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

Monolithic Power Systems Inc. MP2182GTL-P

Name: MP2182GTL-P
Brand: Monolithic Power Systems Inc.
SKU: MP2182GTL-P
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP2182GTL-P

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: SOT-583

Datasheet:: MP2182GTL-P.pdf

Description:: IC REG BUCK ADJ 2A SOT583

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MP2182GTL-P from Monolithic Power Systems is a monolithic synchronous step-down DC/DC converter with integrated 80mΩ P-channel and 40mΩ N-channel MOSFETs, delivering up to 2A continuous output current from a 2.5V–5.5V input while regulating output down to 0.6V. It employs constant-on-time (COT) control for fast transient response and includes power good (PG), external soft-start (SS), and hiccup-mode short-circuit protection - deployed in portable instrumentation and battery-powered I/O rail generation.

For engineers reviewing the MP2182GTL-P datasheet, MP2182GTL-P pinout, MP2182GTL-P application, or MP2182GTL-P equivalent, key selection criteria include its 1.2MHz switching frequency, 21μA quiescent current, 1% FB voltage accuracy, 100% duty cycle capability, and SOT583 package footprint compatibility with space-constrained mobile and wireless power designs.

Technical Context

The MP2182GTL-P uses input-voltage feed-forward COT control to maintain stable 1.2MHz switching across its 2.5V–5.5V input range while enabling sub-100ns minimum on/off times. Its AAM (Advanced Asynchronous Modulation) mode with ZCD detection ensures DCM operation at light load, reducing quiescent current to 21μA without compromising regulation.

Fault management integrates cycle-by-cycle current limiting (3.5A high-side peak), VO OVP (115% VFB threshold), thermal shutdown at 160°C, and automatic output discharge during disable - all coordinated via an internal bias generator and sleep-mode logic that scales gate drive and comparator currents under low-load conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	2.5V to 5.5V - supports single-cell Li-ion, USB, and wide-input portable power rails.
Output Current	2A continuous - sufficient for powering DSP cores, RF transceivers, or multi-rail PMIC subsystems.
Switching Frequency	1.2MHz - enables compact 1µH inductors and reduces EMI filtering burden in dense PCB layouts.
Quiescent Current	21μA - extends battery life in always-on sensor nodes and standby modes of portable instruments.
Feedback Accuracy	±1% at 25°C - ensures tight output regulation for low-voltage I/O domains (e.g., 1.2V, 1.8V, 3.3V).
Power Good Threshold	90% VFB rising / 85% VFB falling - provides clean, hysteresis-controlled system reset signaling.
MOSFET R_DS(ON)	80mΩ (HS) / 40mΩ (LS) - minimizes conduction loss and thermal rise at full 2A load.

Pinout & Package

The MP2182GTL-P is housed in an ultra-small 1.6mm × 2.1mm SOT583 package with 0.4mm pitch and exposed thermal pad (pin 4 GND). Its 8-pin configuration supports minimal external component count and high-density layout in handheld and wearable applications.

Pin/Terminal	Circuit Role	Design Meaning
1 PG	Open-drain power good indicator	Signals valid regulation via external pull-up; sinks ≤0.4V @ 1mA for MCU reset assertion.
2 VIN	Main input supply	Accepts 2.5V–5.5V unregulated source; requires local 10µF ceramic decoupling.
3 SW	Switch node	Drain of internal P-MOSFET; connects directly to inductor; high dv/dt node requiring tight routing.
4 GND	Power and signal ground	Thermal pad connection point; must be solidly tied to PCB ground plane for thermal and noise control.
5 EN	Enable control	Active-high logic input (1.2V threshold); internal 2MΩ pulldown enables default disable.
6 SS	Soft-start timing	Charged by 3µA internal current; capacitor value sets controlled VOUT ramp rate to prevent inrush.
7 OUT	Output power rail	Delivers regulated voltage to load; also serves as output sense return path for discharge FET.
8 FB	Feedback reference	Senses resistor divider ratio; 600mV nominal reference enables precise VOUT programming from 0.6V.

Key Features

Feature	Design Value
Constant-On-Time (COT) Control	Enables <10µs load transient recovery without external compensation components.
External Soft-Start (SS)	Capacitor-programmable startup slew rate prevents overshoot and inrush into large output caps.
Output Discharge Function	Internal FET actively discharges VOUT when disabled - eliminates hold-up voltage in sequencing systems.
Hiccup-Mode Short-Circuit Protection	Shuts down, discharges SS cap, then retries - protects against sustained shorts without thermal runaway.
100% Duty Cycle Capability	Allows VOUT ≈ VIN operation - critical for low-dropout scenarios like USB-to-3.3V conversion.

Applications

Wireless Networking Cards

Portable Instruments

Use Scenario: Powering 2.4GHz/5GHz RF front-end ICs and baseband processors in mini-PCIe Wi-Fi modules.

IC Role / Device Role / Timing Role: Primary buck regulator generating stable 1.2V core and 3.3V I/O rails from single 3.6V Li-ion cell.

Use Value: 1.2MHz switching avoids interference with 2.4GHz ISM band; 21μA IQ extends runtime between recharges.

Use Scenario: Supplying precision analog front-ends and microcontrollers in handheld multimeters and data loggers.

IC Role / Device Role / Timing Role: Low-noise, tightly regulated 1.8V rail for ADC reference and 3.3V rail for display interface.

Use Value: ±1% FB accuracy maintains measurement integrity; output discharge ensures safe power-down sequencing.

Battery-Powered Devices

Low-Voltage I/O System Power

Use Scenario: Power management in Bluetooth LE earbuds and smart wearables with constrained board area.

IC Role / Device Role / Timing Role: Compact 2A buck converting 4.2V max battery voltage to 1.1V processor core rail.

Use Value: SOT583 footprint (1.6×2.1mm) saves >40% board space vs. comparable SO-8 solutions.

Use Scenario: Generating multiple low-voltage rails (e.g., 0.9V, 1.2V, 1.8V) for FPGA I/O banks and memory interfaces.

IC Role / Device Role / Timing Role: Secondary buck stage following primary PMIC, providing isolated, low-ripple domain supplies.

Use Value: 80mΩ/40mΩ MOSFETs reduce conduction loss at 2A, improving thermal margin in stacked PCB assemblies.

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	Fixed 3.3V output; no adjustable FB; 1.5A rating; QFN-10 package	Lacks programmability and 2A capability - suitable only for fixed-rail, lower-current use cases	Select only if output voltage is fixed and load ≤1.5A; no soft-start or PG pin.
TPS6286518RTER	1.8V fixed output; 4A rating; 2.5V–5.5V input; 2.5MHz fSW; WSON-10	Higher current and frequency but no external SS or PG; optimized for ultra-thin devices	Prefer for higher-power, space-constrained apps where fixed 1.8V suffices and PG signaling is unnecessary.

Compared with RT6220AGQW and TPS6286518RTER, the MP2182GTL-P uniquely balances adjustability (0.6V–5.5V), 2A capability, PG/SS pins, and ultra-compact SOT583 packaging - making it optimal for multi-rail, battery-fed portable systems requiring design flexibility and sequencing control.

Availability

MP2182GTL-P is available at Aetrix Electronics and suitable for wireless networking cards, portable instrumentation, and battery-powered devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MP2182GTL-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 distribution through authorized partners.

The MP2182 belongs to MPS's high-efficiency, low-IQ DC/DC converter product line, engineered specifically for space- and power-constrained portable electronics where thermal performance, small footprint, and precise voltage regulation are critical.

FAQ

What is the minimum recommended output capacitor for stable operation?

A 22µF X5R/X7R ceramic capacitor is recommended for most applications, especially at 1.2V output. The device's COT architecture benefits from low-ESR ceramics to maintain loop stability; using less than 10µF may cause ringing or poor transient response under 2A load steps.

Does MP2182GTL-P support forced PWM mode, or is it strictly auto-mode?

The MP2182GTL-P operates exclusively in automatic mode - combining CCM, DCM (via AAM + ZCD), and sleep mode based on load. It does not offer a forced PWM pin or register control; modulation is fully autonomous to optimize efficiency across 10µA–2A loads.

How is power good (PG) asserted, and what external components are required?

PG is an open-drain output requiring an external pull-up resistor (100kΩ–500kΩ) to VIN or VOUT. It asserts high when FB reaches ≥90% of target voltage and deasserts low at ≤85%; internal R_DS(ON) is <400Ω, supporting 1mA sink capability for direct MCU interrupt or reset input.

Can MP2182GTL-P operate with input voltage below 2.5V?

No - the absolute minimum operating input is 2.5V per datasheet specifications. Below this, UVLO disables the part. The under-voltage lockout rising threshold is 2.45V typical, with 200mV hysteresis, preventing erratic startup near brown-out conditions.

What thermal derating applies above 25°C ambient?

With θ_JA = 58°C/W on a 2-layer EVB, maximum continuous power dissipation drops linearly: at 60°C ambient, PD_MAX = (150°C − 60°C) / 58°C/W ≈ 1.55W. At 2A load and 3.6V input, typical power loss is ~0.35W - well within derated limits up to 105°C ambient.

Is the SOT583 package lead-free and RoHS-compliant?

Yes - MP2182GTL-P is fully RoHS-compliant and lead-free per EU Directive 2011/65/EU. MPS confirms green status on its official quality assurance portal, with JEDEC-standard MSL-3 moisture sensitivity and 260°C reflow profile compatibility.

MP2182GTL-P Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: SOT-583

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: -

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:: 2A

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

MP2182GTL-P FAQ

1.How can I place an order for MP2182GTL-P through Aetrix?

Please submit a Request for Quotation (RFQ) for MP2182GTL-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 MP2182GTL-P reliable?

The price and inventory of MP2182GTL-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2182GTL-P is usually 5 days.

3.What payment methods are accepted for MP2182GTL-P?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2182GTL-P transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP2182GTL-P?

MP2182GTL-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP2182GTL-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 MP2182GTL-P?

For technical support, including MP2182GTL-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2182GTL-P requirements.

6.How does Aetrix verify that MP2182GTL-P is sourced from the original manufacturer or authorized distributors?

All MP2182GTL-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 MP2182GTL-P meets industry standards.

7.What is the process for return or replacement of MP2182GTL-P?

All MP2182GTL-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2182GTL-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 MP2182GTL-P part is unused and in its original packaging.

Return procedure for MP2182GTL-P:

1.Submit a request within 90 days.

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

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