XL4016 - 12A 180kHz 40V Buck Converter | XLSEMI
料号： XL4016 ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
XL4016 概述
A buck converter is a switching voltage-regulator category that converts a higher input voltage into a lower output voltage by repeatedly switching an inductor, diode, capacitor, and control loop. The XL4016 belongs to the DC-DC converter and power-management IC hierarchy and is suitable for equipment requiring a regulated intermediate rail from a higher-voltage supply. Its fixed 180 kHz PWM operation provides a defined switching point for component selection and electromagnetic-layout planning.
Key features include a 180 kHz fixed-frequency PWM control scheme, internal frequency compensation, low external-component count, and support for a nominal 12 A load according to the manufacturer datasheet description. The converter is designed for step-down operation and is intended to provide good line and load regulation. Because the verified source set contains conflicting 8 A and 12 A descriptions, the target current rating must be treated as source-dependent and checked against the exact manufacturer PDF before production release.
The XL4016's architecture is appropriate for high-current DC distribution where the input is above the desired output voltage. Designers should select the inductor, catch diode or synchronous switching arrangement, input capacitor, output capacitor, and feedback divider according to the manufacturer recommendations. The fixed-frequency architecture simplifies control-loop compensation, while PCB inductance and switching-node layout remain critical at high current.
Typical applications include 12 V to 5 V or 12 V to 3.3 V conversion, laboratory and workshop power supplies, LED drivers, battery-charging systems, 24 V industrial rails, and embedded DC-DC modules. The converter's high-current capability can reduce the number of parallel stages in a power tree, subject to package heating and available copper area.
A primary design consideration is thermal management. Estimated power loss must be checked at the actual input voltage, output voltage, switching frequency, output current, efficiency curve, diode forward drop, inductor resistance, and ambient temperature. Do not rely only on the nominal 12 A headline; validate current capability with the manufacturer electrical characteristics and PCB thermal constraints.
This product page synthesizes the verified manufacturer description, datasheet links, application guidance, and strict data-quality notes. It distinguishes verified facts from unresolved current-rating and packaging information rather than inventing missing specifications. Use the official XL4016 datasheet as the controlling reference during schematic capture, PCB design, qualification, and production purchasing.
直接替换替代料： XL4016 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： XL4016 （相同外形与封装尺寸） ——差异在于 Switching Frequency, RoHS Status, Input Voltage Range, Output Voltage Range, Package.
快速对比工具——选择替代料号进行并排对比：
XL4015E1
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$0.2 / 个
查看数据手册 →LM2596SX-ADJ/NOPB
✅ 直接替换✓ 有现货
$1.4 / 个
查看数据手册 →LM5117MHX/NOPB
✅ 直接替换✓ 有现货
$2.2 / 个
查看数据手册 →MP1584
✅ 直接替换📋 参考替代料（不在目录中）
XL6019E1
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
XL4016 最大额定值与电气特性
| Product Type | Fixed-frequency PWM buck DC-DC converter |
| 开关频率 | 180 kHz |
| Input Voltage Class | 40 V |
| Load Current | 8 A to 12 A; source-dependent |
| Control Topology | PWM |
| Frequency Compensation | Internal |
| Oscillator | Fixed-frequency oscillator |
| Conversion Type | Step-down |
| 引脚数量 | 5 pins |
| Shutdown Input Current | Less than 5 mA when TTL shutdown is asserted |
| RoHS 状态 | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | unknown |
| Lead-Free Status | unknown |
XL4016 standard 引脚配置指南
XL4016（standard 封装）的引脚配置。 该功率器件具有栅极、漏极和源极端子。对于无极性封装，请参阅制造商数据手册以了解确切的引脚 1 方向和封装尺寸细节。常见应用包括电源设计、电机驱动和负载开关。
暂无详细引脚数据： XL4016.
请参阅 数据手册 以查看完整引脚配置。
典型应用
XL4016 适用于 6 应用s: 12 V to 5 V Embedded Power Rail, 24 V Industrial Control Supply, Battery-Powered DC-DC Module, LED Lighting Driver, Laboratory Bench Power Supply, Robotics and Embedded DC Distribution.
12 V to 5 V Embedded Power Rail
The XL4016 is a candidate for converting a nominal 12 V source into a regulated 5 V rail for embedded electronics when the verified input class and converter topology match the design. Its fixed 180 kHz PWM operation and internal frequency compensation can simplify the control-loop portion of the design, while the stated high-current capability can support loads beyond ordinary low-power regulator modules. The designer must still select the inductor, diode, capacitors, and feedback network from the manufacturer application information. Because the source set conflicts between 8 A and 12 A, the rail should be validated at the required transient current and temperature rather than relying on the headline rating.
推荐
24 V Industrial Control Supply
The XL4016 can be evaluated for stepping down a nominal 24 V industrial input to a lower control or logic voltage. The verified 40 V input class provides useful design margin for 24 V systems, while the fixed-frequency PWM architecture and internal compensation reduce the number of external control components. The major engineering work is selecting a power inductor, catch diode, input capacitor, output capacitor, and feedback divider that satisfy ripple, transient, and thermal requirements. A 24 V design should include input surge and fault analysis rather than treating the nominal rail as an ideal source. Verify the exact maximum input voltage and current limits in the official XLSEMI datasheet before release.
推荐
Battery-Powered DC-DC Module
The XL4016 is suitable for evaluating in battery-powered equipment that needs a lower regulated rail from a higher battery or charger voltage. The buck topology is useful because it can reduce input voltage while keeping the converter stage compact, and the verified 180 kHz switching frequency provides a defined basis for inductor and capacitor selection. Designers should evaluate the complete discharge range, maximum charging voltage, converter efficiency, and thermal rise rather than sizing from nominal battery voltage alone. A protection strategy is also required for reverse battery, overcurrent, short circuit, and open-load conditions. The supplied source set does not provide all protection thresholds, so those values must be obtained from the manufacturer datasheet.
推荐
LED Lighting Driver
The XL4016 can be considered for a step-down LED driver when its output range and thermal performance are compatible with the LED string. The converter's adjustable output and high-current capability may suit moderate LED power levels, but LED current regulation must be designed explicitly rather than relying only on voltage feedback. The power path should include an inductor, switching diode, input and output capacitors, current-sense or feedback network, and an open-LED protection strategy. Efficiency and junction temperature should be measured at the worst-case LED voltage and current. Because the supplied data does not provide a complete LED reference design or verified output limits, use the official XLSEMI datasheet and validate the driver experimentally.
推荐
Laboratory Bench Power Supply
The XL4016 is a reasonable candidate for an adjustable laboratory step-down stage because the verified description identifies an adjustable buck converter with fixed-frequency PWM control and internal compensation. A bench supply can use the stage to develop lower voltages from a higher laboratory rail, but the power stage must still provide accurate feedback, current limiting, thermal protection, and safe shutdown behavior. Layout quality is particularly important because high di/dt current can create voltage spikes and EMI that affect measurement instruments. The designer should characterize output ripple, load regulation, startup behavior, and temperature at the intended output current. The conflicting 8 A and 12 A source descriptions require explicit rating verification.
推荐
Robotics and Embedded DC Distribution
The XL4016 can serve as a high-current step-down stage in robotics, test equipment, or embedded DC distribution where several loads need a lower regulated rail. Its fixed 180 kHz switching frequency and integrated compensation may reduce external control complexity, while the high-current architecture can support demanding motor-control, sensor, and processor rails when the heat is managed. The switching loop should be kept compact, and the output rail should include local bulk and high-frequency decoupling. Input filtering may be necessary to prevent switching ripple from disturbing sensitive analog or communication circuits. Validate load transients, EMI, and thermal performance in the final enclosure because the available current rating is source-dependent.
推荐
推荐产品汇总
工程参考数据： XL4016 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | XL4015 | LM2596 | LM5117 | MP1584 | XL6019E1 |
|---|---|---|---|---|---|---|
| Brand | XLSEMI | XLSEMI | Texas Instruments | Texas Instruments | Monolithic Power Systems | XLSEMI |
关键差异点
- Fixed 180 kHz PWM operation （对比 LM2596)
- Internal frequency compensation （对比 XL4015)
- TTL shutdown behavior （对比 XL6019E1)
设计说明
Do not select the XL4016 current rating from the headline description alone because the supplied sources conflict between 8 A and 12 A. Determine the actual VIN, VOUT, output-current waveform, ambient temperature, switching frequency, diode drop, inductor resistance, and allowed junction temperature from the manufacturer datasheet. Estimated: power loss equals input power minus output power, where input power is approximately VOUT times IOUT divided by efficiency. Use the resulting loss to check package and PCB thermal capability.
Place the input capacitor, switching element, inductor, and output capacitor so that the high-current switching loop has the smallest possible area. Keep the feedback and compensation traces away from the switch node and power-diode anode. Use broad copper for high-current paths and provide multiple vias where the current changes direction. This reduces parasitic inductance, voltage spikes, radiated emissions, and instability during load transients.
Do not substitute a generic LM2596 pinout or module layout for the XL4016 without comparing the manufacturer pin tables. The verified XL4016 source confirms a five-pin package and a TTL shutdown feature above 3.3 V, but exact pin names and electrical thresholds are not available in the supplied snippets. Confirm VIN, SW, FB, EN or shutdown, and GND assignments, then validate polarity and exposed-pad requirements against the official PDF.
Use the PCB as part of the thermal design rather than relying only on the package marking. Verify copper area, thermal vias, ambient temperature, airflow, and the maximum duty cycle at the intended load. Estimated: junction temperature equals ambient temperature plus the calculated power loss multiplied by the effective thermal resistance. Because the effective thermal resistance depends on board construction and package details, obtain the manufacturer value and validate it with thermal measurement rather than substituting an invented value.
合规信息
The supplied datasheet and search snippets do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Obtain current manufacturer or distributor compliance documentation before procurement.
