Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Microchip Technology MCP16416-I/UN

Name: MCP16416-I/UN
Brand: Microchip Technology
SKU: MCP16416-I/UN
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: MCP16416-I/UN

Manufacturer:: Microchip Technology

Category:: Voltage Regulators - DC DC Switching Regulators

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

Datasheet:: MCP16416-I/UN.pdf

Description:: IC REG BOOST ADJ 600MA 10MSOP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:414

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

MCP16416-I/UN from Microchip Technology is a low-voltage, synchronous step-up DC-DC converter with PWM-only operation, programmable UVLO, low-battery output (LBO), and automatic input-to-output bypass mode. It operates from 0.82V to 5.25V input, delivers up to 600 mA in bypass mode, supports adjustable 1.8V–5.25V output, and achieves 96% peak efficiency - optimized for single-cell Li-ion or two-cell alkaline/NiMH battery-powered IoT sensors and Bluetooth headsets.

For engineers reviewing the MCP16416-I/UN datasheet, MCP16416-I/UN pinout, MCP16416-I/UN application, or MCP16416-I/UN equivalent, key selection criteria include its fixed 500 kHz switching frequency, 2.3 µA shutdown current, 0.97V feedback reference, output discharge shutdown behavior, and compatibility with 10-lead MSOP or 3×3 mm TDFN packages.

Technical Context

The MCP16416-I/UN implements a fixed-frequency PWM-only control architecture with no PFM mode, ensuring consistent EMI profile and predictable transient response across load ranges. Its internal synchronous rectifier combines an N-channel switch (R_DS(ON) = 0.4 Ω) and P-channel switch (R_DS(ON) = 0.5 Ω), enabling efficient boost and seamless transition into automatic bypass when V_IN ≥ V_OUT.

It integrates programmable undervoltage lockout (UVLOSTART = 0.85V default, adjustable via resistive divider), open-drain LBO for battery depletion warning, and a dedicated Power Good (PG) output - distinct from PGT variants - that asserts low when V_OUT drops >10% below regulation. Thermal shutdown activates at 140°C with 10°C hysteresis.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	0.82V–5.25V: Enables direct operation from depleted alkaline cells (down to ~0.8V) and compatibility with Li-ion, NiMH, and coin-cell sources.
Switching Frequency	500 kHz ±75 kHz: Fixed PWM operation ensures stable EMI filtering design and eliminates frequency modulation artifacts in noise-sensitive audio/sensor systems.
Feedback Reference Voltage	0.97V ±0.015V: Sets precise output voltage via external resistor divider; enables accurate 1.8V–5.25V adjustment with minimal drift over temperature.
Quiescent Current (PFM/PWM)	5.0 µA typical: Ultra-low IQ extends battery life in always-on, low-duty-cycle applications like wireless sensor nodes.
Shutdown Current	2.3 µA typical: Minimizes standby drain during system sleep, critical for multi-year battery operation in remote monitoring devices.
Max Output Current (Bypass)	600 mA: Supports high-current pass-through when input exceeds output, reducing conduction loss and heat generation in near-regulation conditions.
UVLO Stop Threshold	0.80V typical: Prevents deep discharge of alkaline batteries, mitigating leakage risk and extending usable cell capacity.

Pinout & Package

Package: 10-Lead MSOP (3.0 mm × 4.9 mm) and 10-Lead 3 mm × 3 mm TDFN with exposed thermal pad (EP). Both packages support identical pin mapping and thermal performance (θ_JA = 71°C/W for MSOP, 54°C/W for TDFN).

Pin/Terminal	Circuit Role	Design Meaning
1 – UVLO	Undervoltage Lockout Input	Accepts resistive divider to set custom start-up threshold (default 0.85V); also serves as LBO comparator input using internal 485 mV reference.
2 – LBO	Open-Drain Low Battery Output	Asserts low when VIN falls below programmed UVLOSTART; requires external pull-up for host microcontroller wake-up or UI alert.
3 – PG	Power Good Output	Open-drain signal indicating regulated VOUT (±10%); used for system power sequencing and fault detection - no die overtemperature function (unlike PGT variants).
4 – VFB	Feedback Input	Connects to resistor divider midpoint; senses 0.97V reference to regulate VOUT; bias current <1 nA minimizes divider error.
5 – VOUT	Regulated Output	Delivers boosted or bypassed voltage; connects to output capacitor and load; internal P-MOSFET source tied here.
6 – SW	Switch Node	High-current node connecting inductor to internal N-MOSFET drain and P-MOSFET source; handles up to 1A peak current.
7 – PGND	Power Ground	Return path for high-current N-MOSFET; must be connected to SGND externally to minimize ground bounce and improve regulation accuracy.
8 – SGND	Signal Ground	Reference for error amplifier and internal reference; separate from PGND to isolate noise-sensitive analog circuitry.
9 – VIN	Input Supply	Primary power input; requires ≥10 µF local ceramic decoupling; accepts wide range from 0.82V to 5.25V.
10 – EN	Enable Control	Active-high Schmitt-trigger input; logic high (>82% of VIN) enables converter; logic low (<25% of VIN) forces shutdown with 2.3 µA IQ.

Key Features

Feature	Design Value
Automatic Input-to-Output Bypass	When VIN ≥ VOUT, device passes input directly to output with R_DS(ON)P-based conduction loss - avoids switching losses and reduces noise in narrow-step applications (e.g., 3.6V Li-ion → 3.3V rail).
Programmable UVLO & LBO	UVLOSTART adjustable via external resistor divider; LBO provides early battery depletion warning before system brownout, enabling graceful shutdown or data save.
Output Discharge on Shutdown	Internal discharge FET actively pulls VOUT to GND when EN = low - prevents floating outputs and ensures clean power-down in systems with multiple rails.
Integrated Synchronous Rectification	Eliminates external Schottky diode; reduces conduction loss and improves light-load efficiency by >15% versus asynchronous designs.
Low-Noise Anti-Ringing Control	Suppresses parasitic oscillations at SW node during turn-off, minimizing EMI and eliminating need for snubbers in space-constrained layouts.

Applications

Wireless Sensor Nodes	Bluetooth® Headsets
Use Scenario: Sub-100 µA average current, intermittent 100 ms RF transmit bursts powered by CR2032 or AAA alkaline cells. IC Role / Device Role / Timing Role: Primary voltage booster maintaining stable 3.3V supply during BLE packet transmission while minimizing quiescent drain between events. Use Value: 5 µA quiescent current and automatic bypass extend battery life beyond 2 years; LBO enables firmware-driven battery replacement alerts.	Use Scenario: Compact earbud PCB with tight thermal constraints and strict EMI limits for 2.4 GHz coexistence. IC Role / Device Role / Timing Role: Efficient 1.2V–1.5V single-cell Li-ion boost to 3.3V audio and radio subsystems, with fixed 500 kHz switching for predictable filter design. Use Value: Low-noise anti-ringing control and synchronous rectification reduce conducted emissions; 54°C/W TDFN thermal resistance sustains full load at +65°C ambient.
Remote Industrial Controllers	Portable Medical Sensors
Use Scenario: Battery-backed RS-485 node operating in unconditioned environments (-40°C to +85°C). IC Role / Device Role / Timing Role: Reliable 2.0V–3.6V input boost to 5.0V for isolated transceiver, with UVLOSTOP = 0.8V preventing alkaline leakage at end-of-life. Use Value: -40°C to +125°C junction rating and guaranteed 600 mA bypass current ensure robust operation across industrial temperature extremes.	Use Scenario: Single-use glucose monitor with disposable AA battery and mandatory low-leakage shutdown behavior. IC Role / Device Role / Timing Role: Step-up regulator powering precision ADC and BLE SoC from fresh or aged alkaline cells, with output discharge preventing residual charge hazards. Use Value: 0.8V UVLOSTOP and integrated discharge FET meet IEC 62366 usability and safety requirements for consumer medical devices.

Wireless Sensor Nodes

Bluetooth® Headsets

Use Scenario: Sub-100 µA average current, intermittent 100 ms RF transmit bursts powered by CR2032 or AAA alkaline cells.

IC Role / Device Role / Timing Role: Primary voltage booster maintaining stable 3.3V supply during BLE packet transmission while minimizing quiescent drain between events.

Use Value: 5 µA quiescent current and automatic bypass extend battery life beyond 2 years; LBO enables firmware-driven battery replacement alerts.

Use Scenario: Compact earbud PCB with tight thermal constraints and strict EMI limits for 2.4 GHz coexistence.

IC Role / Device Role / Timing Role: Efficient 1.2V–1.5V single-cell Li-ion boost to 3.3V audio and radio subsystems, with fixed 500 kHz switching for predictable filter design.

Use Value: Low-noise anti-ringing control and synchronous rectification reduce conducted emissions; 54°C/W TDFN thermal resistance sustains full load at +65°C ambient.

Remote Industrial Controllers

Portable Medical Sensors

Use Scenario: Battery-backed RS-485 node operating in unconditioned environments (-40°C to +85°C).

IC Role / Device Role / Timing Role: Reliable 2.0V–3.6V input boost to 5.0V for isolated transceiver, with UVLOSTOP = 0.8V preventing alkaline leakage at end-of-life.

Use Value: -40°C to +125°C junction rating and guaranteed 600 mA bypass current ensure robust operation across industrial temperature extremes.

Use Scenario: Single-use glucose monitor with disposable AA battery and mandatory low-leakage shutdown behavior.

IC Role / Device Role / Timing Role: Step-up regulator powering precision ADC and BLE SoC from fresh or aged alkaline cells, with output discharge preventing residual charge hazards.

Use Value: 0.8V UVLOSTOP and integrated discharge FET meet IEC 62366 usability and safety requirements for consumer medical devices.

Equivalent & Alternatives

The following parts are listed as comparable options for similar boost converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP16412-I/MS	Same PWM-only mode and output discharge shutdown, but uses 10-lead MSOP package without exposed pad; θ_JA = 71°C/W vs. 54°C/W for TDFN.	Preferred for legacy MSOP footprints where thermal margin is sufficient; lacks EP for enhanced thermal performance.	Select MCP16412-I/MS if board layout rework is constrained and thermal load remains ≤400 mA continuous.
TPS610992DRCR	Lower IQ (300 nA shutdown, 400 nA operating), but fixed 3.3V/5.0V outputs only; no adjustable VOUT, UVLO programming, or bypass mode.	Suitable for ultra-low-power, fixed-voltage applications where flexibility is secondary to minimum IQ.	Choose TPS610992DRCR only when output voltage is fixed and sub-µA operation dominates over programmability and battery longevity features.

Compared with MCP16412-I/MS, MCP16416-I/UN offers superior thermal performance in TDFN packaging; versus TPS610992DRCR, it trades ultra-low IQ for full programmability, bypass operation, and robust battery management - making it optimal for flexible, long-life, multi-chemistry battery systems.

Availability

MCP16416-I/UN is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, and Bluetooth audio accessories requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for MCP16416-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 Inc. is a leading provider of microcontrollers, analog, FPGA, and connectivity solutions, serving automotive, industrial, consumer, and communications markets with vertically integrated silicon and software.

The MCP1641X product line was designed specifically for ultra-low-power, battery-optimized DC-DC conversion in compact IoT and wearable devices - emphasizing programmable battery monitoring, automatic bypass, and minimal quiescent consumption.

FAQ

What is the minimum input voltage required for MCP16416-I/UN to start switching?

The MCP16416-I/UN has a typical start-up voltage of 0.85V when the UVLO pin is connected directly to VIN. This value is programmable downward to 0.82V (min) or upward using an external resistive divider. Below 0.82V, the device remains in UVLO and will not initiate switching - a safeguard against deep alkaline cell discharge.

Does MCP16416-I/UN support adjustable output voltage, and how is it configured?

Yes, MCP16416-I/UN supports adjustable output voltage from 1.8V to 5.25V using a standard resistor divider from VOUT to VFB. The internal feedback reference is 0.97V, so R1/R2 ratio determines VOUT per VOUT = 0.97V × (1 + R1/R2). Layout best practices require short, low-impedance traces to VFB to maintain regulation accuracy.

What is the function of the PG pin on MCP16416-I/UN, and how does it differ from PGT pins on other MCP1641X variants?

The PG pin on MCP16416-I/UN is an open-drain Power Good output that asserts low when VOUT falls >10% below nominal regulation. Unlike PGT variants (e.g., MCP16411), it does not monitor die temperature - MCP16416-I/UN omits overtemperature indication entirely, simplifying system monitoring for cost-sensitive applications.

Can MCP16416-I/UN operate in automatic input-to-output bypass mode, and under what conditions?

Yes, MCP16416-I/UN enters automatic bypass mode when VIN ≥ VOUT. In this state, the internal P-channel MOSFET conducts directly, delivering VOUT = VIN − (IOUT × R_DS(ON)P), with R_DS(ON)P = 0.5 Ω typical. Bypass mode maximizes efficiency and minimizes noise when input and output voltages converge - common in two-cell alkaline systems powering 3.0V–3.3V loads.

What package options are available for MCP16416-I/UN, and how do their thermal characteristics compare?

MCP16416-I/UN is offered in both 10-Lead MSOP and 10-Lead 3 mm × 3 mm TDFN packages. The TDFN variant includes an exposed thermal pad (EP) connected to PGND/SGND, achieving θ_JA = 54°C/W - 24% lower than the MSOP's 71°C/W. For continuous >400 mA loads or high-ambient environments, the TDFN is strongly recommended.

MCP16416-I/UN Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

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

Packaging:: Tube

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

MCP16416-I/UN FAQ

1.How can I place an order for MCP16416-I/UN through Aetrix?

Please submit a Request for Quotation (RFQ) for MCP16416-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 MCP16416-I/UN reliable?

The price and inventory of MCP16416-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 MCP16416-I/UN is usually 5 days.

3.What payment methods are accepted for MCP16416-I/UN?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP16416-I/UN transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MCP16416-I/UN?

MCP16416-I/UN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MCP16416-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 MCP16416-I/UN?

For technical support, including MCP16416-I/UN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP16416-I/UN requirements.

6.How does Aetrix verify that MCP16416-I/UN is sourced from the original manufacturer or authorized distributors?

All MCP16416-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 MCP16416-I/UN meets industry standards.

7.What is the process for return or replacement of MCP16416-I/UN?

All MCP16416-I/UN units undergo pre-shipment inspection (PSI). If there is an issue with MCP16416-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 MCP16416-I/UN part is unused and in its original packaging.

Return procedure for MCP16416-I/UN:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

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.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…