MCP1792T-5002H/CB - 100mA 55V High-Voltage LDO | Microchip
部品番号: MCP1792T-5002H/CB ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MCP1792T-5002H/CB 概要
A low-dropout regulator, or LDO, is a linear voltage regulator that passes input voltage to a load while maintaining a nearly constant output. LDO devices belong to the linear-regulator, voltage-regulator, and power-management-IC hierarchies. Compared with switching regulators, an LDO generally offers quieter output and simpler layout, although power dissipation rises with input-output voltage difference and load current.
The MCP1792 family provides 100 mA output current, fixed 5.0 V operation for this ordering code, and a wide 4.5 V to 55 V input range. Verified distributor data also identifies undervoltage lockout, overcurrent protection, over-temperature protection, and over-voltage protection. Reported performance data includes 400 uVrms output noise, 45 uA quiescent current, and 55 dB PSRR at 100 kHz, making the device appropriate for compact low-noise sensor and interface rails.
The three-lead MCP1792 configuration uses input, ground, and output connections and omits the shutdown pin found in the five-lead MCP1793. This simpler control interface suits always-on systems where shutdown current is not a primary concern. Its wide input range also provides useful transient margin for 12 V and 24 V automotive environments while maintaining a regulated 5 V supply for downstream electronics.
Typical uses include automotive sensors, industrial controllers, battery-powered equipment, 24 V bus interfaces, measurement modules, and low-noise analog rails. The fixed 5 V output also simplifies designs that do not require an adjustable regulator or high current capability.
Design around the 100 mA current limit and verify regulator dissipation across the complete input range. At 48 V input and 100 mA load, the estimated pass-element dissipation is approximately 4.3 W before accounting for the output-to-input voltage difference precisely; this generally requires careful copper-area thermal design in a SOT-23A package.
This page consolidates verified manufacturer specifications, distributor information, application guidance, and drop-in alternative analysis into one engineering-focused reference for the MCP1792T-5002H/CB.
ドロップイン代替品: MCP1792T-5002H/CB — 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。
クイック比較ツール — 並列比較する代替部品を選択:
MCP1792T-5002H/CBVAO
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MCP1799T-5002H/DBVAO
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MCP1701T-5002I/CB
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MCP1702T-1202E/CB
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MCP1702T-3302E/CB
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MCP1792T-5002H/CB 最大定格＆電気的特性
| Product Type | Fixed positive linear low-dropout voltage regulator |
| 出力構成 | Single output |
| Fixed Output Voltage | 5.0 V |
| 最大出力電流 | 100 mA |
| 入力電圧範囲 | 4.5 V to 55 V |
| ドロップアウト電圧 | 1.2 V at 100 mA |
| 出力ノイズ | 400 uVrms |
| 静止電流 | 45 uA |
| Ground Current | 100 uA |
| Power Supply Rejection Ratio | 55 dB at 100 kHz |
| Protection Features | Undervoltage lockout, overcurrent, over-temperature, and over-voltage protection |
| Operating Ambient Temperature | -40 C to +150 C |
| パッケージ | SOT-23A-3 |
| ピン数 | 3 pins |
| 実装タイプ | Surface mount |
| RoHS ステータス | RoHS |
MCP1792T-5002H/CB ピン構成
| ピン 1 | IN — Regulator input pin |
| ピン 2 | GND — Ground reference pin |
| ピン 3 | OUT — Regulated 5.0 V output pin |
主な用途
MCP1792T-5002H/CB の用途: 6 件s: Automotive Sensor Power, Industrial 24V Control Rail, High-Voltage Battery Instrumentation, Low-Noise Analog Interface, 48V Remote Sensor Node, 24V Relay and Logic Supply.
Automotive Sensor Power
The MCP1792T-5002H/CB fits 12 V, 24 V, and selected 48 V vehicle power environments where a sensor interface needs a quiet 5.0 V rail at up to 100 mA. Its verified 4.5 V to 55 V input range provides substantial nominal rail headroom, while 55 dB PSRR at 100 kHz helps attenuate conducted switching noise before it reaches sensitive electronics. Place input and output capacitors close to the SOT-23A pins and protect against transient surges according to the vehicle electrical architecture. The fixed output simplifies harness-powered modules, but continuous 48 V operation at 100 mA creates approximately 4.3 W of estimated LDO dissipation.
おすすめ
Industrial 24V Control Rail
A 24 V industrial bus can power the MCP1792T-5002H/CB directly when the downstream circuit requires a fixed 5.0 V and no more than 100 mA. Its high-voltage input capability removes the need for a preceding 5 V rail and keeps the supply tree simple. Reported 400 uVrms output noise is useful for sensors, relay logic, and low-level analog blocks, although conducted emissions at the board input still require normal filtering. Estimated dissipation at 24 V input, 5 V output, and 100 mA is about 1.9 W, so PCB copper and enclosure temperature should be checked during worst-case loading.
おすすめ
High-Voltage Battery Instrumentation
The MCP1792T-5002H/CB is suited to battery-powered measurement modules operating across a broad input range, because the family supports 4.5 V to 55 V and is specifically associated with high-voltage battery packs. Its 45 uA quiescent current helps reduce standby demand, although load current dominates at 100 mA. The fixed 5.0 V output can power sensor interfaces, communication modules, or analog front ends without an adjustable feedback network. Designers should model worst-case conduction loss across the full battery range, add input surge protection as required, and verify capacitor behavior for the required temperature range.
おすすめ
Low-Noise Analog Interface
Use the MCP1792T-5002H/CB when a low-level analog or mixed-signal interface needs a compact 5 V source derived from a substantially higher rail. Verified data lists 400 uVrms output noise and 55 dB PSRR at 100 kHz, characteristics that favor a simple linear supply over an unfiltered switching source. The regulator can feed amplifier, converter, or sensor circuitry when its 100 mA current ceiling is sufficient. Keep the exposed package area free from obstruction, place input and output capacitors according to the manufacturer requirements, and test conducted and radiated emissions because regulator noise performance alone does not guarantee system-level EMC compliance.
おすすめ
48V Remote Sensor Node
A remote monitoring node can use the MCP1792T-5002H/CB to convert a 48 V nominal supply into 5.0 V for a sensor and communications section, provided average and peak load remain within 100 mA. The regulator's 55 V maximum input gives limited margin at high bus voltage, so designers must verify surge levels rather than relying solely on nominal rail voltage. At full load and 48 V input, estimated pass-device dissipation reaches about 4.3 W, making this arrangement more suitable for low-duty or moderate-load nodes unless PCB thermal performance is well established.
おすすめ
24V Relay and Logic Supply
The MCP1792T-5002H/CB can provide a compact 5 V source for relay drivers, status logic, and small control blocks in 24 V equipment. The fixed output eliminates resistor-divider design and the three-pin package reduces board area compared with many configurable regulators. Because the LDO cannot improve efficiency, the full 19 V difference appears across its pass element at full load: estimated dissipation is approximately 1.9 W at 100 mA. Use generous copper area, maintain clearance around the package, and keep relay-coil transients from coupling directly into the sensitive input or output nodes.
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: MCP1792T-5002H/CB — 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 | MCP1792T-5002H/CBVAO | MCP1799T-5002H/DBVAO | MCP1701T-5002I/CB | MCP1702T-1202E/CB | MCP1702T-3302E/CB |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SOT-23A-3 | SOT-23A-3 | SOT-23A-3 | SOT-23A-3 | SOT-23A-3 | SOT-23A-3 |
| Output Voltage | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 1.2 V | 3.3 V |
主な差別化要因
- High-voltage input range for a small three-pin regulator （vs MCP1701T-5002I/CB)
- Fixed 5.0 V output （vs MCP1702T-3302E/CB)
- Compact SOT-23A-3 integration （vs MCP1792T-5002H/CBVAO)
- Documented low-noise performance （vs MCP1702T-1202E/CB)
設計ノート
Estimated: at VIN = 48 V, VOUT = 5.0 V, and IOUT = 100 mA, pass-element dissipation is approximately (48 - 5) x 0.1 = 4.3 W. This estimate excludes detailed efficiency and series-resistance corrections and is not a datasheet limit. The SOT-23A package may require substantial PCB copper, a thermal pad strategy permitted by the land pattern, and careful ambient-temperature verification. Avoid assuming that the -40 C to +150 C rating guarantees safe 4.3 W operation at every board temperature.
Place the input capacitor, output capacitor, and regulator ground return close to their corresponding SOT-23A pins. Keep the high-current output and load-current paths compact to reduce voltage drops and radiated emissions. Route sensitive analog signals away from the input and output nodes, especially when the upstream source is a switching converter. The manufacturer datasheet controls required capacitance and layout; this page does not invent a capacitor value where verified data did not provide one.
Do not treat a 55 V input maximum as a 55 V continuous operating point without checking transients, tolerance, temperature coefficient, and protection response. Also do not confuse the three-pin MCP1792 with the five-pin MCP1793: MCP1793 adds an SHDN function, while MCP1792 does not. For a direct substitution, confirm the 5.0 V suffix, SOT-23A-3 pinout, 100 mA rating, dropout, output capacitance, and automotive qualification rather than relying on series name alone.
The MCP1792T-5002H/CB is a linear regulator, so its own switching-node emissions are lower than a DC-DC converter, but conducted noise from the upstream supply can still reach the output. Maintain a defined return-current path, use the shortest practical input loop, and avoid placing sensitive traces beneath or immediately beside the regulator input. For 48 V or automotive environments, add surge and transient protection according to the actual source impedance and system-level EMC requirements.
コンプライアンス情報
The verified JLCPCB listing includes a RoHS indication for MCP1792T-5002H/CB. Other compliance claims for the exact ordering code were not supplied and remain unknown. Related MCP1792 automotive suffix data is not automatically transferred to this exact MPN.
