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Microchip Technology MCP16301HT-E/CH
- Part No.:
- MCP16301HT-E/CH
- Manufacturer:
- Microchip Technology
- Package:
- SOT-23-6
- Datasheet:
-
MCP16301HT-E/CH.pdf
- Description:
- IC REG BUCK ADJ 600MA SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:10,378
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Product details
Overview
MCP16301HT-E/CH from Microchip Technology is a high-efficiency, fixed-frequency, non-synchronous buck DC-DC converter with integrated 460 mΩ N-channel MOSFET, operating from 4.7V to 36V input and delivering up to 600 mA output current at 2.0V–15.0V adjustable output voltage, 2% output voltage accuracy, and 500 kHz switching frequency - used in automotive bias supplies and industrial 24V DC-DC conversion.
For engineers reviewing the MCP16301HT-E/CH datasheet, MCP16301HT-E/CH pinout, MCP16301HT-E/CH application, or MCP16301HT-E/CH equivalent, key selection criteria include AEC-Q100 qualification, internal peak current mode control with slope compensation, SOT-23-6 package thermal resistance (θJA = 190.5°C/W), UVLO thresholds (3.5V start / 3.0V stop), and soft-start timing (300 µs).
Technical Context
The MCP16301HT-E/CH implements fixed-frequency (425–550 kHz) peak current mode control with internal slope compensation to prevent subharmonic oscillation above 50% duty cycle. Its high-side N-MOSFET gate drive relies on an external bootstrap capacitor charged via the SW node and a blocking diode, requiring boost voltage between 3.0V and 5.5V.
It integrates internal compensation, undervoltage lockout (UVLO) with 0.5V hysteresis, overtemperature shutdown at +150°C (resumes at +120°C), and cycle-by-cycle current limiting (1.3A typical). The device regulates output using a resistor divider referenced to a trimmed 0.800V feedback voltage (±2% over -40°C to +125°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.7V to 36V - supports 24V industrial and automotive battery inputs without external pre-regulation. |
| Output Voltage Range | 2.0V to 15.0V - adjustable via external resistor divider; enables single IC to serve multiple rail requirements. |
| Max Output Current | 600 mA continuous - guaranteed across full input range and temperature (-40°C to +125°C junction). |
| Switching Frequency | 500 kHz (typical) - enables compact 15–68 µH inductors and ceramic output capacitors per VOUT. |
| Feedback Voltage | 0.800 V ±2% - sets precise output regulation; allows 2% total output accuracy with 1% resistors. |
| UVLO Threshold | 3.5V start / 3.0V stop - prevents erratic startup during brown-out; 0.5V hysteresis avoids chatter. |
| Thermal Shutdown | +150°C activation - protects die under overload or poor PCB thermal design; resumes at +120°C. |
| Quiescent Current | 2 mA (active), 7 µA (shutdown) - minimizes standby power loss in always-on systems. |
Pinout & Package
Package: SOT-23-6 surface-mount, 1.5 mm × 2.9 mm footprint, θJA = 190.5°C/W (JEDEC standard), rated for -40°C to +125°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - BOOST | Floating gate-drive supply node | Connects to bootstrap capacitor (100 nF) between BOOST and SW; must be biased 3.0–5.5V above SW for NMOS turn-on. |
| 2 - GND | Power and signal reference ground | Low-impedance return path for input/output capacitors, feedback divider, and enable logic; minimize trace length. |
| 3 - VFB | Output voltage sensing input | Accepts 0.800V reference; connects to resistor divider (e.g., 31.6 kΩ/10 kΩ for 3.3V); high-impedance (±10 nA bias). |
| 4 - EN | Logic-level enable control | Active-high (≥1.4V); <0.4V disables regulator and reduces IQ to 7 µA; must not float. |
| 5 - VIN | Main power input | Supplies internal bias and switch; requires local 10 µF ceramic decoupling close to pin; absolute max 40V. |
| 6 - SW | Internal switch node | Connects to inductor, Schottky freewheeling diode cathode, and BOOST capacitor; high dv/dt node. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated N-Channel Buck Switch | 460 mΩ RDS(ON) - enables >96% efficiency at 5V/600mA with minimal conduction loss. |
| Internal Soft-Start | 300 µs output ramp time - prevents inrush current and output overshoot during EN assertion. |
| Stable with Ceramic Capacitors | No ESR requirement - eliminates need for tantalum or aluminum electrolytic output caps; reduces BOM count. |
| Peak Current Limit Protection | 1.3A typical - provides robust short-circuit and overload protection without external sensing. |
| AEC-Q100 Qualified | Grade 1 (-40°C to +125°C) - validated for automotive applications including infotainment and body electronics. |
| Internal Compensation | Full error amplifier + slope compensation - eliminates external compensation network; simplifies layout. |
Applications
| PIC® Microcontroller Bias Supply | 24V Industrial DC-DC Conversion |
|---|---|
Use Scenario: Powering PIC16/PIC18 microcontrollers in automotive control modules with wide-input 12V/24V battery rails. IC Role / Device Role / Timing Role: Primary step-down regulator generating stable 3.3V or 5.0V VDD rail from unregulated vehicle battery. Use Value: AEC-Q100 qualification ensures reliability; 600 mA output supports MCU + peripherals; UVLO prevents reset during cranking. |
Use Scenario: Converting 24V factory floor supply to 3.3V/5V for PLC I/O modules and sensor interfaces. IC Role / Device Role / Timing Role: Compact, high-efficiency buck regulator replacing linear regulators in space-constrained DIN-rail enclosures. Use Value: 96% efficiency minimizes heat rise in sealed housings; SOT-23-6 footprint saves PCB area vs. TO-220 solutions. |
| DSL/Cable Modem Power | SLA Battery-Powered Devices |
Use Scenario: Generating 3.3V and 5.0V rails in broadband access equipment powered from 12V wall adapters. IC Role / Device Role / Timing Role: Secondary DC-DC stage providing low-noise digital supply after AC-DC front-end. Use Value: Fixed 500 kHz frequency eases EMI filtering; ceramic-capacitor compatibility improves long-term reliability vs. electrolytics. |
Use Scenario: Regulating power for portable medical monitors or security sensors powered by 12V sealed lead-acid batteries. IC Role / Device Role / Timing Role: Primary buck converter maintaining regulated output as battery discharges from 13.8V to 10.5V. Use Value: Wide 4.7–36V input range accommodates full SLA discharge curve; 7 µA shutdown current extends runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMR14020SDDAR | 40V input, 2A output, 2.1 MHz switching, requires external compensation | Higher current, faster frequency - suited for higher-power designs needing smaller magnetics | Select when >600 mA load or tighter transient response required; adds compensation complexity. |
| TPS54202DDCR | 6V–18V input, 2A output, integrated FETs, 400–2500 kHz adjustable frequency | Narrower input range, no AEC-Q100 rating - limited to commercial/industrial use | Choose for cost-sensitive non-automotive applications where 36V input headroom is unnecessary. |
Compared with MCP16301HT-E/CH, LMR14020SDDAR offers higher output current and frequency but lacks AEC-Q100 validation and requires external loop compensation; TPS54202DDCR provides higher integration and flexibility but cannot support 24V/36V industrial or automotive inputs.
Availability
MCP16301HT-E/CH is available at Aetrix Electronics and suitable for automotive control units, industrial PLCs, and DSL/cable modem power supplies requiring stable component supply, AEC-Q100 compliance, and SOT-23-6 thermal performance.
Supply support for MCP16301HT-E/CH 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, and power management ICs, with broad automotive and industrial certifications.
The MCP16301/H product line delivers compact, high-voltage buck regulators for space-constrained applications requiring AEC-Q100 reliability and minimal external components - targeting automotive body electronics and industrial control power rails.
FAQ
What input voltage range does the MCP16301HT-E/CH support?
The MCP16301HT-E/CH supports an input voltage range of 4.7V to 36V, making it suitable for 24V industrial systems and automotive applications where battery voltage varies widely. This range is confirmed in the Absolute Maximum Ratings and DC Characteristics tables of the official datasheet DS20005004E, with UVLO activation at 3.5V rising and deactivation at 3.0V falling.
How is the output voltage set on the MCP16301HT-E/CH?
The MCP16301HT-E/CH uses a resistor divider connected to the VFB pin to set the output voltage, referenced to an internal 0.800V ±2% precision bandgap. For example, a 31.6 kΩ top resistor and 10 kΩ bottom resistor yields 3.3V output. The device's internal transconductance amplifier ensures system gain remains unaffected by resistor values, allowing flexibility in noise vs. quiescent current trade-offs.
Does the MCP16301HT-E/CH require external compensation components?
No, the MCP16301HT-E/CH features fully integrated compensation, including error amplifier and slope compensation circuitry. This eliminates the need for external RC networks typically required in voltage-mode or uncompensated current-mode controllers. The internal design ensures stability with ceramic output capacitors across its full operating range.
What package type is used for the MCP16301HT-E/CH?
The MCP16301HT-E/CH is housed in a 6-lead SOT-23 package (1.5 mm × 2.9 mm), with thermal resistance θJA = 190.5°C/W per JEDEC JESD51-3. This compact footprint supports high-density PCB layouts while meeting AEC-Q100 Grade 1 temperature requirements (-40°C to +125°C junction).
Is the MCP16301HT-E/CH qualified for automotive applications?
Yes, the MCP16301HT-E/CH passes Automotive Electronics Council AEC-Q100 reliability testing (Grade 1), confirming suitability for automotive environments with operating junction temperatures from -40°C to +125°C. This qualification is explicitly stated in the Features section of the official datasheet DS20005004E.
MCP16301HT-E/CH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.7V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 2V
- Voltage - Output (Max):
- 15V
- Current - Output:
- 600mA
- Frequency - Switching:
- 500kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MCP16301HT-E/CH FAQ
1.How can I place an order for MCP16301HT-E/CH through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP16301HT-E/CH 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 MCP16301HT-E/CH reliable?
The price and inventory of MCP16301HT-E/CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP16301HT-E/CH is usually 5 days.
3.What payment methods are accepted for MCP16301HT-E/CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP16301HT-E/CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP16301HT-E/CH?
MCP16301HT-E/CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP16301HT-E/CH 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 MCP16301HT-E/CH?
For technical support, including MCP16301HT-E/CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP16301HT-E/CH requirements.
6.How does Aetrix verify that MCP16301HT-E/CH is sourced from the original manufacturer or authorized distributors?
All MCP16301HT-E/CH 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 MCP16301HT-E/CH meets industry standards.
7.What is the process for return or replacement of MCP16301HT-E/CH?
All MCP16301HT-E/CH units undergo pre-shipment inspection (PSI). If there is an issue with MCP16301HT-E/CH, 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 MCP16301HT-E/CH part is unused and in its original packaging.
Return procedure for MCP16301HT-E/CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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