Details

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BUY TPS70628DBVR https://www.utsource.net/itm/p/7497162.html
Linear Voltage Regulator IC Positive Fixed 1 Output 2.8V 150mA SOT-23-5

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Input Voltage	VIN	1.8	-	5.5	V
Output Voltage	VOUT	-	2.8	-	V	Fixed output
Quiescent Current	IQ	-	10	-	μA	VIN = 3.6V, VOUT = 2.8V, IOUT = 0mA
Dropout Voltage	VDROPOUT	-	250	-	mV	IOUT = 200mA, VIN = VOUT + VDROPOUT
Load Regulation	ΔVOUT	-	4	-	mV	IOUT = 0mA to 200mA
Line Regulation	ΔVOUT	-	4	-	mV	VIN = 2.5V to 5.5V
Power Supply Rejection Ratio	PSRR	-	60	-	dB	f = 1kHz
Transient Response	ΔVOUT	-	20	-	mV	Step load: 0mA to 200mA
Operating Junction Temperature	TJOP	-40	-	125	°C

Instructions for TPS70628DBVR:

1. Power Supply Connection:

   • Connect the input voltage (VIN) between the VIN pin and GND.
   • Ensure the input voltage is within the specified range of 1.8V to 5.5V.

2. Output Configuration:

   • The output voltage (VOUT) is fixed at 2.8V and does not require external resistors for setting the output voltage.

3. Capacitor Selection:

   • Use a 1μF or higher input capacitor close to the VIN and GND pins.
   • Use a 1μF or higher output capacitor close to the VOUT and GND pins to ensure stability.

4. Thermal Considerations:

   • Ensure adequate heat dissipation if operating near the maximum current and temperature limits.
   • Refer to the thermal resistance data in the datasheet for detailed thermal management.

5. PCB Layout:

   • Keep the layout compact with short traces from VIN and VOUT to their respective capacitors.
   • Place the device on a board with good thermal conductivity if high current operation is anticipated.

6. Application Specific Notes:

   • For optimal performance, keep the PCB layout as simple as possible, minimizing trace lengths and using wide traces for power lines.
   • Ensure that bypass capacitors are placed as close as possible to the device's power pins.

Refer to the full datasheet for more detailed specifications and application notes.

(For reference only)