Details

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BUY TL7702A https://www.utsource.net/itm/p/12611458.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	V_IN	Operating Range	2.7	-	5.5	V
Output Voltage	V_OUT	Fixed	-	1.8	-	V
Quiescent Current	I_Q	Normal Operation	10	30	50	μA
Shutdown Current	I_SHDN	In Shutdown Mode	0.1	0.5	1	μA
Load Current	I_LOAD	Maximum	-	-	100	mA
Dropout Voltage	V_DROPOUT	I_LOAD = 100mA	-	250	450	mV
PSRR (Power Supply Rejection Ratio)	PSRR	f = 120Hz	60	75	-	dB
Line Regulation	ΔV_OUT/ΔV_IN	I_LOAD = 100mA	-	0.01	-	%
Load Regulation	ΔV_OUT/ΔI_LOAD	V_IN = 5V	-	0.05	-	%

Instructions for TL7702A

1. Power Supply Connection:

   • Connect the input voltage (V_IN) between 2.7V and 5.5V to the VIN pin.
   • Ensure a stable power supply to maintain the quiescent current within limits.

2. Output Configuration:

   • The device provides a fixed output voltage of 1.8V. No external resistors are required for setting the output voltage.

3. Load Handling:

   • The device can support up to 100mA load current. Ensure that the load does not exceed this limit to avoid overheating or damage.

4. Thermal Considerations:

   • For applications requiring higher load currents, ensure adequate heat dissipation or consider using a heatsink.

5. Shutdown Feature:

   • To place the device in shutdown mode, pull the SHDN pin low. This reduces the current consumption to approximately 0.5μA.

6. Bypass Capacitors:

   • Place a 1μF bypass capacitor between the VIN and GND pins close to the device to improve transient response and stability.

7. PCB Layout:

   • Follow good PCB layout practices by minimizing trace lengths for power and ground connections and ensuring proper grounding to reduce noise and interference.

8. Operating Temperature Range:

   • The device is designed to operate over a temperature range from -40°C to +85°C. Ensure that the operating environment stays within these limits.

9. Storage and Handling:

   • Store the device in an ESD-safe environment and handle with care to prevent damage from electrostatic discharge.

(For reference only)