Details

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BUY TB2933HQ https://www.utsource.net/itm/p/12597554.html

Parameter	Symbol	Min	Typical	Max	Unit	Conditions
Supply Voltage	VCC	4.5	5.0	5.5	V
Output Current	IOUT	-	3.0	3.5	A	Continuous, 25°C ambient
Peak Current	IPEAK	-	4.0	4.5	A
Efficiency	η	80	85	90	%	At full load, 25°C ambient
Switching Frequency	fSW	100	200	300	kHz
Shutdown Current	ISD	-	1.0	2.0	μA	VCC = 5V, shutdown mode
Operating Temperature	TOPR	-40	-	125	°C
Storage Temperature	TSTG	-65	-	150	°C

Instructions for Use:

1. Supply Voltage (VCC):

   • Ensure the supply voltage is within the range of 4.5V to 5.5V.
   • Exceeding these limits can damage the device.

2. Output Current (IOUT):

   • The device can provide a continuous output current of up to 3.5A.
   • For reliable operation, design the circuit to handle typical loads of 3.0A.

3. Peak Current (IPEAK):

   • The peak current should not exceed 4.5A to avoid overloading the device.

4. Efficiency (η):

   • The efficiency is optimized at 85% under full load conditions at 25°C ambient temperature.
   • Ensure proper heat dissipation to maintain efficiency.

5. Switching Frequency (fSW):

   • The switching frequency can be set between 100kHz and 300kHz.
   • Higher frequencies reduce the size of external components but may increase switching losses.

6. Shutdown Current (ISD):

   • In shutdown mode, the current consumption is minimal, typically around 1.0μA.
   • Use the shutdown feature to conserve power when the device is not in use.

7. Operating Temperature (TOPR):

   • The device is designed to operate from -40°C to 125°C.
   • Ensure adequate cooling for high-temperature environments.

8. Storage Temperature (TSTG):

   • Store the device in temperatures ranging from -65°C to 150°C.
   • Avoid exposing the device to extreme temperatures for extended periods.

9. Mounting and Handling:

   • Handle the device with care to avoid mechanical stress.
   • Follow standard ESD (Electrostatic Discharge) precautions during handling and assembly.

10. Circuit Design:

    • Use appropriate external components such as inductors, capacitors, and diodes to ensure stable operation.
    • Refer to the datasheet for recommended component values and circuit layouts.

(For reference only)