Details

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BUY DK431 https://www.utsource.net/itm/p/12606019.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	-	V	Regulated output voltage
Output Current	I_OUT	-	250	300	mA	Maximum continuous output current
Quiescent Current	I_Q	-	20	30	渭A	Quiescent current at no load
Dropout Voltage	V_DO	-	200	300	mV	Typical dropout voltage
Load Regulation	-	-	0.5	1.0	%	Change in output voltage with load
Line Regulation	-	-	0.1	0.5	%/V	Change in output voltage with input
Ripple Rejection	-	60	70	80	dB	Attenuation of input ripple
Operating Temp.	T_OP	-40	-	85	掳C	Operating temperature range
Storage Temp.	T_STG	-55	-	150	掳C	Storage temperature range

Instructions for Use:

1. Input Connection:

   • Connect the input voltage (V_IN) to the Vin pin. Ensure the input voltage is within the specified range (2.7V to 5.5V).

2. Output Connection:

   • Connect the output voltage (V_OUT) to the Vout pin. The regulated output voltage is typically 3.3V.

3. Ground Connection:

   • Connect the ground (GND) to the GND pin. Ensure a solid ground connection to maintain stability and performance.

4. Capacitors:

   • Place a 1渭F ceramic capacitor close to the input pin to filter out noise and stabilize the input voltage.
   • Place a 1渭F ceramic capacitor close to the output pin to filter out any ripple and ensure stable output.

5. Thermal Considerations:

   • Ensure adequate heat dissipation if operating at high output currents or in high ambient temperatures. The device can operate up to 85掳C, but thermal management is crucial for reliability.

6. Load Regulation:

   • The output voltage may vary slightly with changes in load. The typical load regulation is 0.5% to 1.0%.

7. Line Regulation:

   • The output voltage may vary slightly with changes in input voltage. The typical line regulation is 0.1% to 0.5% per volt.

8. Ripple Rejection:

   • The device provides good ripple rejection, typically 60 to 80 dB, which helps in maintaining a clean output voltage even with noisy inputs.

9. Storage and Handling:

   • Store the device in a dry environment within the temperature range of -55掳C to 150掳C. Handle with care to avoid damage to the pins and the device itself.

10. Safety Precautions:

    • Do not exceed the maximum ratings specified in the table to avoid damage to the device.
    • Ensure proper grounding and use appropriate circuit protection (e.g., fuses, diodes) to safeguard against overvoltage and reverse polarity conditions.

(For reference only)