MAX20076ATCB - 36V, 1.2A Synchronous Buck Converter | Analog Devices
部品番号: MAX20076ATCB ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $1.45 | $1.45 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MAX20076ATCB 概要
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.
ドロップイン代替品: MAX20076ATCB — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: MAX20076ATCB （同一形状・フットプリント） — 相違点: Package, Switching Frequency.
クイック比較ツール — 並列比較する代替部品を選択:
MAX20076ATCB/V+
✅ ドロップイン✓ 在庫あり
$2.05 / 個
データシートを見る →MAX20076ATCB/V+T
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MAX20076ATCB 最大定格＆電気的特性
| Product Type | Synchronous step-down buck converter |
| 入力電圧範囲 | 3.5 V to 36 V |
| 最大出力電流 | 1.2 A |
| Output Accuracy | ±2% from 6 V to 18 V input |
| Minimum On-Time | 20 ns |
| スイッチング周波数 | 2 MHz |
| Integrated Switches | High-side and low-side |
| 出力タイプ | Programmable |
| パッケージ | 12-pin TDFN, 3 mm x 3 mm, exposed pad |
| Package Type | Side-wettable TDFN |
| External Components | Very few |
| 実装タイプ | Surface mount |
| Application | Automotive electronics |
| Production Status | Production |
| Manufacturer Revision | Data Sheet Rev. 12 |
MAX20076ATCB side-wettable tdfn ピン配置ガイド
MAX20076ATCB (side-wettable tdfn パッケージ) のピン配置。 このパワーデバイスは、ゲート、ドレイン、ソース端子を備えています。非極性パッケージの場合、正確なピン1の向きとフットプリントの詳細については、メーカーのデータシートを参照してください。主な用途には、電源設計、モータ駆動、負荷スイッチングがあります。
詳細なピン配置データはありません: MAX20076ATCB.
詳細は データシート をご参照ください。
主な用途
MAX20076ATCB の用途: 6 件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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MAX20076ATCB — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | 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 |
主な差別化要因
- Higher output-current capability than the related MAX20075 device （vs MAX20075)
- Wide 36 V input-class operation （vs MAX20076ATCB/V+)
- Compact exposed-pad package （vs MAX20076ATCB/V+T)
- High-ratio step-down capability （vs MAX20075)
設計ノート
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.
コンプライアンス情報
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.
