NCP1510FCT1G ,Multi Mode DC-DC Buck Converter with Low Iq ModeELECTRICAL CHARACTERISTICS (V = 3.6 V, Vo = 1.57 V, T = 25°C, Fsyn = 600 kHz 50% Duty Cycle square ..
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NCP1510FCT1G
Multi Mode DC-DC Buck Converter with Low Iq Mode
NCP1510
Advance Information
PWM Buck Converter with a
Very Low Iq During Low
Load Conditions
The NCP1510 is a tri−mode regulator that operates either as a
Synchronized PWM Buck Converter, PWM Buck Converter with
internal oscillator or as a Pulsed Switching Regulator. If a
synchronization signal is present, the NCP1510 operates as a current
mode PWM converter with synchronous rectification. The optional
external frequency input signal allows the user to control the location
of the spurious frequency noise generated by a PWM converter. The
Pulsed Switching Regulator mode is active when the Sync Pin is
Low. The Pulsed Mode is an extremely low quiescent current Buck
Converter. NCP1510 operates in a PWM mode with an internal
oscillator when the Sync Pin is held high. The NCP1510
configuration allows the flexibility of efficient high power operation
and low input current during system sleep modes.
Features Synchronous Rectification for Higher Efficiency in PWM Mode Pulsed Switching Mode Operation for Low Current Consumption at
Low Loads Output Current of 300 mA in PWM and 30 mA in Pulse Mode Integrated MOSFETs and Feedback Circuits Cycle−by−Cycle Current Limit Automatic Switching Between PWM, with External or Internal
Oscillator, and Pulsed Mode Operating Frequency Range of 450 to 1000 kHz Internal 1.0 MHz Oscillator Thermal Limit Protection Built−in Slope Compensation for Current Mode PWM Converter 1.05, 1.35, 1.57, 1.8 Fixed Output Voltages Shutdown Current Consumption of 0.2 �A Pb−Free Package for Green Manufacturing
Applications Cellular Phones and Pagers PDA Digital Cameras Supplies for DSP Cores Portable Applications
