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Overview
| Topology | Buck Converter |
| Input voltage | 4.5-18 V |
| Switching frequency | 300-700 kHz |
| Output 1 | 8 V / 12 A |
| IC revision | 1.0 |
Description
12A, 18V, 500kHz, ACOT™ Synchronous Step-Down Converter.RT1650 is a fully integrated wireless power receiver, intended for wireless power in mobile devices up to 7.5W. This application note explains basic principles of Wireless Power Transfer, Wireless Power standards and the Qi WPC1.1 low power standard, and describes the features of RT1650. Several system aspects of a WPC1.1 5W application are presented by means of a practical example which uses a Nokia DT601 wireless power transmitter and the Richtek Wireless power receiver RT1650 evaluation board.
Features
4.5V to 18V Input Voltage Range 12A Output Current 12mΩInternal High-Side N-MOSFET and 5.4mΩInternal Low-Side N-MOSFET Advanced Constant On-Time Control Fast Transient Response Support All Ceramic Capacitors Up to 95% Efficiency Adjustable Switching Frequency from 300kHz to 700kHz Adjustable Output Voltage from 0.7V to 8V Adjustable Soft-Start Pre-bias Start-Up Adjustable Current Limit from 6A to 16A Cycle-by-Cycle Over Current Protection Power Good Output Input Under-Voltage Lockout Hiccup Mode Under-Voltage Protection Thermal Shutdown Protection
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | RDC max. (mΩ) | LR (µH) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 7443340100 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCC SMT High Current Cube Inductor | 1 | 18.8 | 22.9 | 25.1 | – | 147 | Ferrite | 3.9 | 0.97 | ||
 | 744325120 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCI SMT Flat Wire High Current Inductor | 1.2 | 32.6 | 12 | 25 | 1.8 | 75 | Superflux | 1.98 | 1 |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 7443340100 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | |
| 744325120 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | RDC max. (mΩ) | LR (µH) | Samples |
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