Details

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BUY LM2594MX-3.3/NOPB https://www.utsource.net/itm/p/833120.html
LM2594/LM2594HV SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator; Package: SOIC NARROW; No of Pins: 8; Qty per Container: 2500/Reel

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Continuous	4.75	-	20	V
Output Voltage	VOUT	Fixed	-	3.3	-	V
Output Current	IOUT	Continuous	-	3	-	A
Dropout Voltage	VDROPOUT	IOUT = 3A, VIN = 5V	-	1.2	-	V
Quiescent Current	IQ	VIN = 5V, no load	-	5	-	mA
Load Regulation	ΔVOUT	IOUT = 0 to 3A	-	0.8%	-	%
Line Regulation	ΔVOUT	VIN = 4.75V to 20V	-	0.1%	-	%
Ripple Rejection	RR	f = 120Hz	-	60	-	dB
Operating Temperature	TOPR	Storage	-40	-	85	°C
Junction Temperature	Tj	Maximum	-	-	125	°C

Instructions for Use:

1. Input Voltage (VIN): Ensure the input voltage is within the range of 4.75V to 20V. The device will not operate outside this range.

2. Output Voltage (VOUT): The LM2594MX-3.3/NOPB provides a fixed output voltage of 3.3V. No external components are required to set this voltage.

3. Output Current (IOUT): The regulator can supply up to 3A continuously. Ensure that the load does not exceed this limit to avoid overheating or damage.

4. Heat Dissipation: Since the dropout voltage is relatively low (1.2V at 3A), heat dissipation should be considered when operating near the maximum current and/or in high ambient temperatures.

5. Capacitors: For stable operation, use appropriate input and output capacitors. Typically, a 10μF ceramic capacitor on the input and a 10μF ceramic capacitor on the output are recommended.

6. PCB Layout: Good PCB layout practices are essential. Keep the ground paths short and wide, and place the input and output capacitors as close to the regulator as possible.

7. Operating Temperature: The device is rated for operation from -40°C to +85°C. Ensure adequate cooling if operating near the upper temperature limit, especially under high load conditions.

8. Storage Temperature: The storage temperature range is the same as the operating temperature range (-40°C to +85°C).

9. Junction Temperature: Do not allow the junction temperature to exceed 125°C to prevent thermal shutdown or damage.

10. Ripple Rejection: The regulator offers good ripple rejection at 60dB at 120Hz, making it suitable for applications where clean DC power is required.

Ensure all connections are secure and correct before applying power to the device. Always refer to the manufacturer's datasheet for the most accurate and detailed information.

(For reference only)