Details

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BUY SY8120B1ABC SOT236 https://www.utsource.net/itm/p/11530826.html

Parameter	Symbol	Min	Typ	Max	Unit	Notes
Input Voltage	VIN	2.7	-	5.5	V
Output Voltage	VOUT	-	1.2	-	V	Fixed
Output Current	IOUT	-	200	300	mA	Continuous
Quiescent Current	IQ	-	30	50	渭A	Shutdown mode: <1 渭A
Dropout Voltage	VDO	-	200	300	mV	At IOUT = 300 mA
PSRR at 1 kHz	-	-	60	-	dB
Operating Temperature	TOP	-40	-	125	掳C
Storage Temperature	TSTG	-65	-	150	掳C

Instructions:

1. Mounting and Handling:

   • Ensure proper handling to avoid damage from electrostatic discharge (ESD).
   • Follow standard SMT (Surface Mount Technology) procedures for mounting on PCBs.

2. Input Capacitor:

   • Use a ceramic capacitor with X7R or better dielectric, typically 1 渭F, placed as close as possible to the input pin.
   • For improved stability, a larger value (e.g., 10 渭F) can be used if needed.

3. Output Capacitor:

   • Use a ceramic capacitor with X7R or better dielectric, typically 1 渭F, placed as close as possible to the output pin.
   • A tantalum capacitor can also be used but is not recommended due to potential instability issues.

4. Thermal Considerations:

   • The device is designed to operate within its specified temperature range. Ensure adequate heat dissipation if operating at high output currents or in high ambient temperatures.
   • Consider using a heatsink or thermal vias to improve thermal performance.

5. PCB Layout:

   • Keep the input and output capacitors as close as possible to the respective pins to minimize parasitic inductance.
   • Use wide traces for power lines to reduce resistance and inductance.
   • Ensure a good ground plane to provide a low-impedance path for return currents.

6. Shutdown Function:

   • The shutdown function is controlled by the EN (Enable) pin. Apply a logic high (V_IN) to enable the device and a logic low (GND) to disable it.
   • When disabled, the quiescent current drops to less than 1 渭A.

7. Overcurrent Protection:

   • The device includes overcurrent protection to prevent damage under short-circuit conditions. It will automatically shut down and restart after a brief delay.

8. Package Information:

   • The SY8120B1ABC is available in a SOT23-6 package.
   • Pin configuration:
     • Pin 1: GND (Ground)
     • Pin 2: IN (Input)
     • Pin 3: OUT (Output)
     • Pin 4: NC (No Connect)
     • Pin 5: EN (Enable)
     • Pin 6: NC (No Connect)

9. Storage:

   • Store in a dry environment to prevent moisture absorption.
   • Follow the recommended storage and handling guidelines to ensure reliability and performance.

For detailed application notes and further information, refer to the datasheet provided by the manufacturer.

(For reference only)