| Topology | Buck Converter |
| Input voltage | 4.5-18 V |
| Output 1 | 1.05 V / 5 A |
| IC revision | 2.0 |
The AP65550 is an adaptive on-time modesynchronous buck converter providing highefficiency, excellent transient response andhigh DC output accuracy for low-voltageregulation in digital TV and monitor.The constant-on-time control schemehandles wide input/output voltage ratios andprovides low external component count. Theinternal proprietary circuit enables thedevice to adopt both low equivalent seriesresistance (ESR) output capacitors, such asSP-CAP or POSCAP and ultra-low ESRceramic capacitors.The adaptive on-time control supportsseamless transition between continuousconduction mode (CCM) at higher loadconditions and discontinuous conductionmode (DCM) at lighter load conditions.DCM allows AP65550 maintain highefficiency at light load conditions. TheAP65550 also features programmable softstart,UVLO, OTP and OCP to protect thecircuit.This IC is available in SO-8EP package.
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC(mΩ) | fres(MHz) | Material | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 50 V(DC), 100 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance100 nF | Capacitance±10% | Rated Voltage50 V (DC) | Size0805 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor2.5 % | Insulation Resistance5 GΩ | Ceramic TypeX7R Class II | Length2 mm | Width1.25 mm | Height0.8 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), 1 µF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | Capacitance1 µF | Capacitance±10% | Rated Voltage16 V (DC) | Size0805 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor5 % | Insulation Resistance0.5 GΩ | Ceramic TypeX7R Class II | Length2 mm | Width1.25 mm | Height1.25 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), 10 µF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | Capacitance10 µF | Capacitance±10% | Rated Voltage25 V (DC) | Size1210 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor5 % | Insulation Resistance0.01 GΩ | Ceramic TypeX7R Class II | Length3.2 mm | Width2.5 mm | Height2 mm | Pad Dimension0.3 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | |||||
![]() | WE-HCI SMT Flat Wire High Current Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | – | – | – | Size7040 | Operating Temperature -40 °C up to +150 °C | – | – | – | Length7 mm | Width6.9 mm | Height3.8 mm | – | – | Inductance1.5 µH | Performance Rated Current13.8 A | Saturation Current @ 10%4.5 A | Saturation Current @ 30%14 A | DC Resistance6.6 mΩ | Self Resonant Frequency72 MHz | MaterialSuperflux |