Details

---

BUY LTC3850EUF#TRPBF https://www.utsource.net/itm/p/12543044.html

Parameter	Description	Min	Typ	Max	Unit
Input Voltage (VIN)	Operating input voltage range	2.9	-	20	V
Output Voltage (VOUT)	Adjustable output voltage range	0.6	-	5.5	V
Switching Frequency (fSW)	Adjustable switching frequency	200	-	750	kHz
Current Limit (IOUT)	Maximum continuous output current	-	-	20	A
Efficiency (η)	Typical efficiency at full load	-	94	-	%
Quiescent Current (IQ)	Quiescent current at no load	-	60	-	μA
Shutdown Current (ISD)	Shutdown current	-	1	-	μA
Thermal Shutdown (TSD)	Thermal shutdown temperature	-	-	160	°C
Operating Temperature (TA)	Operating ambient temperature range	-40	-	125	°C
Storage Temperature (TSTG)	Storage temperature range	-65	-	150	°C
Package	Package type	-	-	-	4x4 mm QFN-24

Instructions for Use:

1. Input Voltage (VIN):

   • Ensure the input voltage is within the specified range of 2.9V to 20V.
   • Use appropriate input capacitors to stabilize the input voltage.

2. Output Voltage (VOUT):

   • Set the output voltage using the feedback resistor network. The formula for calculating the feedback resistors is: [ V_ = V_ left(1 + fracright) ] where ( V_ = 0.6V ).

3. Switching Frequency (fSW):

   • Adjust the switching frequency by selecting the appropriate value for the RT resistor. The formula for calculating the RT resistor is: [ f_ = frac{1.44 times 10^6} ]

4. Current Limit (IOUT):

   • The maximum continuous output current is 20A. Ensure the inductor and other components can handle this current.

5. Efficiency (η):

   • Optimize the design for high efficiency by selecting low resistance MOSFETs and minimizing parasitic losses.

6. Quiescent Current (IQ):

   • The quiescent current is 60μA at no load. This is important for low-power applications.

7. Shutdown Current (ISD):

   • The shutdown current is 1μA, which helps in reducing power consumption when the device is not in use.

8. Thermal Shutdown (TSD):

   • The device will shut down if the junction temperature exceeds 160°C. Ensure proper heat dissipation and thermal management.

9. Operating Temperature (TA):

   • The operating ambient temperature range is -40°C to 125°C. Ensure the device is used within this range to avoid damage.

10. Storage Temperature (TSTG):

    • Store the device in a temperature range of -65°C to 150°C to prevent damage during storage.

11. Package:

    • The LTC3850EUF#TRPBF is available in a 4x4 mm QFN-24 package. Follow the recommended PCB layout guidelines for optimal performance and thermal management.

(For reference only)