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Monolithic Power Systems Inc. MP3414DJ-LF-Z
- Part No.:
- MP3414DJ-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
MP3414DJ-LF-Z.pdf
- Description:
- IC REG BOOST ADJ 1.5A TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:3,680
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Product details
Overview
MP3414DJ-LF-Z from Monolithic Power Systems is a synchronous step-up DC-DC converter IC 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 fixed 1MHz switching frequency, and draws only 1μA in shutdown - enabling compact, high-efficiency boost solutions in space-constrained portable devices.
For engineers reviewing the MP3414DJ-LF-Z datasheet, MP3414DJ-LF-Z pinout, MP3414DJ-LF-Z application, or MP3414DJ-LF-Z equivalent, key selection criteria include its 0.6–4V input range, 1.8–4V output adjustability, integrated P-channel MOSFETs for synchronous rectification and output disconnect, current-mode control with internal compensation, and TSOT23-8 package constraints.
Technical Context
The MP3414DJ-LF-Z implements current-mode PWM control with internal compensation, eliminating external loop components. Its architecture integrates both power switches - an N-channel main switch and a P-channel synchronous rectifier - enabling bidirectional current blocking during shutdown and supporting VIN > VOUT down-mode operation.
It features inrush current limiting, over-voltage protection (OVP), and output short-circuit protection. The 1MHz fixed-frequency operation allows use of sub-2.2μH inductors and 10μF–22μF ceramic output capacitors, while soft-start prevents input voltage droop during startup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.6V to 4V - supports single-cell alkaline/NiMH (0.9–1.5V) and LiFePO₄ (up to 3.6V) without pre-bias start-up issues. |
| Output Voltage Range | 1.8V to 4V - adjustable via external resistor divider; sufficient to power 3.3V logic or white LED strings. |
| Switching Frequency | 1MHz fixed - enables use of small 1.0–2.2μH inductors and reduces EMI filter size. |
| Peak Switch Current | 1.8A typical - supports ≥500mA output at 3.3V from 1.2V input with >90% efficiency. |
| Quiescent Current | 35μA - maintains ultra-low standby power in always-on sensor nodes. |
| Shutdown Current | 1μA - ensures full output discharge and zero-load leakage in battery-off state. |
| Efficiency | Up to 96% - achieved at mid-load with optimized inductor DCR and low-Rds(on) internal FETs. |
Pinout & Package
MP3414DJ-LF-Z is housed in an 8-pin TSOT23 package (2.9mm × 1.6mm × 0.85mm, 0.65mm pitch), thermally enhanced with exposed pad for improved power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply rail | Accepts 0.6–4V; connects to battery or low-voltage source; requires local 4.7μF ceramic bypass. |
| GND | Power ground | Common reference for all circuitry; must be low-impedance connection to thermal pad. |
| SW | Switch node | Drives external inductor; carries high di/dt; requires tight layout to minimize EMI and ringing. |
| FB | Feedback input | Senses output voltage via resistor divider; sets regulated output with ±2% accuracy over temperature. |
| EN | Enable control | Active-high logic input; pulls to GND to enter 1μA shutdown; threshold is 0.4V (low) / 1.2V (high). |
| VOUT | Output power rail | Regulated boost output; disconnected from VIN during shutdown via internal PMOS switch. |
| PGND | Power ground return | Dedicated ground path for high-current switch node return; separates analog and power grounds. |
| EPAD | Thermal pad | Internally connected to GND; must be soldered to PCB copper for thermal and electrical performance. |
Key Features
| Feature | Design Value |
|---|---|
| True output disconnect | Internal PMOS fully isolates VOUT from VIN in shutdown, enabling safe discharge and zero hold-up voltage. |
| 0.8V startup capability | Operates from near-dead batteries (e.g., 0.9V AA), extending usable battery life in low-power IoT sensors. |
| Current-mode control + internal compensation | Eliminates external compensation network; provides stable transient response across 10μA–500mA load range. |
| Inrush current limiting & soft-start | Prevents input capacitor surge during power-on; limits peak inductor current to ≤1.8A during startup. |
| Integrated synchronous rectifier | P-channel MOSFET replaces Schottky diode, reducing conduction loss by ~150mV and improving light-load efficiency. |
Applications
| Wireless Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data every 5 minutes via BLE. IC Role / Device Role / Timing Role: Step-up regulator supplying stable 3.3V to MCU and radio from single AA cell (0.9–1.5V). Use Value: 35μA quiescent current extends battery life beyond 2 years; 0.8V startup ensures operation until battery reaches 0.9V. | Use Scenario: Handheld pulse oximeter using two AAA cells in series (1.8–3.0V) to power OLED display and analog front-end. IC Role / Device Role / Timing Role: Boost converter generating 3.3V rail with fast load transient response for display backlight bursts. Use Value: 1MHz switching and internal compensation enable <10ms recovery from 100mA load steps; OVP protects sensitive analog circuitry. |
| Low-Power IoT Tracker | Energy-Harvesting Edge Node |
Use Scenario: GPS-enabled asset tracker powered by coin-cell (1.8–2.2V) with periodic wake-up and transmission. IC Role / Device Role / Timing Role: Efficient boost stage delivering 3.3V to GNSS module and cellular modem during active burst mode. Use Value: 1.8A peak switch current supports 400mA pulsed loads; 1μA shutdown current minimizes self-discharge between reports. | Use Scenario: Solar-harvested energy storage system using supercapacitor (1.0–2.5V) to power microcontroller and RF transceiver. IC Role / Device Role / Timing Role: Wide-input boost converter maintaining regulated 3.3V as capacitor voltage decays from 2.5V to 1.0V. Use Value: 0.6V minimum input and VIN>VOUT down-mode operation allow continuous regulation even below output voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP3414E | Same topology and pinout; differs in EN threshold (0.4V/1.2V vs. 0.5V/1.4V) and slightly higher shutdown current (2μA). | Identical functional scope; suitable where tighter EN hysteresis or marginally lower shutdown IQ is acceptable. | Select MP3414E if sourcing legacy stock or requiring identical footprint with minor parametric tolerance. |
| TPS610992DRCR | Lower IQ (300nA shutdown), but max output 5.5V and no true output disconnect; uses external diode or NMOS for disconnect. | Lacks integrated output disconnect; requires additional component for full VOUT isolation and discharge. | Choose TPS610992 only when ultra-low shutdown IQ dominates design priority and output discharge is handled externally. |
Compared with MP3414E, the MP3414DJ-LF-Z offers tighter EN hysteresis and 1μA shutdown - critical for long-life battery systems. Versus TPS610992, it delivers integrated output disconnect and higher efficiency at 1.8–4V outputs, though with higher shutdown IQ than the TI part's nanoamp rating.
Availability
MP3414DJ-LF-Z is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, low-power IoT trackers, and energy-harvesting edge nodes requiring stable component supply with guaranteed long-term availability.
Supply support for MP3414DJ-LF-Z 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 product line targets ultra-low-voltage, high-efficiency boost conversion for battery- and energy-harvesting–powered edge devices, emphasizing minimal external components and robust protection features.
FAQ
What is the minimum input voltage required for MP3414DJ-LF-Z to start switching?
The MP3414DJ-LF-Z can initiate switching from as low as 0.8V input under typical conditions, verified per datasheet test conditions with 10μF input capacitance and room temperature. Startup is guaranteed down to 0.8V with proper input bypassing and load; operation continues down to 0.6V once running.
Does MP3414DJ-LF-Z support output voltages higher than 4V?
No - the internal feedback reference and power FET voltage ratings limit maximum regulated output to 4V. Attempting to set VOUT > 4V risks overvoltage damage to the internal P-channel disconnect switch and may trigger OVP shutdown.
Can MP3414DJ-LF-Z operate with input voltage greater than output voltage?
Yes - it supports VIN > VOUT "down-mode" operation. In this mode, the internal P-channel disconnect switch remains off, and the device regulates output by duty-cycle reduction, maintaining stability without reverse current flow.
Is an external Schottky diode required with MP3414DJ-LF-Z?
No - the device integrates a P-channel synchronous rectifier, eliminating the need for any external diode. Adding one would cause shoot-through risk and degrade efficiency due to forward voltage drop and reverse recovery.
How is thermal performance affected by the EPAD connection?
The exposed thermal pad (EPAD) is internally tied to GND and must be soldered to ≥100mm² of inner/outer layer copper with ≥4 thermal vias (0.3mm diameter) to achieve θJA ≈ 120°C/W. Omitting this degrades max continuous output current by up to 40% at ambient 60°C.
What protection features are built into MP3414DJ-LF-Z?
It includes over-voltage protection (OVP), output short-circuit protection, inrush current limiting, thermal shutdown, and undervoltage lockout (UVLO). All protections are internal and require no external components - OVP triggers at ~4.3V, and short-circuit recovery is automatic after fault removal.
Does MP3414DJ-LF-Z require external compensation components?
No - it uses current-mode control with fully internal compensation. No external RC network is needed; stability is guaranteed across the full 10μA–500mA load range with recommended 1.5μH inductor and 22μF ceramic output capacitor.
MP3414DJ-LF-Z 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-Z FAQ
1.How can I place an order for MP3414DJ-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP3414DJ-LF-Z 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-Z reliable?
The price and inventory of MP3414DJ-LF-Z 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-Z is usually 5 days.
3.What payment methods are accepted for MP3414DJ-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP3414DJ-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP3414DJ-LF-Z?
MP3414DJ-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP3414DJ-LF-Z 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-Z?
For technical support, including MP3414DJ-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP3414DJ-LF-Z requirements.
6.How does Aetrix verify that MP3414DJ-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP3414DJ-LF-Z 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-Z meets industry standards.
7.What is the process for return or replacement of MP3414DJ-LF-Z?
All MP3414DJ-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP3414DJ-LF-Z, 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-Z part is unused and in its original packaging.
Return procedure for MP3414DJ-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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