Details

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BUY LT1124CN8 https://www.utsource.net/itm/p/7671790.html
In Stock

Parameter	Description	Value	Unit
Input Voltage Range	Minimum to maximum input voltage	2.7 to 15.75	V
Output Voltage Range	Adjustable output voltage range	1.23 to 10	V
Quiescent Current	Supply current in shutdown mode	60	μA
Output Current Limit	Maximum continuous output current	1.5	A
Dropout Voltage	Typical dropout voltage at full load	0.8	V
PSRR at 100 kHz	Power supply rejection ratio	64	dB
Operating Temperature	Junction temperature range	-40 to 125	°C
Package Type	Component package type	8-Lead SOIC	-

Instructions for LT1124CN8:

1. Power Supply Connection:

   • Connect the input voltage between the IN pin and GND.
   • Ensure the input voltage is within the specified range (2.7V to 15.75V).

2. Output Voltage Configuration:

   • For adjustable output, connect a resistor divider between OUT, ADJ, and GND.
   • The output voltage can be set using the formula: Vout = 1.23 * (1 + R1/R2) where R1 is the resistor from OUT to ADJ, and R2 is the resistor from ADJ to GND.

3. Bypass Capacitors:

   • Place a 0.1μF ceramic capacitor between IN and GND close to the device.
   • A 1μF capacitor between OUT and GND is recommended for stability.

4. Thermal Considerations:

   • Ensure adequate heat sinking if operating near the upper limits of output current or input voltage.

5. Shutdown Functionality:

   • To enable the shutdown feature, apply a logic low to the SHDN pin to place the regulator in a low quiescent current state.
   • Apply a logic high or leave floating for normal operation.

6. PCB Layout:

   • Keep traces short and wide for power connections.
   • Ensure proper grounding and shielding to minimize noise interference.

7. Handling Precautions:

   • Handle with care to avoid damage to leads and package.
   • Follow ESD handling procedures to prevent damage.

(For reference only)