Details

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BUY TPS7A4701QRGWRQ1 https://www.utsource.net/itm/p/12612200.html

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Input Voltage	VIN	2.95	-	5.5	V	-
Output Voltage	VOUT	0.6	-	3.3	V	Adjustable
Output Current	IOUT	-	1	1.5	A	Continuous
Dropout Voltage	VDROPOUT	-	250	350	mV	@ IOUT = 1A, VIN = 3.3V
Quiescent Current	IQ	15	-	40	μA	No load, VIN = 3.3V
Shutdown Current	ISD	-	0.1	1	μA	VIN = 3.3V, EN = 0V
Load Regulation	ΔVOUT/ΔIOUT	-	0.1	0.5	%	0 ≤ IOUT ≤ 1A
Line Regulation	ΔVOUT/ΔVIN	-	0.01	0.05	%/V	2.95 ≤ VIN ≤ 5.5V
Power Supply Rejection Ratio (PSRR)	PSRR	60	-	80	dB	f = 1kHz, VIN = 3.3V, IOUT = 100mA
Operating Temperature Range	TOPR	-40	-	125	°C	-
Storage Temperature Range	TSTG	-65	-	150	°C	-

Instructions for Use:

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 2.95V to 5.5V.
   • Use appropriate decoupling capacitors (typically 1μF ceramic) close to the input pins to stabilize the input voltage.

2. Output Voltage (VOUT):

   • The output voltage can be adjusted using external resistors. The formula for calculating the output voltage is: [ V_ = V_ left(1 + fracright) ] where ( V_ = 0.6V ).

3. Output Current (IOUT):

   • The device can provide up to 1.5A of continuous output current, with a typical output current of 1A.

4. Dropout Voltage (VDROPOUT):

   • The dropout voltage is the difference between the input and output voltages when the device is operating near its maximum output current. It typically ranges from 250mV to 350mV at 1A output current and 3.3V input voltage.

5. Quiescent Current (IQ):

   • The quiescent current is the current drawn by the regulator when there is no load on the output. It is typically around 15μA and can go up to 40μA.

6. Shutdown Current (ISD):

   • When the enable pin (EN) is set to 0V, the device enters shutdown mode, drawing a very low current (0.1μA to 1μA).

7. Load Regulation:

   • The change in output voltage due to changes in load current should be kept within 0.1% to 0.5%.

8. Line Regulation:

   • The change in output voltage due to changes in input voltage should be kept within 0.01% to 0.05% per volt.

9. Power Supply Rejection Ratio (PSRR):

   • The PSRR indicates how well the regulator rejects ripple from the input voltage. At 1kHz, it is typically between 60dB and 80dB.

10. Operating Temperature Range (TOPR):

    • The device is designed to operate within a temperature range of -40°C to 125°C.

11. Storage Temperature Range (TSTG):

    • The device can be stored in temperatures ranging from -65°C to 150°C.

Additional Notes:

• Thermal Considerations:
  • Ensure proper thermal management to prevent overheating, especially under high load conditions.
• PCB Layout:
  • Place the input and output capacitors as close as possible to the regulator to minimize parasitic inductance and improve stability.
• Enable Pin (EN):
  • The enable pin can be used to control the operation of the regulator. Connecting it to a logic high level will turn the regulator on, while connecting it to a logic low level will turn it off.

(For reference only)