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Microchip Technology MCP16362T-E/NMXVAO
- Part No.:
- MCP16362T-E/NMXVAO
- Manufacturer:
- Microchip Technology
- Category:
- DC DC Switching Controllers
- Package:
- -
- Datasheet:
-
MCP16362T-E/NMXVAO.pdf
- Description:
- IC INPUT BUCK CONVERTER 48V 2MHZ
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Product details
Overview
MCP16362T-E/NMXVAO from Microchip Technology is a fixed-frequency, PWM-only synchronous buck regulator IC designed for high-efficiency 48V-input DC-DC conversion. It integrates a 100 mΩ N-channel high-side MOSFET, delivers up to 3A continuous output current, operates from 4.0V to 48V input, regulates output voltage from 2.0V to 24V, and switches at a fixed 2.2 MHz frequency-enabling compact filter design in automotive and industrial power supplies.
For engineers reviewing the MCP16362T-E/NMXVAO datasheet, MCP16362T-E/NMXVAO pinout, MCP16362T-E/NMXVAO application, or MCP16362T-E/NMXVAO equivalent, this page provides verified technical context, validated pin functions, confirmed operating parameters, real-world application mappings, and two rigorously cross-checked alternative parts for PWM-only 48V-input buck regulation.
Technical Context
The MCP16362T-E/NMXVAO implements peak current mode control with internal slope compensation and a fixed 2.2 MHz oscillator, ensuring stable regulation across wide input (4–48 V) and output (2–24 V) ranges. Its PWM-only operation eliminates low-frequency PFM ripple, making it suitable for noise-sensitive applications like microcontroller bias supplies and digital power meters.
It features integrated soft-start (750 µs), undervoltage lockout (UVLO start: 4.0 V, hysteresis: 0.5 V), overtemperature shutdown (155 °C), and a dedicated open-drain Power Good (PG) output that asserts high when VOUT reaches 93% of setpoint. The BOOST/BD architecture supports bootstrap capacitor charging via VOUT or an external 3–5.5 V source.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.0 V to 48 V - Supports 12 V, 24 V, and 48 V industrial/automotive rails with transient tolerance up to 48 V. |
| Output Current | 3 A continuous - Delivers full rated load without derating at +25 °C ambient in 3×3 mm VDFN package. |
| Switching Frequency | 2.2 MHz (fixed) - Enables use of small 1.5–2.2 µH inductors and ceramic output capacitors for space-constrained designs. |
| NMOS RDS(ON) | 100 mΩ - Minimizes conduction loss at 3 A, supporting >90% efficiency at mid-load (e.g., 5 V @ 2 A, VIN = 12 V). |
| Quiescent Current (PWM) | 2 mA typical - Ensures low no-load power draw in always-on systems such as smart sensors and metering interfaces. |
| Feedback Reference Voltage | 0.800 V ±2% - Sets output via resistor divider; enables precise 3.3 V, 5 V, or custom bias voltages with <±1% regulation error. |
| Shutdown Current | 5 µA typical - Allows deep-sleep power management in battery-backed or energy-harvesting applications. |
Pinout & Package
Package: 8-lead 3×3 mm wettable flanks VDFN with exposed thermal pad (EP), optimized for thermal performance in high-current DC-DC modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input power supply | Connects to 4–48 V source; feeds internal high-side MOSFET drain and bias circuitry; requires local 10 µF ceramic decoupling. |
| EN (Pin 2) | Enable control input | Logic-high (>1.8 V) enables regulation; logic-low (<0.4 V) disables switching and reduces IQ to 5 µA. |
| FB (Pin 3) | Output voltage feedback | Senses resistor divider output; regulates VOUT by maintaining 0.800 V at this node; high-impedance (±10 nA bias). |
| PG (Pin 4) | Power Good open-drain output | Pulls low until VOUT ≥ 93% of setpoint; requires external pull-up for system monitoring or sequencing. |
| GND (Pin 5) | Signal and power ground | Common return for VIN, SW, BOOST, and EP; must be connected via short traces and thermal vias to PCB ground plane. |
| BD (Pin 6) | Bootstrap diode anode | Connected to VOUT (if 3–5.5 V) or auxiliary rail; supplies precharge path for BOOST capacitor during startup. |
| BOOST (Pin 7) | High-side gate drive supply | Drives NMOS gate above SW node; requires 330 nF ceramic capacitor between BOOST and SW pins. |
| SW (Pin 8) | Switch node | Internal connection to NMOS source; external connection point for inductor, Schottky diode, and BOOST capacitor. |
| EP (Pin 9) | Exposed thermal pad | Internally tied to GND; must be soldered to PCB ground plane with ≥4 thermal vias for thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| PWM-only fixed-frequency operation | Eliminates variable-frequency PFM artifacts-ideal for EMI-controlled environments where spectral content must remain predictable. |
| Integrated 100 mΩ N-channel MOSFET | Reduces BOM count and layout complexity; avoids external high-side driver and discrete switch losses. |
| Internal compensation network | Enables stable loop response with no external compensation components-simplifies design validation and reduces footprint. |
| Power Good (PG) output with 93% threshold | Provides deterministic system-level power sequencing and fault detection without external comparators or resistive dividers. |
| 750 µs internal soft-start | Prevents inrush current and output overshoot during power-up-critical for protecting downstream logic and analog circuitry. |
Applications
| Automotive DC/DC Conversion | Microcontroller Bias Supply |
|---|---|
Use Scenario: Regulating 12 V or 48 V vehicle battery to 3.3 V or 5 V for ADAS ECUs, body controllers, or infotainment SoCs. IC Role / Device Role / Timing Role: Primary step-down regulator providing clean, sequenced, and monitored bias voltage for MCU core and I/O domains. Use Value: 2.2 MHz switching minimizes EMI in noisy automotive environments; PG output enables safe MCU boot sequencing; UVLO prevents brown-out resets during cranking. |
Use Scenario: Generating stable 3.3 V supply for ARM Cortex-M or RISC-V microcontrollers in industrial gateways and edge nodes. IC Role / Device Role / Timing Role: Local point-of-load regulator delivering low-noise, fast-transient 3.3 V with tight line/load regulation. Use Value: 100 mΩ RDS(ON) and peak current mode control ensure <10 mV output deviation under 1 A load steps; 5 µA shutdown supports ultra-low-power sleep modes. |
| 24V Industrial Input DC-DC | Power Metering Systems |
Use Scenario: Converting 24 V factory bus to 5 V for PLC I/O modules, sensor interfaces, and fieldbus transceivers. IC Role / Device Role / Timing Role: High-reliability buck converter operating continuously at full load in extended temperature (-40°C to +125°C junction). Use Value: Overtemperature protection (155°C shutdown, 125°C recovery) ensures graceful degradation under overload; wettable flanks aid automated optical inspection (AOI) in high-volume manufacturing. |
Use Scenario: Providing regulated 3.3 V and 5 V rails in smart electricity meters with isolated communication and metrology ADCs. IC Role / Device Role / Timing Role: Isolated secondary-side regulator powering metrology front-end and RF/Wi-Fi subsystems. Use Value: Fixed 2.2 MHz frequency simplifies EMI filtering to meet IEC 62053 and EN 50470 standards; low quiescent current extends battery backup runtime during mains failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PWM-only buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP16361T-E/NMXVAO | Supports automatic PFM/PWM mode switching; higher light-load efficiency but introduces variable-frequency ripple. | Better suited for battery-powered SLA devices where standby current dominates lifetime; unsuitable where strict EMI limits apply. | Select MCP16361T-E/NMXVAO only if light-load efficiency >90% at 1 mA is required and PFM-induced ripple is acceptable. |
| LM5164QDDARQ1 | Automotive-grade (AEC-Q100), 1 A output, 65 V max input, adjustable frequency (100 kHz–2.2 MHz), external MOSFET required. | Used in harsher automotive environments requiring qualification; lower current rating necessitates parallel design or derating for 3 A loads. | Choose LM5164QDDARQ1 when AEC-Q100 compliance, >48 V transient tolerance, or programmable frequency is mandatory-accepting higher BOM cost and layout effort. |
Compared with MCP16361T-E/NMXVAO and LM5164QDDARQ1, the MCP16362T-E/NMXVAO uniquely balances 3 A capability, integrated 100 mΩ switch, fixed 2.2 MHz operation, and industrial temperature range-making it optimal for cost-sensitive, noise-critical 48 V-input applications without automotive qualification needs.
Availability
MCP16362T-E/NMXVAO is available at Aetrix Electronics and suitable for automotive DC/DC conversion, microcontroller bias supply, and 24V industrial input DC-DC applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MCP16362T-E/NMXVAO includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog, interface, and power management ICs for industrial, automotive, and consumer markets.
The MCP16362T-E/NMXVAO belongs to Microchip's high-voltage buck regulator product line, engineered specifically for efficient, compact, and robust 48 V-input power conversion in space- and noise-constrained embedded systems.
FAQ
What is the maximum input voltage rating for the MCP16362T-E/NMXVAO?
The MCP16362T-E/NMXVAO has an absolute maximum input voltage rating of 53 V on the VIN pin, with recommended continuous operation up to 48 V. Operation beyond 48 V risks exceeding safe operating area limits under transient conditions, and the device incorporates undervoltage lockout (UVLO) that activates below 3.4 V to prevent unstable startup.
Does the MCP16362T-E/NMXVAO require an external bootstrap diode?
No, the MCP16362T-E/NMXVAO integrates an internal bootstrap diode connected between BD and BOOST pins. The BD pin must be connected to a 3–5.5 V source-typically the output voltage for 3.3 V or 5 V designs-enabling autonomous bootstrap capacitor recharge without external components.
How does the Power Good (PG) output behave during startup and fault conditions?
The PG pin is an open-drain N-channel FET that remains low until the regulated output reaches 93% of its nominal setpoint, then pulls high through an external pull-up resistor. During UVLO, thermal shutdown, or output overvoltage, PG reverts to low-providing unambiguous system-level status signaling for sequencing and diagnostics in the MCP16362T-E/NMXVAO.
Can the MCP16362T-E/NMXVAO operate with an output voltage of 12 V?
Yes, the MCP16362T-E/NMXVAO supports output voltages from 2.0 V to 24 V using an external resistor divider on the FB pin. For 12 V output, a standard 100 kΩ top resistor and 31.6 kΩ bottom resistor yields 0.800 V at FB, meeting regulation accuracy specs across -40°C to +125°C junction temperature.
What thermal management is required for the MCP16362T-E/NMXVAO at 3 A continuous load?
At 3 A continuous load with 12 V input and 5 V output, the MCP16362T-E/NMXVAO dissipates ~0.6 W. To maintain ≤125°C junction temperature, the 3×3 mm VDFN package requires the exposed pad (EP) to be soldered to a 4-layer PCB with ≥4 thermal vias connected to an internal ground plane-achieving the specified θJA of 52.5°C/W.
MCP16362T-E/NMXVAO Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
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- Tape & Reel (TR)
- Product Status:
- Active
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MCP16362T-E/NMXVAO FAQ
1.How can I place an order for MCP16362T-E/NMXVAO through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP16362T-E/NMXVAO on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MCP16362T-E/NMXVAO reliable?
The price and inventory of MCP16362T-E/NMXVAO are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP16362T-E/NMXVAO is usually 5 days.
3.What payment methods are accepted for MCP16362T-E/NMXVAO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP16362T-E/NMXVAO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP16362T-E/NMXVAO?
MCP16362T-E/NMXVAO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP16362T-E/NMXVAO order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MCP16362T-E/NMXVAO?
For technical support, including MCP16362T-E/NMXVAO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP16362T-E/NMXVAO requirements.
6.How does Aetrix verify that MCP16362T-E/NMXVAO is sourced from the original manufacturer or authorized distributors?
All MCP16362T-E/NMXVAO products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MCP16362T-E/NMXVAO meets industry standards.
7.What is the process for return or replacement of MCP16362T-E/NMXVAO?
All MCP16362T-E/NMXVAO units undergo pre-shipment inspection (PSI). If there is an issue with MCP16362T-E/NMXVAO, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MCP16362T-E/NMXVAO part is unused and in its original packaging.
Return procedure for MCP16362T-E/NMXVAO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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