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Monolithic Power Systems Inc. MP2141NGTF-P
- Part No.:
- MP2141NGTF-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-563, SOT-666
- Datasheet:
-
MP2141NGTF-P.pdf
- Description:
- IC REG BUCK ADJ 1A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:1,868
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Product details
Overview
MP2141NGTF-P from Monolithic Power Systems is a synchronous step-down DC/DC converter with integrated 120mΩ P-channel and 80mΩ N-channel MOSFETs, delivering up to 1A continuous output current across a 2.3V–5.5V input range while regulating output down to 0.6V. It features constant-on-time control, 11μA quiescent current, and operates in SOT563 package for space-constrained portable power rails.
For engineers reviewing the MP2141NGTF-P datasheet, MP2141NGTF-P pinout, MP2141NGTF-P application, or MP2141NGTF-P equivalent, key selection criteria include ultra-low IQ for battery longevity, 2.2MHz switching frequency for compact filter design, EN-controlled sequencing, output discharge capability, and thermal/short-circuit protection with hiccup recovery.
Technical Context
The MP2141NGTF-P uses constant-on-time (COT) control with input voltage feed-forward to maintain stable switching frequency across input and load variations. Its internal high-side P-MOSFET and low-side N-MOSFET enable synchronous rectification without external diodes.
Sleep mode engages at light loads by disabling non-essential blocks while retaining error amplifier and PWM comparator operation, reducing supply current to 11μA. Zero-current detection (ZCD) ensures discontinuous conduction mode (DCM) during light-load operation, improving efficiency and minimizing output ripple.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3V to 5.5V - supports single-cell Li-ion, Li-polymer, and multi-cell alkaline/NiMH battery inputs. |
| Output Current | Up to 1A continuous - sufficient for powering core logic, RF transceivers, or sensor subsystems in portable devices. |
| Quiescent Current | 11μA - enables >1-year battery life in always-on IoT sensors with 200mAh coin cells. |
| Switching Frequency | 2.2MHz typical - allows use of sub-2mm × 2mm inductors and reduces EMI filtering footprint. |
| Feedback Reference | 600mV ±6mV - sets precise output regulation via external resistor divider; supports adjustable outputs from 0.6V. |
| MOSFET RDS(on) | P-FET: 120mΩ / N-FET: 80mΩ - minimizes conduction loss at 1A, enabling >90% peak efficiency at mid-load. |
| Protection Features | Cycle-by-cycle current limiting, thermal shutdown (160°C), short-circuit hiccup mode - prevents damage during fault conditions without external circuitry. |
Pinout & Package
SOT563 package: 1.6mm × 1.6mm × 0.55mm body, 6-pin ultra-small outline with exposed pad for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 FB/PG | Feedback input / Power Good output | FB: Sets output voltage via resistor divider; PG: Open-drain indicator (fixed versions only) signals VOUT within ±5% regulation window. |
| 2 GND | Power ground reference | Primary return path for VIN, SW, and OUT currents; must be connected to low-impedance PCB ground plane. |
| 3 VIN | Main input supply rail | Accepts 2.3V–5.5V unregulated input; requires local 10μF ceramic decoupling capacitor placed adjacent to pin. |
| 4 SW | Switch node | Drain of internal high-side P-MOSFET; connects directly to inductor; high dv/dt node requiring tight layout and isolation from sensitive analog traces. |
| 5 EN | Enable control input | Active-high logic input (1.2V threshold); internal 1MΩ pulldown allows floating-disable; initiates soft-start on assertion. |
| 6 OUT | Regulated output power rail | Delivers regulated VOUT to load; includes internal discharge FET activated during shutdown to rapidly deplete output capacitance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 11μA enables >10-year shelf life in battery-backed real-time clocks and energy-harvesting nodes. |
| Integrated power MOSFETs | 120mΩ P-FET + 80mΩ N-FET eliminates external switch losses and simplifies BOM for compact point-of-load designs. |
| Output discharge function | Internal discharge FET pulls VOUT to GND during shutdown, preventing back-powering of upstream circuitry or latch-up in multi-rail systems. |
| Constant-on-time control | Enables <10μs load transient response without external compensation components, ideal for burst-mode DSP or MCU core supplies. |
| 2.2MHz fixed-frequency operation | Permits use of 1μH shielded inductors under 2mm² footprint, reducing solution size by >40% vs. 500kHz converters. |
Applications
| Wireless Networking Cards | Portable Medical Sensors |
|---|---|
Use Scenario: Powering 2.4GHz/5GHz Wi-Fi/BT SoCs on mini-PCIe or M.2 modules with tight thermal and area constraints. IC Role / Device Role / Timing Role: Primary buck regulator supplying 1.2V core and 3.3V I/O rails from single 3.7V Li-ion cell. Use Value: 2.2MHz switching avoids interference with WLAN bands; 11μA IQ extends standby time between firmware updates. | Use Scenario: Regulating power for wearable ECG/PPG sensors operating continuously on coin-cell batteries. IC Role / Device Role / Timing Role: Always-on 1.8V supply for ultra-low-power microcontroller and analog front-end. Use Value: Sleep-mode IQ of 11μA enables >2-year runtime on CR2032; output discharge prevents sensor bias drift during sleep transitions. |
| Industrial Handheld Terminals | Low-Voltage FPGA I/O Banks |
Use Scenario: Providing 1.2V core and 1.8V memory rails in ruggedized barcode scanners with wide ambient temperature range (-40°C to +85°C). IC Role / Device Role / Timing Role: Main system PMIC stage converting 5V USB or 3.7V battery to multiple low-voltage rails. Use Value: Thermal shutdown (160°C) and hiccup-mode SCP ensure reliability in sealed enclosures; SOT563 withstands reflow and mechanical shock. | Use Scenario: Supplying configurable 1.2V/1.5V/1.8V I/O banks for Xilinx Artix-7 or Intel MAX 10 FPGAs in space-limited edge AI modules. IC Role / Device Role / Timing Role: Adjustable-output buck converter supporting dynamic I/O voltage scaling via external resistor network. Use Value: 0.6V feedback reference enables precise VIO setting; 1A output supports up to 8 parallel I/O banks with margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TPS62231DRYR | 1.8V fixed output only; 2.25MHz switching; 17μA IQ; no output discharge. | Lacks adjustable output and discharge function; requires external discharge circuit for safe shutdown. | Select when fixed 1.8V output suffices and board space permits discrete discharge FET. |
| Analog Devices ADP5062ACBZ-1-R7 | 1.2V fixed output; 2.5MHz; 25μA IQ; integrated LDO post-regulator. | Higher IQ and fixed VOUT limit flexibility; LDO adds noise rejection but reduces efficiency. | Choose when ultra-low output ripple (<10mV p-p) is prioritized over efficiency and adjustability. |
Compared with TPS62231DRYR and ADP5062ACBZ-1-R7, MP2141NGTF-P offers adjustable output voltage, output discharge, and lowest quiescent current-making it optimal for battery-powered systems requiring programmable rail voltages and controlled power-down sequencing.
Availability
MP2141NGTF-P is available at Aetrix Electronics and suitable for wireless networking cards, portable medical sensors, and industrial handheld terminals requiring stable component supply with long-term manufacturability and RoHS-compliant packaging.
Supply support for MP2141NGTF-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 analog and power ICs, with over two decades of expertise in DC/DC conversion, motor drivers, and LED lighting controllers.
The MP2141N product line targets ultra-low-power, space-constrained portable and IoT applications where minimal quiescent current, small footprint, and robust protection are critical for battery longevity and system reliability.
FAQ
What is the minimum output voltage achievable with MP2141NGTF-P?
The MP2141NGTF-P supports output voltages as low as 0.6V, set by the internal 600mV feedback reference and an external resistor divider. This enables direct powering of modern ultra-low-voltage cores such as ARM Cortex-M0+ or RISC-V processors requiring sub-1V supplies.
Does MP2141NGTF-P require external compensation components?
No. The constant-on-time (COT) control architecture eliminates the need for external compensation networks. Stability is inherently achieved across input voltage and load ranges, simplifying design and reducing bill-of-materials cost.
How does the output discharge function operate during shutdown?
When the EN pin is pulled low, the internal discharge FET activates between OUT and GND, providing a ~1kΩ resistive path. This safely discharges output capacitors within milliseconds, preventing residual voltage from interfering with system reset or back-powering downstream logic.
Can MP2141NGTF-P operate with ceramic output capacitors only?
Yes. The device is optimized for low-ESR ceramic capacitors and remains stable with standard X5R/X7R types. A 10μF output capacitor is recommended; higher values improve ripple suppression but do not affect loop stability due to COT control.
What thermal performance can be expected in SOT563 package at 1A load?
In a standard 2-layer PCB layout, the SOT563 package delivers θJA = 130°C/W. At 1A output with 3.6V input and 1.2V output, power dissipation is ~250mW, resulting in ~32°C junction-to-ambient rise - well within the 125°C max operating junction temperature.
Is MP2141NGTF-P compatible with lead-free reflow soldering processes?
Yes. The SOT563 package is rated for JEDEC-standard lead-free reflow profiles, with a maximum peak temperature of 260°C. The device is fully RoHS-compliant, halogen-free, and qualified per JESD22-A110 reliability testing.
MP2141NGTF-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 1A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
MP2141NGTF-P FAQ
1.How can I place an order for MP2141NGTF-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2141NGTF-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 MP2141NGTF-P reliable?
The price and inventory of MP2141NGTF-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2141NGTF-P is usually 5 days.
3.What payment methods are accepted for MP2141NGTF-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2141NGTF-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2141NGTF-P?
MP2141NGTF-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2141NGTF-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 MP2141NGTF-P?
For technical support, including MP2141NGTF-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2141NGTF-P requirements.
6.How does Aetrix verify that MP2141NGTF-P is sourced from the original manufacturer or authorized distributors?
All MP2141NGTF-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 MP2141NGTF-P meets industry standards.
7.What is the process for return or replacement of MP2141NGTF-P?
All MP2141NGTF-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2141NGTF-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 MP2141NGTF-P part is unused and in its original packaging.
Return procedure for MP2141NGTF-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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