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

Monolithic Power Systems Inc. MP2332CGTL-P

Name: MP2332CGTL-P
Brand: Monolithic Power Systems Inc.
SKU: MP2332CGTL-P
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP2332CGTL-P

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: SOT-583

Datasheet:: MP2332CGTL-P.pdf

Description:: IC REG BUCK ADJ 2A SOT583

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Product details

Overview

MP2332CGTL-P from Monolithic Power Systems is a fully integrated, synchronous step-down DC/DC converter delivering 2A continuous output current with 4.2V–18V input range, 650kHz switching frequency, and forced CCM operation. It integrates 95mΩ/45mΩ high- and low-side MOSFETs, features power-good (PG) output, programmable soft-start, and operates in compact SOT583 package for space-constrained point-of-load regulation in digital consumer electronics.

For engineers reviewing the MP2332CGTL-P datasheet, MP2332CGTL-P pinout, MP2332CGTL-P application, or MP2332CGTL-P equivalent, key selection criteria include its COT control architecture for fast transient response, pre-bias start-up capability, thermal shutdown at 150°C, and PG threshold accuracy (±5% UV/OV windows relative to 805mV reference), critical for system power sequencing and fault reporting.

Technical Context

The MP2332CGTL-P employs constant-on-time (COT) control with input- and output-voltage-dependent on-timer to maintain stable 650kHz switching across 4.2–18V input and 0.8–13V output ranges. Its internal bootstrap circuit sustains high-side gate drive using a 1µF BST capacitor charged via SW node, with dedicated UVLO (2.2V rising) on the floating supply.

It operates exclusively in forced continuous conduction mode (CCM), eliminating mode transitions that cause audible noise or regulation instability. Valley-current sensing enables over-current protection with hiccup recovery, while the open-drain PG pin asserts low during EN/VIN UVLO, OCP, OTP, or FB voltage deviation beyond ±8% (UV) or +20% (OV) of VREF.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	4.2V to 18V - supports wide industrial and consumer input rails including 5V, 12V, and 18V systems without external LDO pre-regulation.
Output Current	2A continuous - delivers full rated load with ≤20°C case temperature rise at 12V_IN/3.3V_OUT on EV2332C-TL-00A board.
Switching Frequency	650kHz - enables use of small 2.2–4.7µH inductors and ceramic output capacitors while maintaining EMI below 1MHz fundamental.
Feedback Reference	805mV ±1.5% - sets precise output voltage via resistor divider; enables 1.0V to 13V outputs with <±1% line/load regulation.
Quiescent Current	200µA - minimizes standby power loss in always-on subsystems such as HDMI receivers or USB-C PD controllers.
Thermal Shutdown	150°C with 20°C hysteresis - protects against sustained overload or poor PCB thermal design; resumes operation only after die cools to ~130°C.
Power Good Threshold	UV: 92% V_REF, OV: 120% V_REF - provides accurate, glitch-free system enable signaling for FPGA/CPU power sequencing.

Pinout & Package

SOT583 (1.6mm × 2.1mm) thermally enhanced 8-pin package with exposed pad for improved heat dissipation; pin 1 marked by dot, top-side marking "BDG".

Pin/Terminal	Circuit Role	Design Meaning
1 (PG)	Open-drain power-good indicator	Pulled low during startup, fault, or regulation loss; requires external pull-up; asserts high only when V_FB is within 87–125% V_REF and soft-start complete.
2 (VIN)	Main input supply rail	Accepts 4.2–18V; must be decoupled with ≥10µF X5R/X7R ceramic placed adjacent to pin; wide trace required for peak 2.5A input current.
3 (SW)	Switch node	Connects to inductor and bootstrap network; high di/dt node requiring minimal loop area; drives both internal HS-FET and BST capacitor charging path.
4 (GND)	System ground reference	Primary return for power and feedback paths; must be connected to large copper pour with multiple vias to minimize noise coupling into FB/SS pins.
5 (BST)	Bootstrap supply for HS-FET gate driver	Requires 1µF ceramic capacitor between BST and SW; internal charge pump maintains >2.2V BST–SW voltage to ensure full HS-FET enhancement.
6 (EN)	Enable control input	Active-high logic; 1.23V typical turn-on threshold; internal 2.8V Zener clamp limits input current when pulled up to VIN via 604kΩ resistor.
7 (SS)	Soft-start timing control	7.3µA internal current source charges external capacitor; soft-start time = (C_SS × 2 × V_REF) / I_SS; prevents inrush into pre-biased loads.
8 (FB)	Feedback voltage sense	Monitors resistor divider output; 805mV reference sets V_OUT = 0.805 × (1 + R1/R2); high-impedance input (10–80nA bias) minimizes divider current loss.

Key Features

Feature	Design Value
Forced CCM operation	Eliminates discontinuous conduction mode at light loads, ensuring consistent 650kHz switching and predictable EMI spectrum for EMC compliance.
Pre-bias start-up	Allows safe ramp-up into existing output voltage (e.g., hot-swap or backup rail scenarios) without reverse current or latch-up risk.
Valley-current OCP with hiccup	Detects overcurrent during LS-FET conduction; enters periodic restart cycle instead of latching off, enabling self-recovery from temporary shorts.
Integrated 95mΩ/45mΩ MOSFETs	Reduces external component count and PCB area; achieves >90% efficiency at 1A load with 12V_IN/3.3V_OUT and 4.7µH inductor.
Programmable soft-start	External capacitor sets ramp time from milliseconds to tens of milliseconds, preventing overshoot and controlling inrush into large output capacitance banks.

Applications

Game Consoles

Digital Set-Top Boxes

Use Scenario: Regulating 1.2V core voltage for ARM-based SoCs in handheld gaming devices with tight thermal constraints.

IC Role / Device Role / Timing Role: Primary point-of-load buck converter providing tightly regulated, low-noise power with fast transient response to CPU DVFS events.

Use Value: COT control ensures <100µs recovery from 1A load steps, maintaining SoC stability during frame-rate spikes without external compensation.

Use Scenario: Generating 3.3V supply for HDMI PHY, tuner ICs, and flash memory in cable/satellite STBs operating from 12V wall adapter.

IC Role / Device Role / Timing Role: Secondary buck regulator delivering clean, sequenced power with PG signal enabling safe boot sequence initiation.

Use Value: PG accuracy (±5% window) guarantees reliable detection of valid 3.3V rail before releasing reset to media processor, preventing firmware corruption.

Flat-Panel Television

General Purpose Embedded Systems

Use Scenario: Powering 5V logic rails for TCON (timing controller) and local microcontrollers in LCD/LED TV main boards.

IC Role / Device Role / Timing Role: High-efficiency intermediate bus converter stepping down 12V or 18V panel supply to 5V with forced CCM for ripple-sensitive analog circuits.

Use Value: 650kHz fixed frequency avoids interference with video pixel clock harmonics; 200µA quiescent current reduces standby power below 1W.

Use Scenario: Providing 2.5V or 1.8V supply to FPGA I/O banks or sensor interface ASICs in industrial gateway designs.

IC Role / Device Role / Timing Role: Compact, robust DC/DC solution supporting wide-input industrial power supplies (e.g., 24V nominal with 18–32V range).

Use Value: 4.2–18V input range accommodates unregulated 12V or 24V inputs with minimal derating; SOT583 footprint fits dense PCB layouts near BGA packages.

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous buck converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MP2332GTL-Z	Same silicon, identical electrical specs, but uses standard SOT583 top marking "BDG" without "-P" suffix; RoHS-compliant, halogen-free, same thermal performance.	No functional difference; used interchangeably in production where part marking differentiation is not required for traceability.	Select MP2332GTL-Z for cost-sensitive volume builds where "-P" grade qualification (e.g., extended temp screening) is unnecessary.
RT7295BGJ8F	600kHz COT buck, 2A, 4.5–18V input, but lacks PG pin and pre-bias start-up; uses different BST architecture requiring larger external capacitor.	Not suitable for systems requiring power sequencing or hot-plug operation; limited fault reporting capability due to missing PG output.	Choose only if PG signaling and pre-bias support are non-critical and board layout allows larger BST capacitor placement.

Compared with MP2332CGTL-P, MP2332GTL-Z offers identical performance at lower cost for standard applications, while RT7295BGJ8F trades away critical reliability features (PG, pre-bias) for marginally lower BOM count-making MP2332CGTL-P the preferred choice for sequenced, robust embedded power delivery.

Availability

MP2332CGTL-P is available at Aetrix Electronics and suitable for game consoles, digital set-top boxes, flat-panel television power supplies, and general-purpose embedded systems requiring stable component supply, long-term lifecycle assurance, and guaranteed RoHS/halogen-free compliance.

Supply support for MP2332CGTL-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 over two decades of expertise in DC/DC conversion, motor drivers, and LED lighting controllers.

The MP2332C product line targets space-constrained, efficiency-critical point-of-load applications in consumer electronics, delivering integrated synchronous buck solutions with COT control, robust protection, and ultra-small SOT583 packaging.

FAQ

What is the minimum recommended input capacitance for MP2332CGTL-P?

A minimum 10µF X5R/X7R ceramic capacitor is required at VIN, placed directly between pins 2 (VIN) and 4 (GND) with shortest possible trace length. For 12V input and 2A load, a 22µF/25V capacitor is recommended to limit input ripple to <100mV peak-to-peak and handle worst-case RMS current of ~1A.

Does MP2332CGTL-P support output voltages below 1.0V?

No. The device's feedback reference is fixed at 805mV, and the datasheet specifies a minimum output voltage of 0.8V. However, stable operation below 1.0V is not characterized or guaranteed-designs requiring sub-1V outputs (e.g., 0.9V) must validate regulation accuracy, load transient response, and thermal performance under actual conditions.

How is the soft-start time calculated for a given SS capacitor value?

Soft-start time (T_SS in ms) = (C_SS in nF × 2 × 0.805V) / I_SS, where I_SS = 7.3µA typical. For example, a 47nF capacitor yields T_SS ≈ (47 × 1.61) / 7.3 ≈ 10.4ms. This formula assumes ideal conditions; actual ramp time may vary ±15% due to V_REF tolerance and I_SS drift.

Can MP2332CGTL-P operate without an external bootstrap capacitor?

No. The BST pin requires a 1µF X5R/X7R ceramic capacitor connected between BST and SW. Omitting it disables the high-side MOSFET gate drive, causing immediate failure to regulate and potential damage due to shoot-through during startup. The internal bootstrap charger relies entirely on this external component.

What is the maximum allowable output capacitance for reliable soft-start?

The maximum output capacitance is constrained by soft-start current: C_{O_MAX} ≈ (I_{LIM_AVG} – I_OUT) × T_SS / V_OUT. With 2A load, 10ms soft-start, and average start-up current of ~2.5A, C_{O_MAX} ≈ 5000µF for 3.3V output. Exceeding this risks failure to reach regulation before soft-start ends.

Is MP2332CGTL-P qualified for automotive applications?

No. MP2332CGTL-P is specified for industrial temperature range (–40°C to +125°C junction), but it is not AEC-Q200 qualified, lacks automotive-specific stress testing, and does not carry automotive-grade part numbering or traceability. Use only in commercial/industrial systems.

How does the PG pin behave during thermal shutdown?

During thermal shutdown, the PG pin is actively pulled low within 50µs of junction temperature exceeding 150°C. It remains low until both thermal recovery (die cools to ~130°C) and output voltage re-enters the valid window (87–125% V_REF), ensuring downstream logic sees a definitive fault signal before resuming operation.

MP2332CGTL-P Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: MP

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):: 4.2V

Voltage - Input (Max):: 18V

Voltage - Output (Min/Fixed):: 0.8V

Voltage - Output (Max):: 13V

Current - Output:: 2A

Frequency - Switching:: 650kHz

Synchronous Rectifier:: Yes

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-583

MP2332CGTL-P FAQ

1.How can I place an order for MP2332CGTL-P through Aetrix?

Please submit a Request for Quotation (RFQ) for MP2332CGTL-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 MP2332CGTL-P reliable?

The price and inventory of MP2332CGTL-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2332CGTL-P is usually 5 days.

3.What payment methods are accepted for MP2332CGTL-P?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2332CGTL-P transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP2332CGTL-P?

MP2332CGTL-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP2332CGTL-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 MP2332CGTL-P?

For technical support, including MP2332CGTL-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2332CGTL-P requirements.

6.How does Aetrix verify that MP2332CGTL-P is sourced from the original manufacturer or authorized distributors?

All MP2332CGTL-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 MP2332CGTL-P meets industry standards.

7.What is the process for return or replacement of MP2332CGTL-P?

All MP2332CGTL-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2332CGTL-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 MP2332CGTL-P part is unused and in its original packaging.

Return procedure for MP2332CGTL-P:

1.Submit a request within 90 days.

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

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