Texas Instruments TPS61230A

Beschreibung

The TPS61230A device is a high efficiency fullyintegrated synchronous boost converter. It integrates6-A, 21-mΩ and 18-mΩ power switches, which iscapable of delivering up to 2.4-A output current at 5-Voutput with the 2.5-V input supply. The low RDS_ONswitches enable the power conversion efficiency up to96% and minimize the thermal stress in very compactsolution size.The typical operating frequency is 1.15 MHz, whichallows the use of small inductor and capacitors toachieve a small solution size. The TPS61230Aprovides an adjustable output voltage via an externalresistor divider.During the light load condition, the TPS61230Aautomatically enters into the PFM operation formaximizing the efficiency with the lowest quiescentcurrent. In the shutdown by pulling EN pin to the logiclow, the load is completely disconnected from theinput, and the input current consumption is reducedto below 1.0 μA.When the output is shorted, the device enters into thehiccup protection mode and recovery automaticallywhen the output short is released. Other features likethe output over voltage protection, thermal shutdownprotection are integrated.The device is available in a 2.00-mm x 2.00-mm x0.9-mm VQFN package and requires the minimumamount of external components.

Eigenschaften

Input Voltage Range: 2.5 V to 4.5 V

• Output Voltage Range: 2.5 V to 5.5 V
• Two 21-mΩ (LS) / 18-mΩ (HS) MOSFETs
• 20-μA Quiescent Current
• 6-A Valley Switching Current Limit
• 1.15-MHz Quasi-Constant Switching Frequency
• PFM Operation at the Light Load
• 1.05-ms Soft Start Time
• True Load Disconnect
• NOT Support Vin > Vout Operation
• Output Short Protection
• Over Voltage Protection
• Thermal Shutdown
• 2.0-mm x 2.0-mm VQFN 7-Pin Package

Typische Anwendungen

• Power Banks, Battery Backup Units,USB Power Supply,Battery Powered Products
• Tablet PCs
• Audio Power Amplifier

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers