AX3515

丝印：3515；Dual High-Efficiency PWM Step-Down DC-DC Converter

GENERALDESCRIPTION TheAX3515isadualhigh-efficiencyPulse-Width-Modulated(PWM)step-downDC-DCconverter.Itiscapableofdelivering1Aoutputcurrentoverawideinputvoltagerangefrom2.5Vto5.5V,theAX3515isideallysuitedforportableelectronicdevicesthatarepoweredfrom1-c

AX3515

[DC-DC] Buck;

The AX3515 is a dual high-efficiency Pulse-Width-Modulated (PWM) step-down DC-DC converter. It is capable of delivering 1A output current over a wide input voltage range from 2.5V to 5.5V, the AX3515 is ideally suited for portable electronic devices that are powered from 1-cell Li-ion battery or from other power sources within the range such as cellular phones, PDAs and other handheld devices.Two operational modes are available: PWM/Low-Dropout auto-switch and shutdown modes. Internal synchronous rectifier with low RDS(ON) dramatically reduces conduction loss at PWM mode. No external Schottky diode is required in practical application.The AX3515 enters Low-Dropout mode when normal PWM cannot provide regulated output voltage by continuously turning on the upper PMOS. The AX3515 enter shutdown mode and consumes less than 0.1μA when EN pin is pulled low.The switching ripple is easily smoothed-out by small package filtering elements due to a fixed operation frequency of 1.4MHz. This along with small TDFN-12L (3x3) package provides small PCB area application. Other features include soft start, lower internal reference voltage with 2% accuracy, over temperature protection, and over current protection. \n

AX3515A

[DC-DC] Buck;

The AX3515A is a dual high-efficiency Pulse-Width-Modulated (PWM) step-downDC-DC converter. It is capable of delivering 1A output current over a wide input voltagerange from 2.5V to 5.5V, the AX3515A is ideally suited for portable electronic devices thatare powered from 1-cell Li-ion battery or from other power sources within the range such ascellular phones, PDAs and other handheld devices.Two operational modes are available: PWM/Low-Dropout auto-switch and shutdownmodes. Internal synchronous rectifier with low RDS(ON) dramatically reduces conductionloss at PWM mode. No external Schottky diode is required in practical application.The AX3515A enters Low-Dropout mode when normal PWM cannot provide regulatedoutput voltage by continuously turning on the upper PMOS. The AX3515A enter shutdownmode and consumes less than 0.1μA when EN pin is pulled low.The switching ripple is easily smoothed-out by small package filtering elements due toa fixed operation frequency of 1.4MHz. This along with small TDFN-10L (3x3) packageprovides small PCB area application. Other features include soft start, lower internalreference voltage with 2% accuracy, over temperature protection, and over currentprotection.\n

AX3515A

丝印：3515A；Dual High Efficiency PWM Step-Down DC-DC Converter

GENERALDESCRIPTION TheAX3515Aisadualhigh-efficiencyPulse-Width-Modulated(PWM)step-downDC-DCconverter.Itiscapableofdelivering1Aoutputcurrentoverawideinputvoltagerangefrom2.5Vto5.5V,theAX3515Aisideallysuitedforportableelectronicdevicesthatarepoweredfrom1

AX3515AJ10A

Dual High Efficiency PWM Step-Down DC-DC Converter

GENERALDESCRIPTION TheAX3515Aisadualhigh-efficiencyPulse-Width-Modulated(PWM)step-downDC-DCconverter.Itiscapableofdelivering1Aoutputcurrentoverawideinputvoltagerangefrom2.5Vto5.5V,theAX3515Aisideallysuitedforportableelectronicdevicesthatarepoweredfrom1

AX3515J12A

Dual High-Efficiency PWM Step-Down DC-DC Converter

GENERALDESCRIPTION TheAX3515isadualhigh-efficiencyPulse-Width-Modulated(PWM)step-downDC-DCconverter.Itiscapableofdelivering1Aoutputcurrentoverawideinputvoltagerangefrom2.5Vto5.5V,theAX3515isideallysuitedforportableelectronicdevicesthatarepoweredfrom1-c