Details

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BUY ISL95808HRZ-T https://www.utsource.net/itm/p/12378196.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating Range	2.7	-	5.5	V
Output Voltage	VOUT	Fixed Output Voltage	-	3.3	-	V
Output Current	IOUT	Continuous	-	1.5	2.0	A
Quiescent Current	IQ	VIN = 3.6V, VOUT = 3.3V, IOUT = 0A	-	20	-	μA
Dropout Voltage	VDROPOUT	IOUT = 1A	-	280	-	mV
Power Supply Rejection Ratio	PSRR	@ 1kHz	-	60	-	dB
Load Transient Response	VLOAD_TRANSIENT	ΔIOUT = 0 to 1A, t = 1ms	-	±50	-	mV
Line Transient Response	VLINE_TRANSIENT	ΔVIN = 2.7 to 5.5V, t = 1ms	-	±50	-	mV

Instructions for ISL95808HRZ-T

1. Input Voltage (VIN):

   • Ensure the input voltage is within the operating range of 2.7V to 5.5V.

2. Output Configuration:

   • The device provides a fixed output voltage of 3.3V. No external components are required for voltage setting.

3. Output Current:

   • The regulator can supply up to 2.0A continuously, with a typical current of 1.5A.

4. Quiescent Current:

   • Keep the quiescent current in mind when designing low-power applications; it is typically 20μA under no-load conditions.

5. Dropout Voltage:

   • Be aware that the dropout voltage is around 280mV at 1A output current, ensuring sufficient headroom between VIN and VOUT.

6. Power Supply Rejection Ratio (PSRR):

   • The PSRR is 60dB at 1kHz, providing good noise rejection from the input supply.

7. Transient Response:

   • For load transients, the output voltage deviation should be within ±50mV for step changes from 0 to 1A.
   • For line transients, the output voltage deviation should also be within ±50mV for input voltage changes from 2.7V to 5.5V.

8. Thermal Considerations:

   • Ensure adequate heat dissipation if operating near the maximum output current or in high ambient temperatures.

9. PCB Layout:

   • Follow recommended PCB layout guidelines to minimize noise and ensure stable operation. Place the input and output capacitors close to the device for optimal performance.

10. Capacitor Selection:

    • Use low ESR ceramic capacitors for both input and output to ensure stability and transient response performance.

(For reference only)