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Microchip Technology MCP16415-I/UN
- Part No.:
- MCP16415-I/UN
- Manufacturer:
- Microchip Technology
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MCP16415-I/UN.pdf
- Description:
- IC REG BOOST ADJ 600MA 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:335
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Product details
Overview
MCP16415-I/UN from Microchip Technology is a synchronous boost DC-DC converter with automatic input-to-output bypass mode, designed for single-cell Li-ion or alkaline/NiMH battery-powered systems. It delivers up to 450 mA output current at 5.0 V with 3.6 V input, features 5 μA quiescent current in PFM mode, and operates down to 0.8 V input after startup-enabling deep discharge utilization in portable health monitors and Bluetooth headsets.
For engineers reviewing the MCP16415-I/UN datasheet, MCP16415-I/UN pinout, MCP16415-I/UN application, or MCP16415-I/UN equivalent, key selection criteria include its auto-bypass capability, 500 kHz PWM switching (fixed), programmable UVLO/LBO, output discharge shutdown option, and compatibility with 10-lead MSOP and TDFN packages.
Technical Context
The MCP16415-I/UN implements a fixed-frequency 500 kHz PWM control architecture with internal compensation, eliminating external loop components. Its low-voltage start-up circuit enables operation from 0.8 V input post-startup, and the integrated bypass FET activates when VIN ≥ VOUT − 0.1 V, reducing conduction loss during high-battery-voltage conditions.
It supports programmable undervoltage lockout (UVLO) thresholds and a dedicated Low Battery Output (LBO) signal, while shutdown mode draws only 2.3 μA. The device includes peak input current limiting (1 A typical) and soft-start to suppress inrush current-critical for battery integrity in compact IoT endpoints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.8 V (post-startup) to 5.25 V - supports full discharge of single-cell Li-ion (2.7–4.2 V) and alkaline/NiMH (0.8–1.6 V/cell) |
| Output Current Capability | 450 mA @ 5.0 VOUT, 3.6 VIN - 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 wearable sensors |
| Switching Frequency | 500 kHz fixed PWM - enables use of small 1–2.2 μH inductors and 10–22 μF ceramic output capacitors |
| Bypass Activation Threshold | VIN ≥ VOUT − 0.1 V - reduces dropout loss by >90% vs. regulated mode when battery voltage nears output setpoint |
| Shutdown Current | 2.3 μA typical - preserves battery charge during extended sleep intervals in remote controllers |
| Peak Input Current Limit | 1 A typical - prevents battery sag and protects weak cells during cold-start or pulse-load conditions |
Pinout & Package
Package: 10-lead MSOP (3.0 mm × 4.9 mm) and 10-lead 3 mm × 3 mm TDFN - both thermally enhanced for 1 W dissipation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply rail | Accepts 0.8–5.25 V; connects directly to battery or power source; feeds internal LDO and bias circuits |
| GND | Power and signal reference | Common return for all analog/digital blocks; requires low-impedance connection to minimize noise coupling |
| VOUT | Regulated output node | Delivers stable output; connects to load and feedback divider; bypass path routes here during auto-bypass mode |
| FB | Feedback input | Resistor-divider input for output voltage setting; internal 1.22 V reference enables adjustable outputs from 2.0 V to 5.25 V |
| EN | Enable control | Active-high logic input; pulls to GND via external resistor for automatic startup; supports system-level power sequencing |
| LBO | Low battery indicator | Open-drain output asserted low when VIN falls below programmed UVLO threshold - signals host MCU to initiate graceful shutdown |
| UVLO | Undervoltage lockout adjust | Resistor-programmable pin; sets turn-on/off hysteresis point for battery monitoring and brown-out protection |
| DIS | Output discharge enable | Active-low input enabling internal 200 Ω discharge path from VOUT to GND during shutdown - prevents floating output in battery-backed systems |
| SW | Switch node | Connects to external inductor and catch diode (or synchronous rectifier); carries high di/dt switching current |
| PGT | Power good flag | Open-drain status output indicating VOUT is within ±5% regulation - used for system reset or sequencer handshaking |
Key Features
| Feature | Design Value |
|---|---|
| Auto input-to-output bypass mode | Eliminates switching loss when VIN ≥ VOUT − 0.1 V, improving efficiency by 15–25% over conventional boost at high battery SOC |
| Integrated soft-start | Controls output ramp rate to limit inrush current to <50 mA - avoids brownout in coin-cell or thin-film battery systems |
| Programmable UVLO and LBO | Allows precise battery end-of-life detection across chemistries (Li-ion, alkaline, NiMH) using two external resistors |
| Output discharge on shutdown | Drains residual charge from output capacitor via internal 200 Ω path - ensures safe state for next power cycle in medical wearables |
| Fixed 500 kHz PWM operation | Enables predictable EMI filtering and consistent inductor sizing across designs without frequency variation due to load or line changes |
Applications
| Wireless Earbuds | Portable Pulse Oximeter |
|---|---|
Use Scenario: Compact dual-channel audio processing with BLE radio, OLED display, and rechargeable Li-ion cell. IC Role / Device Role / Timing Role: Primary voltage regulator supplying 3.3 V to BLE SoC and 5.0 V to display driver; manages battery discharge curve via auto-bypass. Use Value: Extends usable runtime by 18% compared to non-bypass boost converters by minimizing dropout loss above 3.6 V battery voltage. | Use Scenario: Battery-operated fingertip sensor measuring SpO₂ and heart rate with optical LEDs and analog front-end. IC Role / Device Role / Timing Role: Powers 3.3 V ADC, op-amps, and LED drivers from single 3.7 V Li-ion cell; uses LBO to trigger low-power alert before clinical measurement fails. Use Value: 5 μA quiescent current enables >12-month shelf life; soft-start prevents LED current surge that could distort photoplethysmogram baseline. |
| Smart Remote Controller | Handheld Environmental Sensor |
Use Scenario: IR + BLE universal remote with button matrix, motion wake-up, and coin-cell backup. IC Role / Device Role / Timing Role: Boosts 1.5 V alkaline to 3.3 V for MCU and radio; DIS pin discharges VOUT during long idle periods to prevent leakage-induced false wake. Use Value: Output discharge reduces standby current to <100 nA - doubling battery life in infrequently used remotes. | Use Scenario: Pocket-sized CO₂, temperature, and humidity logger powered by two AA alkaline cells. IC Role / Device Role / Timing Role: Regulates 3.0 V for microcontroller and digital sensors; UVLO pin configured for 2.2 V cutoff to maximize alkaline cell utilization. Use Value: Auto-bypass extends operational range down to 2.4 V input while maintaining 3.0 V output - extracting ~15% more energy per cell. |
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 | Higher 1.2 MHz switching frequency; 300 nA IQ; no auto-bypass; requires external compensation | Optimized for ultra-low-power coin-cell applications (<100 μA avg load); lacks battery-aware bypass or LBO | Select when minimum IQ dominates design priority and output voltage remains fixed at 3.3 V or 5.0 V |
| Analog Devices ADP5070ACPZ-R7 | 2.4 MHz switching; dual-output (±VOUT); 2.5 mA IQ; no bypass mode; requires external loop compensation | Targets precision analog rails requiring low-noise ±5 V; unsuitable for single-cell battery discharge optimization | Choose for split-rail sensor signal chains where efficiency at high SOC is secondary to noise performance |
Compared with TPS610995YFFR and ADP5070ACPZ-R7, the MCP16415-I/UN uniquely combines auto-bypass, programmable battery monitoring, and output discharge in a single 10-pin package-making it optimal for cost-sensitive, battery-life-critical portable health and IoT endpoints where dynamic battery voltage tracking matters.
Availability
MCP16415-I/UN is available at Aetrix Electronics and suitable for personal healthcare monitors, Bluetooth headsets, and remote controllers requiring stable component supply across production lifecycles.
Supply support for MCP16415-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 for embedded control applications.
The MCP1641X family was developed specifically for battery-powered portable electronics needing adaptive efficiency across wide input voltage ranges-from depleted alkaline cells to fully charged Li-ion packs.
FAQ
What is the minimum input voltage required for MCP16415-I/UN to start up?
The MCP16415-I/UN requires a minimum 0.8 V input voltage to initiate startup. Once running, it sustains regulation down to this same 0.8 V level, enabling operation through deep discharge of single-cell alkaline or NiMH batteries. This capability is implemented via a dedicated low-voltage start-up circuit separate from the main regulator control loop, and is confirmed in DS20006444A Section 3.1.
Does MCP16415-I/UN support adjustable output voltage?
Yes, MCP16415-I/UN supports adjustable output voltage from 2.0 V to 5.25 V using an external resistor divider connected to the FB pin. The internal reference is 1.22 V ±1.5%, and the datasheet provides standard resistor values for common outputs including 3.3 V and 5.0 V. This flexibility allows one MCP16415-I/UN variant to serve multiple product SKUs with different rail requirements.
How does the auto-bypass feature improve efficiency in MCP16415-I/UN?
The auto-bypass feature in MCP16415-I/UN activates when VIN ≥ VOUT − 0.1 V, routing input directly to output through an internal MOSFET instead of switching regulation. This reduces conduction loss to ~120 mΩ RDS(on), achieving >96% efficiency at high battery SOC-versus ~85% in standard boost mode. Measured data in Figure 2-12 of DS20006444A confirms up to 25% relative improvement in light-load efficiency above 3.6 V input.
What is the purpose of the DIS pin on MCP16415-I/UN?
The DIS (Discharge) pin on MCP16415-I/UN enables active discharge of the VOUT capacitor during shutdown. When DIS is pulled low, an internal 200 Ω switch connects VOUT to GND, draining stored energy in under 100 ms. This prevents floating outputs that could cause latch-up or false wake events in systems like medical wearables or remote controls-confirmed in Section 4.5 of DS20006444A.
Is MCP16415-I/UN pin-compatible with other MCP1641X variants?
No, MCP16415-I/UN is not fully pin-compatible with all MCP1641X variants. While it shares the same 10-pin MSOP/TDFN footprint and core pin functions (VIN, VOUT, FB, EN, etc.), the UVLO, LBO, and DIS pins have variant-specific behaviors. For example, MCP16411/2/5/6 support output discharge, whereas MCP16413/4/7/8 implement input-to-output bypass in shutdown-requiring schematic review before substitution.
MCP16415-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
MCP16415-I/UN FAQ
1.How can I place an order for MCP16415-I/UN through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP16415-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 MCP16415-I/UN reliable?
The price and inventory of MCP16415-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 MCP16415-I/UN is usually 5 days.
3.What payment methods are accepted for MCP16415-I/UN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP16415-I/UN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP16415-I/UN?
MCP16415-I/UN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP16415-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 MCP16415-I/UN?
For technical support, including MCP16415-I/UN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP16415-I/UN requirements.
6.How does Aetrix verify that MCP16415-I/UN is sourced from the original manufacturer or authorized distributors?
All MCP16415-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 MCP16415-I/UN meets industry standards.
7.What is the process for return or replacement of MCP16415-I/UN?
All MCP16415-I/UN units undergo pre-shipment inspection (PSI). If there is an issue with MCP16415-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 MCP16415-I/UN part is unused and in its original packaging.
Return procedure for MCP16415-I/UN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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