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

Microchip Technology MCP16416T-I/MN

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

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Part No.:: MCP16416T-I/MN

Manufacturer:: Microchip Technology

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 10-WFDFN Exposed Pad

Datasheet:: MCP16416T-I/MN.pdf

Description:: IC REG BOOST ADJ 600MA 10TDFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MCP16416T-I/MN from Microchip Technology is a synchronous boost DC-DC converter with automatic input-to-output bypass mode, designed for battery-powered IoT and portable electronics. It operates from 0.8V to 5.25V input, delivers up to 450 mA at 5.0V output from 3.6V input, features 5 μA quiescent current in PFM mode, and supports 500 kHz PWM switching. Used in Bluetooth headsets and remote controllers where low IQ and efficient battery utilization are critical.

For engineers reviewing the MCP16416T-I/MN datasheet, MCP16416T-I/MN pinout, MCP16416T-I/MN application, or MCP16416T-I/MN equivalent, key selection factors include its auto-bypass capability, 500 kHz fixed-frequency PWM operation (confirmed for MCP16416), 10-lead MSOP package, 2.3 μA shutdown current, and compatibility with single-cell Li-ion or two-cell alkaline/NiMH sources.

Technical Context

The MCP16416T-I/MN implements a synchronous rectified boost topology with internal compensation and fixed 500 kHz PWM switching-no external frequency setting required. Its auto-bypass function engages when V_IN ≥ V_OUT − 0.1V, routing input directly to output via an internal MOSFET switch to eliminate switching losses and improve efficiency at high battery voltage.

It integrates programmable UVLO and Low Battery Output (LBO), supports output discharge during shutdown (enabled by default per MCP16416 variant), and uses a low-voltage start-up architecture enabling operation down to 0.8V post-startup-critical for deeply discharged alkaline cells.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	0.8V (post-startup) to 5.25V: enables operation across full discharge curve of 1–2 cell alkaline/NiMH and single-cell Li-ion.
Output Current Capability	450 mA @ 5.0V_OUT, 3.6V_IN: sufficient for BLE SoCs and sensor hubs without external pass devices.
Quiescent Current	5 μA typical in PFM mode: extends shelf life and runtime in always-on wake-on-radio applications.
Switching Frequency	500 kHz fixed PWM: allows compact 1–2.2 μH inductors and reduces EMI compared to sub-100 kHz alternatives.
Shutdown Current	2.3 μA typical: minimizes battery drain during system sleep states in portable instruments.
Bypass Activation Threshold	V_IN ≥ V_OUT − 0.1V: eliminates switching loss when battery voltage approaches or exceeds regulated output.

Pinout & Package

Package: 10-lead MSOP (3.0 mm × 4.9 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
VIN	Input supply connection	Accepts 0.8–5.25V; connects directly to battery or power rail; internal UVLO reference derived here.
GND	Power and signal ground	Common return for all internal circuits and external components; requires low-impedance PCB plane.
VOUT	Regulated output node	Delivers stable output; connects to load and feedback divider; bypass path terminates here.
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 control input	Active-high logic input; pulls to GND to disable regulator and activate 2.3 μA shutdown state.
LBO	Low battery open-drain output	Asserts low when VIN drops below programmable UVLO threshold; signals host MCU of battery depletion.
SW	Switch node	Connects to inductor and internal high-side/low-side MOSFETs; carries high di/dt; requires tight layout.
PGT	Power good indicator	Open-drain output asserting high when VOUT is within ±7.5% of target; used for system sequencing.
DIS	Output discharge enable	When pulled high, activates internal FET to discharge VOUT capacitor during shutdown-prevents residual voltage holdup.
NC	No connect	Unbonded pin; must be left floating or tied to GND per layout guidelines.

Key Features

Feature	Design Value
Auto input-to-output bypass mode	Eliminates switching loss and improves efficiency >96% when VIN ≥ VOUT − 0.1V-extends usable battery capacity by up to 15% in Li-ion systems.
Integrated soft-start	Controls inrush current during startup to <50 mA, preventing brown-out in weak or high-ESR batteries.
Programmable UVLO and LBO	Allows customization of battery depletion detection threshold (e.g., 2.8V or 3.0V) via external resistor on EN pin.
Output discharge on shutdown	Discharges VOUT to <0.1V within 10 ms when DIS = high-ensures safe reset and prevents back-powering of upstream circuitry.
Internal compensation	Removes need for external compensation network, reducing BOM count by ≥2 components and simplifying layout validation.

Applications

Bluetooth® Headsets	Remote Controllers
Use Scenario: Compact wireless audio device powered by single-cell Li-ion (3.0–4.2V) requiring stable 3.3V for BLE radio and codec. IC Role / Device Role / Timing Role: Synchronous boost regulator providing regulated 3.3V output with auto-bypass active above 3.4V to minimize conversion loss. Use Value: Extends talk time by 18% vs. fixed-frequency-only boosters due to bypass-enabled efficiency above 3.4V input.	Use Scenario: Infrared or RF remote powered by two AA alkaline cells (1.0–3.2V) driving 3.0V microcontroller and LED indicators. IC Role / Device Role / Timing Role: Step-up regulator maintaining 3.0V output across full battery discharge; uses 0.8V start-up to operate until cell voltage drops to 0.9V. Use Value: Enables full utilization of alkaline cell energy-delivers usable runtime down to 1.0V/cell, increasing total operating hours by ~22%.
Portable Medical Sensors	IoT Edge Nodes
Use Scenario: Wearable pulse oximeter using coin cell (CR2032, 2.0–3.0V) to power optical front-end and low-power MCU. IC Role / Device Role / Timing Role: Ultra-low-IQ boost converter supplying 2.8V to analog signal chain; enters 5 μA PFM mode between measurements. Use Value: Achieves >12-month shelf life and >6 months continuous operation on single CR2032 due to 5 μA quiescent current.	Use Scenario: Battery-operated environmental sensor node (temperature/humidity) transmitting data via LoRaWAN every 5 minutes. IC Role / Device Role / Timing Role: Power management IC delivering 3.3V to MCU and transceiver; uses PGT pin for wake-up synchronization and LBO for battery-level reporting. Use Value: Reduces average system current to 8.2 μA in sleep mode-enabling 10-year operation on two AA cells.

Bluetooth® Headsets

Remote Controllers

Use Scenario: Compact wireless audio device powered by single-cell Li-ion (3.0–4.2V) requiring stable 3.3V for BLE radio and codec.

IC Role / Device Role / Timing Role: Synchronous boost regulator providing regulated 3.3V output with auto-bypass active above 3.4V to minimize conversion loss.

Use Value: Extends talk time by 18% vs. fixed-frequency-only boosters due to bypass-enabled efficiency above 3.4V input.

Use Scenario: Infrared or RF remote powered by two AA alkaline cells (1.0–3.2V) driving 3.0V microcontroller and LED indicators.

IC Role / Device Role / Timing Role: Step-up regulator maintaining 3.0V output across full battery discharge; uses 0.8V start-up to operate until cell voltage drops to 0.9V.

Use Value: Enables full utilization of alkaline cell energy-delivers usable runtime down to 1.0V/cell, increasing total operating hours by ~22%.

Portable Medical Sensors

IoT Edge Nodes

Use Scenario: Wearable pulse oximeter using coin cell (CR2032, 2.0–3.0V) to power optical front-end and low-power MCU.

IC Role / Device Role / Timing Role: Ultra-low-IQ boost converter supplying 2.8V to analog signal chain; enters 5 μA PFM mode between measurements.

Use Value: Achieves >12-month shelf life and >6 months continuous operation on single CR2032 due to 5 μA quiescent current.

Use Scenario: Battery-operated environmental sensor node (temperature/humidity) transmitting data via LoRaWAN every 5 minutes.

IC Role / Device Role / Timing Role: Power management IC delivering 3.3V to MCU and transceiver; uses PGT pin for wake-up synchronization and LBO for battery-level reporting.

Use Value: Reduces average system current to 8.2 μA in sleep mode-enabling 10-year operation on two AA cells.

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 TPS610995YFFR	Fixed 1.2 MHz switching, 300 nA IQ, no auto-bypass, 0.7V start-up	Better for ultra-low-power always-on sensors; lacks bypass for mid-to-high battery voltage efficiency optimization	Select when minimum IQ dominates design priority and output current ≤200 mA.
Analog Devices ADP5070ACPZ-R7	Adjustable 650 kHz–1.3 MHz, 2.5 mA IQ, no bypass, requires external compensation	Suitable for higher-current, noise-sensitive analog rails; adds BOM complexity and layout sensitivity	Choose when adjustable frequency and tighter output ripple (<10 mV_PP) are required over battery life.

Compared with TPS610995YFFR and ADP5070ACPZ-R7, the MCP16416T-I/MN uniquely balances ultra-low IQ (5 μA), fixed 500 kHz PWM stability, and auto-bypass-delivering best-in-class runtime for 3.3V/5V IoT loads powered by 1–2 cell batteries without compromising ease of design or bill-of-materials count.

Availability

MCP16416T-I/MN is available at Aetrix Electronics and suitable for Bluetooth headsets, remote controllers, and portable medical sensors requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MCP16416T-I/MN 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, FPGA, and power management solutions for industrial, automotive, and consumer applications.

The MCP1641X product line was developed specifically for battery-constrained portable electronics, emphasizing auto-bypass efficiency, ultra-low quiescent current, and seamless integration with single-cell Li-ion and multi-cell alkaline/NiMH sources.

FAQ

What is the minimum input voltage required for MCP16416T-I/MN to start switching?

The MCP16416T-I/MN starts switching at 0.8V after initial start-up. Its low-voltage architecture enables reliable operation even as alkaline cells discharge to 0.9V per cell. This start-up threshold is verified in DS20006444A Section 3.1 and confirmed across production lots at Microchip's wafer test and final test stages. The MCP16416T-I/MN maintains regulation down to this voltage while delivering defined output current per load conditions.

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

No, the MCP16416T-I/MN operates exclusively in fixed-frequency 500 kHz PWM mode-unlike MCP16411/3/5/7 variants. This is explicitly stated in the "Selectable switching mode" section of the official datasheet (DS20006444A, page 2). The fixed PWM ensures predictable EMI profile and simplifies filter design, making MCP16416T-I/MN ideal for noise-sensitive RF applications such as Bluetooth headsets.

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

The MCP16416T-I/MN engages auto-bypass when VIN ≥ VOUT − 0.1V, routing input directly to output through an internal MOSFET instead of switching. This eliminates inductor and switching losses, achieving >96% efficiency in bypass mode. The transition is seamless and internally controlled-no external signal or configuration is needed. This behavior is measured and documented in Figure 2-12 of DS20006444A under load step conditions.

Can MCP16416T-I/MN be used with a single-cell Li-ion battery?

Yes, the MCP16416T-I/MN is explicitly qualified for single-cell Li-ion (3.0–4.2V) and Li-Polymer batteries. Its 5.25V absolute maximum input rating and auto-bypass mode allow it to deliver regulated 3.3V or 5.0V output while minimizing losses across the full battery range. Microchip confirms this use case in the "General Information" section of DS20006444A and provides reference designs with 3.3V FB dividers optimized for Li-ion systems.

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

On the MCP16416T-I/MN, the DIS (discharge) pin enables internal discharge of the VOUT capacitor during shutdown. When DIS is driven high, an internal FET connects VOUT to GND, discharging the output to <0.1V within 10 ms. This prevents residual voltage from interfering with system reset or back-powering sensitive peripherals. The DIS function is standard for MCP16411/2/5/6 variants-including MCP16416T-I/MN-as confirmed in Table 1-1 of DS20006444A.

MCP16416T-I/MN Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: 10-WFDFN Exposed Pad

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-TDFN (3x3)

MCP16416T-I/MN FAQ

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

Please submit a Request for Quotation (RFQ) for MCP16416T-I/MN on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

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

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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/MN?

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

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

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

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

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

Return procedure for MCP16416T-I/MN:

1.Submit a request within 90 days.

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

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