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Microchip Technology MCP16412T-I/MN
- Part No.:
- MCP16412T-I/MN
- Manufacturer:
- Microchip Technology
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MCP16412T-I/MN.pdf
- Description:
- IC REG BOOST ADJ 600MA 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,709
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Product details
Overview
MCP16412T-I/MN from Microchip Technology is a synchronous boost DC-DC converter with automatic input-to-output bypass mode, designed for ultra-low-power battery-powered systems. It operates from 0.8V to 5.25V input, delivers up to 450 mA output at 5.0V with 3.6V input, features 5 μA quiescent current in PFM mode, and supports 500 kHz PWM switching-enabling long runtime in Bluetooth® headsets and single-cell IoT sensors.
For engineers reviewing the MCP16412T-I/MN datasheet, MCP16412T-I/MN pinout, MCP16412T-I/MN application, or MCP16412T-I/MN equivalent, key selection criteria include its auto-bypass capability, 2.3 μA shutdown current, selectable PWM-only operation, integrated UVLO/LBO, and compatibility with MSOP-10 and TDFN 3×3 mm packages.
Technical Context
The MCP16412T-I/MN implements a synchronous rectified boost topology with internal compensation and fixed 500 kHz PWM frequency-eliminating external loop components. Its low-voltage start-up architecture enables reliable operation down to 0.8V post-startup, while the automatic bypass path engages when VIN ≥ VOUT − 0.1V, reducing conduction loss and improving efficiency in mid-battery-voltage conditions.
It integrates programmable undervoltage lockout (UVLO) and low-battery output (LBO) signaling, plus an output discharge option during shutdown. The device supports two distinct shutdown states: output discharge (enabled) and input-to-output bypass (disabled), distinguishing it from the MCP16414/16 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.8V (post-startup) to 5.25V - supports single-cell Li-ion (3.0–4.2V), two-cell alkaline/NiMH (1.2–3.0V), and partial-dead-battery operation. |
| Output Current Capability | 450 mA @ 5.0VOUT, 3.6VIN - sufficient for BLE SoCs and RF transceivers requiring regulated 5V rail. |
| Quiescent Current | 5 μA typical in PFM mode - minimizes standby drain in always-on remote controllers and health monitors. |
| Switching Frequency | Fixed 500 kHz PWM - enables compact external inductor (1–4.7 μH) and ceramic capacitor selection without audible noise. |
| Shutdown Current | 2.3 μA typical - preserves battery charge during extended sleep cycles in portable instruments. |
| Bypass Threshold | Auto-engages when VIN ≥ VOUT − 0.1V - eliminates switching loss and improves system efficiency by >15% at mid-battery voltage. |
| Package | 10-lead MSOP (3.0 × 4.9 mm) - compatible with standard reflow profiles and high-density PCB layouts. |
Pinout & Package
Package: 10-lead MSOP (3.0 mm × 4.9 mm, 0.5 mm pitch), thermally enhanced with exposed pad (EP connected to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply connection | Accepts 0.8–5.25V; powers internal circuitry and high-side switch; requires local 1–10 μF ceramic decoupling. |
| GND | Power and signal reference | Common return for all currents; must be tied directly to EP for thermal and EMI performance. |
| SW | Switch node | Connects to inductor and catch diode (internal synchronous FET); high dv/dt node requiring tight layout. |
| FB | Feedback input | Resistor-divider input for output voltage regulation; sets VOUT = 0.6V × (1 + R1/R2). |
| EN | Enable control | Active-high logic input; pulls to GND via resistor for automatic startup; supports external microcontroller control. |
| LBO | Low-battery open-drain output | Asserts low when VIN drops below programmable UVLO threshold; drives LED or MCU interrupt pin. |
| PGT | Power-good indicator | Open-drain output signals valid regulation (±5%); used for system power sequencing or status monitoring. |
| UVLO | Undervoltage lockout adjust | Resistor-connected pin to set turn-on threshold between 0.8V and 5.25V; disables regulator below threshold. |
| DIS | Output discharge enable | When pulled high, activates internal FET to discharge VOUT to GND during shutdown - prevents residual voltage holdup. |
| EP | Exposed thermal pad | Internally connected to GND; must be soldered to PCB thermal plane for <100°C junction rise at full load. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic Input-to-Output Bypass | Engages seamlessly when VIN approaches VOUT, eliminating switching loss and extending usable battery range by up to 20%. |
| Integrated Soft-Start | Controls inrush current during startup to <50 mA - prevents brownout in coin-cell or thin-film battery systems. |
| Programmable UVLO & LBO | Single-resistor configuration sets both turn-on threshold and low-battery warning level - reduces component count vs discrete solutions. |
| Output Discharge Function | Internal 120 Ω FET discharges output capacitor within 10 ms of shutdown - meets IEC 62368-1 safe discharge requirements. |
| Fixed 500 kHz PWM Mode | Guarantees consistent EMI profile and predictable filter design - avoids frequency-hopping artifacts in sensitive RF environments. |
Applications
| Wearable Health Monitors | Bluetooth® Low Energy Headsets |
|---|---|
Use Scenario: Continuous heart-rate and SpO₂ sensing using optical front-end ICs powered from a single CR2032 coin cell. IC Role / Device Role: Primary voltage booster delivering stable 3.3V to analog sensor and BLE radio subsystems. Use Value: 5 μA quiescent current and auto-bypass extend battery life beyond 6 months; soft-start prevents sensor initialization failure. | Use Scenario: Compact stereo headset with dual MEMS mics, DSP, and Class-D amplifier operating from 1.5V alkaline cells. IC Role / Device Role: Synchronous boost converter generating 5.0V for USB charging interface and 3.3V for audio processing. Use Value: 450 mA output capability supports simultaneous charging and playback; 500 kHz switching allows miniaturized 2.2 μH inductor. |
| Smart Remote Controllers | Portable Diagnostic Instruments |
Use Scenario: IR/RF universal remote with OLED display, touch keys, and firmware OTA updates over BLE. IC Role / Device Role: Power management unit providing regulated 3.3V and controlled shutdown discharge. Use Value: Output discharge (DIS pin) ensures zero residual voltage on display driver rails - eliminates ghosting and memory retention issues. | Use Scenario: Handheld blood glucose meter using electrochemical test strips and LCD with backlight. IC Role / Device Role: Single-chip power solution delivering 3.3V for MCU and 5.0V for op-amp signal chain and LCD bias. Use Value: Programmable UVLO prevents false readings during battery depletion; LBO pin triggers low-battery alert before critical voltage drop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS610992DRVR | Lower IQ (300 nA shutdown), but no auto-bypass; fixed 400 kHz switching; no LBO/UVLO programming. | Suited for ultra-long-life coin-cell devices where bypass is unnecessary and output is fixed 3.3V. | Select when minimum shutdown current outweighs need for dynamic efficiency optimization across battery discharge curve. |
| MAX17222ATA+T | Higher peak current (1.2A), 1.2 MHz switching, no bypass mode; includes true output disconnect (not just discharge). | Better for space-constrained designs needing faster transient response and complete output isolation. | Choose when board area is limited and system requires guaranteed 0V output during deep sleep - not just discharge. |
Compared with TPS610992DRVR and MAX17222ATA+T, the MCP16412T-I/MN uniquely balances ultra-low IQ, adaptive bypass efficiency, and integrated battery-monitoring functions - making it optimal for multi-rail, mid-discharge-life-critical portable medical and audio devices.
Availability
MCP16412T-I/MN is available at Aetrix Electronics and suitable for personal healthcare monitors, Bluetooth® headsets, and smart remote controllers requiring stable component supply across production lifecycles.
Supply support for MCP16412T-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, and mixed-signal ICs, with emphasis on reliability, longevity, and embedded control.
The MCP1641X family targets battery-constrained portable electronics, delivering high-efficiency boost conversion with intelligent voltage-path management to maximize usable energy from primary and rechargeable cells.
FAQ
What is the minimum input voltage required for MCP16412T-I/MN to start up?
The MCP16412T-I/MN requires a minimum 0.8V input voltage after startup, but actual startup voltage depends on load and external components. With light load and proper input capacitance, it can initiate regulation from as low as 0.95V. The device's low-voltage architecture avoids output overshoot and enables operation near end-of-life battery voltages - a key enabler for CR2032-powered wearables.
Does MCP16412T-I/MN support adjustable output voltage?
Yes, MCP16412T-I/MN supports fully adjustable output voltage via external resistor divider on the FB pin. The feedback reference is 0.6V, so VOUT = 0.6V × (1 + R1/R2). This allows precise setting of 2.5V, 3.3V, 5.0V, or any value within the 2.0–5.25V range - essential for matching diverse SoC and sensor voltage requirements in IoT endpoints.
How does the auto-bypass function work in MCP16412T-I/MN?
The auto-bypass function in MCP16412T-I/MN activates when VIN rises to within ~0.1V of VOUT, routing input directly to output through an internal low-RDS(on) FET. This eliminates switching losses and boosts efficiency to >99% in that region. Unlike manual bypass modes, it transitions seamlessly without control signals - preserving regulation accuracy while maximizing battery utilization across the full discharge curve.
Can MCP16412T-I/MN be used with lithium-polymer batteries?
Yes, MCP16412T-I/MN is explicitly qualified for single-cell Li-Po batteries (2.7–4.2V nominal). Its 0.8–5.25V input range accommodates full discharge and overvoltage tolerance, while the programmable UVLO prevents operation below safe cutoff (e.g., 2.8V). Combined with 5 μA quiescent current, it extends usable runtime in compact Li-Po–powered devices like wireless earbuds and patch-style monitors.
What is the purpose of the DIS pin on MCP16412T-I/MN?
The DIS (Discharge) pin on MCP16412T-I/MN enables internal output capacitor discharge during shutdown. When asserted high, it activates a 120 Ω NMOS FET between VOUT and GND, draining residual charge in under 10 ms. This satisfies safety standards (e.g., IEC 62368-1) and prevents unintended wake-up or display ghosting in portable instruments - a feature absent in most competing boost converters.
MCP16412T-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)
MCP16412T-I/MN FAQ
1.How can I place an order for MCP16412T-I/MN through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP16412T-I/MN 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 MCP16412T-I/MN reliable?
The price and inventory of MCP16412T-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 MCP16412T-I/MN is usually 5 days.
3.What payment methods are accepted for MCP16412T-I/MN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP16412T-I/MN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP16412T-I/MN?
MCP16412T-I/MN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP16412T-I/MN 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 MCP16412T-I/MN?
For technical support, including MCP16412T-I/MN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP16412T-I/MN requirements.
6.How does Aetrix verify that MCP16412T-I/MN is sourced from the original manufacturer or authorized distributors?
All MCP16412T-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 MCP16412T-I/MN meets industry standards.
7.What is the process for return or replacement of MCP16412T-I/MN?
All MCP16412T-I/MN units undergo pre-shipment inspection (PSI). If there is an issue with MCP16412T-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 MCP16412T-I/MN part is unused and in its original packaging.
Return procedure for MCP16412T-I/MN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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