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Diodes Incorporated AP6A355Q | Demoboard AP6A355QSP-EVM
5.5V to 100V Input Automotive Grade, 3.5A Standard Buck Converter
Overview
| Topology | Buck Converter |
| Input voltage | 5.5-100 V |
| Output 1 | 50 V / 3.5 A |
| IC revision | 1.1 |
Description
The AP6A255Q/AP6A355Q is an internally compensated, standard DC-DC buck converter with a default frequency of 300kHz. The device fully integrates a 500mΩ high-side power MOSFET power MOSFET to provide highly efficient step-down DC-DC conversion.The AP6A255Q/AP6A355Q device is easily used by minimizing the external component count due to its adoption of Constant On-Time (COT) control to achieve fast transient response, easy loop stabilization, and low output voltage ripple.The AP6A255Q/AP6A355Q design is optimized for Electromagnetic Interference (EMI) reduction. The device has a proprietary gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turn-off times, which reduces high frequency radiated EMI noise caused by MOSFET switching.The AP6A255Q/AP6A355Q is available in the standard Green SO-8EP package.
Features
Qualified for Automotive ApplicationsAEC-Q100 Qualified with the Following ResultsDevice Temperature Grade 1: -40°C to +125°C TADevice HBM ESD Classification Level 1CDevice CDM ESD Classification Level C5Functional Safety-Capable ISO26262 – Documentation Available to Aid Functional Safety System DesignVIN5V to 100V2V ±1.5% VREFContinuous Output CurrentAP6A255Q: 2.5AAP6A355Q: 3.5AVOUT Adjustable from 1.2V to 50VOvercurrent Protection (OCP)Thermal Protection
Typical applications
More information
Products
Order Code | Datasheet | Downloads | Status | Product series | L(µH) | ISAT(A) | RDC typ.(mΩ) | IRP,40K(A) | Pins | Type | Mount | L(mm) | H(mm) | IR(A) | Working Voltage(V (AC)) | Operating Temperature | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-LHCA Low Profile High Current Inductor, 33 µH, 6.5 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHCA Low Profile High Current Inductor | Inductance33 µH | Saturation Current6.5 A | DC Resistance87 mΩ | Performance Rated Current4.1 A | – | – | – | Length10.85 mm | Height3.8 mm | Rated Current4.5 A | – | Operating Temperature -55 °C up to +155 °C | |||
 | WR-PHD Pin Header - Single, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | – | – | – | Pins40 | TypeStraight | MountTHT | Length101.6 mm | – | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C |