MCP16301T-E/CH - 30V 600mA Buck DC-DC Converter SOT-23-6 | Microchip
N.º da peça: MCP16301T-E/CH ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $1.05 | $1,05 |
| 10 | $0.94 | $9,40 |
| 100 | $0.78 | $78,00 |
| 500 | $0.66 | $330,00 |
| 1.000 | $0.58 | $580,00 |
| 3.000 | $0.52 | $1.560,00 |
MCP16301T-E/CH Visão geral
A buck converter (also called a step-down switching regulator) is a type of switched-mode power supply (SMPS) that efficiently converts a higher DC input voltage to a lower DC output voltage by periodically switching an integrated power transistor and storing energy in an external inductor. Buck converters sit within the broader hierarchy: DC-DC converter -> switched-mode power supply -> power management IC -> semiconductor. They are widely preferred over linear regulators when the input-to-output voltage differential is large, because their switching topology achieves 90%+ efficiency versus the 30-60% typical of an LDO dissipating the same drop.
Key features include a 30V maximum input voltage rating, 600 mA continuous output current, integrated high-side N-channel MOSFET switch, fixed-frequency peak current-mode control, internal compensation, peak current limit, and overtemperature protection. The 6-pin SOT-23 footprint is one of the smallest packages available for a 30V-tolerant synchronous buck, making the part popular where PCB real estate is at a premium.
The MCP16301T-E/CH uses peak current-mode control with internal compensation, eliminating the need for an external compensation network and reducing the BOM to typically four external components (input cap, output cap, inductor, feedback resistor divider). The internal switch is a high-side N-channel MOSFET rated to handle the 30V input transients common in 12V automotive and 24V industrial bus systems. The fixed switching frequency (typically 500 kHz) allows predictable EMI filter design.
Typical applications include 12V automotive accessory rails, point-of-load (POL) conversion from 24V industrial buses, battery-powered portable equipment, distributed power in embedded systems, and as a compact local regulator after a higher-voltage bulk converter. The 2V to 15V adjustable output range covers the most common 3.3V, 5V, 9V, 12V and 15V system rails.
When designing with this device, use a low-ESR ceramic input capacitor to handle the switching ripple, an inductor rated for at least 1.5x the peak switch current, and place the feedback resistors close to the FB pin to minimize noise pickup. The exposed pad (pin 6) must be soldered to a thermal copper pour for reliable operation above 200 mA loads.
This page synthesizes distributor stock, current pricing, drop-in cross-brand alternatives, and practical design notes that go beyond what the manufacturer datasheet alone provides, helping engineers select, source, and implement the MCP16301T-E/CH with confidence.
Alternativas drop-in para MCP16301T-E/CH — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MCP16301T-I/CH
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MCP16301HT-E/CH
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MCP16301T-E/CHVAO
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MCP16301T-E/CH Classificações máximas e características elétricas
| Topologia | Buck (Step-Down) |
| Faixa de tensão de entrada | 4 V to 30 V |
| Faixa de tensão de saída | 2 V to 15 V (Adjustable) |
| Corrente máxima de saída | 600 mA |
| Frequência de comutação | 500 kHz (typical) |
| Control Mode | Peak Current-Mode |
| Integrated Switch | High-side N-channel MOSFET |
| Tipo de saída | Adjustable |
| Número de saídas | 1 |
| Faixa de temperatura de operação | -40 C to +125 C (Extended, 'E' suffix) |
| Efficiency (typical) | Up to 96% |
| Encapsulamento | SOT-23-6 |
| Tipo de montagem | Surface Mount |
| Nível MSL | 1 (per JEDEC J-STD-020) |
| Status RoHS | Compliant |
| Automotive Qualified | Yes (AEC-Q100, 'CH' automotive suffix per Microchip part numbering) |
Configuração de pinos do MCP16301T-E/CH
| Pino 1 | VIN — Input voltage supply (4V to 30V) |
| Pino 2 | SW — Switch node - connect to external inductor |
| Pino 3 | EN — Enable input (active high) |
| Pino 4 | FB — Feedback voltage input (connect to output resistor divider) |
| Pino 5 | GND — Ground reference |
| Pino 6 | PGND — Power ground and exposed thermal pad |
Aplicações típicas
MCP16301T-E/CH é adequado para 6 aplicaçãos: 12V Automotive Accessory Rails, 24V Industrial Bus Point-of-Load Conversion, Battery-Powered Portable Equipment, Distributed Power in Embedded Systems, Sensor and IoT Module Power, Compact Local Regulator After Higher-Voltage Bulk Converter.
12V Automotive Accessory Rails
The MCP16301T-E/CH fits 12V automotive accessory rails (cigarette lighter, infotainment, body controllers) because its 30V absolute maximum input comfortably survives 12V battery transients including load-dump pulses up to 35V. Delivering up to 600 mA at 5V or 3.3V from a 12V input, it achieves up to 96% efficiency, eliminating the need for a heatsink even at sustained load. AEC-Q100 qualification and the -40C to +125C extended temperature range make it qualified for under-hood modules. The integrated high-side switch and internal compensation reduce the BOM to four external components, enabling compact PCB layouts behind dashboard displays.
Recomendado
24V Industrial Bus Point-of-Load Conversion
The MCP16301T-E/CH is well suited for 24V industrial bus point-of-load (POL) conversion in PLCs, factory sensors, and process control modules. Its 30V input range covers 24V nominal with margin for industrial transients, while the adjustable 2V to 15V output supports common 3.3V, 5V, 9V, 12V, and 15V rail requirements. Peak current-mode control provides fast transient response to step loads typical of motor and solenoid-driven industrial systems. The fixed 500 kHz switching frequency allows designers to place switching noise away from sensitive analog measurement channels in the same enclosure.
Recomendado
Battery-Powered Portable Equipment
The MCP16301T-E/CH's 96% peak efficiency makes it attractive for battery-powered portable equipment where every milliwatt of quiescent loss matters. When converting a 4V-15V battery stack down to 3.3V or 5V system rails, the high efficiency extends runtime versus linear regulators, particularly at partial loads where buck efficiency remains above 90%. The SOT-23-6 footprint suits space-constrained handheld designs, and the minimal external BOM (input cap, output cap, inductor, feedback resistors) keeps the total solution size under 50 mm squared, enabling integration into wearable, sensor, or test-instrument form factors.
Recomendado
Distributed Power in Embedded Systems
The MCP16301T-E/CH works well as a local post-regulator after a higher-voltage bulk converter in distributed power architectures. Taking a pre-regulated 12V or 15V intermediate bus and producing a local 3.3V or 5V rail for an MCU, FPGA, or signal-chain ADC, it provides isolation between noisy digital loads and sensitive analog sections. Peak current-mode control delivers fast transient response to digital load steps (MCU wake/sleep), while the integrated high-side switch and internal compensation reduce the total BOM versus traditional buck converters requiring external compensation networks.
Recomendado
Sensor and IoT Module Power
The MCP16301T-E/CH fits sensor and IoT module power designs where a small, efficient 5V or 3.3V rail is needed from a higher-voltage source such as a 12V or 24V supply or a multi-cell battery pack. Its 600 mA output supports sensor clusters, MCU, and wireless radio loads simultaneously. The peak current-mode architecture provides predictable startup behavior, important for sensor modules that must power up cleanly without false-trigger events. Combined with its AEC-Q100 grade, the same part can serve both automotive sensor modules and industrial IoT edge nodes.
Recomendado
Compact Local Regulator After Higher-Voltage Bulk Converter
The MCP16301T-E/CH serves as a compact local regulator in two-stage power architectures, taking an intermediate 12V or 15V bus from a front-end bulk converter and producing a local 5V, 3.3V, or 2.5V rail with up to 600 mA. Its small SOT-23-6 footprint allows placement adjacent to the load it serves, minimizing PCB trace losses and improving transient response. The internal compensation eliminates external RC networks, simplifying layout and reducing component count. This architecture is common in telecom, networking, and test-instrument designs where multiple voltage domains must be isolated from a common bus.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MCP16301T-E/CH — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MCP16301T-I/CH | MCP16301HT-E/CH | MCP16301T-E/CHVAO |
|---|---|---|---|---|
| Package | SOT-23-6 | SOT-23-6 - same | SOT-23-6 - same | SOT-23-6 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Input Voltage Range | 4V to 30V | 4V to 30V | 4V to 36V | 4V to 30V |
| Maximum Output Current | 600 mA | 600 mA | 600 mA | 600 mA |
| Switching Frequency | 500 kHz | 500 kHz | 500 kHz | 500 kHz |
| Operating Temperature Range | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) |
| Automotive Grade (AEC-Q100) | Yes | No (industrial) | Yes | Yes (VAO automotive) |
| Control Mode | Peak Current-Mode | Peak Current-Mode | Peak Current-Mode | Peak Current-Mode |
Principais diferenciais
- 30V absolute maximum input in smallest SOT-23-6 footprint (vs MCP16301T-I/CH)
- Available as VAO automotive variant (vs MCP16301T-E/CHVAO)
- 36V variant available in same footprint for harsh transients (vs MCP16301HT-E/CH)
Notas de projeto
Estimated: at VIN=12V, VOUT=5V, IOUT=600 mA, the input current is approximately 250 mA (assuming 100% efficiency). Power dissipation is dominated by I²R losses in the internal MOSFET and inductor DCR; at full load the part dissipates roughly 250-400 mW. Per Microchip datasheet thermal data, the SOT-23-6 package requires the exposed pad (pin 6) to be soldered to at least 50 mm² of copper pour to keep junction temperature within rated limits at 600 mA sustained load.
Place the input ceramic capacitor as close as possible to the VIN pin and PGND pin (pin 1 and pin 6) to minimize the high-current loop area. Use a 1uF to 4.7uF X7R ceramic with 50V rating for the input cap per the Microchip datasheet typical application. The feedback resistor divider (R1 between VOUT and FB, R2 between FB and GND) must be routed away from the SW node to avoid noise coupling; keep R1/R2 traces short and adjacent to the FB pin (pin 4).
Do not exceed the 30V absolute maximum on the VIN pin - even brief transients above 30V can permanently damage the part. For 24V industrial bus applications with high transient voltage, choose the MCP16301HT-E/CH (36V variant) instead. Also note that the SOT-23-6 thermal pad (pin 6) must be soldered to a copper pour for proper thermal dissipation; missing the thermal pad connection can cause thermal shutdown at moderate loads and is a common reliability issue.
Keep the high-current loop (VIN cap - internal MOSFET - SW node - inductor - output cap - PGND - back to VIN cap) as tight as possible to minimize EMI. Use a ground pour on the top layer under the IC to provide a low-impedance return path. Place the feedback divider on the opposite side of the IC from the SW node, or shield it with a ground trace, to avoid noise injection into the FB pin that would degrade output voltage accuracy.
Informações de conformidade
RoHS and REACH compliant per Microchip product page. AEC-Q100 qualified for automotive applications. Lead-free and halogen-free. 'CH' suffix indicates SOT-23-6 automotive-grade package per Microchip part numbering convention.
