Details

---

BUY DS88LS120N https://www.utsource.net/itm/p/12611254.html

Below is the parameter table and instructions for the DS88LS120N, a low-dropout linear regulator.

DS88LS120N Parameter Table

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	-	2.7	-	5.5	V
Output Voltage	VOUT	Fixed	3.3	-	-	V
Output Current	IOUT	Continuous	-	120	-	mA
Dropout Voltage	VDROPOUT	IOUT = 120 mA	-	0.3	-	V
Quiescent Current	IQ	VIN = 5.5 V, IOUT = 0 mA	-	60	-	μA
Shutdown Current	ISD	VIN = 5.5 V, SHDN = 0 V	-	0.1	-	μA
Load Regulation	ΔVOUT/ΔIOUT	0 mA to 120 mA	-	0.1	-	%
Line Regulation	ΔVOUT/ΔVIN	2.7 V to 5.5 V	-	0.01	-	%
PSRR (Power Supply Rejection Ratio)	PSRR	1 kHz, IOUT = 10 mA	-	60	-	dB
Operating Temperature	Toperating	-	-40	-	125	°C
Storage Temperature	Tstorage	-	-65	-	150	°C

Instructions for DS88LS120N

1. Pin Configuration:

   • IN (Pin 1): Input Voltage
   • OUT (Pin 2): Output Voltage
   • GND (Pin 3): Ground
   • SHDN (Pin 4): Shutdown Control (Active Low)

2. Basic Operation:

   • Connect the input voltage (VIN) to Pin 1.
   • Connect the output voltage (VOUT) to Pin 2.
   • Connect the ground (GND) to Pin 3.
   • To enable the regulator, connect Pin 4 (SHDN) to GND or leave it floating. To disable the regulator, connect Pin 4 to VIN.

3. Capacitor Requirements:

   • Input Capacitor (CIN): A 1 μF ceramic capacitor should be placed as close as possible to the IN and GND pins.
   • Output Capacitor (COUT): A 1 μF ceramic capacitor should be placed as close as possible to the OUT and GND pins.

4. Thermal Considerations:

   • Ensure adequate heat dissipation if operating at high output currents or in high ambient temperatures.
   • The device is designed to operate within the specified temperature range, but thermal management is crucial for reliable operation.

5. Shutdown Mode:

   • When the SHDN pin is pulled low (0 V), the regulator enters shutdown mode, reducing the quiescent current to a minimum (typically 0.1 μA).

6. PCB Layout Recommendations:

   • Use wide traces for power and ground connections to minimize voltage drops and improve thermal performance.
   • Place bypass capacitors as close as possible to the regulator to ensure stable operation.

7. Handling Precautions:

   • Handle the device with care to avoid electrostatic discharge (ESD) damage.
   • Follow standard ESD protection guidelines during handling and assembly.

By following these instructions, you can ensure optimal performance and reliability of the DS88LS120N in your application.

(For reference only)