Details

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BUY ADM1815-R23ART-RL7 https://www.utsource.net/itm/p/12382531.html

Parameter	Symbol	Min	Typ	Max	Unit	Notes
Input Voltage	VIN	2.7	-	5.5	V
Output Voltage	VOUT	-	1.8	-	V	Fixed
Output Current	IOUT	-	200	-	mA
Quiescent Current	IQ	-	1.5	-	μA
Dropout Voltage	VD	-	250	-	mV	@ IOUT = 100 mA
Load Regulation	-	-	0.5	-	%	0 mA to 200 mA
Line Regulation	-	-	0.05	-	%/V	VIN = 2.7 V to 5.5 V
Power Supply Rejection Ratio (PSRR)	-	-	60	-	dB	@ 1 kHz
Operating Temperature	TOPR	-40	-	125	°C
Storage Temperature	TSTG	-65	-	150	°C
Package Type	-	-	SOT-23-5	-	-

Instructions:

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 2.7 V to 5.5 V to avoid damage to the device.

2. Output Voltage (VOUT):

   • The output voltage is fixed at 1.8 V. No external components are required for voltage setting.

3. Output Current (IOUT):

   • The device can provide up to 200 mA of output current. Ensure the load does not exceed this limit to prevent overheating or damage.

4. Quiescent Current (IQ):

   • The quiescent current is typically 1.5 μA, which is very low, making the device suitable for battery-powered applications.

5. Dropout Voltage (VD):

   • The dropout voltage is typically 250 mV at an output current of 100 mA. This means the input voltage should be at least 250 mV higher than the output voltage to ensure proper regulation.

6. Load Regulation:

   • The load regulation is 0.5%, indicating that the output voltage will vary by only 0.5% over the entire load range from 0 mA to 200 mA.

7. Line Regulation:

   • The line regulation is 0.05% per volt, meaning the output voltage will change by 0.05% for each volt change in the input voltage.

8. Power Supply Rejection Ratio (PSRR):

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

9. Operating Temperature (TOPR):

   • The device can operate in temperatures ranging from -40°C to 125°C. Ensure the ambient temperature is within this range to maintain reliable operation.

10. Storage Temperature (TSTG):

    • Store the device in temperatures between -65°C and 150°C to prevent damage.

11. Package Type:

    • The device is packaged in a SOT-23-5 package, which is compact and suitable for surface-mount applications.

Additional Notes:

• Capacitors:
  • Use a 1 μF ceramic capacitor on the input side and a 1 μF ceramic capacitor on the output side for stability.
• PCB Layout:
  • Keep the PCB traces short and wide to minimize inductance and resistance, especially for the input and output capacitors.
• Thermal Considerations:
  • If the device is expected to operate near its maximum current, ensure adequate heat dissipation by using a larger copper area or a heatsink.

(For reference only)