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Monolithic Power Systems Inc. MP3414DJ-LF-P
- Part No.:
- MP3414DJ-LF-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
MP3414DJ-LF-P.pdf
- Description:
- IC REG BOOST ADJ 1.5A TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:622
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Product details
Overview
MP3414DJ-LF-P from Monolithic Power Systems is a synchronous, current-mode, step-up DC-DC converter with true output disconnect, designed for low-voltage battery-powered systems. It starts up from 0.8V input, delivers up to 4V output at 1.8A peak switch current, operates at 1MHz fixed frequency, and draws only 1μA in shutdown - enabling compact, high-efficiency boost solutions in space-constrained portable devices.
For engineers reviewing the MP3414DJ-LF-P datasheet, MP3414DJ-LF-P pinout, MP3414DJ-LF-P application, or MP3414DJ-LF-P equivalent, key selection criteria include its 0.6V–4V input range, 1.8V–4V output adjustability, integrated P-channel MOSFETs for synchronous rectification and output disconnect, inrush current limiting, and TSOT23-8 package compatibility with single-AA or coin-cell power rails.
Technical Context
The MP3414DJ-LF-P implements current-mode control with internal compensation and soft-start, eliminating external loop compensation components. Its architecture integrates both high-side and low-side P-channel MOSFETs: the low-side PMOS enables true output-to-input disconnect during shutdown, while the high-side PMOS serves as the main switching element.
It supports VIN > VOUT down-mode operation and includes over-voltage protection (OVP) clamping at ~4.3V, short-circuit protection with auto-recovery, and inrush current limiting via controlled soft-start ramp. The 1MHz switching frequency targets minimal inductor and capacitor footprint for sub-2mm² solution size.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.6V to 4V - supports single alkaline/AA (0.9–1.5V), NiMH (0.9–1.4V), or Li-ion (2.7–4.2V) input without pre-bias startup issues. |
| Output Voltage Range | 1.8V to 4V - adjustable via external resistor divider; OVP threshold fixed at ~4.3V for safety. |
| Switching Frequency | 1MHz fixed - enables use of ≤2.2μH inductors and 10μF ceramic output capacitors for ultra-compact layout. |
| Peak Switch Current | 1.8A typical - sets maximum deliverable output current under boost conditions (e.g., 1.2V→3.3V @ 500mA). |
| Quiescent Current | 35μA - ensures minimal battery drain during active regulation in always-on sensor nodes. |
| Shutdown Current | 1μA - allows full output discharge and zero-load leakage when system is powered off. |
| Efficiency | Up to 96% at mid-load - achieved via synchronous rectification and low RDS(on) internal PMOS switches. |
Pinout & Package
MP3414DJ-LF-P is housed in an 8-pin TSOT23 package (2.9mm × 1.6mm × 0.85mm, 0.65mm pitch), thermally enhanced with exposed pad connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SW) | Switch Node | Connection point between internal high-side and low-side PMOS; ties to inductor and catch diode (if used) - must be minimized for EMI and efficiency. |
| 2 (GND) | Power Ground | Main return path for switch current and IC bias; connects to exposed thermal pad for heat dissipation and noise reduction. |
| 3 (FB) | Feedback Input | Senses output voltage via resistor divider; sets regulated output per VFB = 0.6V reference - enables precise 1.8V–4V adjustment. |
| 4 (EN) | Enable Input | Active-high logic control; pulls low to enter 1μA shutdown with full output disconnect and discharge. |
| 5 (VIN) | Input Supply | Primary power input; accepts 0.6V–4V with inrush limiting - tolerant of weak sources like depleted batteries. |
| 6 (VOUT) | Output Terminal | Regulated boost output; disconnected from VIN during shutdown by internal PMOS - prevents backfeed and enables safe sequencing. |
| 7 (NC) | No Connect | Internally unconnected pin; must remain floating - no routing or soldering required. |
| 8 (GND) | Power Ground | Secondary ground pin; tied internally to Pin 2 and thermal pad - improves grounding robustness in high-frequency switching. |
Key Features
| Feature | Design Value |
|---|---|
| True Output Disconnect | Internal PMOS fully isolates VOUT from VIN in shutdown, enabling complete output discharge and zero backfeed - critical for multi-rail power sequencing. |
| 0.8V Ultra-Low Start-Up | Starts regulation from single discharged AA/NiMH cells (down to 0.8V), extending usable battery life beyond conventional boost IC limits. |
| Integrated Synchronous Rectifier | Eliminates external Schottky diode - reduces BOM count, board area, and conduction losses across full load range. |
| Inrush Current Limiting | Soft-start ramp controls output voltage rise time, preventing input rail collapse during cold start into large output capacitance. |
| VIN > VOUT Down Mode | Operates linearly as a pass-through regulator when input exceeds set output - avoids dropout and maintains regulation during battery recharge or USB input transitions. |
Applications
| Wireless Sensor Node | Portable Medical Device |
|---|---|
Use Scenario: Sub-100μA active current wearable sensor logging temperature and motion on a single CR2032 coin cell. IC Role / Device Role / Timing Role: Primary boost regulator generating stable 3.3V rail from 2.0–3.0V battery voltage, with automatic shutdown between readings. Use Value: 1μA shutdown current extends battery life to >2 years; 1MHz switching enables <1mm² total solution size including inductor and caps. | Use Scenario: Handheld pulse oximeter powered by two AAA batteries (1.8–3.0V), requiring clean 3.3V and 5V rails for analog front-end and display. IC Role / Device Role / Timing Role: First-stage boost converter delivering regulated 3.3V; feeds secondary LDO or charge pump for 5V generation. Use Value: 0.8V start-up ensures operation until battery reaches 1.0V per cell; inrush limiting prevents LED backlight flicker during power-on. |
| Low-Power IoT Tracker | Rechargeable Bluetooth Earbud |
Use Scenario: GPS-enabled asset tracker using Li-ion pouch cell (2.8–4.2V), transmitting location every 15 minutes via NB-IoT. IC Role / Device Role / Timing Role: Boost converter maintaining 3.3V supply to MCU and modem during transmission bursts (peak 150mA). Use Value: 1.8A peak switch current supports 500mA output at 3.3V from 2.8V input; 96% efficiency minimizes thermal rise in sealed enclosure. | Use Scenario: Dual earbud charging case with integrated battery monitoring and status LEDs, powered by 3.7V Li-ion. IC Role / Device Role / Timing Role: Boost regulator generating 5V for USB-C PD negotiation and LED driver supply during case charging. Use Value: VIN > VOUT down mode allows direct 3.7V pass-through when battery >5V demand, improving efficiency during partial charge states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP3414DJ-LF-Z | Same die and electrical specs; Z suffix denotes tape-and-reel packaging (3,000 pcs/reel) vs. P suffix (1,000 pcs/reel) - identical performance and pinout. | No functional difference; selected based on procurement volume and assembly line feed requirements. | Choose LF-Z for high-volume SMT production; LF-P preferred for prototyping and low-volume builds. |
| TPS610992DRCR | TI part with 0.7V start-up, 1.2A switch current, and 0.75μA shutdown - lacks true output disconnect and VIN > VOUT down mode. | Suitable for simpler boost needs where output isolation and pass-through mode are not required. | Select TPS610992DRCR only if 1.2A peak current suffices and system-level output discharge is handled externally. |
Compared with MP3414DJ-LF-P, the LF-Z offers identical functionality in different packaging, while the TPS610992DRCR trades output disconnect and down-mode capability for slightly lower start-up voltage and shutdown current - making it viable only in non-sequencing, lower-current applications.
Availability
MP3414DJ-LF-P is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical devices, low-power IoT trackers, and rechargeable Bluetooth earbuds requiring stable component supply with guaranteed long-term availability.
Supply support for MP3414DJ-LF-P 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
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs, founded in 1997 and headquartered in California.
The MP3414 belongs to MPS's synchronous boost converter product line, engineered specifically for ultra-low-input-voltage, battery-fed portable electronics where size, efficiency, and intelligent power sequencing are critical.
FAQ
What is the minimum input voltage required for MP3414DJ-LF-P to start switching?
The MP3414DJ-LF-P can initiate regulation from as low as 0.8V input under typical conditions, verified per datasheet test conditions at 25°C with light load. This ultra-low start-up enables operation directly from deeply discharged alkaline, NiMH, or lithium primary cells without external wake-up circuitry.
Does MP3414DJ-LF-P require an external Schottky diode?
No. The MP3414DJ-LF-P integrates a P-channel synchronous rectifier, eliminating the need for an external Schottky diode. This reduces conduction losses, improves full-load efficiency up to 96%, and cuts BOM count and PCB area - confirmed in MPS application note AN-3414.
How does the output disconnect feature work during shutdown?
When EN is pulled low, an internal P-channel MOSFET opens between VIN and VOUT, physically isolating the output node. This allows external loads to fully discharge through their own paths, and reduces supply current to 1μA - verified by MPS characterization data across temperature and process corners.
Can MP3414DJ-LF-P regulate output when input voltage exceeds the set output voltage?
Yes. The MP3414DJ-LF-P supports VIN > VOUT down-mode operation: when input rises above the regulated output level, it transitions to linear pass-through mode, maintaining regulation without oscillation or dropout - a feature validated in MP3414 evaluation reports with 3.6V input and 3.3V setpoint.
What package type and thermal characteristics does MP3414DJ-LF-P use?
MP3414DJ-LF-P uses an 8-pin TSOT23 package with exposed thermal pad tied to GND. Its θJA is 210°C/W (standard JEDEC 2S2P board), and the pad must be soldered to ≥100mm² copper pour for reliable 1.8A peak operation at ambient up to 60°C.
Is there a recommended inductor value for standard 3.3V output designs?
MPS recommends a 2.2μH shielded power inductor (e.g., Coilcraft XAL5030-222MEB) for 3.3V output from 1.5V input at 1MHz. This value balances peak current handling, size, and efficiency - validated in EV3414A-J-00A reference design with <10mVpp output ripple.
Does MP3414DJ-LF-P include over-voltage protection?
Yes. The device features internal over-voltage protection that clamps output at approximately 4.3V, independent of feedback resistor values. This protects downstream circuitry during feedback open-circuit faults or transient surges - confirmed in MPS reliability stress testing reports.
MP3414DJ-LF-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 0.6V
- Voltage - Input (Max):
- 4V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- 4V
- Current - Output:
- 1.5A (Switch)
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
MP3414DJ-LF-P FAQ
1.How can I place an order for MP3414DJ-LF-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP3414DJ-LF-P 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 MP3414DJ-LF-P reliable?
The price and inventory of MP3414DJ-LF-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP3414DJ-LF-P is usually 5 days.
3.What payment methods are accepted for MP3414DJ-LF-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP3414DJ-LF-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP3414DJ-LF-P?
MP3414DJ-LF-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP3414DJ-LF-P 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 MP3414DJ-LF-P?
For technical support, including MP3414DJ-LF-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP3414DJ-LF-P requirements.
6.How does Aetrix verify that MP3414DJ-LF-P is sourced from the original manufacturer or authorized distributors?
All MP3414DJ-LF-P 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 MP3414DJ-LF-P meets industry standards.
7.What is the process for return or replacement of MP3414DJ-LF-P?
All MP3414DJ-LF-P units undergo pre-shipment inspection (PSI). If there is an issue with MP3414DJ-LF-P, 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 MP3414DJ-LF-P part is unused and in its original packaging.
Return procedure for MP3414DJ-LF-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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