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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Microchip Technology MCP16414T-I/UN

Name: MCP16414T-I/UN
Brand: Microchip Technology
SKU: MCP16414T-I/UN
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MCP16414T-I/UN

Manufacturer:: Microchip Technology

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Datasheet:: MCP16414T-I/UN.pdf

Description:: IC REG BOOST ADJ 600MA 10MSOP

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Product details

Overview

MCP16414T-I/UN from Microchip Technology is a 500 kHz fixed-frequency, synchronous step-up DC-DC converter with automatic input-to-output bypass mode, programmable UVLO (0.83–0.87 V start), and integrated PGT (Power Good + Die Overtemperature) output. It delivers up to 600 mA in bypass mode and supports 1.8–5.25 V adjustable output from 0.82–5.25 V input, optimized for single-cell Li-ion or two-cell alkaline/NiMH battery systems in portable health monitors and Bluetooth headsets.

For engineers reviewing the MCP16414T-I/UN datasheet, MCP16414T-I/UN pinout, MCP16414T-I/UN application, or MCP16414T-I/UN equivalent, key selection criteria include its PWM-only operation (no PFM), input-to-output bypass shutdown option, 0.97 V feedback reference, 2.3 µA shutdown current, and thermal shutdown at 140°C - all critical for low-noise, battery-life-sensitive designs.

Technical Context

The MCP16414T-I/UN implements a fixed 500 kHz PWM switching architecture with internal N- and P-channel MOSFETs (R_DS(ON) = 0.4 Ω / 0.5 Ω), enabling stable regulation without frequency variation under light loads. Its automatic bypass mode activates when VIN ≥ VOUT, routing input directly to output via the integrated PMOS switch while disabling switching to minimize quiescent loss.

It features dual monitoring functions on the PGT pin: Power Good (90% VOUT threshold, 5% hysteresis) and die overtemperature detection (75°C typical trip). The device uses separate PGND and SGND pins for noise isolation and includes internal compensation, soft-start, and anti-ringing control to reduce EMI in compact PCB layouts.

Key Specifications

Parameter	Value and Actual Design Meaning
Switching Mode	PWM only at 425–575 kHz - ensures constant frequency for EMI filtering and avoids audible noise in audio-sensitive applications.
Feedback Voltage	0.95–0.985 V - sets precise output voltage via external resistor divider; enables 1.8–5.25 V adjustment range.
UVLO Start Threshold	0.83–0.87 V (typ. 0.85 V) - prevents deep discharge of alkaline batteries; configurable via resistive divider on UVLO pin.
Shutdown Current	2.3 µA (typ.) - minimizes battery drain during system sleep; enabled by logic-low EN signal.
Bypass Output Current	600 mA max - sustains regulated output without switching when VIN ≥ VOUT, improving efficiency in narrow-step-up scenarios.
Thermal Shutdown	140°C (typ.) with 10°C hysteresis - protects against sustained overload or poor heatsinking in sealed enclosures.
Operating Junction Temp	–40°C to +125°C - supports industrial-grade reliability in wearable and medical devices exposed to ambient temperature extremes.

Pinout & Package

Package: 10-Lead MSOP (3.0 mm × 4.9 mm, 0.5 mm pitch) with exposed thermal pad (EP) connected to PGND/SGND per layout guidelines.

Pin/Terminal	Circuit Role	Design Meaning
1 – UVLO	Undervoltage lockout input	Accepts resistive divider to set startup threshold; internal 485 mV reference enables battery monitoring down to 0.85 V.
2 – LBO	Open-drain low-battery indicator	Asserts low when VIN drops below programmed UVLOSTART; requires external pull-up for system-level alert signaling.
3 – PGT	Open-drain Power Good + Overtemperature output	Signals fault if VOUT falls >10% or die temp exceeds 75°C - single-pin dual-function monitoring for space-constrained designs.
4 – VFB	Feedback voltage input	Compares against 0.97 V internal reference to regulate VOUT; high-impedance (1 nA bias) enables precision divider design.
5 – VOUT	Regulated output node	Connects to output capacitor and load; carries full output current; integrates synchronous PMOS switch source terminal.
6 – SW	Switch node	Drives boost inductor; handles peak currents up to 1 A; connects internal NMOS drain and PMOS source - requires low-inductance layout.
7 – PGND	Power ground return	High-current return path for NMOS switch; must be tied to SGND externally to avoid ground bounce in sensitive analog sections.
8 – SGND	Signal ground reference	Return for error amplifier and reference circuitry; separation from PGND reduces noise coupling into feedback loop.
9 – VIN	Main input supply	Accepts 0.82–5.25 V; requires ≥10 µF local ceramic decoupling; powers internal bias circuits and gate drivers.
10 – EN	Enable control input	Schmitt-trigger input; active-high (>82% VIN); pulls low to enter 2.3 µA shutdown with input-to-output bypass mode enabled.

Key Features

Feature	Design Value
Automatic Input-to-Output Bypass	Enables direct VIN-to-VOUT conduction when input exceeds output, eliminating switching losses and ripple during high-battery conditions - extends usable battery life by ~15% in two-cell alkaline systems.
Integrated Synchronous Rectifier	Eliminates external Schottky diode; reduces conduction loss and board area; supports >96% peak efficiency at medium loads (e.g., 3.3 V/200 mA @ 1.5 V IN).
Programmable Low-Battery Detection	LBO pin asserts when VIN drops below UVLOSTART - allows host MCU to initiate graceful shutdown before battery leakage or brownout occurs.
Internal Compensation	Removes need for external compensation network; simplifies design validation and reduces BOM count by one capacitor and two resistors.
Low-Noise Anti-Ringing Control	Suppresses voltage spikes at SW node during turn-off; reduces EMI emissions by >10 dBµV in 30–100 MHz band - critical for FCC/CE compliance in Bluetooth headsets.

Applications

Wearable Health Monitors	Bluetooth Headsets
Use Scenario: Continuous glucose monitor powered by single-cell Li-Po battery with 2.7–4.2 V range and strict 5 µA sleep current budget. IC Role / Device Role / Timing Role: Step-up regulator maintaining stable 3.3 V rail for sensor ADC and BLE radio during battery discharge curve; enters bypass mode above 3.3 V to eliminate switching noise. Use Value: 2.3 µA shutdown current and 5 µA quiescent current in PFM-free operation extend battery runtime beyond 7 days between charges.	Use Scenario: Compact earbud with dual-microphone array requiring ultra-low EMI power delivery near RF section. IC Role / Device Role / Timing Role: Fixed-frequency 500 kHz boost converter supplying clean 3.3 V to audio codec and BLE SoC; anti-ringing control minimizes conducted noise on shared VOUT rail. Use Value: PWM-only operation avoids variable-frequency PFM noise that interferes with 2.4 GHz RF reception; bypass mode eliminates switching entirely above 3.3 V.
Remote Industrial Sensors	Portable Medical Data Loggers
Use Scenario: LoRaWAN node powered by two AA alkaline cells operating across -20°C to +60°C ambient. IC Role / Device Role / Timing Role: Regulator delivering 3.0 V to microcontroller and transceiver; UVLO set to 2.4 V to prevent battery leakage; thermal shutdown protects against enclosure overheating. Use Value: Programmable UVLOSTOP (0.8 V) and 75°C die overtemperature flag enable predictive battery replacement and field-failure diagnostics.	Use Scenario: FDA-class II ECG recorder using single-cell Li-ion with mandatory thermal safety monitoring. IC Role / Device Role / Timing Role: Power management IC providing regulated 5.0 V output and real-time die temperature reporting via PGT pin to host processor. Use Value: Integrated PGT output replaces discrete thermal sensor + comparator, reducing component count and qualification effort for medical regulatory submissions.

Wearable Health Monitors

Bluetooth Headsets

Use Scenario: Continuous glucose monitor powered by single-cell Li-Po battery with 2.7–4.2 V range and strict 5 µA sleep current budget.

IC Role / Device Role / Timing Role: Step-up regulator maintaining stable 3.3 V rail for sensor ADC and BLE radio during battery discharge curve; enters bypass mode above 3.3 V to eliminate switching noise.

Use Value: 2.3 µA shutdown current and 5 µA quiescent current in PFM-free operation extend battery runtime beyond 7 days between charges.

Use Scenario: Compact earbud with dual-microphone array requiring ultra-low EMI power delivery near RF section.

IC Role / Device Role / Timing Role: Fixed-frequency 500 kHz boost converter supplying clean 3.3 V to audio codec and BLE SoC; anti-ringing control minimizes conducted noise on shared VOUT rail.

Use Value: PWM-only operation avoids variable-frequency PFM noise that interferes with 2.4 GHz RF reception; bypass mode eliminates switching entirely above 3.3 V.

Remote Industrial Sensors

Portable Medical Data Loggers

Use Scenario: LoRaWAN node powered by two AA alkaline cells operating across -20°C to +60°C ambient.

IC Role / Device Role / Timing Role: Regulator delivering 3.0 V to microcontroller and transceiver; UVLO set to 2.4 V to prevent battery leakage; thermal shutdown protects against enclosure overheating.

Use Value: Programmable UVLOSTOP (0.8 V) and 75°C die overtemperature flag enable predictive battery replacement and field-failure diagnostics.

Use Scenario: FDA-class II ECG recorder using single-cell Li-ion with mandatory thermal safety monitoring.

IC Role / Device Role / Timing Role: Power management IC providing regulated 5.0 V output and real-time die temperature reporting via PGT pin to host processor.

Use Value: Integrated PGT output replaces discrete thermal sensor + comparator, reducing component count and qualification effort for medical regulatory submissions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar step-up converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP16412T-I/UN	PWM-only like MCP16414T-I/UN but uses output discharge shutdown instead of input-to-output bypass.	Suitable where rapid VOUT discharge is required after shutdown (e.g., to reset downstream logic), not for energy retention in bypass mode.	Select MCP16412T-I/UN if system requires active VOUT discharge; choose MCP16414T-I/UN when preserving residual battery energy during standby is critical.
TPS61291DRVR	Lower IQ (300 nA shutdown), but no bypass mode, no PGT output, and no programmable UVLO - uses fixed 0.8 V UVLO.	Better for ultra-low-power always-on sensors; unsuitable for thermal-safety-critical or battery-leakage-sensitive applications.	Choose TPS61291DRVR only for sub-µA sleep budgets where bypass and thermal monitoring are unnecessary; MCP16414T-I/UN remains superior for medical/wearable safety compliance.

Compared with MCP16412T-I/UN and TPS61291DRVR, the MCP16414T-I/UN uniquely combines PWM-only stability, input-to-output bypass for battery longevity, and dual-function PGT monitoring - making it the only option meeting simultaneous requirements for EMI control, thermal safety, and alkaline battery protection in Class II medical wearables.

Availability

MCP16414T-I/UN is available at Aetrix Electronics and suitable for wearable health monitors, Bluetooth audio accessories, remote industrial sensors, and portable medical data loggers requiring stable component supply across extended production lifecycles.

Supply support for MCP16414T-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 manufacturer specializing in microcontrollers, analog, interface, and power management ICs for industrial, automotive, and consumer applications.

The MCP1641X product line was designed specifically for ultra-low-power, battery-operated portable electronics requiring high efficiency across wide input ranges, integrated battery monitoring, and robust thermal safety - targeting medical, hearing aid, and IoT edge nodes.

FAQ

What is the switching frequency of the MCP16414T-I/UN and is it adjustable?

The MCP16414T-I/UN operates exclusively in PWM mode at a nominal 500 kHz, with tolerance of ±75 kHz (425–575 kHz). This frequency is fixed by internal oscillator design and is not user-adjustable. Unlike PFM/PWM variants in the MCP1641X family, the MCP16414T-I/UN does not support frequency modulation or external synchronization - ensuring predictable EMI behavior for certified wireless devices.

Does the MCP16414T-I/UN support automatic input-to-output bypass mode, and how does it activate?

Yes, the MCP16414T-I/UN supports automatic input-to-output bypass mode. It activates when VIN ≥ VOUT, routing input directly to output through the internal PMOS switch while disabling switching activity. This mode reduces quiescent current to <1 µA and eliminates switching noise - confirmed in DS20006394D-page 3, Note 1 and Figure 2-44. Bypass operation sustains up to 600 mA output current with R_DS(ON)P = 0.5 Ω.

What functions are implemented on the PGT pin of the MCP16414T-I/UN?

The PGT pin of the MCP16414T-I/UN implements both Power Good and Die Overtemperature monitoring. It asserts low when VOUT drops below 90% of nominal value (5% hysteresis) or when die temperature exceeds 75°C (typical). This dual-function capability is exclusive to MCP16411/2/3/4 variants - confirmed in Table 3-1 and Section 4.3 of DS20006394D. The MCP16414T-I/UN uses PGT, not PG.

What is the minimum input voltage required for the MCP16414T-I/UN to start switching?

The MCP16414T-I/UN has a typical start-up input voltage of 0.85 V (range 0.83–0.87 V) when UVLO is connected directly to VIN. If an external resistive divider is used on the UVLO pin, the start threshold becomes programmable. The device stops switching at UVLOSTOP = 0.8 V (typ.), preventing deep discharge of alkaline batteries - verified in Electrical Characteristics table, DS20006394D-page 3.

How does the shutdown behavior of the MCP16414T-I/UN differ from other MCP1641X variants?

The MCP16414T-I/UN implements input-to-output bypass during shutdown (EN = GND), maintaining VOUT ≈ VIN – I_OUT × R_DS(ON)P rather than discharging VOUT. This differs from MCP16411/2/5/6 variants, which use output discharge shutdown. The bypass shutdown mode preserves energy in the output capacitor and extends battery life during intermittent operation - specified in Table 3-1 and Section 5.1 of DS20006394D.

MCP16414T-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

MCP16414T-I/UN FAQ

1.How can I place an order for MCP16414T-I/UN through Aetrix?

Please submit a Request for Quotation (RFQ) for MCP16414T-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 MCP16414T-I/UN reliable?

The price and inventory of MCP16414T-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 MCP16414T-I/UN is usually 5 days.

3.What payment methods are accepted for MCP16414T-I/UN?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP16414T-I/UN transactions.

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MCP16414T-I/UN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MCP16414T-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 MCP16414T-I/UN?

For technical support, including MCP16414T-I/UN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP16414T-I/UN requirements.

6.How does Aetrix verify that MCP16414T-I/UN is sourced from the original manufacturer or authorized distributors?

All MCP16414T-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 MCP16414T-I/UN meets industry standards.

7.What is the process for return or replacement of MCP16414T-I/UN?

All MCP16414T-I/UN units undergo pre-shipment inspection (PSI). If there is an issue with MCP16414T-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 MCP16414T-I/UN part is unused and in its original packaging.

Return procedure for MCP16414T-I/UN:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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