Description
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
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.
Output Configuration:
- The device provides a fixed output voltage of 1.8V. No external resistors are required for setting the output voltage.
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.
Thermal Considerations:
- For applications requiring higher load currents, ensure adequate heat dissipation or consider using a heatsink.
Shutdown Feature:
- To place the device in shutdown mode, pull the SHDN pin low. This reduces the current consumption to approximately 0.5μA.
Bypass Capacitors:
- Place a 1μF bypass capacitor between the VIN and GND pins close to the device to improve transient response and stability.
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.
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.
Storage and Handling:
- Store the device in an ESD-safe environment and handle with care to prevent damage from electrostatic discharge.
(For reference only)
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