Details

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BUY PM8834TR https://www.utsource.net/itm/p/5011028.html
4 A dual low side MOSFET driver

Parameter	Symbol	Min	Typ	Max	Unit	Notes
Input Voltage	VIN	2.7	-	5.5	V
Output Voltage	VOUT	-	1.8	-	V	Fixed
Output Current	IOUT	-	0.3	0.5	A
Quiescent Current	IQ	-	60	-	μA
Dropout Voltage	VDROPOUT	-	250	-	mV @ IOUT=0.3A
Shutdown Current	ISD	-	0.1	-	μA
Operating Junction Temp	TJ	-40	-	125	°C
Storage Temperature	TSTG	-40	-	150	°C
Thermal Resistance (θJA)	-	-	120	-	°C/W

Instructions for Use:

1. Power Supply Connection:

   • Connect the input voltage (VIN) to the positive terminal of the power supply.
   • Ensure the input voltage is within the range of 2.7V to 5.5V.

2. Output Configuration:

   • The output voltage (VOUT) is fixed at 1.8V. No external resistors are required for voltage adjustment.

3. Load Connection:

   • Connect the load between the output (VOUT) and ground (GND).
   • Ensure the load current does not exceed 0.5A to avoid overheating or damage.

4. Ground Connection:

   • Ensure a solid ground connection to both the input and output circuits to maintain stability and performance.

5. Thermal Management:

   • The device has a thermal resistance (θJA) of 120°C/W. Ensure adequate heat dissipation, especially when operating at higher currents or in high ambient temperatures.
   • Do not exceed the maximum operating junction temperature (TJ) of 125°C.

6. Shutdown Mode:

   • To place the device in shutdown mode, pull the enable pin (EN) low. The shutdown current (ISD) is typically 0.1μA.
   • To activate the device, pull the enable pin high.

7. Storage and Handling:

   • Store the device in a dry environment with temperatures between -40°C and 150°C.
   • Handle the device with care to avoid static discharge and physical damage.

8. PCB Layout:

   • Use a well-designed PCB layout with short traces and adequate copper area for heat dissipation.
   • Place bypass capacitors close to the input and output pins to filter noise and ensure stability.

9. Testing:

   • Before finalizing the design, test the device under various operating conditions to ensure it meets the required specifications.

10. Compliance:

    • Ensure that the device complies with all relevant safety and regulatory standards for your application.

(For reference only)