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Diodes Incorporated AP64351SP | Demoboard AP64351SP-EVM
40V, 3.5A, Synchronous DC/DC Buck Converter with Programmable Soft-Start
Details
| Topologie | Abwärtswandler |
| Eingangsspannung | 3.8-40 V |
| Ausgang 1 | 12 V / 3.5 A |
| IC-Revision | 1-0 |
Beschreibung
The AP64351 is 3.5A synchronous buck converters with wide input voltage, ranging from 3.8V to 40V, which integrates an 80mΩ high-side MOSFET and a 50mΩ low-side MOSFET. The AP64351, adopting the peak current mode control, supports the Pulse Skipping Modulation (PSM) with typical 25uA low quiescent current which assists the converter on achieving high efficiency at light load or standby condition.The AP64351 features programmable soft-start time with 570kHz switching frequency. The converter allows power conversion from high input voltage to low output voltage with a minimum 100ns on-time of high-side MOSFET. It also supports Low Drop-Out LDO operation at low voltage difference from input to output condition.The AP64351 is an Electromagnetic Interference (EMI) friendly buck converter with implementing optimized design for EMI reduction. The AP64351 features Frequency Spread Spectrum FSS with ±6% jittering span of the 570kHz switching frequency and modulation rate 1/512 of switching frequency to reduce the conducted EMI.The AP64351 offers cycle-by-cycle current limit and hiccup over current protection, thermal shutdown protection, output over-voltage protection and input voltage under-voltage protection. The device is available in an 8-pin thermally enhanced SOP-8 package.
Eigenschaften
- Wide Input Range: 3.8V-40V
- Up to 3.5A Continuous Output Current
- 0.8V ±1% Feedback Reference Voltage
- Integrated 80mΩ High-Side and 50mΩ Low-Side Power MOSFETs
- Pulse Skipping Mode (PSM) with 25uA Quiescent Current in Sleep Mode
- 100ns Minimum On-time
- Programmable Soft-start Time
- Frequency Spread Spectrum (FSS) Modulation for EMI Reduction
- Precision Enable Threshold for Programmable Input Voltage Under-voltage Lock Out Protection (UVLO) Threshold and Hysteresis
- Low Dropout Mode Operation
- Derivable Inverting Voltage Regulator
- Over-voltage and Over-Temperature Protection
- Available in an ESOP-8 Package
- Totally Lead-Free & Fully RoHS Compliant
- Halogen and Antimony Free. “Green” Device
Typische Anwendungen
- USB Type-C Power Delivery, USB Charging / Industrial and Medical Distributed Power Supplies
- Automotive Systems
- Optical Communication and Networking System
- LCD Display
- Battery Pack Powered System - Cordless Power Tools, Cordless Home Appliance, Drone, Aero Modelling, GPS Tracker etc. / Cigarette Lighter Adapters, Chargers
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | C | Tol. C | VR(V (DC)) | Bauform | Betriebstemperatur | DF(%) | RISO | Keramiktyp | L(mm) | B(mm) | H(mm) | Fl(mm) | Verpackung | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC(mΩ) | fres(MHz) | Material | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 25 V(DC), 3.3 nF, ±10% | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-CSGP MLCCs 25 V(DC) | Kapazität3.3 nF | Kapazität±10% | Nennspannung25 V (DC) | Bauform0603 | Betriebstemperatur -55 °C up to +125 °C | Verlustfaktor3.5 % | Isolationswiderstand10 GΩ | KeramiktypX7R Klasse II | Länge1.6 mm | Breite0.8 mm | Höhe0.8 mm | Pad Dimension0.4 mm | Verpackung7" Tape & Reel | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), 10 nF, ±10% | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-CSGP MLCCs 25 V(DC) | Kapazität10 nF | Kapazität±10% | Nennspannung25 V (DC) | Bauform0603 | Betriebstemperatur -55 °C up to +125 °C | Verlustfaktor3.5 % | Isolationswiderstand10 GΩ | KeramiktypX7R Klasse II | Länge1.6 mm | Breite0.8 mm | Höhe0.8 mm | Pad Dimension0.4 mm | Verpackung7" Tape & Reel | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), 100 nF, ±10% | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-CSGP MLCCs 25 V(DC) | Kapazität100 nF | Kapazität±10% | Nennspannung25 V (DC) | Bauform0603 | Betriebstemperatur -55 °C up to +125 °C | Verlustfaktor3.5 % | Isolationswiderstand5 GΩ | KeramiktypX7R Klasse II | Länge1.6 mm | Breite0.8 mm | Höhe0.8 mm | Pad Dimension0.4 mm | Verpackung7" Tape & Reel | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), 100 nF, ±10% | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-CSGP MLCCs 50 V(DC) | Kapazität100 nF | Kapazität±10% | Nennspannung50 V (DC) | Bauform0603 | Betriebstemperatur -55 °C up to +125 °C | Verlustfaktor3 % | Isolationswiderstand5 GΩ | KeramiktypX7R Klasse II | Länge1.6 mm | Breite0.8 mm | Höhe0.8 mm | Pad Dimension0.4 mm | Verpackung7" Tape & Reel | – | – | – | – | – | – | – | |||||
 | WE-HCI SMT-Hochstrominduktivität, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-HCI SMT-Hochstrominduktivität | – | – | – | Bauform1050 | Betriebstemperatur -40 °C up to +150 °C | – | – | – | Länge10.5 mm | Breite10.2 mm | Höhe4.7 mm | – | – | Induktivität5.5 µH | Performance Nennstrom12 A | Sättigungsstrom 14.5 A | Sättigungsstrom @ 30%12 A | Gleichstromwiderstand10.3 mΩ | Eigenresonanzfrequenz30 MHz | MaterialSuperflux |