Details

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BUY LT1009CZ https://www.utsource.net/itm/p/12606055.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC	Operating Range	2.7	-	30	V
Quiescent Current	IQ	VOUT = 5V	-	2	4	渭A
Output Voltage	VOUT	No Load	0	1.24	30	V
Output Current	IOUT	Dropout	0	10	15	mA
Dropout Voltage	VDROP	IOUT = 10mA	-	0.3	1.0	V
Line Regulation	-	2.7V to 30V	-	0.01	0.05	%
Load Regulation	-	0mA to 15mA	-	0.01	0.05	%
Thermal Shutdown	TSHDN	-	-	160	-	掳C
Short-Circuit Current	ISC	Continuous	-	30	50	mA
Operating Temperature	TOP	-	-40	-	125	掳C

Instructions for Use:

1. Supply Voltage (V_CC):

   • Ensure the supply voltage is within the operating range of 2.7V to 30V.
   • Avoid exceeding the maximum voltage to prevent damage to the device.

2. Quiescent Current (I_Q):

   • The quiescent current is typically 2渭A at 5V output, but can vary between 2渭A and 4渭A.
   • This low current consumption makes the LT1009CZ suitable for battery-powered applications.

3. Output Voltage (V_OUT):

   • The output voltage can be adjusted from 0V to 30V, depending on the external components used.
   • For fixed output voltages, use appropriate resistors or refer to the datasheet for specific configurations.

4. Output Current (I_OUT):

   • The device can provide up to 15mA of output current.
   • For higher currents, consider using a different regulator or additional circuitry.

5. Dropout Voltage (V_DROP):

   • The dropout voltage is typically 0.3V at 10mA output current, with a maximum of 1.0V.
   • Ensure the input voltage is at least 0.3V above the desired output voltage to maintain regulation.

6. Line and Load Regulation:

   • Both line and load regulation are excellent, with typical values of 0.01%.
   • These parameters ensure stable output voltage over a wide range of input voltages and load conditions.

7. Thermal Shutdown (T_SHDN):

   • The device has thermal shutdown protection that activates at approximately 160掳C.
   • Ensure adequate heat dissipation to avoid reaching this temperature.

8. Short-Circuit Current (I_SC):

   • The short-circuit current is limited to protect the device, typically ranging from 30mA to 50mA.
   • Use appropriate fuses or current-limiting resistors to protect the circuit from prolonged short circuits.

9. Operating Temperature (T_OP):

   • The device operates reliably over a temperature range from -40掳C to 125掳C.
   • Ensure the operating environment does not exceed these limits to avoid performance degradation or failure.

For detailed application notes and further information, refer to the LT1009CZ datasheet provided by Linear Technology (now part of Analog Devices).

(For reference only)