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Monolithic Power Systems Inc. MP2183GTL-Z
- Part No.:
- MP2183GTL-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-583
- Datasheet:
-
MP2183GTL-Z.pdf
- Description:
- IC REG BUCK ADJ 3A SOT583
- Quantity:
- Payment:
- Shipping:
Inventory:3,290
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Product details
Overview
MP2183GTL-Z from Monolithic Power Systems is a monolithic synchronous step-down DC/DC converter with integrated 65mΩ P-channel and 35mΩ N-channel MOSFETs, delivering up to 3A continuous output current from a 2.5V–5.5V input while regulating output down to 0.6V. It features constant-on-time control for fast transient response, 1.2MHz switching frequency, power-good (PG) open-drain indicator, and external soft-start (SS) control - deployed in portable instrumentation, battery-powered devices, and low-voltage I/O power rails.
For engineers reviewing the MP2183GTL-Z datasheet, MP2183GTL-Z pinout, MP2183GTL-Z application, or MP2183GTL-Z equivalent, key selection criteria include its SOT583 ultra-small package, 21μA quiescent current, 1% FB voltage accuracy, cycle-by-cycle current limiting, and thermal shutdown with 160°C trip point - all critical for space-constrained, high-efficiency, and thermally sensitive designs.
Technical Context
The MP2183GTL-Z employs constant-on-time (COT) control with input-voltage feed-forward to maintain stable 1.2MHz switching across its 2.5V–5.5V input range, enabling rapid load transient response without complex loop compensation. Its internal power stage integrates complementary PCH/NCH MOSFETs with RDS(ON) of 65mΩ/35mΩ, supporting 100% duty-cycle operation for minimum dropout.
It implements AAM (Advanced Asynchronous Modulation) and ZCD (Zero-Current Detection) to sustain DCM operation at light loads, reducing quiescent current to 21μA. Fault protection includes hiccup-mode short-circuit response, VO overvoltage protection (115% VFB threshold), and thermal shutdown with 30°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 5.5V - supports single-cell Li-ion, USB, and 3.3V/5V rail inputs without pre-regulation. |
| Output Current | Up to 3A continuous - sufficient for powering core logic, RF modules, or multi-rail PMIC subsystems. |
| Feedback Accuracy | ±1% at 25°C (594–606mV) - ensures tight output regulation critical for low-voltage digital ICs (e.g., 1.2V FPGA cores). |
| Quiescent Current | 21μA - enables >10-year battery life in always-on sensor nodes or IoT endpoints. |
| Switching Frequency | 1.2MHz - allows use of compact 1μH shielded inductors and reduces EMI filtering burden. |
| Power Good Threshold | 90% VFB rising / 85% VFB falling - provides clean, glitch-free system power sequencing with 80μs delay. |
| Thermal Shutdown | 160°C with 30°C hysteresis - protects against sustained overload or poor PCB thermal design without latch-up. |
Pinout & Package
SOT583 is an 8-pin, 1.6mm × 2.1mm ultra-compact, thermally enhanced package with exposed pad for improved heat dissipation. Pin 1 is marked by beveled corner; top marking "BEZ" identifies MP2183GTL.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 PG | Open-drain power-good indicator | Signals regulated output (VFB ≥ 90%) to host MCU; requires external 100kΩ–500kΩ pull-up to VOUT or VIN. |
| 2 VIN | Main input supply | Accepts 2.5V–5.5V unregulated input; decoupling capacitor must be placed adjacent to minimize high-frequency noise coupling. |
| 3 SW | Switching node | Drain of internal high-side P-MOSFET; connects directly to inductor; high dv/dt node requiring minimal trace area and distance from sensitive signals. |
| 4 GND | Power and signal ground | Primary return path for input/output currents and internal bias; must connect to thermal pad and external ground plane via multiple vias. |
| 5 EN | Enable control | Active-high logic input (1.2V threshold); internal 2MΩ pulldown allows default disable; controls startup sequencing and standby mode. |
| 6 SS | Soft-start timing | Connects to external capacitor (e.g., 2.2nF → ~6.6μs ramp); sets controlled VOUT slew rate to prevent inrush and overshoot. |
| 7 OUT | Output power rail & sense | Delivers regulated output; also serves as local sense point for output discharge MOSFET when EN = low. |
| 8 FB | Feedback voltage input | Monitors resistor divider (R1/R2) from VOUT to GND; 600mV reference enables precise output setting (e.g., 1.2V = R1/R2 = 1). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 21μA in active regulation - extends battery runtime in always-on wearable and remote sensor applications. |
| Integrated dual MOSFETs | 65mΩ PCH + 35mΩ NCH - eliminates external FETs and gate drivers, reducing BOM count and layout complexity. |
| External soft-start control | SS pin accepts capacitor to program start-up time - prevents input voltage sag and output overshoot during cold boot. |
| Output discharge function | Internal 150Ω discharge path activates automatically when EN = low - ensures safe, rapid VOUT decay for system reset or power cycling. |
| Power-good with hysteresis | 80μs delay, 5% hysteresis window - delivers reliable, noise-immune sequencing signal to processors and FPGAs. |
| Hiccup-mode short-circuit protection | Auto-retry soft-start after fault clearance - maintains system availability without manual reset in intermittent fault conditions. |
Applications
| Wireless Networking Cards | Portable Instruments |
|---|---|
Use Scenario: Powering 2.4GHz/5GHz Wi-Fi/BT SoCs and RF front-end modules on mini-PCIe or M.2 cards. IC Role / Device Role / Timing Role: Primary 1.2V/1.8V core and I/O regulator with fast load transient response to handle bursty packet transmission. Use Value: 1.2MHz switching enables small 1μH inductor; 3A capability supports concurrent CPU + radio operation without droop. |
Use Scenario: Supplying precision ADCs, microcontrollers, and LCD backlights in handheld multimeters and gas analyzers. IC Role / Device Role / Timing Role: Main system power rail with ultra-low IQ and accurate 1% VOUT regulation for measurement stability. Use Value: 21μA quiescent current extends alkaline battery life beyond 5 years in sleep mode; PG signal synchronizes data acquisition. |
| Battery-Powered Devices | Low-Voltage I/O System Power |
Use Scenario: Regulating 1.2V/1.8V rails for Bluetooth LE sensors, smart tags, and medical wearables operating from coin cells or LiPo. IC Role / Device Role / Timing Role: High-efficiency buck converter optimized for partial-load efficiency and thermal performance in sealed enclosures. Use Value: AAM+ZCD operation sustains >85% efficiency at 1mA load; SOT583 footprint saves PCB area in sub-20mm² designs. |
Use Scenario: Generating 0.8V–1.2V supplies for FPGA I/O banks, DDR termination, or ASIC auxiliary rails in embedded controllers. IC Role / Device Role / Timing Role: Precision adjustable output regulator with 0.6V reference and 1% FB accuracy for tight voltage margining. Use Value: External resistor divider enables flexible VOUT setting; 100% duty cycle supports low-dropout operation near battery end-of-life. |
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 |
|---|---|---|---|
| RT6220AGQW | 3A, 2.5V–5.5V input, 1.5MHz, 25μA IQ, no PG or SS pins | Lacks power-good and soft-start - requires external circuitry for sequencing and inrush control | Choose when board space permits discrete PG/SS implementation and higher switching frequency is preferred. |
| TPS6286413ARQYR | 3A, 2.7V–5.5V input, 2.25MHz, 18μA IQ, integrated PG but no SS pin | Higher minimum input voltage excludes 2.5V sources; fixed 1.3V VOUT unless reprogrammed via I²C | Prefer when using TI ecosystem tools and need higher frequency; avoid if 2.5V input or analog SS tuning is required. |
Compared with RT6220AGQW and TPS6286413ARQYR, the MP2183GTL-Z uniquely combines PG, SS, 2.5V minimum input, and 1.2MHz operation in SOT583 - making it optimal for compact, self-contained, and sequenced power systems where external components must be minimized.
Availability
MP2183GTL-Z is available at Aetrix Electronics and suitable for wireless networking cards, portable instrumentation, battery-powered devices, and low-voltage I/O system power requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MP2183GTL-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, with design centers in the US, China, and Taiwan, and global manufacturing partnerships.
The MP2183 belongs to MPS's high-efficiency, ultra-small-footprint DC/DC converter product line, engineered specifically for space-constrained, battery-sensitive, and thermally demanding applications in portable and embedded systems.
FAQ
What is the minimum input voltage supported by MP2183GTL-Z?
The MP2183GTL-Z operates down to 2.5V input, verified per absolute maximum ratings and electrical characteristics tables. Below this, UVLO disables the device; the rising threshold is 2.45V typical with 200mV hysteresis, ensuring reliable startup from single-cell Li-ion or 3.3V LDO outputs.
Does MP2183GTL-Z require an external bootstrap capacitor?
No. The MP2183GTL-Z uses an internal charge pump to drive the high-side P-channel MOSFET gate, eliminating the need for an external bootstrap capacitor or diode - simplifying layout and reducing component count compared to N-channel high-side solutions.
How does the output discharge function operate?
When EN is pulled low, the MP2183GTL-Z activates an internal 150Ω NMOS between OUT and GND, discharging the output capacitor. This occurs automatically without external circuitry and ensures VOUT falls rapidly (<1ms for 100μF), meeting safe power-down requirements in multi-rail systems.
Can MP2183GTL-Z be used in 100% duty-cycle applications?
Yes. The MP2183GTL-Z supports true 100% duty-cycle operation, allowing VOUT to approach VIN (e.g., 3.3V input → 3.3V output). This is enabled by its P-channel high-side switch architecture and is confirmed in the Electrical Characteristics table under "Maximum duty cycle".
What is the thermal resistance (θJA) of the SOT583 package under standard conditions?
On a 2-layer JEDEC board (EV2183-TL-00A), θJA is 58°C/W. On a 4-layer JESD51-7 board, it is 120°C/W. These values are measured per industry standards and reflect real-world PCB thermal performance - critical for calculating junction temperature rise under 3A load.
Is the PG pin compatible with 1.8V logic systems?
Yes. The PG pin is open-drain and can be pulled up to any voltage ≤ VIN (max 6.5V). When used with a 100kΩ resistor to 1.8V, it delivers valid logic-high/low levels compatible with 1.8V I/O, provided the sink current remains below 1mA (VPG-L ≤ 0.4V @ 1mA).
What failure protections are built into MP2183GTL-Z?
The MP2183GTL-Z integrates cycle-by-cycle current limiting, hiccup-mode short-circuit protection, thermal shutdown (160°C), input overvoltage lockout (6.1V), output overvoltage protection (115% VFB), and undervoltage lockout - all fully autonomous with no external components required.
MP2183GTL-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- SOT-583
- 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):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 3A
- Frequency - Switching:
- 1.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-583
MP2183GTL-Z FAQ
1.How can I place an order for MP2183GTL-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2183GTL-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 MP2183GTL-Z reliable?
The price and inventory of MP2183GTL-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2183GTL-Z is usually 5 days.
3.What payment methods are accepted for MP2183GTL-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2183GTL-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2183GTL-Z?
MP2183GTL-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2183GTL-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 MP2183GTL-Z?
For technical support, including MP2183GTL-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2183GTL-Z requirements.
6.How does Aetrix verify that MP2183GTL-Z is sourced from the original manufacturer or authorized distributors?
All MP2183GTL-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 MP2183GTL-Z meets industry standards.
7.What is the process for return or replacement of MP2183GTL-Z?
All MP2183GTL-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2183GTL-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 MP2183GTL-Z part is unused and in its original packaging.
Return procedure for MP2183GTL-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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