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

Monolithic Power Systems Inc. MP4247GQV-0000-P

Name: MP4247GQV-0000-P
Brand: Monolithic Power Systems Inc.
SKU: MP4247GQV-0000-P
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP4247GQV-0000-P

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 20-PowerVFQFN

Datasheet:: MP4247GQV-0000-P.pdf

Description:: IC REG BUCK BST ADJ 5A DL 20QFN

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Product details

Overview

MP4247GQV-0000-P from Monolithic Power Systems is a 36V, 100W buck-boost DC/DC converter IC with two integrated low-side MOSFETs, I²C interface, and OTP memory. It delivers up to 5A output current with 1V–24V programmable V_OUT (±1% accuracy), supports USB PD 3.0 with PPS, and operates across 3.6V–36V input range. It is designed for USB Type-C power delivery systems requiring seamless buck/boost/buck-boost mode transitions.

For engineers reviewing the MP4247GQV-0000-P datasheet, MP4247GQV-0000-P pinout, MP4247GQV-0000-P application, or MP4247GQV-0000-P equivalent, this device offers configurable switching frequency (280/420/600 kHz), accurate ±5% CC current limit, integrated high-side gate drivers, line drop compensation, and real-time IMON current monitoring - all critical for robust USB PD source design.

Technical Context

The MP4247 implements a four-switch buck-boost topology with dedicated SWA/SWB/SWC/SWD control logic and automatic mode transition based on VIN/VOUT ratio. Its PLL-based oscillator ensures stable fixed-frequency operation across all modes, while the dual bootstrap regulators (BST1/BST2) independently drive high-side gates for buck (HG1) and boost (HG2) paths.

Internal architecture integrates an error amplifier with programmable reference (0.1V–2.147V via I²C), over-voltage protection with absolute and relative thresholds (23.5–27.5V OVP), thermal shutdown at 160°C, and hiccup-mode fault recovery. The IMON output provides voltage-proportional current sensing with 34–68 V/V gain depending on R_SENSE.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	3.6V to 36V startup; supports 2.8V falling VIN when VOUT > 3.5V - enables brownout resilience in automotive/USB PD adapters.
Output Voltage Range	1V to 24V with ±1% accuracy - covers full USB PD PPS profile (3.3–21V) and legacy 5V/9V/12V/15V/20V profiles.
Max Output Power	100W peak - achieved with external high-side MOSFETs and optimized thermal layout on QFN-20 package.
Switching Frequency	Selectable 280/420/600 kHz - balances EMI, efficiency, and inductor size; dithering ±15% reduces spectral peaks.
Current Limit Accuracy	±5% constant-current limit - enables precise USB PD current negotiation and cable loss compensation.
I²C Interface	Standard-mode (400 kHz) and fast-mode (1000 kHz) compatible - allows dynamic VOUT/VCC/CC configuration without hardware change.
Thermal Protection	160°C shutdown with 20°C hysteresis - prevents permanent damage during sustained overload or poor heatsinking.

Pinout & Package

MP4247GQV-0000-P is housed in a thermally enhanced QFN-20 (3mm × 5mm, 0.5mm pitch) package with exposed thermal pad. Pin 1 is located at top-left per standard JEDEC orientation; AGND and PGND pins are separately routed to minimize noise coupling between analog and power grounds.

Pin/Terminal	Circuit Role	Design Meaning
1 SCL	I²C clock input	Drives internal clock tree; requires pull-up to VCC; supports hot-plug detection via timing window.
2 SDA	I²C bidirectional data line	Open-drain; shares bus with other I²C peripherals; supports register read/write and OTP programming.
3 ALT	Alert output	Open-drain, active-low fault indicator (OVP/OCP/TSD); simplifies system-level fault reporting without polling.
4 FB	Voltage feedback node	Connects to resistor divider from VOUT; sets regulated output via internal 330mV reference (±3%).
5 ISEN− / 6 ISEN+	Differential current sense inputs	Measure voltage across external R_SENSE; enable ±5% CC limit and IMON output scaling.
7 VOUT	Output voltage sense	Provides bias for internal VCC LDO when VOUT > 6.4V; enables self-powered operation in boost mode.
8 BST2 / 19 BST1	Bootstrap supplies	Drive HG2/HG1 high-side gates; require 0.22µF ceramic capacitors with kelvin connection to SW2/SW1.
9 HG2 / 18 HG1	High-side gate drivers	Source/sink up to 3.3A peak; support external N-channel MOSFETs for buck (SWA) and boost (SWD) paths.
10 VCC	Internal 5V LDO output	Supplies internal logic; decoupled with 0.47–1µF capacitor; max load 50mA to maintain regulation.
11 AGND	Analog ground reference	Must be star-connected to PGND near VCC capacitor; isolates sensitive feedback and I²C circuits.
12,15 PGND	Power ground return	Low-impedance path for switch currents; requires wide copper pours and multiple vias to thermal pad.
13 SW2 / 14 SW1	Switch node connections	Connect to opposite ends of single inductor (L1); define buck-boost power path; handle high di/dt.
16 IMON	Current monitor output	Analog voltage proportional to I_OUT; gain selectable via R_SENSE (34–68 V/V); used for telemetry or loop compensation.
17 EN	Enable input	Active-high logic; 1.22V threshold with 200mV hysteresis; includes passive discharge path for safe shutdown.

Key Features

Feature	Design Value
UL/IEC62368-1 Certification (E-file #322138)	Validates safety compliance for end-product certification in consumer and industrial USB PD applications.
Integrated Low-Side MOSFETs (R_DS(on) ≤ 40 mΩ)	Reduces BOM count and PCB area; eliminates external LS-FET selection and layout complexity.
Configurable Reference Voltage (0.1V–2.147V @ 1mV steps)	Enables fine-grained VOUT tuning for PPS compliance and custom voltage rails without resistor changes.
Line Drop Compensation (100mV @ 1A)	Compensates for IR drop in cables/connectors; maintains target VOUT at load point under varying current.
Output Biased VCC LDO	Derives 5V supply from VOUT when ≥6.4V - eliminates need for auxiliary bias supply in boost-dominant designs.
One-Time Programmable (OTP) Memory	Stores register defaults (VOUT, fSW, OVP, CC limit) - enables factory-programmed configurations and reduces boot-time I²C writes.

Applications

USB Type-C Car Charger

USB PD Docking Station

Use Scenario: 12V automotive battery input delivering 5–20V/5A USB PD power to laptops and peripherals.

IC Role / Device Role / Timing Role: Primary buck-boost controller managing VIN-to-VOUT conversion, mode transitions, and USB PD negotiation via I²C.

Use Value: Maintains ±1% VOUT accuracy across 9–16V battery swings and 0–5A load; thermal shutdown protects against engine-off cabin heat buildup.

Use Scenario: Multi-port desktop dock accepting 20V input and supplying independent 5V/9V/15V/20V rails to monitors, storage, and peripherals.

IC Role / Device Role / Timing Role: Secondary power rail generator with programmable VOUT and IMON telemetry for dynamic load management.

Use Value: Line drop compensation ensures stable 20V at downstream ports despite 3A cable losses; OTP stores port-specific configurations.

USB PD Monitor Power Supply

Wireless Charging Transmitter

Use Scenario: High-resolution display requiring 12–20V/3A auxiliary power from USB-C upstream port.

IC Role / Device Role / Timing Role: Efficient buck-boost regulator converting variable USB PD input to fixed monitor VDD rail.

Use Value: 98% peak efficiency minimizes heat in slim chassis; 420kHz switching avoids audible noise in display audio subsystems.

Use Scenario: Qi-compliant wireless charging pad drawing 5–20V input and regulating 12V/2A for transmitter coil driver.

IC Role / Device Role / Timing Role: Adaptive voltage source enabling constant-power operation across input voltage variations.

Use Value: Seamless buck-boost mode transition prevents dropout during VIN sag (e.g., from shared USB-C hub); IMON enables coil current limiting.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MPQ4247GQV-0000-P	Automotive-grade AEC-Q100 qualified version; identical electrical specs but rated for −40°C to +125°C junction temperature.	Required for automotive infotainment or ADAS USB PD modules; not suitable for commercial-temp-only designs due to cost premium.	Select MPQ4247GQV-0000-P only if AEC-Q100 qualification and extended temperature range are mandatory.
RTQ2132B-QT	36V, 100W buck-boost with integrated high- and low-side FETs; no I²C interface; uses analog FB and external resistors for configuration.	Suitable for cost-sensitive, fixed-output applications where dynamic reconfiguration is unnecessary; lacks USB PD PPS support.	Choose RTQ2132B-QT for static-rail designs without firmware control; MP4247GQV-0000-P is superior for USB PD protocol integration.

Compared with MPQ4247GQV-0000-P, the automotive variant adds qualification overhead but no functional upgrade; versus RTQ2132B-QT, MP4247GQV-0000-P trades external component simplicity for essential I²C configurability and USB PD compliance - making it the only choice for adaptive, standards-driven power delivery.

Availability

MP4247GQV-0000-P is available at Aetrix Electronics and suitable for USB Type-C car chargers, docking stations, portable monitors, and wireless charging transmitters requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MP4247GQV-0000-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 20 years of leadership in DC/DC converters, motor drivers, and LED controllers.

The MP4247 belongs to MPS's USB PD–optimized buck-boost product line, engineered specifically for compact, high-efficiency, standards-compliant power delivery in space-constrained consumer and industrial devices.

FAQ

What is the minimum input voltage required to start up the MP4247GQV-0000-P?

The MP4247GQV-0000-P requires a minimum 3.6V on VIN to initiate startup. However, once operating, it sustains regulation down to 2.8V input when the output voltage exceeds 3.5V - a feature critical for maintaining USB PD handshake during automotive cranking events.

Can the MP4247GQV-0000-P operate without an external microcontroller?

Yes. Its one-time programmable (OTP) memory allows factory configuration of VOUT, switching frequency, OVP, and CC limits. Once programmed, it functions autonomously without I²C communication - ideal for fixed-output applications like USB-C wall adapters.

How does the line drop compensation function work?

Line drop compensation injects a voltage offset into the feedback loop proportional to output current (100mV at 1A). This counteracts IR losses in cables/connectors, ensuring the target VOUT is maintained precisely at the load rather than at the converter output pins.

What thermal derating applies above 25°C ambient?

With θ_JA = 39.1°C/W on a standard 4-layer board, the MP4247GQV-0000-P dissipates up to 6W continuously at 25°C. At 85°C ambient, maximum allowable power drops to ~4.2W - requiring careful thermal design or forced airflow for full 100W operation.

Is the IMON output ratiometric to the sensed current?

Yes. IMON provides a voltage output directly proportional to the differential voltage across R_SENSE, with gain options of 34 V/V (R_SENSE = 10mΩ) or 68 V/V (R_SENSE = 5mΩ). This enables accurate real-time current monitoring without additional signal conditioning.

Does the MP4247GQV-0000-P support USB PD 3.0 Programmable Power Supply (PPS)?

Yes. It meets USB PD 3.0 PPS specifications with 20mV VOUT resolution and ±1% accuracy across 3.3V–21V, enabled by its 1mV-step I²C-programmable reference and fast transient response (<100µs settling time).

What is the purpose of the separate AGND and PGND pins?

AGND serves as the quiet reference for analog circuits (FB, ISEN+, ISEN−, VCC regulator), while PGND carries high di/dt switch currents. Separating them prevents ground bounce from corrupting feedback accuracy and improves overall stability and EMI performance.

MP4247GQV-0000-P Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: 20-PowerVFQFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Step-Up/Step-Down

Output Configuration:: Positive

Topology:: Buck-Boost

Output Type:: Adjustable

Number of Outputs:: 2

Voltage - Input (Min):: 3.6V

Voltage - Input (Max):: 36V

Voltage - Output (Min/Fixed):: 1V

Voltage - Output (Max):: 24V

Current - Output:: 5A

Frequency - Switching:: 280kHz, 420kHz, 600kHz

Synchronous Rectifier:: No

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 20-QFN (3x5)

MP4247GQV-0000-P FAQ

1.How can I place an order for MP4247GQV-0000-P through Aetrix?

Please submit a Request for Quotation (RFQ) for MP4247GQV-0000-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 MP4247GQV-0000-P reliable?

The price and inventory of MP4247GQV-0000-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP4247GQV-0000-P is usually 5 days.

3.What payment methods are accepted for MP4247GQV-0000-P?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP4247GQV-0000-P transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP4247GQV-0000-P?

MP4247GQV-0000-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP4247GQV-0000-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 MP4247GQV-0000-P?

For technical support, including MP4247GQV-0000-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP4247GQV-0000-P requirements.

6.How does Aetrix verify that MP4247GQV-0000-P is sourced from the original manufacturer or authorized distributors?

All MP4247GQV-0000-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 MP4247GQV-0000-P meets industry standards.

7.What is the process for return or replacement of MP4247GQV-0000-P?

All MP4247GQV-0000-P units undergo pre-shipment inspection (PSI). If there is an issue with MP4247GQV-0000-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 MP4247GQV-0000-P part is unused and in its original packaging.

Return procedure for MP4247GQV-0000-P:

1.Submit a request within 90 days.

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

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