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

Monolithic Power Systems Inc. MP4247GQV-0000-Z

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

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Part No.:: MP4247GQV-0000-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 20-PowerVFQFN

Datasheet:: MP4247GQV-0000-Z.pdf

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

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Product details

Overview

MP4247GQV-0000-Z from Monolithic Power Systems is a 36V, 100W buck-boost DC-DC converter with two integrated low-side MOSFETs, an I²C interface, and OTP memory. It delivers up to 5A output current across 1V–24V output range with ±1% VOUT accuracy, supports USB PD 3.0 with PPS, and operates in buck, boost, or buck-boost mode using a single inductor. It is designed for USB Type-C power delivery applications requiring dynamic voltage negotiation.

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

Technical Context

The MP4247 implements a four-switch buck-boost topology with integrated LS-FETs and external HS-FET drivers (HG1/HG2), enabling seamless mode transitions without discontinuity. Its PLL-based oscillator ensures stable fixed-frequency operation across input (3.6V–36V) and output (1V–24V) ranges, while the I²C-configurable reference (0.1V–2.147V, 1mV resolution) enables precise PPS voltage steps.

Fault protection includes programmable OVP (114–126% of VFB), thermal shutdown at 160°C with 20°C hysteresis, hiccup-mode overcurrent response, and EN-driven passive discharge. The internal 5V VCC LDO is output-biased for efficiency, and the IMON pin provides proportional analog current monitoring 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 start-up; supports 2.8V falling VIN when VOUT > 3.5V - enables wide-input USB PD adapter and automotive accessory operation.
Output Voltage Range	1V to 24V with ±1% accuracy - meets USB PD 3.0 Programmable Power Supply (PPS) specification for fine-grained voltage control.
Max Output Power	100W peak - supports high-power USB-C charging for laptops and monitors using minimal external components.
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 - ensures reliable USB PD current negotiation and battery charging compliance.
Efficiency	Up to 98% peak - achieved via low R_DS(ON) LS-FETs (14–40 mΩ), optimized gate drivers, and output-biased VCC LDO.
I²C Interface	Standard-mode (400 kHz) and fast-mode (1000 kHz) compliant - enables real-time configuration of VREF, OCP, OVP, and operating modes.

Pinout & Package

MP4247GQV-0000-Z is housed in a thermally enhanced QFN-20 (3mm × 5mm) package with exposed thermal pad, supporting 6W continuous power dissipation at T_A = 25°C (θ_JA = 39.1°C/W).

Pin/Terminal	Circuit Role	Design Meaning
1 SCL	I²C clock input	Drives synchronous communication with host controller; supports 400–1000 kHz clock rates per JEDEC spec.
2 SDA	I²C bidirectional data line	Carries register read/write commands and status data; open-drain with internal pull-up capability.
3 ALT	I²C alert output	Open-drain, active-low fault indicator (OVP, OCP, TSD); simplifies system-level interrupt handling.
4 FB	Voltage feedback input	Connects to resistor divider from VOUT; sets regulated output with 330 mV reference (±3%) for 1% VOUT accuracy.
5 ISEN− / 6 ISEN+	Differential current-sense inputs	Measure voltage across external R_SENSE; enable ±5% CC limit and IMON analog current monitor output.
7 VOUT	Output voltage sense & VCC bias source	Provides VCC supply when VOUT > 3.5V; eliminates need for auxiliary bias rail in many USB PD designs.
8 BST2 / 19 BST1	Bootstrap supplies for HS-FET drivers	Each drives floating gate of external HS-MOSFETs (SWD/SWA); requires 0.22 µF kelvin-connected ceramic capacitor.
9 HG2 / 18 HG1	High-side gate drive outputs	Drive external boost/buck HS-FETs with 0.8–3.3 A sink/source capability and <2 Ω gate resistance for fast switching.
10 VCC	Internal 5V LDO output	Supplies internal logic and can bias external controllers; decoupled with 0.47–1 µF capacitor; max load 50 mA.
11 AGND	Analog ground reference	Must be connected to PGND at single point near VCC capacitor to minimize noise coupling into FB/ISEN paths.
12,15 PGND	Power ground return	Low-impedance path for switch currents; requires wide copper traces and multiple vias to thermal pad for thermal management.
13 SW2 / 14 SW1	Switch node connections	Interface with external inductor (L1); SW1–SW2 connection forms buck-boost power path; wide PCB trace required.
16 IMON	Analog current monitor output	Provides voltage proportional to I_OUT (34–68 V/V gain); used for system telemetry, safety monitoring, or closed-loop control.
17 EN	Enable input with passive discharge	Active-high logic (1.22 V threshold); internal 2 MΩ pull-down ensures safe shutdown; discharges VOUT when disabled.

Key Features

Feature	Design Value
USB PD 3.0 + PPS Compliance	Configurable VOUT (1V–24V, 1mV steps) and IOUT limit (±5% accuracy) meet full USB PD 3.0 Programmable Power Supply requirements.
Four-Switch Buck-Boost Architecture	Enables seamless transition between buck, boost, and buck-boost modes without output disturbance - critical for stable USB PD negotiation.
Integrated Low-Side MOSFETs	Reduces BOM count and layout complexity; R_DS(ON) of 14–40 mΩ minimizes conduction loss at 5A output.
Output-Biased VCC LDO	Derives 5V internal supply from VOUT when >3.5V - eliminates need for separate bias rail and improves system efficiency.
Line Drop Compensation	Adjusts output voltage dynamically (up to 600 mV at 3A) to counteract cable IR drop - maintains target VBUS at device port.
OTP Memory + I²C Configuration	One-time programmable registers store startup settings (VREF, fSW, OVP/OCP thresholds); enables factory calibration and firmware-free operation.

Applications

USB Type-C PD Source

USB-C Docking Station

Use Scenario: Laptop charging via USB-C port with variable voltage negotiation (5–20V).

IC Role / Device Role / Timing Role: Primary buck-boost regulator controlling VBUS output under USB PD controller command via I²C.

Use Value: Delivers up to 100W with ±1% VOUT accuracy and ±5% CC limit - ensures compliance with USB PD 3.0 PPS timing and voltage step requirements.

Use Scenario: Multi-port docking station supplying power to laptop, display, and peripherals simultaneously.

IC Role / Device Role / Timing Role: High-efficiency, dynamically reconfigurable power stage managing shared VBUS rail under host arbitration.

Use Value: Four-switch architecture enables smooth mode transitions during input voltage shifts (e.g., car adapter 9–16V), avoiding output glitches during hot-plug events.

Automotive USB-C Charger

Wireless Charging Transmitter

Use Scenario: In-vehicle USB-C charger adapting 9–16V battery input to 5–20V PPS output.

IC Role / Device Role / Timing Role: Input-wide buck-boost regulator with 2.8V UVLO fallback - sustains operation during cold-crank conditions.

Use Value: 36V absolute max rating and thermal shutdown (160°C) ensure reliability in high-ambient automotive environments.

Use Scenario: Qi-compliant wireless charging transmitter requiring tightly regulated 12–15V input for power amplifier stage.

IC Role / Device Role / Timing Role: Precision-adjustable intermediate bus converter responding to dynamic load changes during foreign object detection (FOD) cycles.

Use Value: IMON output enables real-time coil current monitoring; line-drop compensation maintains consistent Tx coil voltage despite cable losses.

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-AEC1-Z	AEC-Q100 Grade 1 qualified; identical electrical specs but extended temperature range (−40°C to +125°C) and automotive-grade screening.	Required for automotive infotainment or ADAS USB-C power modules where qualification is mandatory.	Select when automotive qualification, not just industrial temp range, is required - same footprint and register map.
LT8390AEMSE#PBF	40V input, 6A output, no integrated LS-FETs; requires external MOSFETs and lacks I²C interface or OTP memory.	Suitable for high-reliability industrial systems needing discrete FET control and analog-only configuration.	Choose when design flexibility (e.g., custom FET selection) outweighs integration benefits and USB PD configurability.

Compared with MP4247GQV-0000-Z, the MPQ4247GQV-AEC1-Z adds automotive qualification without sacrificing features, while the LT8390A offers higher input voltage and current but requires external FETs and lacks digital configurability - making MP4247GQV-0000-Z optimal for compact, standards-compliant USB PD sources.

Availability

MP4247GQV-0000-Z is available at Aetrix Electronics and suitable for USB Type-C PD adapters, docking stations, and automotive chargers requiring stable component supply, full USB PD 3.0 PPS support, and production-ready thermal performance.

Supply support for MP4247GQV-0000-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 expertise in DC-DC conversion and USB PD solutions.

The MP4247 belongs to MPS's USB PD-compliant buck-boost converter product line, engineered specifically for compact, high-efficiency USB-C power delivery systems requiring programmable voltage/current control and seamless mode transitions.

FAQ

What is the function of the VOUT pin beyond sensing?

The VOUT pin serves dual roles: it senses output voltage for regulation and acts as the bias source for the internal 5V VCC LDO when VOUT exceeds 3.5V. This eliminates the need for an auxiliary bias supply in most USB PD implementations, reducing component count and improving efficiency by deriving VCC directly from the regulated output rail.

How does the MP4247 handle mode transitions between buck and boost?

The MP4247 uses a fixed-frequency, four-switch architecture with synchronized PWM control that enables continuous conduction mode across all operating regions. Its control logic automatically adjusts duty cycles and switch activation sequences to maintain regulation without output voltage disruption - verified by load and line transient tests showing <±2% deviation during VIN/VOUT crossover points.

Can the I²C interface be used during switching operation?

Yes - the I²C interface remains fully functional during normal switching operation. Electrical characterization confirms stable communication at 400 kHz and 1000 kHz even under full 5A load, with no impact on output ripple or regulation. The ALT pin provides asynchronous fault alerts independent of I²C polling.

What is the purpose of the ISEN+ and ISEN− pins?

ISEN+ and ISEN− form a Kelvin-connected differential input that measures voltage across an external current-sense resistor (R_SENSE) placed between PGND and the output capacitor ground. This configuration rejects common-mode noise and enables accurate ±5% constant-current limiting and the IMON analog current monitor output with gain selectable via R_SENSE value.

Does the MP4247 require external high-side MOSFETs?

Yes - the MP4247 integrates only the low-side MOSFETs (SWB/SWC). External high-side MOSFETs (SWA/SWD) must be added, driven by the HG1 and HG2 gate outputs. This architecture balances integration and flexibility, allowing designers to select FETs optimized for specific voltage, current, and thermal requirements while retaining full control over switching behavior.

How is output voltage accuracy maintained across temperature and load?

Output voltage accuracy is ensured by a trimmed 330 mV internal reference (±3%), precision resistor-divider feedback (FB pin), and active line-drop compensation that corrects for cable IR loss. Load regulation is specified at ±0.8% from 0A to 5A, and thermal drift is minimized by on-die temperature compensation in the error amplifier and reference circuitry.

What protection features are implemented in hardware versus firmware?

Hardware protections include overvoltage (OVP), overcurrent (OCP), and thermal shutdown (TSD) - all implemented in analog circuitry with fixed thresholds and immediate response. The I²C interface allows firmware to configure trip levels (e.g., OVP rising threshold), but fault detection and latch/hiccup response occur autonomously without processor intervention.

MP4247GQV-0000-Z 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-Z FAQ

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

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

The price and inventory of MP4247GQV-0000-Z 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-Z is usually 5 days.

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

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

Note: Certain payment methods may incur a processing fee.

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

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

Once your MP4247GQV-0000-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 MP4247GQV-0000-Z?

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

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

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

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

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

Return procedure for MP4247GQV-0000-Z:

1.Submit a request within 90 days.

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

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