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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Supply Controllers, Monitors

Monolithic Power Systems Inc. MP6923GS-P

Name: MP6923GS-P
Brand: Monolithic Power Systems Inc.
SKU: MP6923GS-P
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP6923GS-P

Manufacturer:: Monolithic Power Systems Inc.

Category:: Power Supply Controllers, Monitors

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: MP6923GS-P.pdf

Description:: HIGH-EFFICIENCY, DUAL FAST TURN-

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MP6923GS-P from Monolithic Power Systems is a dual-channel, fast turn-off synchronous rectifier controller IC designed for LLC resonant converters. It drives two N-channel MOSFETs with 15mV V_DS regulation, 20ns total turn-off delay, and supports CCM/CrCM/DCM operation across 8–24V V_DD. Used in high-efficiency AC/DC adapters delivering 12V/7.5A output.

For engineers reviewing the MP6923GS-P datasheet, MP6923GS-P pinout, MP6923GS-P application, or MP6923GS-P equivalent, key selection criteria include its 15mV forward-voltage regulation accuracy, anti-bounce logic for cross-conduction prevention, light-load latch-off function (<600μA quiescent current), and SOIC14 package compatibility with standard PCB layout practices.

Technical Context

The MP6923GS-P implements adaptive V_DS-sensing control with programmable blanking to prevent false triggering during switching transients. Its dual-channel architecture includes independent V_D1/V_S1 and V_D2/V_S2 sensing paths, each with ±30mV turn-off threshold and 150–300ns turn-on delay (temperature- and load-dependent).

Light-load operation is managed via external resistor programming on LD and LL pins, enabling configurable enter delay (550–1100μs), pulse width (1.3–2.9μs), and off-period width (30–60μs). Thermal shutdown activates at 150°C with 30°C hysteresis, and EN pin provides 1.1–2.0V enable threshold with internal 10–16μA pull-up.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS Regulation	15mV typical - maintains MOSFET conduction loss at minimum by dynamically adjusting gate drive to hold V_DS near zero.
Turn-off Delay	20ns typical - enables reliable operation in fast transient CCM without shoot-through risk.
Max Switching Frequency	300kHz - supports high-density LLC designs up to telecom-grade SMPS switching speeds.
V_DD Range	8V to 24V - accommodates wide-input auxiliary supplies in offline adapters and industrial power supplies.
Quiescent Current	<600μA in light-load mode - meets Energy Star 0.5W standby requirements without auxiliary bias winding.
Operating Temp	−40°C to +125°C junction - validated for sustained operation in enclosed TV and telecom power enclosures.
Thermal Shutdown	150°C with 30°C hysteresis - protects against thermal runaway during overload or poor heatsinking.

Pinout & Package

MP6923GS-P is housed in a SOIC14 package (JEDEC MS-012, variation AB) with 1.27mm pitch, 8.55–8.75mm length, and 3.80–4.00mm width. Pin 1 identifier aligns with standard SOIC orientation marking.

Pin/Terminal	Circuit Role	Design Meaning
1, 14 PGND	Power ground reference	Return path for both gate drivers; must be low-inductance connection to minimize noise coupling into V_D/V_S sensing.
2 VG2	MOSFET 2 gate driver output	High-current sink/source capable of driving >3A peak; connects directly to SR MOSFET gate with minimal trace inductance.
3 EN	Enable control input	Logic-level input with 1.1–2.0V rising threshold; latches off drivers when pulled low, reducing system standby loss.
4 LL	Light-load timing set	Connects external resistor to program τ_LL (light-load pulse width); sets MOSFET conduction window during burst-mode operation.
5, 10 NC	No connection	Internally unconnected; must remain floating or grounded per layout guidelines-no routing or vias allowed.
6 VD2	MOSFET 2 drain voltage sense	High-voltage input (−0.7V to +180V) sensing drain node; requires Kelvin connection close to MOSFET drain to reject switching noise.
7 VS2	MOSFET 2 source reference	Local source reference for VD2; forms differential pair with VD2 to detect body diode conduction and V_DS crossing.
8 VS1	MOSFET 1 source reference	Local source reference for VD1; isolated from VS2 to prevent channel crosstalk in dual-output LLC secondaries.
9 VD1	MOSFET 1 drain voltage sense	High-voltage input (−0.7V to +180V); identical function to VD2 but dedicated to first channel's synchronous rectification control.
11 LD	Light-load enter delay set	Resistor-programmable input defining τ_LL-Delay (550–1100μs); determines latency before entering latch-off mode under light load.
12 V_DD	Supply voltage input	8–24V input powering internal logic and gate drivers; requires ≥1μF local ceramic decoupling to PGND.
13 VG1	MOSFET 1 gate driver output	High-current sink/source output; symmetric to VG2 with matched propagation delay and drive strength for balanced dual-channel operation.

Key Features

Feature	Design Value
15mV V_DS regulation	Minimizes conduction loss across full load range by actively controlling MOSFET R_DS(ON) via dynamic gate voltage adjustment.
Anti-bounce logic	Prevents simultaneous conduction of both channels by blanking one driver until the other completes turn-off, eliminating cross-conduction risk.
Programmable light-load mode	Reduces quiescent current to <600μA via external resistors on LD/LL pins, meeting 0.5W standby without auxiliary winding.
Fast 20ns turn-off propagation	Enables stable operation in high-frequency CCM LLC topologies where MOSFET current reversal occurs rapidly.
Independent dual-channel sensing	Separate V_D1/V_S1 and V_D2/V_S2 inputs allow asymmetric secondary windings or independent output rails in multi-output LLC designs.

Applications

AC/DC Adapters

LCD & PDP TVs

Use Scenario: 90W universal-input adapter converting 240VAC to regulated 12V/7.5A output using LLC topology.

IC Role / Device Role / Timing Role: Dual-channel synchronous rectifier controller managing two secondary-side N-MOSFETs with precise 15mV V_DS regulation and anti-bounce coordination.

Use Value: Achieves >94% efficiency at full load and <0.5W no-load consumption, satisfying DOE Level VI and Energy Star v2.0 requirements.

Use Scenario: 200W LCD TV power supply with dual 12V/19V outputs, operating in CrCM at 250kHz.

IC Role / Device Role / Timing Role: Primary synchronous rectifier IC for main 12V rail, coordinating turn-on/turn-off with transformer secondary voltage polarity transitions.

Use Value: Reduces secondary-side conduction loss by 45% vs. Schottky diodes, lowering thermal stress on PCB and enabling fanless TV chassis design.

Telecom SMPS

Industrial DC-DC Modules

Use Scenario: 48V input telecom rectifier supplying 12V/10A to base station control boards with strict EMI limits.

IC Role / Device Role / Timing Role: Fast-turn-off SR controller ensuring clean zero-current switching in CCM mode at 300kHz maximum frequency.

Use Value: Eliminates body-diode reverse recovery loss and suppresses high-frequency ringing, easing EMI filter design and passing CISPR-32 Class B.

Use Scenario: 36–75VDC input industrial DC-DC module delivering isolated 5V/3A for PLC I/O modules in harsh environments.

IC Role / Device Role / Timing Role: Dual-channel LLC synchronous rectifier with thermal shutdown (150°C) and −40°C to +125°C operation for extended temperature reliability.

Use Value: Maintains >92% efficiency across full temperature range while supporting 10-year field life without derating in sealed enclosures.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel LLC synchronous rectifier controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MP6924GS-Z	Single-channel version with identical 15mV regulation and 20ns turn-off, but lacks dual-channel integration and anti-bounce logic.	Requires two devices for dual-output LLC, increasing BOM count and PCB area; no inter-channel coordination.	Select only when discrete channel control is required or space allows separate IC placement.
UCC24612-2QDR	TI part with 25mV V_DS regulation, 35ns turn-off delay, and integrated adaptive dead-time control-not programmable light-load mode.	Higher V_DS target increases conduction loss at light loads; no external LD/LL resistor programming for burst-mode tuning.	Prefer when leveraging TI's WEBENCH ecosystem or needing automotive AEC-Q100 qualification (UCC24612-2QDR is qualified; MP6923GS-P is not).

Compared with MP6923GS-P, MP6924GS-Z doubles component count and eliminates anti-bounce safety, while UCC24612-2QDR trades 10mV regulation precision and 15ns slower turn-off for automotive qualification-neither matches MP6923GS-P's integrated dual-channel efficiency and programmable light-load optimization in commercial telecom and display power.

Availability

MP6923GS-P is available at Aetrix Electronics and suitable for AC/DC adapters, LCD/PDP TV power supplies, and telecom SMPS requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for MP6923GS-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 analog semiconductor company specializing in high-performance power management ICs, with over 20 years of expertise in DC-DC conversion, motor drivers, and power interface solutions.

The MP6923 product line targets high-efficiency LLC resonant converter secondary-side control, emphasizing ultra-low V_DS regulation, fast transient response, and light-load optimization for energy-sensitive consumer and infrastructure power systems.

FAQ

What is the purpose of the LD and LL pins on MP6923GS-P?

The LD pin sets the light-load enter delay (τ_LL-Delay) via an external resistor, determining how long the IC waits before latching off the gate drivers under light load. The LL pin sets the light-load pulse width (τ_LL) to define the duration of synchronous conduction during burst-mode operation. Both enable precise tuning of standby efficiency without auxiliary circuitry.

Can MP6923GS-P drive logic-level MOSFETs?

Yes, MP6923GS-P is explicitly designed to work with both standard and logic-level N-channel MOSFETs. Its gate driver delivers 13–16.5V high-side output (depending on V_DD) and 3A sink capability, ensuring full enhancement of logic-level devices down to 2.5V V_GS(th) while maintaining 15mV V_DS regulation accuracy.

How does the anti-bounce logic prevent cross-conduction?

The anti-bounce logic blanks one channel's gate driver output until the other channel has fully turned off, enforced by internal timing that monitors V_D/V_S transitions. This ensures no overlap between high-side and low-side conduction windows in dual-MOSFET configurations, eliminating shoot-through risk even during fast LLC transients.

What is the maximum recommended R_DS(ON) for MOSFETs used with MP6923GS-P?

MP6923GS-P recommends MOSFETs with R_DS(ON) no lower than 15mΩ/A of output current-for example, ≥1.5mΩ for 10A applications. Lower R_DS(ON) causes excessive gate drive reduction, diminishing efficiency gains and increasing sensitivity to layout parasitics and sensing noise.

Does MP6923GS-P require external components for basic operation?

Yes: two external resistors (on LD and LL pins) for light-load timing, plus a ≥1μF ceramic capacitor from V_DD to PGND. No external bootstrap capacitors, gate resistors, or feedback networks are needed-the IC integrates all control, sensing, and drive functions for plug-and-play LLC SR implementation.

Is MP6923GS-P qualified for automotive applications?

No-MP6923GS-P is not AEC-Q100 qualified. It is rated for industrial temperature range (−40°C to +125°C) and intended for commercial/industrial power supplies including adapters, displays, and telecom equipment. For automotive use, consider MPS's AEC-Q100-qualified alternatives like MPQ6923 series.

MP6923GS-P Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: MP

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: -

Applications:: Flyback, Forward Converters, LLC

Voltage - Input:: -

Voltage - Supply:: 8V ~ 24V

Current - Supply:: 27 mA

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SOIC

MP6923GS-P FAQ

1.How can I place an order for MP6923GS-P through Aetrix?

Please submit a Request for Quotation (RFQ) for MP6923GS-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 MP6923GS-P reliable?

The price and inventory of MP6923GS-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP6923GS-P is usually 5 days.

3.What payment methods are accepted for MP6923GS-P?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP6923GS-P transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP6923GS-P?

MP6923GS-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP6923GS-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 MP6923GS-P?

For technical support, including MP6923GS-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP6923GS-P requirements.

6.How does Aetrix verify that MP6923GS-P is sourced from the original manufacturer or authorized distributors?

All MP6923GS-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 MP6923GS-P meets industry standards.

7.What is the process for return or replacement of MP6923GS-P?

All MP6923GS-P units undergo pre-shipment inspection (PSI). If there is an issue with MP6923GS-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 MP6923GS-P part is unused and in its original packaging.

Return procedure for MP6923GS-P:

1.Submit a request within 90 days.

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

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