Details

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BUY TPS51225BRUKR https://www.utsource.net/itm/p/11271233.html
IC REG QUAD BUCK/LNR SYNC 20WQFN

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	VIN	2.95	-	5.5	V	Operating input voltage range
Output Voltage	VOUT	0.6	-	3.3	V	Adjustable output voltage range
Output Current	IOUT	-	3	-	A	Maximum continuous output current
Switching Frequency	fSW	500	750	1000	kHz	Switching frequency range
Efficiency	η	-	94	-	%	Typical efficiency at nominal conditions
Quiescent Current	IQ	-	1.8	-	mA	Quiescent current at no load
Shutdown Current	ISD	-	0.1	-	μA	Shutdown mode supply current
Thermal Shutdown	TSD	-	160	-	°C	Thermal shutdown temperature
Operating Temperature	TOP	-40	-	125	°C	Operating junction temperature range
Storage Temperature	TSTG	-65	-	150	°C	Storage temperature range
Package Type	PKG	-	-	-	TSSOP	Package type

Instructions for Use:

1. Input Voltage (VIN):

   • Ensure the input voltage is within the specified range of 2.95V to 5.5V.
   • Use appropriate input capacitors to filter noise and stabilize the input voltage.

2. Output Voltage (VOUT):

   • Set the output voltage using external resistors according to the formula: VOUT = 0.6 * (1 + R1/R2), where R1 and R2 are the feedback resistors.
   • Use a low ESR output capacitor to filter the output and maintain stability.

3. Output Current (IOUT):

   • The device can provide up to 3A of continuous output current.
   • Ensure adequate heat dissipation if operating at high currents to prevent overheating.

4. Switching Frequency (fSW):

   • The switching frequency can be set using an external resistor connected to the RT pin.
   • Higher frequencies reduce the size of external components but may increase switching losses.

5. Efficiency (η):

   • The typical efficiency is around 94% under nominal conditions.
   • Optimize the design by selecting appropriate inductors and capacitors to achieve the best efficiency.

6. Quiescent Current (IQ):

   • The quiescent current is typically 1.8mA at no load.
   • This value should be considered when designing for low-power applications.

7. Shutdown Current (ISD):

   • When the EN pin is pulled low, the device enters shutdown mode with a current consumption of 0.1μA.
   • Use this feature to conserve power in battery-operated systems.

8. Thermal Shutdown (TSD):

   • The device will automatically shut down if the junction temperature exceeds 160°C.
   • Ensure proper thermal management to prevent thermal shutdown.

9. Operating Temperature (TOP):

   • The device is designed to operate over a temperature range of -40°C to 125°C.
   • Consider the ambient temperature and thermal resistance when designing the PCB layout.

10. Storage Temperature (TSTG):

    • Store the device in a temperature range of -65°C to 150°C to ensure long-term reliability.

11. Package Type (PKG):

    • The TPS51225BRUKR is available in a TSSOP package.
    • Follow the recommended PCB layout and soldering guidelines provided in the datasheet for reliable assembly.

Additional Notes:

• Always refer to the latest datasheet from Texas Instruments for detailed specifications and application notes.
• Proper PCB layout and component selection are critical for optimal performance and reliability.

(For reference only)