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Diodes Incorporated AP68255Q | Demoboard AP68255QSP-EVM
5.5V to 80V Input Automotive Grade, 2.5A Standard Buck Converter
Overview
| Topology | Buck Converter |
| Input voltage | 5.5-80 V |
| Output 1 | 50 V / 2.5 A |
| IC revision | 1.1 |
Description
The AP68255Q/AP68355Q 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 AP68255Q/AP68355Q 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 AP68255Q/AP68355Q 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 AP68255Q/AP68355Q 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 80V2V ±1.5% VREFContinuous Output CurrentAP68255Q: 2.5AAP68355Q: 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 (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 784373680680 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-LHCA Low Profile High Current Inductor | 68 | 4.85 | 215 | 2.6 | – | – | 3.8 | – | – | 2.85 | – | |
| 61304011121 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | 40 | Single | – | Pin Header | Straight | 3 | Bag |
| Order Code | Datasheet | |
|---|---|---|
| 784373680680 | SPEC |
| 61304011121 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Downloads | Status | Product series | L (µH) | ISAT (A) | RDC typ. (mΩ) | IRP,40K (A) | Pins (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples |
|---|
