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NCP459 Dataheets PDF



Part Number NCP459
Manufacturers ON Semiconductor
Logo ON Semiconductor
Description 4A Single Load Switch
Datasheet NCP459 DatasheetNCP459 Datasheet (PDF)

NCP458R, NCP459 4 A Single Load Switch for Low Voltage Rail The NCP458R and NCP459 are power load switch with very low Ron NMOSFET controlled by external logic pin, allowing optimization of battery life, and portable device autonomy. Indeed, thanks to a best in class current consumption optimization with NMOS structure, leakage currents are drastically decreased. Offering optimized leakages isolation on the ICs connected on the battery. Output discharge path is proposed, in the NCP459 version ,.

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NCP458R, NCP459 4 A Single Load Switch for Low Voltage Rail The NCP458R and NCP459 are power load switch with very low Ron NMOSFET controlled by external logic pin, allowing optimization of battery life, and portable device autonomy. Indeed, thanks to a best in class current consumption optimization with NMOS structure, leakage currents are drastically decreased. Offering optimized leakages isolation on the ICs connected on the battery. Output discharge path is proposed, in the NCP459 version , to eliminate residual voltages on the external components connected on output pin. Reverse voltage protection, from OUT to IN is offered in the NCP458R version. Proposed in wide input voltage range from 0.75 V to 5.5 V, and a very small CSP8 1 x 2 mm2. Features • 0.75 V − 5.5 V Operating Range • 11 mW N−MOSFET • Vbias Rail Input • DC Current up to 4 A • Output Auto−Discharge Option • Reverse Blocking Option • Active High EN Pin • CSP8, 1 x 2 mm2, Pitch 0.5 mm Typical Applications • Notebooks • Tablets • Wireless • Mobile Phones • Digital Cameras Vcc V+ SMPS DCDC Converter or LDO LS http://onsemi.com MARKING DIAGRAM WLCSP8 CASE 567HD XXXX AYWWG A = Assembly Location Y = Year WW = Work Week G = Pb−Free Package PINOUT 12 A EN GATE B IN OUT C IN OUT D VBIAS GND (Top View) ORDERING INFORMATION See detailed ordering and shipping information on page 12 of this data sheet. NCP458−459 B1 C1 A2 D1 IN OUT IN OUT Gate EN Vbias GND B2 C2 A1 D2 Platform IC’n ENx EN 0 Figure 1. Typical Application Schematic © Semiconductor Components Industries, LLC, 2014 June, 2014 − Rev. 1 1 Publication Order Number: NCP458R/D NCP458R, NCP459 DCDC Converter or LDO LS NCP458−459 B1 C1 IN OUT B2 C2 A2 D1 IN OUT Gate EN Vbias GND A1 D2 Platform IC’n ENx EN 0 Figure 2. Application Schematic with Vbias Connected to IN and No Gate Delay PIN FUNCTION DESCRIPTION Pin Name Pin Number EN A1 IN B1, C1 VBIAS D1 GATE A2 OUT B2, C2 GND D2 Type INPUT POWER POWER INPUT POWER POWER Description Enable input, logic high turns on power switch . Load−switch input pin. External supply voltage input. OUT pin slew rate control (trise). Load−switch output pin. Ground connection. http://onsemi.com 2 IN: B1, C1 GATE : A2 VBIAS : D1 IN: B1, C1 GATE : A2 VBIAS : D 1 NCP458R, NCP459 BLOCK DIAGRAMS Control logic & Charge Pump Gate driver Figure 3. NCP458R Block Diagram Control logic & Charge Pump Gate driver Figure 4. NCP459 Block Diagram http://onsemi.com 3 OUT : B2, C 2 EN: A1 GND : D2 OUT : B2 , C 2 GND : D 2 EN : A1 NCP458R, NCP459 MAXIMUM RATINGS Rating Symbol Value Unit IN, OUT, EN, VBIAS, GATE Pins: (Note 1) From IN to OUT Pins: Input/Output (Note 1) NCP459 From IN to OUT Pins: Input/Output (Note 1) NCP458R Human Body Model (HBM) ESD Rating are (Note 2) VEN, VIN , VOUT, VBIAS, VGATE VIN , VOUT VIN , VOUT ESD HBM −0.3 to +6.5 0 to + 6.5 ±6.5 2000 V V V V Machine Model (MM) ESD Rating are (Note 2) ESD MM 200 V Latch−up protection.


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