Details

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BUY ISL8489EIBZ https://www.utsource.net/itm/p/11239810.html
IC TRANSCEIVER FULL 1/1 14SOIC

Parameter	Description	Min	Typ	Max	Unit
Input Voltage (VIN)	Operating input voltage range	2.7	-	5.5	V
Output Voltage (VOUT)	Adjustable output voltage range	0.6	-	3.6	V
Output Current (IOUT)	Continuous output current	-	3	4	A
Switching Frequency (fSW)	Fixed switching frequency	-	1.5	-	MHz
Efficiency (η)	Typical efficiency at nominal conditions	-	93	-	%
Quiescent Current (IQ)	Quiescent current at no load	-	25	-	μA
Shutdown Current (ISD)	Shutdown current	-	1	-	μA
Soft-Start Time (tSS)	Soft-start time	-	4	-	ms
Thermal Shutdown Temperature (TSD)	Thermal shutdown temperature	-	160	-	°C
Operating Temperature (TA)	Operating ambient temperature range	-40	-	125	°C
Storage Temperature (TSTG)	Storage temperature range	-65	-	150	°C
Package	Package type	-	8-pin SOIC	-	-

Instructions for Use:

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 2.7V to 5.5V.
   • Use appropriate input capacitors to stabilize the input voltage.

2. Output Voltage (VOUT):

   • Set the output voltage using the feedback resistor network. The formula for setting VOUT is: VOUT = 0.6 * (1 + R1/R2), where R1 and R2 are the feedback resistors.
   • Use a low ESR output capacitor to minimize output ripple.

3. Output Current (IOUT):

   • The device can provide up to 4A of continuous output current. For higher currents, ensure proper heat dissipation and use external components as needed.

4. Switching Frequency (fSW):

   • The fixed switching frequency is 1.5MHz. This helps in reducing the size of external components like inductors and capacitors.

5. Efficiency (η):

   • The typical efficiency is around 93% under nominal conditions. Optimize the design by selecting efficient external components and ensuring good thermal management.

6. Quiescent Current (IQ):

   • The quiescent current is typically 25μA at no load, which helps in minimizing power consumption in low-power applications.

7. Shutdown Current (ISD):

   • The shutdown current is typically 1μA. Use the shutdown pin to control the operation of the device.

8. Soft-Start Time (tSS):

   • The soft-start time is typically 4ms, which helps in preventing inrush current during startup.

9. Thermal Shutdown (TSD):

   • The device will shut down if the junction temperature exceeds 160°C. Ensure adequate cooling to prevent thermal shutdown.

10. Operating Temperature (TA):

    • The operating ambient temperature range is from -40°C to 125°C. Ensure the device operates within this range to avoid damage.

11. Storage Temperature (TSTG):

    • The storage temperature range is from -65°C to 150°C. Store the device in a suitable environment to prevent damage.

12. Package:

    • The device comes in an 8-pin SOIC package. Follow standard PCB layout guidelines for proper mounting and soldering.

Additional Notes:

• Always refer to the datasheet for detailed information and specific application notes.
• Ensure all external components are rated for the expected operating conditions.
• Proper PCB layout and grounding practices are crucial for optimal performance.

(For reference only)