Details

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Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating Range	2.7	-	5.5	V
Output Voltage Range	VOUT	Adjustable	0.8	-	5.0	V
Quiescent Current	IQ	No Load, VOUT = 1.8V	-	1.9	-	μA
Dropout Voltage	VDROPOUT	IOUT = 100mA, VOUT = 1.8V	-	0.4	-	V
Load Regulation		IOUT = 0 to 100mA, VOUT = 1.8V	-	0.2	-	%
Line Regulation		VIN = 2.7 to 5.5V, VOUT = 1.8V	-	0.05	-	%/V
PSRR (Power Supply Rejection Ratio)		f = 1kHz, VOUT = 1.8V	-	70	-	dB
Operating Temperature	TOPR	Junction Temperature	-40	-	125	°C
Storage Temperature	TSTG	-	-40	-	150	°C

Instructions for Use:

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 2.7V to 5.5V.
   • Use appropriate decoupling capacitors (typically 1μF ceramic) close to the VIN and GND pins to minimize noise and stabilize the input voltage.

2. Output Voltage (VOUT):

   • The output voltage can be adjusted using external resistors R1 and R2.
   • The formula to calculate VOUT is: ( VOUT = 0.8 times (1 + frac) ).
   • Choose resistor values to achieve the desired output voltage within the range of 0.8V to 5.0V.

3. Quiescent Current (IQ):

   • The quiescent current is typically 1.9μA when no load is applied and VOUT is set to 1.8V.
   • This low quiescent current makes the device suitable for battery-powered applications.

4. Dropout Voltage (VDROPOUT):

   • The dropout voltage is typically 0.4V at an output current of 100mA and VOUT = 1.8V.
   • Ensure that the input voltage is at least 0.4V higher than the desired output voltage to maintain regulation.

5. Load Regulation:

   • The load regulation is typically 0.2% when the load current varies from 0 to 100mA with VOUT = 1.8V.
   • This indicates the stability of the output voltage under varying load conditions.

6. Line Regulation:

   • The line regulation is typically 0.05%/V when the input voltage varies from 2.7V to 5.5V with VOUT = 1.8V.
   • This parameter ensures that the output voltage remains stable even if the input voltage fluctuates.

7. PSRR (Power Supply Rejection Ratio):

   • The PSRR is typically 70dB at 1kHz with VOUT = 1.8V.
   • This high PSRR helps in filtering out noise from the input supply, maintaining a clean output voltage.

8. Operating Temperature (TOPR):

   • The device is designed to operate within a junction temperature range of -40°C to 125°C.
   • Ensure adequate heat dissipation if operating near the upper temperature limit.

9. Storage Temperature (TSTG):

   • Store the device in an environment with temperatures ranging from -40°C to 150°C.

Additional Notes:

• Always refer to the datasheet for detailed information and specific application notes.
• Proper PCB layout and component selection are crucial for optimal performance.
• For more complex applications, consider using additional components such as bypass capacitors, inductors, or diodes as recommended in the datasheet.

(For reference only)