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Monolithic Power Systems Inc. MP2183CGTL-P
- Part No.:
- MP2183CGTL-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-583
- Datasheet:
-
MP2183CGTL-P.pdf
- Description:
- IC REG BUCK ADJ 3A SOT583
- Quantity:
- Payment:
- Shipping:
Inventory:480
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Product details
Overview
MP2183CGTL-P from Monolithic Power Systems is a synchronous step-down DC-DC converter IC with integrated 65mΩ high-side and 35mΩ low-side MOSFETs, delivering up to 3A continuous output current across a 2.5V–5.5V input range, regulating output down to 0.6V, and featuring forced PWM mode, power good (PG), soft-start (SS), and 1.2MHz switching frequency - deployed in portable instrumentation and low-voltage I/O power rails.
For engineers reviewing the MP2183CGTL-P datasheet, MP2183CGTL-P pinout, MP2183CGTL-P application, or MP2183CGTL-P equivalent, key selection criteria include COT control loop stability, 1% FB voltage accuracy, thermal shutdown at 160°C, hiccup-mode short-circuit protection, and SOT583 package compatibility with high-density PCB layouts.
Technical Context
The MP2183CGTL-P uses constant-on-time (COT) control with input voltage feed-forward to maintain stable 1.2MHz switching frequency across input and load variations, enabling fast transient response without external compensation. Its internal architecture integrates P-channel high-side and N-channel low-side MOSFETs with cycle-by-cycle current limiting and thermal shutdown.
Functional blocks include a 0.6V reference, open-drain PG output with 80μs delay and 90% rising threshold, EN-controlled sequencing with 2MΩ internal pull-down, and SS pin with 3μA charge current for externally adjustable soft-start timing - all operating over –40°C to +125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 5.5V - supports single-cell Li-ion, USB-powered, and dual-supply systems without external LDO pre-regulation. |
| Output Current | Up to 3A continuous - sustains full load under worst-case thermal conditions on 2-layer PCB with θJA = 58°C/W. |
| Feedback Accuracy | ±1% at TJ = 25°C (594–606mV) - ensures tight output regulation for sensitive DSP and FPGA core rails. |
| Switching Frequency | 1.2MHz fixed - enables use of compact 1μH shielded inductors and reduces EMI filtering burden. |
| MOSFET RDS(ON) | 65mΩ (HS) / 35mΩ (LS) at VIN = 5V - minimizes conduction loss and supports >90% peak efficiency at 1.2V/3A. |
| Power Good Threshold | 90% VFB rising / 85% VFB falling - provides clean, glitch-free system power sequencing with 80μs delay. |
| Soft-Start Control | External capacitor on SS pin (e.g., 2.2nF → ~1.3ms ramp) - prevents inrush current and output overshoot during startup. |
Pinout & Package
SOT583 (1.6mm × 2.1mm, 0.5mm pitch, 8-pin ultra-small footprint) with wettable flanks for automated optical inspection and high thermal performance (θJC = 13°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 PG | Open-drain power good indicator | Pulls low when VFB drops below 85% of target; requires external 100kΩ–500kΩ pull-up to VIN or VOUT. |
| 2 VIN | Main input supply | Accepts 2.5V–5.5V; requires local 10μF ceramic decoupling to suppress switching noise and input spikes. |
| 3 SW | Switching node | Connects to inductor; carries high di/dt; must be routed short and away from feedback traces to avoid coupling. |
| 4 GND | Power and signal ground | Common return for VIN, SW, FB, SS, EN, OUT, PG; requires solid thermal pad connection to PCB ground plane. |
| 5 EN | Enable control input | Active-high (≥1.2V); internal 2MΩ pull-down allows default-disable; enables precise power sequencing. |
| 6 SS | Soft-start timing control | Sinks 3μA current; external capacitor sets output voltage ramp time (e.g., 2.2nF → ~1.3ms 10–90%). |
| 7 OUT | Output power rail and sense point | Delivers regulated output; connects to load and output capacitor; used as local feedback reference point. |
| 8 FB | Feedback voltage input | Monitors resistor divider (R1/R2) to regulate output; 600mV reference enables 0.6V–5.5V programmable VOUT. |
Key Features
| Feature | Design Value |
|---|---|
| Forced PWM operation | Eliminates frequency variation and subharmonic oscillation in light-load conditions - critical for noise-sensitive RF and audio subsystems. |
| 100% duty cycle capability | Enables dropout operation (e.g., 3.3V IN → 3.3V OUT) without external bypass, simplifying power tree design. |
| Output discharge function | Activates internal 150Ω discharge FET upon EN deactivation - clears residual VOUT within milliseconds for safe hot-swap or state reset. |
| Hiccup-mode short-circuit protection | Shuts down, discharges SS capacitor, then retries startup - prevents thermal runaway and enables self-recovery without host intervention. |
| VIN OVP and VO OVP | Dual overvoltage protection: 6.1V absolute VIN clamp and 115% VFB-triggered dynamic regulation - safeguards downstream loads from fault propagation. |
Applications
| Wireless Networking Cards | Portable Instruments |
|---|---|
Use Scenario: Powering 2.4GHz/5GHz Wi-Fi/BT SoCs and RF front-end modules in compact M.2 and mini-PCIe cards. IC Role / Device Role / Timing Role: Primary buck regulator supplying 1.1V core and 3.3V I/O rails with forced PWM to suppress switching noise near RF receivers. Use Value: 1.2MHz switching avoids interference in 2.4GHz ISM band; SOT583 footprint saves >30% board area vs. QFN alternatives. |
Use Scenario: Providing stable 1.8V and 3.3V supplies for microcontroller-based handheld test equipment with battery and USB inputs. IC Role / Device Role / Timing Role: Main system PMIC delivering regulated power to ADCs, op-amps, and display drivers with tight load regulation (<±0.5%). Use Value: ±1% FB accuracy and COT control ensure <15mV output deviation across 0–3A load steps - critical for precision measurement accuracy. |
| Low-Voltage I/O System Power | Multi-Function Printers |
Use Scenario: Generating 0.9V–1.2V logic rails for FPGA configuration, PCIe SerDes, and DDR memory interfaces in embedded edge gateways. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter with PG signaling to coordinate FPGA configuration sequence and reset assertion. Use Value: PG output with 80μs delay enables deterministic power-up timing; 3A capacity supports burst-mode I/O activity without droop. |
Use Scenario: Supplying 5V and 3.3V rails to motor drivers, sensor arrays, and communication interfaces in compact all-in-one printer platforms. IC Role / Device Role / Timing Role: Secondary regulator feeding auxiliary subsystems with EN-controlled sequencing to manage inrush during wake-from-sleep transitions. Use Value: Soft-start programmability prevents 5V rail collapse during simultaneous activation of multiple stepper motors and sensors. |
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 |
|---|---|---|---|
| MP2163GJ-Z | SOT563 package (6-pin), 2A output, no PG or SS pins, 500kHz switching | Lacks power sequencing support and soft-start; suitable only for non-critical, low-current rails | Select when board space is extremely constrained and 2A/500kHz suffices; not drop-in due to pin count and feature gap. |
| TI TPS62865ARGTR | 2.5V–5.5V input, 4A output, 2.5MHz, integrated PG, but requires external soft-start capacitor and has 1.5% FB accuracy | Higher switching frequency enables smaller inductors but increases EMI risk near analog sections | Prefer for higher-current or faster-transient applications where 2.5MHz operation is acceptable and tighter layout control is available. |
Compared with MP2183CGTL-P, MP2163GJ-Z sacrifices PG, SS, and 3A capability for minimal footprint, while TPS62865ARGTR trades 0.5% FB accuracy and lower thermal robustness for higher current and frequency - making MP2183CGTL-P optimal for balanced performance in space-constrained, noise-sensitive 3A applications.
Availability
MP2183CGTL-P is available at Aetrix Electronics and suitable for wireless networking cards, portable instrumentation, low-voltage I/O system power, and multi-function printers requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MP2183CGTL-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, with design centers in the US, China, and Taiwan, and global manufacturing partnerships.
The MP2183C product line targets ultra-compact, high-efficiency DC-DC conversion for battery-powered and space-constrained applications - emphasizing integration, thermal resilience, and ease of layout in portable and embedded systems.
FAQ
What is the minimum output voltage achievable with MP2183CGTL-P?
The MP2183CGTL-P supports output voltages as low as 0.6V, set by the internal 0.6V feedback reference and an external resistor divider. This enables direct regulation for modern low-voltage cores such as ARM Cortex-A/M series and LPDDR4 I/O rails without additional post-regulation stages.
Does MP2183CGTL-P support automatic power sequencing with other ICs?
Yes - its EN pin accepts logic-level enable signals and its open-drain PG output can drive the EN pin of downstream regulators. With proper external pull-up and RC timing, it enables cascaded startup sequences (e.g., core rail before I/O rail) without external controllers.
How does the COT control scheme improve transient response compared to PWM?
COT eliminates the need for error amplifier compensation, reducing loop delay. Combined with input voltage feed-forward, it achieves sub-10μs load transient recovery (e.g., 0A→3A step) with <25mV undershoot - critical for powering burst-mode processors and high-speed ADCs.
Can MP2183CGTL-P operate with input voltage below 2.5V?
No - the absolute minimum input is 2.5V per datasheet specifications. Below this, UVLO disables operation. The under-voltage lockout rising threshold is 2.45V typical, with 350mV hysteresis, preventing oscillation near the limit.
What is the thermal performance of MP2183CGTL-P on a standard 2-layer PCB?
On a 2-layer JEDEC-standard EV2183C-TL-00A board, θJA is 58°C/W. At 3A output and 5V input, power dissipation is ~0.45W, resulting in ~26°C junction rise above ambient - well within the 125°C max operating junction temperature.
Is output capacitor ESR critical for stability with MP2183CGTL-P?
No - the COT control architecture is inherently stable with ceramic output capacitors (low ESR). Unlike voltage-mode controllers, it does not require ESR-based zero compensation, allowing use of X5R/X7R MLCCs without stability risk.
Does MP2183CGTL-P provide reverse current blocking during shutdown?
Yes - the integrated high-side P-MOSFET blocks reverse current flow from VOUT to VIN when EN is low or VIN drops below UVLO, preventing back-powering of upstream sources and protecting battery or USB ports.
MP2183CGTL-P 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
MP2183CGTL-P FAQ
1.How can I place an order for MP2183CGTL-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2183CGTL-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 MP2183CGTL-P reliable?
The price and inventory of MP2183CGTL-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2183CGTL-P is usually 5 days.
3.What payment methods are accepted for MP2183CGTL-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2183CGTL-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2183CGTL-P?
MP2183CGTL-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2183CGTL-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 MP2183CGTL-P?
For technical support, including MP2183CGTL-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2183CGTL-P requirements.
6.How does Aetrix verify that MP2183CGTL-P is sourced from the original manufacturer or authorized distributors?
All MP2183CGTL-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 MP2183CGTL-P meets industry standards.
7.What is the process for return or replacement of MP2183CGTL-P?
All MP2183CGTL-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2183CGTL-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 MP2183CGTL-P part is unused and in its original packaging.
Return procedure for MP2183CGTL-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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