MAX20076ATCB - 36V, 1.2A Synchronous Buck Converter | Analog Devices
料号： MAX20076ATCB ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.45 | $1.45 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MAX20076ATCB 概述
A synchronous buck converter is a DC-DC voltage-regulator class that reduces a higher input voltage to a lower, regulated output. Unlike a linear regulator, its internal high-side and low-side MOSFET switches transfer energy through an inductor during alternating charge and discharge cycles. This switching action improves conversion efficiency, especially when the output voltage is substantially below the input voltage. The MAX20076 belongs to the synchronous buck-converter family within power-management ICs.
Key features include integrated high-side and low-side switches, programmable output voltage, 1.2 A output-current capability, operation from 3.5 V to 36 V, and a 2 MHz switching option identified in distributor data. The 3 mm x 3 mm TDFN package supports space-constrained designs, while the exposed pad provides a thermal and electrical connection to the PCB. The converter also uses very few external components according to the manufacturer datasheet.
The 20 ns minimum on-time is technically significant because it permits a high ratio between input and output voltages while retaining regulation. This helps designers use a smaller inductor than would be practical with a conventional buck controller that has a longer minimum pulse width. The integrated synchronous switches reduce external power-stage components and can improve conversion efficiency compared with a diode-based asynchronous implementation.
Typical applications include automotive electronics, industrial systems, portable equipment, and distributed power rails that require compact step-down conversion from a wide input range. For an automotive design, engineers should still verify the exact temperature grade, automotive qualification status, and electrical limits in the ordering information and manufacturer datasheet before production release.
The principal design consideration is component selection and PCB layout. Inductor saturation current, switching-node layout, input-capacitor placement, and exposed-pad thermal performance directly affect reliability and electromagnetic compatibility. Designers should follow the manufacturer’s recommended application circuit and layout guidance rather than estimating these values from generic buck-converter examples.
This product page consolidates verified manufacturer specifications, distributor availability references, package information, and practical design guidance. It distinguishes published facts from parameters that require confirmation from the full datasheet, helping engineers evaluate this wide-input, compact converter efficiently.
直接替换替代料： MAX20076ATCB ——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： MAX20076ATCB （相同外形与封装尺寸） ——差异在于 Package, Switching Frequency.
快速对比工具——选择替代料号进行并排对比：
MAX20076ATCB/V+
✅ 直接替换✓ 有现货
$2.05 / 个
查看数据手册 →MAX20076ATCB/V+T
✅ 直接替换📋 参考替代料（不在目录中）
MAX20076ATCB 最大额定值与电气特性
| Product Type | Synchronous step-down buck converter |
| 输入电压范围 | 3.5 V to 36 V |
| 最大输出电流 | 1.2 A |
| Output Accuracy | ±2% from 6 V to 18 V input |
| Minimum On-Time | 20 ns |
| 开关频率 | 2 MHz |
| Integrated Switches | High-side and low-side |
| 输出类型 | Programmable |
| 封装 | 12-pin TDFN, 3 mm x 3 mm, exposed pad |
| Package Type | Side-wettable TDFN |
| External Components | Very few |
| 安装类型 | Surface mount |
| Application | Automotive electronics |
| Production Status | Production |
| Manufacturer Revision | Data Sheet Rev. 12 |
MAX20076ATCB side-wettable tdfn 引脚配置指南
MAX20076ATCB（side-wettable tdfn 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： MAX20076ATCB.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MAX20076ATCB 适用于 6 应用s: Automotive Electrical-Control Rails, Industrial Sensor and Controller Power, Portable and Battery-Derived Systems, Distributed Power for Communication Equipment, High-Density Robotics Power Modules, Test and Measurement Front-Ends.
Automotive Electrical-Control Rails
The MAX20076ATCB fits compact automotive control units that need to reduce a wide input rail to a lower regulated supply. Its 3.5 V to 36 V input range accommodates broad vehicle battery-conditioning environments, while the 1.2 A capability supports moderate sensor, interface, and actuator-control loads. The synchronous switch arrangement avoids a discrete rectifier diode and can improve conversion efficiency. Designers should use the exposed-pad land pattern, place input and output capacitors close to the pins, and verify transient, temperature, and automotive qualification requirements against the final vehicle specification.
推荐
Industrial Sensor and Controller Power
The MAX20076ATCB is appropriate for industrial sensor nodes and embedded controllers that receive a higher-voltage distribution rail and require a compact local regulator. The 20 ns minimum on-time supports high step-down ratios, helping designers reduce inductor size when converting a wide input to a lower rail. Its 1.2 A rating provides headroom for processor, sensor, and interface loads, but actual current must remain within thermal and inductor limits. Ground-plane continuity and exposed-pad thermal management are especially important in compact industrial enclosures with limited airflow.
推荐
Portable and Battery-Derived Systems
The MAX20076ATCB can serve as a compact step-down stage in portable equipment, battery-powered modules, and edge devices where a higher raw input must be reduced efficiently. Synchronous conversion avoids the inherent conduction loss associated with a series rectifier, and the 3 mm x 3 mm package helps conserve board area. The 36 V maximum input is useful for protected industrial or automotive-derived inputs, although it is not a substitute for a battery-specific charger. Designers must account for startup behavior, load transients, inductor current, and the regulator’s thermal rise in enclosed products.
推荐
Distributed Power for Communication Equipment
The MAX20076ATCB is useful in distributed communication equipment where a 12 V or higher input rail is reduced locally for processors, transceivers, and logic. The 2 MHz switching-class device identified in distributor data supports a compact power solution, while the 20 ns minimum on-time allows substantial step-down ratios. A synchronous regulator is advantageous when efficiency matters more than the simplicity of a linear output. EMI control still depends on the selected inductor, switching-node geometry, input filtering, and the exact layout recommended by Analog Devices.
推荐
High-Density Robotics Power Modules
The MAX20076ATCB can provide a compact local supply for robot controllers, motor-interface electronics, and sensor distribution modules. Its small TDFN footprint leaves more board area for signal routing, while the wide input range supports protected industrial or vehicle-derived power buses. The 1.2 A rating is appropriate for moderate digital loads, but motor transients should be isolated or regulated upstream rather than assumed to be absorbed by the buck converter. Pay attention to exposed-pad soldering, thermal vias, and the maximum voltage transient seen by the IC.
推荐
Test and Measurement Front-Ends
The MAX20076ATCB can generate a compact regulated rail for measurement and instrumentation boards that combine analog front ends with digital control. The wide 3.5 V to 36 V input range simplifies designs that receive protected laboratory or industrial supplies. Its synchronous operation reduces the number of external power-stage components compared with an asynchronous diode implementation. For precision measurement, assess noise, ripple, grounding, and transient performance experimentally rather than relying only on nominal converter specifications. Place the feedback and compensation components exactly as shown in the manufacturer reference design.
推荐
推荐产品汇总
工程参考数据： MAX20076ATCB ——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 | MAX20076ATCB/V+ | MAX20076ATCB/V+T |
|---|---|---|---|
| Package | 12-pin TDFN, 3 mm x 3 mm, exposed pad | 12-pin TDFN, 3 mm x 3 mm | 12-pin TDFN, 3 mm x 3 mm |
| Brand | Analog Devices | Analog Devices | Analog Devices |
| Input Voltage Range | 3.5 V to 36 V | 3.5 V to 36 V | 3.5 V to 36 V |
| Maximum Output Current | 1.2 A | 1.2 A | 1.2 A |
| Converter Type | Synchronous buck converter | Synchronous buck converter | Synchronous buck converter |
| Minimum On-Time | 20 ns | 20 ns | 20 ns |
| Output Accuracy | ±2% from 6 V to 18 V input | ±2% from 6 V to 18 V input | ±2% from 6 V to 18 V input |
| Switching Frequency | 2 MHz | 2 MHz | 2 MHz |
| Integrated Switches | High-side and low-side | High-side and low-side | High-side and low-side |
关键差异点
- Higher output-current capability than the related MAX20075 device （对比 MAX20075)
- Wide 36 V input-class operation （对比 MAX20076ATCB/V+)
- Compact exposed-pad package （对比 MAX20076ATCB/V+T)
- High-ratio step-down capability （对比 MAX20075)
设计说明
Use the Analog Devices recommended 12-pin TDFN land pattern and keep the switching node as small as practical. Place the input capacitors, output capacitors, inductor, and feedback components according to the datasheet reference layout. The exposed pad should have a continuous thermal connection to the ground plane, with vias selected to preserve electrical performance and heat transfer.
Do not assume that the 1.2 A rating permits continuous 1.2 A operation without thermal analysis. Estimated dissipation should be calculated from VIN, VOUT, output current, conversion efficiency, and ambient temperature using the actual design values. Check junction temperature against the datasheet limit and provide copper area or thermal vias beneath the exposed pad.
The 20 ns minimum on-time enables high step-down ratios, but the inductor must still satisfy the required ripple current, saturation current, and switching-frequency limits. Do not select the inductor from its inductance value alone. Confirm the selected part’s current rating against the calculated peak current, including startup, load-transient, and tolerance effects.
The switching node is the principal EMI source. Keep VIN and SW copper areas compact, use a grounded return path, and place input bypass capacitors close to the IC pins. If conducted or radiated emissions exceed the system limit, evaluate switching-node snubber, input filtering, and shield or grounding changes rather than relying only on output filtering.
Do not treat the MAX20075 as a drop-in replacement for the MAX20076ATCB: the MAX20075 is documented up to 0.6 A, while the MAX20076ATCB is designed up to 1.2 A. Also verify the exact ordering suffix and package before placement, because the supplied distributor data identifies both /V+ and /V+T ordering forms.
合规信息
The supplied verified data identifies automotive applications but does not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. Compliance must be confirmed using the current manufacturer product documentation and ordering information.
