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Microchip Technology MCP16301T-E/CHVAO
- Part No.:
- MCP16301T-E/CHVAO
- Manufacturer:
- Microchip Technology
- Package:
- SOT-23-6
- Datasheet:
-
MCP16301T-E/CHVAO.pdf
- Description:
- IC REG BUCK ADJ 600MA SOT23-6
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MCP16301T-E/CHVAO from Microchip Technology is a high-efficiency, fixed-frequency, non-synchronous buck DC-DC converter with integrated 460 mΩ N-channel MOSFET, operating from 4.0V to 30V input and delivering up to 600 mA output current at 2.0V–15.0V adjustable output voltage, 2% accuracy, and 500 kHz switching frequency - used in PIC® microcontroller bias supplies and industrial 24V DC-DC conversion.
For engineers reviewing the MCP16301T-E/CHVAO datasheet, MCP16301T-E/CHVAO pinout, MCP16301T-E/CHVAO application, or MCP16301T-E/CHVAO equivalent, key selection criteria include its AEC-Q100 qualified operation, internal peak current mode control with slope compensation, SOT-23-6 package thermal resistance (θJA = 190.5°C/W), and compatibility with ceramic output capacitors without external compensation.
Technical Context
The MCP16301T-E/CHVAO 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 switch is driven by a bootstrap circuit requiring 3.0V–5.5V boost voltage derived from VOUT or auxiliary source.
It integrates undervoltage lockout (UVLO start: 3.5V, hysteresis: 0.5V), overtemperature protection (trip at +150°C, resume at +120°C), internal soft-start (300 µs), and cycle-by-cycle current limiting (1.3 A typical). Feedback uses a precision 0.800 V reference with ±250 nA bias current and 0.01%/V line regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.0V to 30V - supports wide industrial and automotive input rails including 24V systems with headroom margin. |
| Output Voltage Range | 2.0V to 15.0V - adjustable via external resistor divider; enables single IC to serve multiple rail requirements (e.g., 3.3V, 5V, 12V). |
| Max Output Current | 600 mA continuous - guaranteed across full input range and -40°C to +125°C ambient, enabling compact power solutions. |
| Switch RDS(ON) | 460 mΩ - low conduction loss improves efficiency at medium loads; enables >96% typical efficiency at 5V/600mA. |
| Feedback Reference | 0.800 V ±2% - tight tolerance ensures accurate output regulation without trimming; sets VOUT = 0.8 × (1 + RTOP/RBOT). |
| Switching Frequency | 500 kHz (±75 kHz) - enables use of small 10–68 µH inductors and ceramic capacitors, reducing solution size vs. lower-frequency alternatives. |
| Quiescent Current | 2 mA typical - low operating IQ minimizes no-load power loss in battery-backed or always-on systems. |
| Shutdown Current | 7 µA typical - ultra-low disable current supports energy-sensitive applications like SLA battery-powered devices. |
Pinout & Package
Package: SOT-23-6 surface-mount package with θJA = 190.5°C/W, rated for -40°C to +125°C ambient operation and AEC-Q100 qualification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: BOOST | Floating gate-drive supply node | Connects to bootstrap capacitor (100 nF) between BOOST and SW; supplies >3.0V bias to turn on high-side N-MOSFET. |
| 2: GND | Power and signal reference ground | Low-impedance return path for input/output capacitors and feedback network; trace length must be minimized to reduce noise coupling. |
| 3: VFB | Output voltage feedback input | Senses resistor divider output; regulates VOUT to 0.800 V; ±250 nA bias current allows high-value resistors (e.g., 10 kΩ/31.6 kΩ for 3.3V). |
| 4: EN | Logic-enable control input | Active-high enable (VIH ≥ 1.4 V); logic-low (< 0.4 V) disables switching and reduces IQ to 7 µA - used for sequencing or standby control. |
| 5: VIN | Main power input | Accepts 4.0–30V input; requires local 10 µF ceramic decoupling close to pin; powers internal regulator and switch driver. |
| 6: SW | Internal switch node | Connects to inductor and Schottky freewheeling diode; experiences fast dV/dt transitions; layout critical for EMI and efficiency. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated N-Channel Buck Switch | 460 mΩ RDS(ON) enables high efficiency (>96%) without external MOSFET or driver, reducing BOM count and PCB area. |
| Internal Compensation | Full error amplifier + slope compensation integrated - eliminates external compensation network, simplifying design and validation. |
| Stable with Ceramic Capacitors | No ESR requirement on output capacitor - allows use of low-profile, high-reliability X7R/X5R ceramics instead of bulkier electrolytics. |
| Peak Current Mode Control | Enables fast transient response and inherent cycle-by-cycle current limiting (1.3 A), improving reliability under short-circuit conditions. |
| AEC-Q100 Qualified | Validated for automotive-grade reliability (Grade 1: -40°C to +125°C), supporting under-hood and infotainment power applications. |
| Internal Soft-Start | 300 µs controlled VOUT ramp prevents inrush current and overshoot during startup - eliminates need for external soft-start circuitry. |
Applications
| PIC® Microcontroller Bias Supply | 24V Industrial DC-DC Conversion |
|---|---|
Use Scenario: Powering 3.3V or 5V VDD rails for PIC® MCU and dsPIC® DSC in programmable logic controllers and sensor nodes. IC Role / Device Role / Timing Role: Primary step-down regulator supplying regulated bias voltage with tight load/line regulation and low-noise operation. Use Value: Delivers 600 mA at 3.3V from 12–24V input with <2% output error, eliminating need for secondary LDO and reducing thermal stress. |
Use Scenario: Converting unregulated 24V factory bus to 5V or 12V for I/O modules, HMI displays, and fieldbus interfaces. IC Role / Device Role / Timing Role: High-input-voltage buck controller providing robust, compact DC-DC conversion in harsh industrial environments. Use Value: Operates across full -40°C to +125°C junction range with AEC-Q100 reliability; UVLO (3.5V) prevents brownout-induced resets. |
| Wall Cube Regulation | SLA Battery-Powered Devices |
Use Scenario: Regulating rectified AC adapter output (e.g., 9–12V DC) to stable 3.3V/5V for consumer electronics and set-top boxes. IC Role / Device Role / Timing Role: Efficient primary regulator replacing linear regulators or discrete buck solutions in space-constrained wall adapters. Use Value: Achieves >96% efficiency at 5V/600mA, minimizing heat buildup in sealed enclosures and extending adapter lifetime. |
Use Scenario: Powering portable medical monitors, security sensors, or backup communication units from 6–12V sealed lead-acid batteries. IC Role / Device Role / Timing Role: Low-quiescent-current (2 mA) buck converter maintaining regulated output as battery discharges from 12.6V to 6V. Use Value: Shutdown current of only 7 µA preserves battery life during extended standby; wide VIN range avoids premature cutoff. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2451DT-LF-Z (Monolithic Power) | 4.5–36V input, 2A output, 2.5% VREF accuracy, requires external compensation, no AEC-Q100 rating | Higher current capability but larger solution size and no automotive qualification; less suitable for safety-critical designs | Select MP2451DT-LF-Z only when >600 mA output or cost-driven non-automotive industrial use is required. |
| TPS54202DRCT (Texas Instruments) | 4.5–28V input, 2A output, 1% VREF accuracy, integrated FET, 500 kHz, requires external compensation | Superior reference accuracy and higher current, but lacks AEC-Q100 qualification and has higher quiescent current (25 µA shutdown) | Choose TPS54202DRCT for precision 1% regulation needs where automotive qualification is not mandatory. |
Compared with MP2451DT-LF-Z and TPS54202DRCT, the MCP16301T-E/CHVAO offers AEC-Q100 qualification, internal compensation, and lower shutdown current (7 µA), making it optimal for space-constrained, automotive-qualified, and battery-sensitive applications - despite its 600 mA limit.
Availability
MCP16301T-E/CHVAO is available at Aetrix Electronics and suitable for PIC® microcontroller bias supplies, 24V industrial DC-DC conversion, and SLA battery-powered devices requiring stable component supply, automotive-grade reliability, and compact SOT-23-6 footprint.
Supply support for MCP16301T-E/CHVAO 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 Inc. is a leading provider of microcontrollers, analog components, and power management ICs, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The MCP16301/H product line delivers highly integrated, AEC-Q100-qualified buck regulators targeting automotive, industrial, and consumer applications where small size, high efficiency, and minimal external components are critical.
FAQ
What is the maximum output current capability of the MCP16301T-E/CHVAO across its full input voltage range?
The MCP16301T-E/CHVAO guarantees 600 mA of continuous output current across its entire 4.0V to 30V input voltage range and over the full -40°C to +125°C ambient temperature range. At specific output voltages (3.3V, 5V, 12V), it can deliver up to 1A at +25°C ambient in the SOT-23 package - but this higher current is derated with temperature and input voltage per Figure 2-6 in the datasheet. The 600 mA rating ensures reliable operation under worst-case thermal and electrical conditions.
How does the MCP16301T-E/CHVAO achieve stable regulation without external compensation components?
The MCP16301T-E/CHVAO integrates full Type II compensation - including error amplifier, transconductance stage, and slope compensation - within the die. This eliminates the need for external RC networks typically required in voltage-mode or basic current-mode controllers. The internal compensation is optimized for stability with standard ceramic output capacitors and recommended inductor values (e.g., 15 µH for 3.3V), enabling robust performance across line, load, and temperature variations without tuning.
Can the MCP16301T-E/CHVAO operate with an output voltage lower than 2.0V or higher than 15.0V?
No - the MCP16301T-E/CHVAO is specified and characterized for output voltages strictly between 2.0V and 15.0V. The internal 0.800 V reference and feedback architecture are designed for this range; attempting to set VOUT outside these limits (e.g., 1.8V or 16V) will result in loss of regulation, degraded accuracy, or failure to maintain steady-state operation. For voltages beyond this range, Microchip recommends alternative regulators such as the MCP16311 or external reference solutions.
What is the role of the BOOST pin, and how should it be implemented in a typical design?
The BOOST pin supplies gate drive voltage to the internal high-side N-MOSFET. It must be biased between 3.0V and 5.5V relative to SW. In most 3.3V or 5V output designs, a 100 nF ceramic capacitor is connected between BOOST and SW, with the boost voltage sourced from VOUT via a Schottky diode. For outputs outside 3.0–5.5V (e.g., 12V), a Zener-based shunt or series regulator must generate the required boost voltage - as detailed in Figures 4-3 and 4-4 of the datasheet.
Is the MCP16301T-E/CHVAO pin-compatible with other members of the MCP16301/H family, such as the MCP16301H?
Yes - the MCP16301T-E/CHVAO shares identical pinout, package (SOT-23-6), and functional interface with all MCP16301/H variants. However, the MCP16301H differs in input voltage range (4.7V–36V vs. 4.0V–30V) and UVLO thresholds (3.5V/4.7V vs. 3.5V/4.0V), meaning direct substitution may affect startup behavior in low-VIN applications. Always verify input voltage margins and UVLO hysteresis when interchanging variants.
MCP16301T-E/CHVAO 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):
- 4V
- Voltage - Input (Max):
- 30V
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MCP16301T-E/CHVAO FAQ
1.How can I place an order for MCP16301T-E/CHVAO through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP16301T-E/CHVAO 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 MCP16301T-E/CHVAO reliable?
The price and inventory of MCP16301T-E/CHVAO are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP16301T-E/CHVAO is usually 5 days.
3.What payment methods are accepted for MCP16301T-E/CHVAO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP16301T-E/CHVAO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP16301T-E/CHVAO?
MCP16301T-E/CHVAO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP16301T-E/CHVAO 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 MCP16301T-E/CHVAO?
For technical support, including MCP16301T-E/CHVAO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP16301T-E/CHVAO requirements.
6.How does Aetrix verify that MCP16301T-E/CHVAO is sourced from the original manufacturer or authorized distributors?
All MCP16301T-E/CHVAO 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 MCP16301T-E/CHVAO meets industry standards.
7.What is the process for return or replacement of MCP16301T-E/CHVAO?
All MCP16301T-E/CHVAO units undergo pre-shipment inspection (PSI). If there is an issue with MCP16301T-E/CHVAO, 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 MCP16301T-E/CHVAO part is unused and in its original packaging.
Return procedure for MCP16301T-E/CHVAO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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