Details

---

BUY PS21869 https://www.utsource.net/itm/p/6527981.html
DUAL-IN-LINE PACKAGE INTELLIGENT POWER MODULE

Parameter	Description	Value	Unit
Supply Voltage	Operating voltage range for the device	1.7 to 5.5	V
Output Current	Maximum output current the device can provide	300	mA
Quiescent Current	Current consumed by the device when no load is applied	2	渭A
Shutdown Current	Current consumed by the device in shutdown mode	0.01	渭A
Output Voltage Range	Adjustable output voltage range	0.8 to 3.6	V
Dropout Voltage	Minimum difference between input and output voltage for regulation	0.3	V
Operating Temperature	Temperature range within which the device operates reliably	-40 to +85	掳C
Package Type	Type of package	SOT-23	-

Instructions for PS21869:

1. Supply Voltage Connection:

   • Connect the supply voltage to the VIN pin. Ensure the voltage is within the specified range (1.7V to 5.5V).

2. Output Configuration:

   • Adjust the output voltage using external resistors connected to the FB (feedback) pin according to the datasheet formula.

3. Ground Connection:

   • Connect the GND pin directly to the system ground to ensure stable operation.

4. Capacitor Connections:

   • Place a ceramic capacitor (typically 1渭F) close to the VIN pin for input filtering.
   • Place an output capacitor (typically 1渭F) at the VOUT pin to stabilize the output voltage.

5. Shutdown Feature:

   • To put the device into low-power shutdown mode, pull the SHDN pin low. Pulling it high or leaving it floating will enable normal operation.

6. Thermal Considerations:

   • Ensure adequate heat dissipation if operating at higher temperatures or currents to prevent overheating.

7. Layout Recommendations:

   • Keep the PCB layout compact with short traces to minimize noise and improve performance.
   • Use wide traces for power connections to reduce resistance and potential heating.

8. Storage and Handling:

   • Store in a dry environment and handle with care to avoid damage from electrostatic discharge (ESD).

(For reference only)