Details

---

BUY ADP51B63 https://www.utsource.net/itm/p/12611799.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	-	2.7	-	5.5	V
Output Voltage	VOUT	-	-	3.3	-	V
Quiescent Current	IQ	VIN = 3.6V, No Load	-	10	-	μA
Shutdown Current	ISD	VIN = 3.6V, SHDN = 0V	-	0.1	-	μA
Load Regulation	ΔVOUT	ILOAD = 1mA to 200mA	-	20	-	mV
Line Regulation	ΔVOUT	VIN = 2.7V to 5.5V	-	10	-	mV
Dropout Voltage	VDROPOUT	ILOAD = 200mA	-	200	-	mV
Power Supply Rejection Ratio	PSRR	f = 1kHz	-	70	-	dB
Operating Temperature	TOPR	-	-40	-	85	°C

Instructions for Use:

1. Power Supply Connection:

   • Connect the input voltage (VIN) between 2.7V and 5.5V to the appropriate pin.
   • Ensure that the power supply is stable and within the specified range to avoid damage.

2. Output Configuration:

   • The output voltage (VOUT) is fixed at 3.3V. Verify this matches your system requirements.

3. Quiescent and Shutdown States:

   • For low-power applications, monitor the quiescent current which is typically 10μA.
   • To place the device in shutdown mode, set the shutdown pin (SHDN) to 0V, reducing the current draw to approximately 0.1μA.

4. Load and Line Regulation:

   • The device maintains good load regulation with a typical variation of 20mV over the load range from 1mA to 200mA.
   • Line regulation is also maintained well, with a typical change of 10mV across the input voltage range.

5. Dropout Voltage:

   • Be aware of the dropout voltage, which is around 200mV at a load current of 200mA. This affects the minimum input voltage required to maintain regulation.

6. Power Supply Rejection Ratio (PSRR):

   • At 1kHz, the PSRR is typically 70dB, indicating effective suppression of ripple from the input voltage.

7. Operating Temperature:

   • Ensure the operating temperature stays within -40°C to +85°C to maintain reliable operation.

8. Capacitor Selection:

   • Choose appropriate input and output capacitors as recommended in the datasheet to stabilize the regulator and improve transient response.

9. Layout Considerations:

   • Follow proper PCB layout guidelines to minimize noise and parasitic effects, ensuring optimal performance of the ADP51B63.

For detailed specifications and further instructions, refer to the official datasheet provided by the manufacturer.

(For reference only)