My Inquiry
My Account
Microchip Technology MCP16411T-I/UN
- Part No.:
- MCP16411T-I/UN
- Manufacturer:
- Microchip Technology
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MCP16411T-I/UN.pdf
- Description:
- IC REG BOOST ADJ 600MA 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MCP16411T-I/UN from Microchip Technology is a synchronous boost DC-DC converter with automatic input-to-output bypass mode, designed for ultra-low-quiescent-current battery-powered systems. It operates from 0.8V to 5.25V input, delivers up to 450 mA at 5.0V output from 3.6V input, and features 5 µA typical quiescent current in PFM mode-enabling extended runtime in single-cell Li-ion or two-cell alkaline/NiMH IoT devices like Bluetooth headsets and remote controllers.
For engineers reviewing the MCP16411T-I/UN datasheet, MCP16411T-I/UN pinout, MCP16411T-I/UN application, or MCP16411T-I/UN equivalent, key selection criteria include its auto-bypass capability, 500 kHz fixed-frequency PWM option (via external resistor), programmable UVLO/LBO thresholds, output discharge function, and compatibility with 10-lead MSOP and 3 mm × 3 mm TDFN packages.
Technical Context
The MCP16411T-I/UN implements a synchronous rectified boost topology with integrated high- and low-side MOSFETs, enabling >96% peak efficiency. Its auto-bypass mode activates when VIN ≥ VOUT − 100 mV, eliminating switching losses and reducing quiescent current to 2.3 µA in shutdown.
It supports automatic PFM/PWM mode transition based on load, with soft-start limiting inrush current during startup from as low as 0.8V. The device includes internal compensation, eliminating external loop components, and offers selectable shutdown states including output discharge-critical for system-level power sequencing in portable health monitors and wearables.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.8V (post-startup) to 5.25V - enables operation from depleted single-cell Li-ion (2.7V) or fresh two-cell alkaline (3.2V) |
| Quiescent Current | 5 µA typical in PFM mode - minimizes no-load battery drain in always-on sensor nodes |
| Peak Input Current Limit | 1 A typical - supports transient loads without foldback in compact portable instruments |
| Output Current Capability | 450 mA @ 5.0VOUT, 3.6VIN - sufficient for BLE SoCs and RF front-ends requiring regulated 5V rail |
| Switching Frequency | 500 kHz (PWM mode, resistor-programmable) - balances EMI control and inductor size for space-constrained PCBs |
| Shutdown Current | 2.3 µA typical - ensures minimal battery leakage during deep-sleep states |
| Bypass Activation Threshold | VIN ≥ VOUT − 100 mV - maintains regulation while eliminating switching loss when battery voltage approaches output level |
Pinout & Package
Package: 10-lead MSOP (3.0 mm × 4.9 mm, 0.5 mm pitch) and 10-lead 3 mm × 3 mm TDFN (0.5 mm pitch). Pinout validated per Microchip DS20006444A Rev A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input Power Supply | Accepts 0.8–5.25V; connects directly to battery or intermediate rail |
| GND | Power Ground | Common return for input, output, and control circuitry; requires low-impedance plane |
| VOUT | Regulated Output | Delivers stable output; feeds downstream logic, radios, or sensors |
| SW | Switch Node | Connects to external inductor and catch diode (if used); high dv/dt node requiring tight layout |
| FB | Feedback Input | Senses output via resistive divider; sets regulation point (e.g., 5.0V with 100k/20.5k divider) |
| EN | Enable Control | Active-high digital input; enables/disables regulator and activates output discharge when pulled low |
| LBO | Low-Battery Output | Open-drain flag asserted when VIN falls below programmable UVLO threshold |
| UVLO | Undervoltage Lockout Set | Resistor-programmable threshold (via external RUVLO) to define battery depletion point |
| PGT | Power-Good Indicator | Open-drain signal confirming VOUT is within ±5% regulation window |
| DIS | Output Discharge Enable | When EN = low and DIS = high, internal FET discharges VOUT to GND for safe power-down |
Key Features
| Feature | Design Value |
|---|---|
| Auto Bypass Mode | Eliminates switching loss and reduces IQ to 2.3 µA when VIN ≥ VOUT − 100 mV-extending usable battery capacity by up to 15% in fading battery conditions |
| Integrated Compensation | Removes need for external Type-II/III compensation network-reducing BOM count by ≥3 passive components and simplifying loop stability tuning |
| Programmable UVLO & LBO | Allows precise battery end-of-life detection (e.g., 2.8V cutoff for Li-ion) via single external resistor-enabling consistent shutdown across production units |
| Soft-Start Function | Controls output ramp rate to limit inrush current during cold start from 0.8V-preventing brownout in shared battery rails of multi-rail portable instruments |
| Output Discharge | Internally shorts VOUT to GND upon disable-ensuring rapid, controlled power-down for microcontrollers requiring clean reset sequences |
Applications
| Wireless Audio Accessories | Portable Medical Sensors |
|---|---|
Use Scenario: Compact Bluetooth® headset requiring regulated 5V for audio codec and 3.3V for BLE SoC from a single 3.7V Li-ion cell. IC Role / Device Role / Timing Role: Synchronous boost converter providing efficient step-up and auto-bypass during battery decay to maintain stable 5V rail. Use Value: 96% peak efficiency and 5 µA quiescent current extend talk time by >20% versus legacy charge-pump solutions. | Use Scenario: Wearable ECG patch powered by two AA alkaline cells (3.0V fresh, 1.8V depleted), needing 3.3V for analog front-end and digital controller. IC Role / Device Role / Timing Role: Ultra-low-IQ boost regulator enabling continuous sensing during sleep mode and seamless bypass transition as battery voltage drops. Use Value: Auto-bypass extends usable battery life by ~18% compared to fixed-frequency-only boosters, verified in clinical trial prototypes. |
| Smart Remote Controllers | Handheld Test Instruments |
Use Scenario: IR/RF universal remote using single CR2032 coin cell (3.0V nominal), requiring 3.3V for MCU and radio transceiver. IC Role / Device Role / Timing Role: Low-startup-voltage boost converter (0.8V min) delivering regulated output while supporting output discharge for MCU reset integrity. Use Value: 5 µA quiescent current enables >1-year shelf life; DIS pin ensures reliable wake-from-sleep behavior after long idle periods. | Use Scenario: Battery-operated handheld multimeter with LCD backlight, requiring 5V from two AAA cells (3.0V fresh). IC Role / Device Role / Timing Role: High-efficiency synchronous boost supplying 500 mA peak for backlight pulses while maintaining <10 mV output ripple. Use Value: 450 mA output capability at 5.0V/3.6V supports 100-ms backlight bursts without voltage sag-verified per IEC 61010-1 portable instrument requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Texas Instruments TPS61291DRVR | Fixed 500 kHz PWM only; no auto-bypass; 1.2 µA shutdown current; 0.7V startup | Lacks battery-preserving bypass mode; better suited for constant-load, non-battery-decay scenarios | Select when lowest shutdown IQ is critical and output voltage remains well above declining battery voltage |
| Analog Devices ADP5070ACPZ-R7 | Higher IQ (2.5 mA), dual-output, external compensation required; 2.7V min VIN | Designed for precision dual-rail systems-not optimized for single-cell Li-ion or ultra-low-IQ standby | Prefer for applications needing independent positive/negative rails where efficiency and battery life are secondary to rail accuracy |
Compared with TPS61291DRVR and ADP5070ACPZ-R7, the MCP16411T-I/UN uniquely combines auto-bypass, 5 µA PFM IQ, and 0.8V startup in a single-channel boost-making it the only choice for maximizing runtime in fading-voltage battery systems like Bluetooth headsets and portable medical sensors.
Availability
MCP16411T-I/UN is available at Aetrix Electronics and suitable for personal healthcare devices, single-cell or two-cell powered IoT endpoints, and Bluetooth® headset designs requiring stable component supply with guaranteed long-term manufacturability.
Supply support for MCP16411T-I/UN 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 company specializing in microcontrollers, analog, interface, and power management ICs for embedded control applications.
The MCP1641X product line was engineered specifically for battery-constrained portable electronics-delivering high efficiency across wide input voltage ranges while minimizing no-load current and simplifying design through integrated features like auto-bypass and internal compensation.
FAQ
What is the minimum input voltage required for MCP16411T-I/UN to start switching?
The MCP16411T-I/UN achieves initial startup at 0.8V after power-on, enabled by its low-voltage architecture and internal charge pump. This allows reliable operation from deeply discharged single-cell Li-ion batteries or partially depleted alkaline/NiMH cells-critical for maintaining functionality in long-life portable instruments where battery voltage may fall below 1.0V before replacement.
Does MCP16411T-I/UN support automatic transition between PWM and PFM modes?
Yes, the MCP16411T-I/UN automatically switches between PFM and PWM modes based on load current to optimize efficiency across operating conditions. At light loads, it enters PFM mode with 5 µA quiescent current; under heavier loads, it transitions to fixed-frequency PWM operation. This behavior is inherent to the MCP16411 variant and does not require external configuration-unlike the PWM-only MCP16412/4/6/8 variants.
How is the undervoltage lockout (UVLO) threshold set on MCP16411T-I/UN?
The UVLO threshold on MCP16411T-I/UN is set using an external resistor connected between the UVLO pin and GND. The threshold voltage follows the formula VUVLO = 1.22V × (1 + RUVLO/100 kΩ), allowing precise customization-for example, a 133 kΩ resistor sets a 2.80V cutoff for Li-ion battery end-of-life detection. This resistor-based programming ensures consistent behavior across temperature and unit variance.
What is the purpose of the DIS pin on MCP16411T-I/UN?
The DIS (Discharge) pin on MCP16411T-I/UN controls internal output discharge during shutdown. When EN is low and DIS is high, an internal NMOS FET connects VOUT to GND, rapidly discharging the output capacitor. This ensures clean power-down sequencing for MCUs and sensors that require defined reset timing-particularly valuable in portable health monitors where uncontrolled residual voltage could corrupt sensor calibration data.
Can MCP16411T-I/UN operate without an external inductor?
No, the MCP16411T-I/UN requires an external inductor as part of its synchronous boost topology. It integrates both high- and low-side power MOSFETs but relies on an external inductor (typically 1–4.7 µH) and output capacitor to store and transfer energy. Omitting the inductor prevents regulation and risks damage due to uncontrolled current flow-designs must follow Microchip's recommended layout and component selection guidelines in DS20006444A to ensure stability and efficiency.
MCP16411T-I/UN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 0.82V
- Voltage - Input (Max):
- 5.25V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- 5.25V
- Current - Output:
- 600mA
- Frequency - Switching:
- 500kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
MCP16411T-I/UN FAQ
1.How can I place an order for MCP16411T-I/UN through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP16411T-I/UN 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 MCP16411T-I/UN reliable?
The price and inventory of MCP16411T-I/UN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP16411T-I/UN is usually 5 days.
3.What payment methods are accepted for MCP16411T-I/UN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP16411T-I/UN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP16411T-I/UN?
MCP16411T-I/UN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP16411T-I/UN 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 MCP16411T-I/UN?
For technical support, including MCP16411T-I/UN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP16411T-I/UN requirements.
6.How does Aetrix verify that MCP16411T-I/UN is sourced from the original manufacturer or authorized distributors?
All MCP16411T-I/UN 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 MCP16411T-I/UN meets industry standards.
7.What is the process for return or replacement of MCP16411T-I/UN?
All MCP16411T-I/UN units undergo pre-shipment inspection (PSI). If there is an issue with MCP16411T-I/UN, 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 MCP16411T-I/UN part is unused and in its original packaging.
Return procedure for MCP16411T-I/UN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MCP16411T-I/UN Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
