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ZXRD1050PQ16 Datasheet(PDF) 1 Page - Zetex Semiconductors |
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ZXRD1050PQ16 Datasheet(HTML) 1 Page - Zetex Semiconductors |
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1 / 28 page  Very high efficiency SimpleSync TM converter. FEATURES • > 95% Efficiency • Fixed frequency (adjustable) PWM • Voltage mode to ensure excellent stability & transient response • Low quiescent current in shutdown mode,15µA • Low battery flag • Output down to 2.0V • Overload protection • Demonstration boards available • Synchronous or non-synchronous operation • Cost effective solution • N or P channel MOSFETs • QSOP16 package • Fixed 3.3, 5V and adjustable outputs • Programmable soft start APPLICATIONS • High efficiency 5 to 3.3V converters up to 4A • Sub-notebook computers • Embedded processor power supply • Distributed power supply • Portable instruments • Local on card conversion • GPS systems DESCRIPTION The ZXRD1000 series provides complete control and protection functions for a high efficiency (> 95%) DC-DC converter solution. The choice of external MOSFETs allow the designer to size devices according to application. The ZXRD1000 series uses advanced DC-DC converter techniques to provide synchronous drive capability, using innovative circuits that allow easy and cost effective implementation of shoot through protection. The ZXRD1000 series can be used with an all N channel topology or a combination N & P channel topology. Additional functionality includes shutdown control, a user adjustable low battery flag and simple adjustment of the fixed PWM switching frequency. The controller is available with fixed outputs of 5V or 3.3V and an adjustable (2.0 to 12V) output. 4.5-10V N1 ZXM64N02X L1 15µH C6 1µF D1 ZHCS1000 C3 330pF R3 3k R1 100k Fx C1 1µF 0.01R C7 22µF D3 BAT54 C10 1µF R4 10k C8 2.2µF 68µF C4 1µF C5 1µF x2 680µF R6 10k R5 6k Cx2 0.01µF CX1 0.022µF RX 2k7 N2 ZXM64N02X R2 680R D2 BAT54 C11 1µF C2 1µF 3.3V 4A C9 1µF 120µF VCC COUT VOUT RSENSE 13 Bootstrap VIN GND GND PWR LBSET Decoup RSENSE+ RSENSE - VFB CT LBF SHDN VINT Delay Comp VDRIVE 2 1 7 8 16 15 3 4 6 5 10 14 11 9 C IN Low input flag Shut Down IC1 HIGH EFFICIENCY SIMPLESYNC PWM DC-DC CONTROLLERS 1 ZXRD1000 SERIES ISSUE 4 - OCTOBER 2000 |
Similar Part No. - ZXRD1050PQ16 |
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Similar Description - ZXRD1050PQ16 |
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