Details

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Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Continuous	2.7	-	5.5	V
Output Voltage	VOUT	Adjustable	0.8	-	5.0	V
Output Current	IOUT	Continuous	-	300	-	mA
Quiescent Current	IQ	VOUT = 3.3V	-	1.5	-	渭A
Shutdown Current	ISD	VOUT = 3.3V	-	0.1	-	渭A
Efficiency	畏	VOUT = 3.3V, IOUT = 300mA	-	90	-	%
Switching Frequency	fSW	Fixed	-	1.2	-	MHz
Dropout Voltage	VDROPOUT	IOUT = 300mA, VOUT = 3.3V	-	300	-	mV
Operating Temperature	TOPR	Storage	-40	-	85	掳C
Junction Temperature	TJ	Maximum	-	-	125	掳C

Instructions for Use

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 2.7V to 5.5V.
   • Do not exceed the maximum input voltage to avoid damaging the device.

2. Output Voltage (VOUT):

   • The output voltage can be adjusted from 0.8V to 5.0V.
   • Use the external resistor divider to set the desired output voltage.

3. Output Current (IOUT):

   • The device can provide up to 300mA continuously.
   • Ensure the load does not exceed this current to maintain stable operation.

4. Quiescent Current (IQ):

   • The quiescent current is typically 1.5渭A at VOUT = 3.3V.
   • This low quiescent current helps in extending battery life in portable applications.

5. Shutdown Current (ISD):

   • When the shutdown pin is active, the device draws only 0.1渭A.
   • Use this feature to minimize power consumption when the device is not in use.

6. Efficiency (畏):

   • The efficiency is typically 90% at VOUT = 3.3V and IOUT = 300mA.
   • High efficiency reduces heat generation and improves overall system performance.

7. Switching Frequency (fSW):

   • The switching frequency is fixed at 1.2MHz.
   • This high-frequency operation allows the use of smaller external components.

8. Dropout Voltage (VDROPOUT):

   • The dropout voltage is typically 300mV at IOUT = 300mA and VOUT = 3.3V.
   • A lower dropout voltage ensures better regulation and performance under varying load conditions.

9. Operating Temperature (TOPR):

   • The device operates reliably over a temperature range of -40掳C to 85掳C.
   • Avoid exposing the device to temperatures outside this range to prevent damage.

10. Junction Temperature (TJ):

    • The maximum junction temperature is 125掳C.
    • Ensure proper thermal management to keep the junction temperature below this limit.

Additional Notes:

• Always refer to the datasheet for detailed information and specific application notes.
• Use appropriate decoupling capacitors on the input and output to ensure stable operation.
• For optimal performance, follow the recommended PCB layout guidelines provided in the datasheet.

(For reference only)