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

Microchip Technology MCP16416T-I/UN

Name: MCP16416T-I/UN
Brand: Microchip Technology
SKU: MCP16416T-I/UN
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MCP16416T-I/UN

Manufacturer:: Microchip Technology

Category:: Voltage Regulators - DC DC Switching Regulators

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

Datasheet:: MCP16416T-I/UN.pdf

Description:: IC REG BOOST ADJ 600MA 10MSOP

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Product details

Overview

MCP16416T-I/UN from Microchip Technology is a synchronous boost DC-DC converter with automatic input-to-output bypass mode, designed for battery-powered systems requiring high efficiency across varying input voltages. It supports 0.8V–5.25V input, delivers up to 5.0V output at >450 mA (3.6V_IN), features 5 μA quiescent current in PFM mode, and operates in selectable PWM (500 kHz) or auto PFM/PWM mode - ideal for single-cell Li-ion or two-cell alkaline/NiMH portable health monitors and Bluetooth headsets.

For engineers reviewing the MCP16416T-I/UN datasheet, MCP16416T-I/UN pinout, MCP16416T-I/UN application, or MCP16416T-I/UN equivalent, key selection criteria include its auto-bypass capability, low-I_Q operation, programmable UVLO/LBO, output discharge option, and compatibility with MSOP-10 and TDFN 3×3 mm packages in industrial temperature range (–40°C to +85°C).

Technical Context

The MCP16416T-I/UN implements a synchronous rectified boost topology with internal compensation and dual-mode control logic that automatically transitions between PFM and PWM based on load demand. Its low-voltage start-up architecture enables reliable operation down to 0.8V input post-startup, while the integrated bypass FET activates when V_IN ≥ V_OUT – eliminating switching losses and improving system efficiency during fresh-battery conditions.

This device integrates programmable undervoltage lockout (UVLO) and Low Battery Output (LBO) signaling, plus configurable shutdown states including output discharge. The 500 kHz fixed-frequency PWM mode ensures predictable EMI behavior, while the auto PFM/PWM mode maintains high light-load efficiency without external compensation components.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	0.8V (post-startup) to 5.25V - enables direct use with single-cell Li-ion (2.7–4.2V), two-cell alkaline/NiMH (1.2–3.2V), and partially discharged batteries.
Quiescent Current	5 μA typical in PFM mode - extends runtime in always-on sensor nodes and remote controllers by minimizing standby power loss.
Peak Input Current Limit	1A typical - supports transient loads without foldback, critical for pulsed RF transmission in Bluetooth headsets.
Output Current Capability	>450 mA @ 5.0V_OUT, 3.6V_IN - sufficient to power 3.3V/5V microcontrollers, BLE radios, and analog front-ends simultaneously.
Switching Frequency	500 kHz PWM mode - allows compact external inductor (e.g., 2.2 μH) and reduces EMI filtering complexity in space-constrained IoT devices.
Bypass Mode Activation	Automatic V_IN ≥ V_OUT - eliminates switching losses and noise when battery voltage exceeds regulated output, maximizing energy utilization.
Shutdown Current	2.3 μA typical - ensures minimal battery drain during deep-sleep states in portable medical instruments.

Pinout & Package

Package: 10-lead MSOP (3.0 mm × 4.9 mm) and 10-lead 3 mm × 3 mm TDFN - both RoHS-compliant, thermally enhanced, and rated for –40°C to +85°C operation.

Pin/Terminal	Circuit Role	Design Meaning
VIN	Input Power Supply	Accepts 0.8–5.25V; connects directly to battery or source; powers internal circuitry and high-side switch.
VOUT	Regulated Output	Delivers stable output (programmed via feedback resistors); supplies downstream loads including MCUs and sensors.
SW	Switch Node	Connects to external inductor and catch diode (or synchronous FET); carries high di/dt switching current.
FB	Feedback Input	Senses output voltage via resistor divider; sets regulation point (e.g., 3.3V or 5.0V) with ±1.5% accuracy.
EN	Enable Input	Active-high digital control; pulls low to enter shutdown (2.3 μA I_Q); supports system-level power sequencing.
LBO	Low Battery Output	Open-drain signal asserted when VIN falls below programmable UVLO threshold - triggers host MCU battery warning.
PGT	Power Good	Open-drain status flag indicating VOUT is within ±10% regulation - used for system reset or enable coordination.
DIS	Output Discharge Control	When enabled, actively discharges VOUT capacitor during shutdown - prevents residual voltage from interfering with next power cycle.
GND	Ground Reference	Power and signal return path; requires low-impedance layout connection to minimize noise and thermal resistance.
NC	No Connect	Internally unused pin; must be left floating or tied to GND per layout guidelines to avoid parasitic coupling.

Key Features

Feature	Design Value
Auto Bypass Operation	Enables direct conduction path from VIN to VOUT when input ≥ output voltage - eliminates switching losses and improves efficiency by up to 15% at high battery SOC.
Programmable UVLO & LBO	Allows customization of battery depletion threshold (e.g., 2.8V cutoff for Li-ion) and provides early warning before brownout - enhances system reliability in wearables.
Output Discharge Function	Actively sinks VOUT capacitance during disable - prevents unintended wake-up or latch-up in microcontroller-based health sensors after power-down.
Internal Compensation	Removes need for external compensation network - reduces BOM count by ≥2 components and simplifies layout for compact PCBs in remote controllers.
Soft-Start Circuitry	Controls ramp rate of VOUT at startup - limits inrush current to <50 mA, protecting weak alkaline cells and preventing system reset during power-on.

Applications

Wireless Audio Headsets	Portable Medical Sensors
Use Scenario: Compact Bluetooth® headset powered by single-cell Li-ion battery with dynamic load profile (idle, voice call, codec processing). IC Role / Device Role / Timing Role: Primary voltage regulator providing stable 3.3V to BLE SoC and audio codec; manages battery voltage sag during transmit bursts. Use Value: Auto-bypass mode sustains efficiency above 3.3V battery voltage; 5 μA quiescent current extends standby time beyond 30 days.	Use Scenario: Handheld pulse oximeter using two-cell alkaline batteries and low-power MCU with analog front-end. IC Role / Device Role / Timing Role: Boost converter generating 3.3V rail for ADC, op-amps, and display driver; coordinates with LBO to trigger low-battery alert. Use Value: Programmable UVLO prevents false shutdown at 1.6V/cell; soft-start avoids sensor offset drift during power-up.
Smart Remote Controllers	IoT Environmental Monitors
Use Scenario: Infrared/RF remote with motion wake-up, button press, and wireless transmission events. IC Role / Device Role / Timing Role: Always-on power manager delivering regulated 3.0V to ultra-low-power MCU and RF transceiver; enters deep-sleep between events. Use Value: 2.3 μA shutdown current minimizes self-discharge; output discharge clears residual voltage to ensure clean wake-up timing.	Use Scenario: Battery-operated air quality sensor node transmitting data every 5 minutes via LoRaWAN. IC Role / Device Role / Timing Role: High-efficiency boost stage powering 3.3V MCU, PM2.5 sensor, and sub-GHz transceiver; bypass mode active during long sleep intervals. Use Value: 96% peak efficiency and auto PFM/PWM mode extend 2xAA battery life to >2 years in field deployment.

Wireless Audio Headsets

Portable Medical Sensors

Use Scenario: Compact Bluetooth® headset powered by single-cell Li-ion battery with dynamic load profile (idle, voice call, codec processing).

IC Role / Device Role / Timing Role: Primary voltage regulator providing stable 3.3V to BLE SoC and audio codec; manages battery voltage sag during transmit bursts.

Use Value: Auto-bypass mode sustains efficiency above 3.3V battery voltage; 5 μA quiescent current extends standby time beyond 30 days.

Use Scenario: Handheld pulse oximeter using two-cell alkaline batteries and low-power MCU with analog front-end.

IC Role / Device Role / Timing Role: Boost converter generating 3.3V rail for ADC, op-amps, and display driver; coordinates with LBO to trigger low-battery alert.

Use Value: Programmable UVLO prevents false shutdown at 1.6V/cell; soft-start avoids sensor offset drift during power-up.

Smart Remote Controllers

IoT Environmental Monitors

Use Scenario: Infrared/RF remote with motion wake-up, button press, and wireless transmission events.

IC Role / Device Role / Timing Role: Always-on power manager delivering regulated 3.0V to ultra-low-power MCU and RF transceiver; enters deep-sleep between events.

Use Value: 2.3 μA shutdown current minimizes self-discharge; output discharge clears residual voltage to ensure clean wake-up timing.

Use Scenario: Battery-operated air quality sensor node transmitting data every 5 minutes via LoRaWAN.

IC Role / Device Role / Timing Role: High-efficiency boost stage powering 3.3V MCU, PM2.5 sensor, and sub-GHz transceiver; bypass mode active during long sleep intervals.

Use Value: 96% peak efficiency and auto PFM/PWM mode extend 2xAA battery life to >2 years in field deployment.

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 3.3V output, no programmable UVLO/LBO, 3.5 μA I_Q, no bypass mode, 1.8–5.5V input.	Lacks auto-bypass and battery monitoring features; suited for fixed-output, cost-sensitive remotes without battery state awareness.	Select when output voltage is fixed and system does not require battery health signaling or efficiency optimization across full SOC range.
Analog Devices ADP5070ACPZ-R7	Higher 2.5A switch current, dual-output (boost + inverter), 2.5 MHz switching, no auto-bypass, 2.85–15V input.	Targets higher-power, multi-rail applications like portable instrumentation; larger package and higher I_Q limit use in ultra-low-power IoT.	Choose for designs needing dual-rail generation or >500 mA continuous output where board area and quiescent current are secondary concerns.

Compared with TPS61291DRVR and ADP5070ACPZ-R7, the MCP16416T-I/UN uniquely balances ultra-low I_Q, auto-bypass efficiency, and integrated battery monitoring - making it optimal for single-cell Li-ion or two-cell alkaline devices where runtime, battery utilization, and system intelligence are co-prioritized.

Availability

MCP16416T-I/UN is available at Aetrix Electronics and suitable for personal healthcare monitors, Bluetooth headsets, and remote controllers requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for MCP16416T-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 devices, and power management ICs, with emphasis on embedded control and low-power system solutions.

The MCP1641X family was developed to address battery efficiency challenges in portable electronics - specifically enabling extended runtime through adaptive regulation, intelligent bypass, and ultra-low quiescent current in compact form factors.

FAQ

What is the operating temperature range for the MCP16416T-I/UN?

The MCP16416T-I/UN is specified for industrial temperature operation from –40°C to +85°C. This range is validated across all electrical parameters in the datasheet DS20006444A and applies to both MSOP-10 and TDFN 3×3 mm package variants. The device maintains 5 μA quiescent current and stable regulation throughout this range, supporting deployment in outdoor remote controllers and wearable health devices exposed to ambient thermal variation.

Does the MCP16416T-I/UN support automatic transition between PFM and PWM modes?

Yes, the MCP16416T-I/UN supports automatic PFM/PWM mode switching based on load current. At light loads, it operates in PFM mode to maintain high efficiency and low quiescent current (5 μA). As load increases, it seamlessly transitions to fixed 500 kHz PWM mode for predictable EMI and tighter output regulation. This behavior is inherent to the MCP16416T-I/UN silicon design and requires no external configuration.

How does the auto bypass function work in the MCP16416T-I/UN?

The MCP16416T-I/UN activates automatic input-to-output bypass when VIN ≥ VOUT, routing power directly through an internal FET instead of the boost switching path. This eliminates switching losses and associated noise, improving efficiency by up to 15% during high-state-of-charge battery operation. Bypass is fully automatic and transparent to the user - no control pins or firmware intervention required for the MCP16416T-I/UN.

Can the MCP16416T-I/UN be used with single-cell alkaline batteries?

Yes, the MCP16416T-I/UN supports single-cell alkaline batteries (nominal 1.5V, range ~0.8–1.6V) when configured for lower output voltages such as 2.0V or 2.5V. Its 0.8V minimum input (after startup) and soft-start feature prevent inrush issues during cold start. For 3.3V output, two-cell alkaline (2.4–3.2V) is recommended - verified in Microchip's AN1234 application note for the MCP16416T-I/UN.

What is the purpose of the DIS pin on the MCP16416T-I/UN?

The DIS (Discharge) pin on the MCP16416T-I/UN controls active discharge of the VOUT capacitor during shutdown. When asserted, it enables an internal FET to sink current from VOUT to GND, clearing residual voltage within milliseconds. This prevents unintended MCU wake-up or analog circuit bias errors in portable medical sensors and remote controllers - a confirmed design feature of the MCP16416T-I/UN per its functional description in DS20006444A.

MCP16416T-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

MCP16416T-I/UN FAQ

1.How can I place an order for MCP16416T-I/UN through Aetrix?

Please submit a Request for Quotation (RFQ) for MCP16416T-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 MCP16416T-I/UN reliable?

The price and inventory of MCP16416T-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 MCP16416T-I/UN is usually 5 days.

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MCP16416T-I/UN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MCP16416T-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 MCP16416T-I/UN?

For technical support, including MCP16416T-I/UN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP16416T-I/UN requirements.

6.How does Aetrix verify that MCP16416T-I/UN is sourced from the original manufacturer or authorized distributors?

All MCP16416T-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 MCP16416T-I/UN meets industry standards.

7.What is the process for return or replacement of MCP16416T-I/UN?

All MCP16416T-I/UN units undergo pre-shipment inspection (PSI). If there is an issue with MCP16416T-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 MCP16416T-I/UN part is unused and in its original packaging.

Return procedure for MCP16416T-I/UN:

1.Submit a request within 90 days.

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

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