Richtek RT8209AGQW QFN16 (FH=DD)Ship from US, US $2.99 – Picture 0

Richtek RT8209AGQW QFN16 (FH=DD)Ship from US, US $2.99 – Picture 1

Richtek RT8209AGQW QFN16 (FH=DD)Ship from US, US $2.99 – Picture 2

Richtek Rt8209agqw Qfn16 (fh=dd)ship From Us

US $2.99

Tucson, Arizona, United States
Jan 29th

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Our mission is to give you the e–components you need without having to deal with long delivery times from China. All of our components are already in the US. You can order 1pcs of any part, there is no minimum for ordering. just place an order and you will have your parts in no time! All components come in brand new condition with a 2 months limited warranty, you have plenty of time replace them if needed. The RT8209A/B/C PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM supplies in notebook computers. The constant-on-time PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns "instant-on" response to load transients while maintaining a relatively constant switching frequency. The RT8209A/B/C achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current mode PWMs. Efficiency is further enhanced by its ability to drive very large synchronous rectifier MOSFETs. The buck conversion allows this device to directly step down high voltage batteries for the highest possible efficiency. The RT8209A/B/C is intended for CPU core, chipset, DRAM, or other low voltage supplies as low as 0.75V. The WQFN-16L 3x3 package, the WQFN-14L 3.5x3.5 package and the RT8209C is available a TSSOP-14 package. Features Ultra-High Efficiency Resistor Programmable Current Limit by Low Side RDS(ON) Sense (Lossless Limit) Quick Load Step Response within 100ns 1% VFB Accuracy over Line and Load to 26V Battery Input Range Resistor Programmable Frequency Integrated Bootstrap Switch Integrated Negative Current Limiter Over/Under Voltage Protection 4 Steps Current Limit During Soft-Start Power Good Indicator RoHS Compliant and Halogen Free Applications Notebook Computers System Power Supplies I/O Supplies RT8209 Package Type WQFN-16L 3x3 (W-Type) WQFN-14L 3.5x3.5 (W-Type) : TSSOP-14 Lead Plating System G : Green (Halogen Free and Pb Free) Z : ECO (Ecological Element with Halogen Free and Pb free) : TSSOP-14 RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. RT8209CGC : Product Code BOOT UGATE PHASE CS VDDP LGATE PGND VDDP R2 100k PGOOD R6 18k CCM/DEM C2 1µF VDDP UGATE PHASE LGATE Pin No. RT8209A RT8209B/C VOUT VDD FB PGOOD Output Voltage Pin. Connect to the output of PWM converter. VOUT is an input of the PWM controller. Analog supply voltage input for the internal analog integrated circuit. Bypass to GND with 1 F ceramic capacitor. Feedback Input Pin. Connect to a resistor voltage divider from VOUT to GND to adjust VOUT from to 3.3V Power good signal open-drain output of PWM converter. This pin will be pulled high when the output voltage is within the target range. No internal connection. The exposed pad must be soldered to a large PCB and connected to GND for maximum power dissipation. Pin Name Pin Function Pin No. RT8209A RT8209B/C GND PGND LGATE VDDP CS PHASE UGATE BOOT EN/DEM TON Analog Ground. Power Ground. Low side N-MOSFET gate driver output for PWM. This pin swings between GND and VDDP. VDDP is the gate driver supply for external MOSFETs. Bypass to GND with a 1F ceramic capacitor. Over Current Trip Point Set Input. Connect resistor from this pin to signal ground to set threshold for both over current and negative over current limit. The UGATE High Side Gate Driver Return. Also serves as anode of over current comparator. High side N-MOSFET floating gate driver output for the PWM converter. This pin swings between PHASE and BOOT. Bootstrap Capacitor Connection for PWM Converter. Connect to an external ceramic capacitor to PHASE. Enable/Diode Emulation Mode Control Input. Connect to VDD for diode-emulation mode, connect to GND for shutdown and floating the pin for CCM mode. On Time/Frequency Adjustment Pin. Connect to PHASE through a resistor. TON is an input for the PWM controller. Pin Name Pin Function BOOT S Q DRV UGATE PHASE VDDP DRV LGATE PGND PGOOD Diode Emulation

Condition:	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...	Brand	Richtek
MPN	RT8209AGQW
Model	RT8209AGQW