Details

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BUY TPS51916RUKR https://www.utsource.net/itm/p/11265510.html
IC REG CTRLR DDR 2OUT 20WQFN

Parameter	Symbol	Test Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	-	2.97	3.3	3.63	V
Output Voltage	VOUT	-	0.8	-	1.8	V
Switching Frequency	fSW	-	1.0	1.2	1.5	MHz
Load Current	ILOAD	VOUT = 1.0V	0	-	6	A
Efficiency	η	ILOAD = 3A	-	92	-	%
Quiescent Current	IQ	VIN = 3.3V, No Load	-	35	-	μA
Shutdown Current	ISD	VIN = 3.3V, EN = Low	-	1	-	μA
Enable Threshold (High)	VENH	Rising	1.18	-	1.32	V
Enable Threshold (Low)	VENL	Falling	0.98	-	1.12	V
Soft-Start Time	tSS	-	-	4	-	ms
UVLO Hysteresis	VUVLOHYS	VIN = 2.97V to 3.63V	-	0.2	-	V
Thermal Shutdown	TSD	-	-	160	-	°C

Instructions for Use:

1. Power Supply Connection:

   • Connect the input voltage (VIN) to the power supply within the specified range (2.97V to 3.63V).
   • Ensure the output voltage (VOUT) is set according to your application needs, typically between 0.8V and 1.8V.

2. Enable Pin Configuration:

   • The enable pin (EN) controls the operation of the device.
   • Apply a voltage greater than 1.18V to turn on the device.
   • Apply a voltage less than 0.98V to turn off the device.

3. Output Capacitor Selection:

   • Choose an output capacitor with low ESR to ensure stable operation and minimize output ripple.
   • Typical values range from 10μF to 100μF, depending on the load current and desired performance.

4. Inductor Selection:

   • Select an inductor based on the switching frequency (1.0 to 1.5MHz) and the required load current (up to 6A).
   • Typical inductor values range from 1μH to 4.7μH.

5. Thermal Management:

   • Ensure adequate heat dissipation to keep the device temperature below the thermal shutdown threshold (160°C).
   • Consider using a heatsink or placing the device on a PCB with good thermal conductivity.

6. Soft-Start Configuration:

   • The soft-start time is typically 4ms, which helps to reduce inrush current and stabilize the output voltage during startup.

7. Protection Features:

   • The device includes under-voltage lockout (UVLO) and thermal shutdown protection to ensure safe operation.
   • The UVLO hysteresis helps prevent oscillation when the input voltage is near the threshold.

8. Layout Considerations:

   • Place the input and output capacitors as close as possible to the device to minimize parasitic inductance.
   • Use wide traces for high-current paths to reduce resistance and improve efficiency.

By following these guidelines, you can ensure optimal performance and reliability of the TPS51916RUKR in your application.

(For reference only)