My Inquiry
My Account
Monolithic Power Systems Inc. MP8796GVT-P
- Part No.:
- MP8796GVT-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 25-PowerWFQFN
- Datasheet:
-
MP8796GVT-P.pdf
- Description:
- IC REG BUCK ADJ 30A 25TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:455
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MP8796GVT-P from Monolithic Power Systems is a fully integrated, high-frequency synchronous step-down converter with scalable multiphase operation, 4V–16V input range, 30A per-phase continuous output current, adjustable valley current limit (ILIMIT_VALLEY), and remote sense capability. It delivers stable 0.6V–6V output in applications requiring high-density power delivery with fast transient response, such as optical module power rails.
For engineers reviewing the MP8796GVT-P datasheet, MP8796GVT-P pinout, MP8796GVT-P application, or MP8796GVT-P equivalent, this page provides verified technical context on MCOT control architecture, TQFN-25 package layout constraints, phase-interleaved current sharing, and configuration of hiccup/latch-off protection modes - all critical for high-current server, networking, and embedded power design.
Technical Context
The MP8796GVT-P implements MPS's proprietary multiphase constant-on-time (MCOT) control, enabling ultrafast load transient response without external compensation while maintaining stable operation with zero-ESR output capacitors. Its adaptive timing adjusts dynamically to input/output voltage changes, preserving regulation across wide VIN and VOUT ranges.
It supports true scalable multiphase operation via dedicated PASS/TAKE pins for master-slave synchronization, ISUM current-summing for precise inter-phase current sharing, and SET signal coordination. Phase interleaving up to n phases reduces input/output ripple and thermal stress without requiring external clock synchronization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V to 16V - supports wide industrial and telecom input rails including 5V, 12V, and 15V systems without pre-regulation. |
| Output Current | 30A per phase - enables single-chip 30A solutions or scalable >100A designs using parallel phases with matched current sharing. |
| Switching Frequency | 400kHz to 1000kHz - set via external FREQ-to-AGND resistor; fixed fSW independent of VIN/VOUT for predictable EMI and filter design. |
| Current Limit | Adjustable valley current limit (ILIMIT_VALLEY) - configured via ILIM-to-AGND resistor; sets precise overcurrent threshold for robust short-circuit protection. |
| Remote Sense | Differential FB/RGND inputs - compensates for PCB trace IR drop to maintain ±1% output accuracy at point-of-load under full 30A load. |
| Quiescent Current | 850μA - enables low-power standby modes in always-on systems without compromising startup reliability. |
| Thermal Protection | 145°C shutdown with 30°C hysteresis - prevents permanent damage during sustained overload or airflow loss in enclosed enclosures. |
Pinout & Package
TQFN-25 (4mm × 5mm) package with exposed thermal pad (PGND-connected) for enhanced heat dissipation in high-current applications. Requires 6-layer PCB with ≥2 oz copper, wide VIN/SW/PGND traces, and multiple thermal vias under the pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (1,16) | High-side MOSFET supply input | Primary power rail connection; must be decoupled with ≥100μF bulk + 10×1μF ceramic capacitors near pins to suppress switching noise. |
| SW (2,3) | Power switch node | Connects to inductor and BST capacitor; requires shortest possible trace length and minimum loop area to reduce EMI and voltage ringing. |
| PGND (4,14,15) | Power ground reference | Low-impedance return path for high di/dt currents; must be tied directly to thermal pad and separated from AGND until single-point star ground. |
| FB / RGND (22,21) | Differential remote sense inputs | FB senses positive output; RGND connects to load ground point - together they enable accurate regulation despite PCB resistance up to 20mΩ. |
| ISUM (19) | Multiphase current sum bus | Tied across all phases to force equal current distribution; eliminates need for external current-sense resistors or complex DAC-based balancing. |
| PASS / TAKE (11,12) | Phase synchronization signals | PASS outputs RUN signal to next phase; TAKE receives it - determines master/slave hierarchy and ensures synchronized soft-start and fault propagation. |
Key Features
| Feature | Design Value |
|---|---|
| Scalable multiphase operation | Up to n phases with automatic current sharing and phase interleaving - reduces input ripple by √n and output ripple by n×, easing EMI filtering. |
| Lossless on-die current sensing | Eliminates external sense resistors and associated power loss - preserves >95% efficiency at 30A while enabling accurate OCP without calibration drift. |
| Configurable protection modes | Hiccup or latch-off OCP/OVP/OTP selected via PMODE pin - allows system-level fault recovery strategy tuning without firmware intervention. |
| Adaptive COT control | Self-adjusting on-time maintains stable regulation across 0.6V–6V VOUT and 4V–16V VIN - avoids loop instability issues common in traditional voltage-mode controllers. |
| Selectability of PFM/FCCM | Light-load efficiency optimized via MODE pin - PFM extends battery life in idle states; FCCM ensures consistent ripple and timing in real-time systems. |
Applications
| Optical Transceiver Modules | Enterprise Network Switches |
|---|---|
|
Use Scenario: Powering 100G/400G QSFP-DD and OSFP modules with tight thermal envelopes and dynamic load steps up to 20A/μs. IC Role / Device Role / Timing Role: Primary 3.3V or 1.2V POL regulator with remote sense and fast transient response to maintain BER compliance during burst traffic. Use Value: MCOT control achieves <50μs recovery from 0→30A load step, preventing link flaps; TQFN-25 footprint fits within dense module PCB keepouts. |
Use Scenario: Core voltage supply for multi-core network processors and packet buffers in 1U rack-mounted switches. IC Role / Device Role / Timing Role: Scalable 2-phase or 3-phase buck controller delivering 60A–90A at 0.85V with interleaved switching to meet IPC-2221 current density limits. Use Value: ISUM-based current sharing maintains ≤±3% phase imbalance across temperature; FREQ pin enables 600kHz operation to balance efficiency vs. inductor size. |
| Industrial PLC CPU Boards | AI Accelerator Card Power Rails |
|
Use Scenario: Providing clean, regulated 1.8V/3.3V rails for ARM Cortex-A series CPUs operating in extended temperature (-40°C to +85°C) environments. IC Role / Device Role / Timing Role: Single-phase MP8796GVT-P acts as main SoC core supply with programmable soft-start (via SS pin) to prevent inrush-induced brownout on shared 12V backplane. Use Value: 850μA IQ enables low-power sleep mode; OTP hysteresis prevents thermal cycling during ambient temperature swings in unventilated cabinets. |
Use Scenario: High-current auxiliary rail (e.g., 0.75V @ 45A) for memory subsystems (HBM2E/GDDR6) adjacent to GPU die on PCIe accelerator cards. IC Role / Device Role / Timing Role: Dual-phase MP8796GVT-P pair supplies tightly regulated low-voltage rail with remote sense to compensate for 15mΩ board resistance between VRM and memory stack. Use Value: Differential FB/RGND achieves ±0.5% load regulation at 45A; low RDS(ON) HS/LS FETs (4.4mΩ/1.5mΩ) minimize conduction loss and junction temperature rise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RTQ2132BGQW | 30A single-phase buck with 2.7V–16V VIN, but lacks multiphase scalability and remote sense; uses current-mode control instead of MCOT. | Suitable for space-constrained single-rail designs where phase interleaving is unnecessary and load transients are moderate (<10A/μs). | Choose RTQ2132BGQW only when multiphase coordination and sub-50μs transient response are not required. |
| TPS546D24ARVFT | 40A single-phase buck with PMBus interface, digital control, and built-in telemetry - but larger 6×6mm QFN package and higher BOM cost. | Preferred in systems requiring real-time telemetry, adaptive voltage scaling, or firmware-configurable protection thresholds. | Choose TPS546D24ARVFT when digital configurability and telemetry outweigh the need for analog simplicity and minimal footprint. |
Compared with RTQ2132BGQW and TPS546D24ARVFT, the MP8796GVT-P uniquely combines analog MCOT control for deterministic transient performance, hardware-based multiphase scalability without microcontroller dependency, and TQFN-25 packaging for highest current density - making it optimal for cost-sensitive, high-reliability analog power systems.
Availability
MP8796GVT-P is available at Aetrix Electronics and suitable for optical transceiver modules, enterprise network switches, industrial PLC CPU boards, and AI accelerator card power rails requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for MP8796GVT-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 innovation in DC/DC conversion, motor drivers, and LED lighting controllers.
The MP8796 product line targets high-current, high-density point-of-load applications in datacom, telecom, and industrial automation - designed specifically to replace multi-chip discrete solutions with monolithic, thermally optimized, and easily scalable power stages.
FAQ
What is the maximum supported number of parallel MP8796GVT-P phases?
The MP8796GVT-P supports unlimited parallel phases in theory, but practical implementation is limited by PCB layout, thermal management, and ISUM bus loading. Reference designs demonstrate stable operation with up to 4 phases using standard 6-layer boards; beyond that, careful attention to trace impedance matching and PGND partitioning is required to maintain ≤±5% current imbalance.
Can MP8796GVT-P operate with input voltage below 4V?
No - the absolute minimum operating VIN is 4V per datasheet Section 7 (Recommended Operating Conditions). At VIN < 4V, internal bias generation fails and the device enters UVLO shutdown. For 3.3V-input applications, an external 3.3V VCC bias must be supplied to the VDRV pin, enabling operation down to 3.3V VIN with proper derating.
How does the RAMP pin affect stability in different output voltage configurations?
The RAMP pin selects internal ramp compensation (15mV or 44mV) to stabilize the MCOT loop under varying duty cycles. Use 15mV for VOUT ≥ 3.3V (e.g., 5V output) and 44mV for VOUT ≤ 1.8V (e.g., 1.2V CPU core) - mismatched selection causes subharmonic oscillation or poor light-load regulation, confirmed by observed VOUT ripple in typical characterization plots.
Is remote sense mandatory for achieving specified output voltage accuracy?
Remote sense is not mandatory but required to achieve ±1% total output accuracy across full load and temperature. Without remote sense (i.e., tying RGND to AGND), accuracy degrades to ±2% due to PCB trace resistance - sufficient for non-critical rails but inadequate for memory or FPGA core supplies where voltage tolerance is ≤±30mV.
What is the recommended BST capacitor value and dielectric type?
A 0.1μF X7R ceramic capacitor is recommended between BST and SW pins. This value ensures reliable high-side gate drive across the full 400–1000kHz fSW range and 30A load; X7R offers stable capacitance vs. DC bias and temperature, preventing gate drive collapse during heavy load transients.
Does MP8796GVT-P support spread-spectrum frequency modulation?
No - the MP8796GVT-P does not implement spread-spectrum modulation. Its FREQ pin sets a fixed switching frequency; EMI reduction relies on phase interleaving in multiphase configurations and optimized PCB layout (e.g., symmetric SW loops, buried GND planes). No register or pin controls frequency dithering.
How is thermal performance affected when using the exposed thermal pad without solder paste stencil optimization?
Without proper thermal pad soldering (≥70% coverage, 5–7 mil stencil, reflow profile per JEDEC J-STD-020), θJA increases from 21.9°C/W to >35°C/W - causing junction temperature to exceed 125°C at 25A continuous load. Verified thermal imaging shows localized hot spots >150°C under insufficient pad fill, triggering OTP shutdown.
MP8796GVT-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 25-PowerWFQFN
- 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):
- 4V
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 6V
- Current - Output:
- 30A
- Frequency - Switching:
- 400kHz ~ 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 25-TQFN (4x5)
MP8796GVT-P FAQ
1.How can I place an order for MP8796GVT-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP8796GVT-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 MP8796GVT-P reliable?
The price and inventory of MP8796GVT-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP8796GVT-P is usually 5 days.
3.What payment methods are accepted for MP8796GVT-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP8796GVT-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP8796GVT-P?
MP8796GVT-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP8796GVT-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 MP8796GVT-P?
For technical support, including MP8796GVT-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP8796GVT-P requirements.
6.How does Aetrix verify that MP8796GVT-P is sourced from the original manufacturer or authorized distributors?
All MP8796GVT-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 MP8796GVT-P meets industry standards.
7.What is the process for return or replacement of MP8796GVT-P?
All MP8796GVT-P units undergo pre-shipment inspection (PSI). If there is an issue with MP8796GVT-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 MP8796GVT-P part is unused and in its original packaging.
Return procedure for MP8796GVT-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MP8796GVT-P Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
