regulation	IOUT = 0mA to 15mA		0.01		%
PSRR	f = 120Hz		80		dB
Thermal Shutdown	Junction Temperature		160		°C
Short-Circuit Current	VIN = 5V, VOUT = GND		30		mA

Instructions for LT1039CSW:

1. Input Capacitor (CIN):

   • Place a 0.1μF ceramic capacitor close to the input pins to ensure stability and reduce noise.

2. Output Capacitor (COUT):

   • A 1μF ceramic capacitor is recommended for stable operation. Larger capacitors can be used for better transient response.

3. Feedback Resistor Network:

   • Use the feedback resistors R1 and R2 to set the output voltage according to the formula: VOUT = 1.24V * (1 + R1/R2).

4. Thermal Considerations:

   • Ensure adequate heat sinking if operating at high currents or in high ambient temperatures to prevent thermal shutdown.

5. Layout Recommendations:

   • Keep the layout compact with short leads and wide traces for power and ground connections to minimize parasitic effects.

6. Power Supply Connections:

   • Connect the input supply directly to the input pin, ensuring a solid ground connection to avoid instability.

7. Handling Static Electricity:

   • Handle the device with care to avoid damage from static electricity; use proper ESD precautions.

8. Operating Temperature Range:

   • The device is designed to operate within a junction temperature range of -40°C to 125°C.

These guidelines will help in achieving optimal performance from the LT1039CSW regulator.

(For reference only)