Details

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BUY TOTX173A https://www.utsource.net/itm/p/8941793.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	V_IN		2.7	5.5	V	Operating input voltage range
Output Voltage	V_OUT		3.3	3.3	V	Regulated output voltage
Output Current	I_OUT			200	mA	Maximum continuous output current
Quiescent Current	I_Q		1	5	μA	Supply current in regulation
Dropout Voltage	V_DROPOUT		200	400	mV	Voltage difference between VIN and VOUT for regulation
Shutdown Current	I_SD		0.1	1	μA	Supply current in shutdown mode
Operating Temp.	T_OP	-40		85	°C	Operating temperature range
Storage Temp.	T_STG	-65		150	°C	Storage temperature range

Instructions for TOTX173A

1. Power Supply Connection:

   • Connect the input voltage (V_IN) to a power supply within the specified range of 2.7V to 5.5V.
   • Ensure proper bypass capacitors are placed close to the input and output pins to maintain stability.

2. Output Configuration:

   • The device provides a fixed output voltage of 3.3V. No external components are required for setting this voltage.
   • Ensure the load does not exceed the maximum output current of 200mA.

3. Thermal Considerations:

   • Keep the operating temperature within -40°C to 85°C. For higher ambient temperatures, ensure adequate heat dissipation.

4. Shutdown Mode:

   • To put the device into shutdown mode, pull the SHDN pin low. In this mode, the quiescent current drops to approximately 0.1μA to 1μA.

5. Capacitor Selection:

   • Use ceramic capacitors with X7R or better grade dielectric for both input and output bypassing.
   • Recommended values: 1μF for input and 1μF for output.

6. PCB Layout:

   • Place the regulator as close as possible to the load to minimize trace resistance and inductance.
   • Ensure good ground connections and thermal vias if necessary.

7. Handling Precautions:

   • The device is sensitive to electrostatic discharge (ESD). Handle with appropriate ESD precautions.
   • Avoid exceeding the absolute maximum ratings to prevent damage to the device.

(For reference only)