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Microchip Technology MCP16417-I/UN
- Part No.:
- MCP16417-I/UN
- Manufacturer:
- Microchip Technology
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MCP16417-I/UN.pdf
- Description:
- IC REG BOOST ADJ 600MA 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:295
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Product details
Overview
MCP16417-I/UN from Microchip Technology is a synchronous boost DC-DC converter with auto-bypass functionality, designed for single-cell Li-ion or alkaline/NiMH battery-powered systems. It delivers up to 450 mA output current at 5.0 V output from 3.6 V input, features 5 μA quiescent current in PFM mode, 96% peak efficiency, and automatic input-to-output bypass operation to extend battery life in portable health and IoT devices.
For engineers reviewing the MCP16417-I/UN datasheet, MCP16417-I/UN pinout, MCP16417-I/UN application, or MCP16417-I/UN equivalent, key selection considerations include its 0.8–5.25 V input range, selectable PFM/PWM operation, programmable UVLO/LBO, 2.3 μA shutdown current, and dual-package availability (MSOP-10/TDFN 3×3 mm) for space-constrained designs.
Technical Context
The MCP16417-I/UN implements an adaptive control architecture that automatically transitions between regulated boost mode and direct input-to-output bypass mode when VIN ≥ VOUT − headroom, eliminating unnecessary switching losses. Its low-voltage start-up capability (down to 0.8 V post-startup) and internal compensation enable stable operation across wide input ranges without external loop components.
It operates in automatic PFM/PWM mode-reducing switching frequency under light loads to maintain high efficiency-and integrates programmable undervoltage lockout (UVLO) and low-battery output (LBO) with independent thresholds, supporting precise battery-state monitoring in wearables and remote controls.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.8 V (after startup) to 5.25 V: supports full discharge of single-cell Li-ion (2.7–4.2 V) and two-cell alkaline (1.0–3.2 V). |
| Quiescent Current | 5 μA typical in PFM mode: minimizes standby power loss, critical for multi-year battery life in Bluetooth headsets. |
| Peak Efficiency | 96% at mid-load: reduces thermal stress and extends runtime in compact personal healthcare devices. |
| Output Current Capability | 450 mA @ 5.0 VOUT, 3.6 VIN: sufficient to power BLE SoCs and sensor subsystems without external LDOs. |
| Switching Mode | Automatic PFM/PWM: maintains >85% efficiency from 10 μA to full load, eliminating manual mode selection. |
| Shutdown Current | 2.3 μA typical: enables ultra-low-power system sleep states in remote controllers. |
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 optimized for high-density portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input voltage supply | Accepts 0.8–5.25 V; connects directly to battery or power rail; internal UVLO reference point. |
| VOUT | Regulated output voltage | Delivers stable output; feeds downstream logic/sensors; bypass path connects here during auto-bypass mode. |
| FB | Feedback input | Sets output voltage via external resistor divider; enables adjustable VOUT from 2.0 V to 5.25 V. |
| EN | Enable control | Active-high digital input; asserts soft-start on rising edge and initiates shutdown sequence on falling edge. |
| LBO | Low-battery open-drain output | Asserts low when VIN drops below programmable threshold; signals host MCU (e.g., PIC10F320) for battery management. |
| PGT | Power-good indicator | Open-drain output confirms regulation stability; used for system power sequencing and fault detection. |
| GND | Ground reference | Common return for power and signal paths; requires low-impedance connection to minimize noise coupling. |
| SW | Switch node | Connects to external inductor; carries high-frequency pulsed current; layout critical for EMI and efficiency. |
Key Features
| Feature | Design Value |
|---|---|
| Auto input-to-output bypass | Eliminates switching losses when VIN ≥ VOUT − 150 mV, extending usable battery capacity by up to 18% in partial-discharge cycles. |
| Integrated soft-start | Controls ramp rate of VOUT during startup, limiting inrush current to <100 mA and preventing brownout in weak-battery conditions. |
| Programmable UVLO & LBO | Independent resistor-programmable thresholds allow precise battery end-of-life detection and system-level power management coordination. |
| No external compensation required | Internal Type-II compensation eliminates need for external capacitor/resistor network, reducing BOM count and layout area by ≥2 components. |
| Thermally enhanced packages | MSOP-10 and TDFN 3×3 mm offer θJA ≤ 120°C/W, enabling 450 mA continuous output without forced airflow in handheld enclosures. |
Applications
| Wearable Health Monitors | Bluetooth® Headsets |
|---|---|
Use Scenario: Continuous heart-rate and SpO₂ sensing powered by coin-cell or small Li-ion battery. IC Role / Device Role: Primary voltage regulator supplying 3.3 V to optical sensor IC and BLE radio. Use Value: Auto-bypass mode preserves battery energy when cell voltage exceeds 3.3 V, extending operational time beyond 7 days per charge. | Use Scenario: Compact stereo headset requiring low-noise 3.3 V rail for audio codec and BT SoC. IC Role / Device Role: Synchronous boost converter with integrated soft-start and PFM/PWM transition. Use Value: 5 μA quiescent current and 96% efficiency sustain >10-hour talk time from a 120 mAh Li-polymer cell. |
| Smart Remote Controllers | Portable Diagnostic Instruments |
Use Scenario: IR/RF universal remote with OLED display and motion sensing. IC Role / Device Role: Single-chip power solution delivering 5.0 V to display driver and 3.3 V to MCU via LDO post-regulation. Use Value: Programmable LBO triggers firmware alert at 2.4 V, enabling graceful shutdown before data corruption occurs. | Use Scenario: Handheld blood glucose meter using two AA alkaline cells (1.0–3.2 V range). IC Role / Device Role: Wide-input boost regulator powering 3.3 V microcontroller and analog front-end. Use Value: 0.8 V startup capability ensures reliable operation down to 1.1 V per cell, maximizing usable battery capacity. |
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 3.3 V output; no FB pin; 2.5 μA IQ; no auto-bypass; 0.9 V min start-up. | Lacks adjustable output and battery-sensing features; suited only for fixed-rail, ultra-low-IQ use cases. | Select when output voltage is fixed and system-level battery monitoring is handled externally. |
| Analog Devices ADP5070ACPZ-R7 | Higher 2.5 A switch current; 2.7–15 V input; no auto-bypass; requires external compensation; 2.5 mm × 3 mm LFCSP. | Targets higher-power industrial sensors, not battery-limited portables; larger solution size and higher IQ (25 μA). | Choose for >500 mA loads where efficiency at high current matters more than standby drain. |
Compared with TPS61291DRVR and ADP5070ACPZ-R7, the MCP16417-I/UN uniquely balances ultra-low quiescent current, auto-bypass optimization, and programmable battery monitoring in a 3×3 mm footprint-making it the only option supporting full-cycle battery utilization in sub-500 mA portable medical and audio devices.
Availability
MCP16417-I/UN is available at Aetrix Electronics and suitable for wearable health monitors, Bluetooth® headsets, and smart remote controllers requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for MCP16417-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 manufacturer 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 high efficiency across wide input voltage ranges and intelligent battery utilization-targeting wearables, hearing aids, and wireless sensor nodes.
FAQ
What is the minimum input voltage required for MCP16417-I/UN to start switching?
The MCP16417-I/UN starts switching at 0.8 V after initial startup. This low-voltage capability allows it to operate deep into battery discharge-down to ~1.1 V per cell in two-cell alkaline configurations-ensuring maximum usable energy extraction. The device maintains regulation and auto-bypass functionality throughout this range, and the MCP16417-I/UN datasheet specifies this value under "Electrical Characteristics" with test conditions at TA = 25°C and ILOAD = 10 mA.
Does MCP16417-I/UN support adjustable output voltage?
Yes, the MCP16417-I/UN supports adjustable output voltage via its FB (feedback) pin. Using an external resistor divider connected between VOUT, FB, and GND, designers can set VOUT from 2.0 V to 5.25 V. This flexibility enables single-design reuse across multiple products-e.g., 3.3 V for BLE radios and 5.0 V for display drivers-without changing the MCP16417-I/UN itself or its layout.
How does the auto-bypass function improve battery life in MCP16417-I/UN?
The auto-bypass function in MCP16417-I/UN disables switching and directly connects VIN to VOUT when input voltage rises above VOUT minus ~150 mV. This eliminates switching losses and reduces quiescent current to just 5 μA, increasing effective battery capacity by up to 18% in partial-discharge cycles. For example, in a Bluetooth headset running on a 3.7 V Li-ion cell, the MCP16417-I/UN enters bypass above 3.55 V, significantly extending talk time.
What is the purpose of the LBO pin on MCP16417-I/UN?
The LBO (Low Battery Output) pin on MCP16417-I/UN is an open-drain output that asserts low when VIN falls below a user-programmable threshold. It interfaces directly with a host MCU's GPIO to trigger battery-level alerts or controlled shutdown-critical for preventing data loss in portable instruments. Unlike fixed-threshold alternatives, the MCP16417-I/UN allows independent resistor-based configuration of LBO and UVLO, enabling precise system-level power management.
Which package options are available for MCP16417-I/UN?
The MCP16417-I/UN is offered in two thermally optimized, RoHS-compliant packages: 10-lead MSOP (3.0 mm × 4.9 mm) and 10-lead 3 mm × 3 mm TDFN. Both support the same electrical specifications and pinout. The TDFN variant provides lower thermal resistance (θJA ≈ 110°C/W), making it preferred for high-density, fanless applications like hearing aids and compact diagnostic tools where the MCP16417-I/UN must sustain 450 mA continuously.
MCP16417-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
MCP16417-I/UN FAQ
1.How can I place an order for MCP16417-I/UN through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP16417-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 MCP16417-I/UN reliable?
The price and inventory of MCP16417-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 MCP16417-I/UN is usually 5 days.
3.What payment methods are accepted for MCP16417-I/UN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP16417-I/UN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP16417-I/UN?
MCP16417-I/UN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP16417-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 MCP16417-I/UN?
For technical support, including MCP16417-I/UN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP16417-I/UN requirements.
6.How does Aetrix verify that MCP16417-I/UN is sourced from the original manufacturer or authorized distributors?
All MCP16417-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 MCP16417-I/UN meets industry standards.
7.What is the process for return or replacement of MCP16417-I/UN?
All MCP16417-I/UN units undergo pre-shipment inspection (PSI). If there is an issue with MCP16417-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 MCP16417-I/UN part is unused and in its original packaging.
Return procedure for MCP16417-I/UN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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