Details

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BUY TPS61220DCKR https://www.utsource.net/itm/p/8392554.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating	1.8	-	5.5	V
Output Voltage	VOUT	Fixed	-	3.3	-	V
Switching Frequency	fSW	Typical	-	2.2	-	MHz
Efficiency	η	VIN = 3.6V, IOUT = 500mA	-	94	-	%
Quiescent Current	IQ	VIN = 3.6V	-	27	-	μA
Load Transient Response	ΔVOUT	IOUT from 0 to 500mA	-	±30	-	mV
Start-up Time	tSTART	VIN rising from 0V	-	200	-	μs

Instructions for TPS61220DCKR

1. Input Capacitor Selection:

   • Choose an input capacitor with low ESR (Equivalent Series Resistance) and a voltage rating higher than the maximum input voltage.
   • Recommended ceramic capacitors with X5R or X7R dielectric.

2. Output Capacitor Selection:

   • Select an output capacitor that can maintain stable output voltage under load changes.
   • A ceramic capacitor with X5R or X7R dielectric is recommended.

3. Inductor Selection:

   • Use an inductor with a saturation current rating higher than the peak inductor current.
   • The inductance value should be chosen based on the desired ripple current.

4. Layout Considerations:

   • Place the input capacitor as close as possible to the VIN and GND pins.
   • Keep the trace lengths between the IC and external components short to minimize parasitic inductance and resistance.

5. Thermal Management:

   • Ensure adequate heat dissipation by providing a good thermal path, such as a copper plane connected to the exposed pad of the device.

6. Application Circuit:

   • Refer to the datasheet for a typical application circuit diagram to ensure all connections are correct and optimized for performance.

For detailed specifications and more information, refer to the official datasheet provided by Texas Instruments.

(For reference only)