Details

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BUY LM2935T https://www.utsource.net/itm/p/8022644.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN		2.7		60	V
Output Voltage	VOUT		1.23		58.8	V
Dropout Voltage	VD	IOUT = 1A		0.4		V
Quiescent Current	IQ	VIN = 5V		5		μA
Load Regulation		IOUT = 0mA to 1A		0.01		%
Line Regulation		VIN = 3V to 60V		0.01		%
Transient Response		dIOUT/dt = 5A/μs		0.1		V
Ripple Rejection		f = 120Hz		70		dB
Operating Temperature	Toper		-40		125	°C
Storage Temperature	Tstg		-65		150	°C

Instructions for LM2935T

1. Power Supply Connection:

   • Connect the input voltage (VIN) to the input pin.
   • Ensure the input voltage is within the range of 2.7V to 60V.

2. Output Configuration:

   • Set the desired output voltage using external resistors if adjustable version is used.
   • The fixed output versions do not require external components for setting the output voltage.

3. Ground Connection:

   • Connect the ground (GND) pin directly to the common ground of the circuit.

4. Capacitor Requirements:

   • Use a 1μF capacitor from the output to ground for stability.
   • For better transient response, a 10μF capacitor can be added at the input.

5. Thermal Considerations:

   • Ensure adequate heat sinking if operating near maximum load conditions to maintain junction temperature within limits.

6. Transient Protection:

   • Include transient protection devices if the input voltage source is prone to spikes or surges.

7. Layout Guidelines:

   • Keep leads short and direct to minimize noise pickup.
   • Place the regulator close to the load to reduce trace resistance and inductance.

8. Operating Temperature:

   • Ensure the ambient temperature does not exceed 125°C for reliable operation.

9. Storage Temperature:

   • Store the device in an environment where temperatures do not fall below -65°C or exceed 150°C.

(For reference only)