Details

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BUY AN5435 https://www.utsource.net/itm/p/12607333.html

Parameter	Description	Min	Typ	Max	Unit
Input Voltage (VIN)	Operating input voltage range	2.7	-	5.5	V
Output Voltage (VOUT)	Adjustable output voltage	0.8	-	VIN - 0.3	V
Output Current (IOUT)	Maximum continuous output current	-	1.5	-	A
Quiescent Current (IQ)	Supply current when no load	-	2.5	-	渭A
Shutdown Current (ISD)	Current consumption in shutdown mode	-	0.1	-	渭A
Dropout Voltage (VDO)	Difference between VIN and VOUT at IOUT = 500mA	-	0.3	-	V
Load Regulation	Change in VOUT with respect to load current	-	0.2	-	%
Line Regulation	Change in VOUT with respect to input voltage	-	0.05	-	%
Ripple Rejection	Ability to reject input ripple	-	60	-	dB
Operating Temperature (TA)	Ambient temperature range	-40	-	85	掳C
Storage Temperature (TSTG)	Temperature range for storage	-65	-	150	掳C

Instructions for AN5435:

1. Input Voltage (VIN):

   • Ensure the input voltage is within the specified range of 2.7V to 5.5V.
   • Use a stable power supply to avoid fluctuations that can affect performance.

2. Output Voltage (VOUT):

   • Set the output voltage using the external resistor divider network.
   • The output voltage can be adjusted from 0.8V up to the input voltage minus 0.3V.

3. Output Current (IOUT):

   • The maximum continuous output current is 1.5A. Ensure the load does not exceed this limit to prevent damage.
   • For higher currents, consider using a heat sink or a more robust power supply solution.

4. Quiescent Current (IQ):

   • The quiescent current is typically 2.5渭A, which helps in minimizing power consumption when the device is active but under no load.

5. Shutdown Current (ISD):

   • When the device is in shutdown mode, the current consumption drops to 0.1渭A, which is useful for battery-powered applications.

6. Dropout Voltage (VDO):

   • The dropout voltage is typically 0.3V at an output current of 500mA. This means the input voltage must be at least 0.3V higher than the output voltage to maintain regulation.

7. Load Regulation:

   • The load regulation is 0.2%, indicating that the output voltage will change by only 0.2% for changes in load current.

8. Line Regulation:

   • The line regulation is 0.05%, meaning the output voltage will change by only 0.05% for changes in input voltage.

9. Ripple Rejection:

   • The device has a ripple rejection of 60dB, effectively reducing input ripple from the power supply to the output.

10. Operating Temperature (TA):

    • The device operates reliably within the ambient temperature range of -40掳C to 85掳C. Ensure adequate cooling if operating near the upper limit.

11. Storage Temperature (TSTG):

    • The device can be stored within the temperature range of -65掳C to 150掳C without damage.

12. PCB Layout Considerations:

    • Place the input and output capacitors close to the device to minimize inductance and improve stability.
    • Use a ground plane to reduce noise and improve thermal performance.

13. Thermal Management:

    • If operating at high output currents, ensure proper heat dissipation to keep the junction temperature within safe limits.
    • Consider using a heat sink or thermal pad if necessary.

14. Capacitor Selection:

    • Use low ESR (Equivalent Series Resistance) capacitors for both input and output to ensure stability and efficiency.
    • Typical values for input capacitance are 1渭F to 10渭F, and for output capacitance, 1渭F to 100渭F.

By following these guidelines, you can ensure optimal performance and reliability of the AN5435 in your application.

(For reference only)