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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Monolithic Power Systems Inc. MP2183CGTL-Z

Name: MP2183CGTL-Z
Brand: Monolithic Power Systems Inc.
SKU: MP2183CGTL-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP2183CGTL-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: SOT-583

Datasheet:: MP2183CGTL-Z.pdf

Description:: IC REG BUCK ADJ 3A SOT583

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Product details

Overview

MP2183CGTL-Z from Monolithic Power Systems is a synchronous step-down DC/DC converter IC with integrated 65mΩ P-channel and 35mΩ N-channel MOSFETs, delivering up to 3A continuous output current across a 2.5V–5.5V input range while regulating output down to 0.6V. It employs constant-on-time (COT) control for fast transient response and includes power good (PG), soft-start (SS), and forced PWM mode-ideal for powering low-voltage I/O rails in portable instruments and wireless networking cards.

For engineers reviewing the MP2183CGTL-Z datasheet, MP2183CGTL-Z pinout, MP2183CGTL-Z application, or MP2183CGTL-Z equivalent, key selection considerations include its SOT583 package footprint, 1.2MHz fixed switching frequency, 1% FB voltage accuracy, cycle-by-cycle current limiting, and thermal shutdown with 160°C trip point.

Technical Context

The MP2183CGTL-Z uses a constant-on-time (COT) control architecture with input voltage feed-forward to maintain stable 1.2MHz switching across input and load variations. Its internal high-side P-MOSFET and low-side N-MOSFET enable synchronous rectification, eliminating external diode losses.

It integrates fault protection including hiccup-mode short-circuit response, output over-voltage protection (115% V_FB threshold), and under-voltage lockout (2.45V rising threshold). The PG open-drain output requires an external pull-up resistor and asserts after V_FB exceeds 90% of regulation voltage with 80μs delay.

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 system rails without pre-regulation
Output Current	Up to 3A continuous - sufficient for FPGA I/O banks, DSP cores, and multi-function printer logic
Switching Frequency	1.2MHz - enables compact LC filter design with ≤1µH inductors and <22µF ceramic output capacitors
Feedback Accuracy	±1% at 25°C - ensures tight output regulation critical for low-voltage logic (e.g., 1.2V ±12mV)
MOSFET R_DS(on)	65mΩ (HS), 35mΩ (LS) - minimizes conduction loss and thermal rise at full 3A load
Soft-Start Control	External SS pin with 3µA charge current - allows precise ramp time tuning via capacitor (e.g., 2.2nF → ~1.3ms)
Power Good Threshold	90% V_FB rising / 85% V_FB falling - provides reliable sequencing signal for downstream processors
Thermal Shutdown	160°C with 30°C hysteresis - protects die during sustained overload or poor PCB heatsinking

Pinout & Package

SOT583 is an ultra-small, 8-pin, 1.6mm × 2.1mm, 0.5mm pitch package with exposed thermal pad for enhanced power dissipation (θ_JA = 58°C/W on 2-layer PCB).

Pin/Terminal	Circuit Role	Design Meaning
1 PG	Open-drain power good indicator	Asserts low when V_FB falls below 85% of target; requires 100kΩ–500kΩ external pull-up to VIN or VOUT
2 VIN	Main input supply	Accepts 2.5V–5.5V; must be decoupled with ≥10µF ceramic capacitor placed adjacent to pin
3 SW	Switch node	Connects to inductor; carries high di/dt; requires short, wide trace to minimize EMI and voltage spikes
4 GND	Power and signal ground	Primary return path for input/output currents; ties to thermal pad for heat transfer
5 EN	Enable control	Active-high logic (1.2V threshold); internal 2MΩ pulldown allows default-disable if left floating
6 SS	Soft-start timing	Charged at 3µA; sets output ramp rate-prevents inrush current into large output capacitance
7 OUT	Power output rail	Delivers regulated voltage; connects directly to load and output capacitor; senses output via FB divider
8 FB	Feedback input	Monitors resistive divider (R1/R2) from OUT to GND; 600mV reference enables adjustable output from 0.6V

Key Features

Feature	Design Value
Forced PWM operation	Maintains fixed 1.2MHz switching even at light loads-eliminates frequency variation and associated EMI spread
100% duty cycle capability	Enables dropout operation (e.g., 3.3V IN → 3.3V OUT), critical for post-regulation in low-headroom systems
Output discharge function	Internal MOSFET actively discharges VOUT when EN = low-ensures safe power-down in hot-swap or sequencing applications
Short-circuit protection with hiccup mode	Enters 800ns recovery cycles upon current limit detection-limits average power dissipation during sustained fault
VO OVP with dynamic regulation	Engages low-side FET to sink current when V_FB > 115%, preventing damage to downstream 1.2V/1.8V logic
Ultra-small SOT583 package	1.6mm × 2.1mm footprint saves >40% board area vs. MSOP-8-enables dense portable and wearable designs

Applications

Wireless Networking Cards

Portable Instruments

Use Scenario: Powering 1.2V RF transceiver baseband logic and 1.8V memory interface on PCIe Mini Card form factor.

IC Role / Device Role / Timing Role: Primary buck regulator supplying clean, sequenced power to SoC subsystems with PG-driven enable timing.

Use Value: 1.2MHz switching avoids interference with 2.4GHz/5GHz bands; forced PWM ensures consistent EMI profile during sleep/wake transitions.

Use Scenario: Generating 3.3V analog front-end supply and 1.2V microcontroller core voltage in handheld multimeters and oscilloscopes.

IC Role / Device Role / Timing Role: Dual-output capable via parallel configuration; SS pin enables controlled startup to prevent ADC reference disturbance.

Use Value: 1% FB accuracy maintains measurement precision; output discharge prevents residual voltage from corrupting next measurement cycle.

Low-Voltage I/O System Power

Multi-Function Printers

Use Scenario: Delivering 0.9V/1.2V/1.8V rails to FPGA I/O banks, SerDes interfaces, and DDR termination networks.

IC Role / Device Role / Timing Role: Point-of-load regulator with independent EN/PG pins enabling per-rail power sequencing per Xilinx/Intel specs.

Use Value: COT control delivers <50µs load transient recovery-critical for burst-mode data transfers without supply droop.

Use Scenario: Supplying 5V logic, 3.3V sensors, and 1.2V imaging processor cores in compact all-in-one printer platforms.

IC Role / Device Role / Timing Role: Main system PMIC buck stage; PG signal coordinates firmware boot with motor driver initialization.

Use Value: Thermal shutdown + hiccup mode prevents latch-up during paper jam-induced motor stall current surges.

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
MP2183GQUT-Z	Same silicon, QFN-8 (2mm × 2mm) package with wettable flanks; θ_JA = 45°C/W (4-layer PCB)	Better thermal performance and automated optical inspection (AOI) compatibility; larger footprint than SOT583	Select when board space allows and thermal margin is constrained below 65°C ambient
TI TPS62865ARGTR	1.8V–5.5V input, 4A output, 2.5MHz switching, 0.5% FB accuracy; no PG or SS pin	Lacks power good and soft-start control; higher frequency demands tighter layout but reduces inductor size	Choose for higher efficiency at light loads (PFM mode) where sequencing signals are handled externally

Compared with MP2183GQUT-Z, the MP2183CGTL-Z trades thermal headroom for minimal footprint-ideal for ultra-thin portable devices. Against TPS62865ARGTR, it offers integrated sequencing features at lower switching frequency, simplifying EMI filtering and reducing bill-of-materials count.

Availability

MP2183CGTL-Z is available at Aetrix Electronics and suitable for wireless networking cards, portable instruments, low-voltage I/O system power, and multi-function printers requiring stable component supply across production lifecycles.

Supply support for MP2183CGTL-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 over two decades of innovation in DC/DC converters, LED drivers, and motor controllers.

The MP2183C product line targets space-constrained, battery-powered applications demanding high efficiency, small solution size, and robust protection-designed specifically for portable, wireless, and instrumentation markets.

FAQ

What is the minimum output voltage supported by the MP2183CGTL-Z?

The MP2183CGTL-Z supports output voltages as low as 0.6V, set by the internal 600mV feedback reference and external resistor divider. This enables direct regulation for modern low-voltage logic such as 0.8V FPGA cores or 0.9V microcontroller domains when configured with appropriate R1/R2 values.

Does the MP2183CGTL-Z require an external compensation network?

No. The MP2183CGTL-Z uses constant-on-time (COT) control with built-in voltage feed-forward, eliminating the need for external Type-II or Type-III compensation components. Stability is inherent across the full input/output range and load conditions, simplifying design and reducing BOM count.

How does the soft-start function behave during repeated enable/disable cycles?

Each EN high-to-low transition triggers automatic output discharge and SS capacitor reset. Upon next EN assertion, the SS pin recharges from 0V, ensuring consistent, controlled startup regardless of prior state-critical for systems requiring reliable power cycling without output overshoot.

Can the PG pin drive a microcontroller GPIO directly?

Yes. With a 100kΩ pull-up to 3.3V or 5V, the PG open-drain output sinks ≤1mA at 0.4V low-level, meeting standard CMOS input thresholds. Its 80μs delay and 5% hysteresis provide noise-immune sequencing signaling compatible with most MCU reset or enable inputs.

What is the maximum recommended PCB temperature rise for continuous 3A operation in SOT583?

At 3A load and 5V input, the MP2183CGTL-Z dissipates ~0.4W. With θ_JA = 58°C/W (2-layer PCB), this yields ~23°C rise above ambient. To maintain junction temperature ≤125°C, keep ambient ≤102°C-achievable with 1-in² copper pour and minimal airflow in typical portable enclosures.

Is the MP2183CGTL-Z RoHS and REACH compliant?

Yes. The MP2183CGTL-Z is lead-free, halogen-free, and fully compliant with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. MPS confirms green status on its official quality assurance portal, with full material declarations available upon request.

What failure modes trigger hiccup mode versus hard thermal shutdown?

Hiccup mode activates during over-current events (e.g., short circuit), cycling enable/disable every ~800μs until fault clears. Thermal shutdown occurs only when die temperature exceeds 160°C-triggering immediate shutdown with 30°C hysteresis before auto-restart. Both mechanisms are independent and simultaneously active.

MP2183CGTL-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

MP2183CGTL-Z FAQ

1.How can I place an order for MP2183CGTL-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MP2183CGTL-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 MP2183CGTL-Z reliable?

The price and inventory of MP2183CGTL-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2183CGTL-Z is usually 5 days.

3.What payment methods are accepted for MP2183CGTL-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2183CGTL-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP2183CGTL-Z?

MP2183CGTL-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP2183CGTL-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 MP2183CGTL-Z?

For technical support, including MP2183CGTL-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2183CGTL-Z requirements.

6.How does Aetrix verify that MP2183CGTL-Z is sourced from the original manufacturer or authorized distributors?

All MP2183CGTL-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 MP2183CGTL-Z meets industry standards.

7.What is the process for return or replacement of MP2183CGTL-Z?

All MP2183CGTL-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2183CGTL-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 MP2183CGTL-Z part is unused and in its original packaging.

Return procedure for MP2183CGTL-Z:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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