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MP2329GG-Z
Monolithic Power Systems Inc.
IC REG BUCK ADJ 6.5A 11QFN
50195 Pcs New Original In Stock
Buck Switching Regulator IC Positive Adjustable 0.6V 1 Output 6.5A 11-VFQFN
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*Quantity
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Minimum 1
5.0 / 5.0
- (247 Ratings)
MP2329GG-Z
Product Overview
11165398
DiGi Electronics Part Number
MP2329GG-Z-DGManufacturer
Monolithic Power Systems Inc.
MP2329GG-Z
Description
IC REG BUCK ADJ 6.5A 11QFNInventory
50195 Pcs New Original In Stock
Buck Switching Regulator IC Positive Adjustable 0.6V 1 Output 6.5A 11-VFQFN
Quantity
Minimum 1
Minimum 1
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MP2329GG-Z Technical Specifications
Category
Power Management (PMIC), Voltage Regulators - DC DC Switching Regulators
Packaging
-
Series
MP
Product Status
Active
Function
Step-Down
Output Configuration
Positive
Topology
Buck
Output Type
Adjustable
Number of Outputs
1
Voltage - Input (Min)
4.5V
Voltage - Input (Max)
24V
Voltage - Output (Min/Fixed)
0.6V
Voltage - Output (Max)
13V
Current - Output
6.5A
Frequency - Switching
700kHz
Synchronous Rectifier
Yes
Operating Temperature
-40°C ~ 125°C (TJ)
Mounting Type
Surface Mount
Package / Case
11-VFQFN
Supplier Device Package
11-QFN (2x2)
Datasheet & Documents
HTML Datasheet
MP2329GG-Z-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
1589-MP2329GG-ZTR
Standard Package
5,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
грудня 02, 2025
Their reliable services have greatly contributed to our business stability.
грудня 02, 2025
They provide trustworthy after-sales service, ensuring my concerns are always addressed.
грудня 02, 2025
Logistics at DiGi Electronics is seamless, which greatly enhances our supply chain reliability.
грудня 02, 2025
I feel confident purchasing from DiGi Electronics because of their excellent quality assurance.
грудня 02, 2025
Their attention to packaging detail gives me confidence in their service.
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Frequently Asked Questions (FAQ)
What are the critical layout considerations when designing a PCB for the MP2329GG-Z to ensure stable operation and avoid oscillations under high-load transients?
When designing with the MP2329GG-Z, prioritize a compact, low-inductance power loop by placing the input capacitor (CIN) as close as possible to the VIN and PGND pins. Use a solid ground plane and connect the exposed thermal pad directly to PGND with multiple vias to improve both thermal performance and noise immunity. Keep the feedback trace (FB pin) short and away from noisy switching nodes (SW pin) to prevent coupling-induced instability. A poor layout can cause voltage overshoot, ringing, or even latch-up during fast load steps—especially near the 6.5A output limit. Always follow the reference design in the datasheet and validate with a prototype under dynamic load conditions.
Can the MP2329GG-Z safely replace the TPS54620RGYT in a 12V-to-3.3V, 5A industrial application without redesigning the feedback network or output filter?
Direct replacement of the TPS54620RGYT with the MP2329GG-Z is not recommended without re-evaluating the compensation network and output inductor. While both are synchronous buck regulators with similar input/output ranges, the MP2329GG-Z operates at 700kHz (vs. 500kHz typical for TPS54620) and has different control loop dynamics. The FB pin reference voltage is 0.6V (same as TPS54620), but the error amplifier gain and phase margin differ. You must recalculate the feedback resistor divider and verify stability with the new switching frequency—using the original LC filter may result in suboptimal transient response or instability. Always simulate or bench-test the loop response before deployment.
How does the thermal performance of the MP2329GG-Z in a 2x2mm QFN package compare to larger alternatives like the MPQ4470GF-0000-Z when delivering 5A continuously in a 24V input, 5V output scenario?
The MP2329GG-Z in its 2x2mm 11-QFN package has limited thermal dissipation capability compared to larger packages like the MPQ4470GF-0000-Z (which uses a 5x5mm QFN). At 24V input to 5V/5A output, power loss in the MP2329GG-Z can exceed 1.5W due to conduction and switching losses, leading to significant junction temperature rise—especially without adequate copper pour or airflow. In contrast, the MPQ4470’s larger thermal pad and die area allow better heat spreading. For continuous 5A operation in high ambient temperatures (>50°C), consider adding a copper keep-out area under the device, increasing PCB copper weight, or using forced airflow. If thermal headroom is tight, the MPQ4470 may be a safer choice despite higher cost and board area.
Is the MP2329GG-Z suitable for battery-powered applications where input voltage can drop below 5V, and how does its efficiency at light loads (e.g., 10mA) impact system runtime?
The MP2329GG-Z can operate down to 4.5V input, making it viable for 5V or 3-cell Li-ion systems, but its fixed 700kHz switching frequency means it lacks pulse-skipping or PFM modes at light loads. This results in relatively high quiescent current and poor efficiency below ~100mA, which can significantly reduce battery life in sleep or idle states. For battery-powered designs where runtime during low-power modes is critical, consider alternatives with light-load efficiency optimization (e.g., MP2315 or TPS62840). If you must use the MP2329GG-Z, minimize idle current by disabling the regulator via the EN pin when the load is off, or add a low-IQ LDO for standby rails.
What failure modes should I anticipate if the MP2329GG-Z is subjected to repeated input voltage surges above 24V, such as in automotive load-dump scenarios, and how can I protect it?
The MP2329GG-Z has a maximum input voltage rating of 24V; exposing it to automotive load-dump transients (which can exceed 40V) risks catastrophic failure due to overvoltage breakdown of the internal MOSFETs or control circuitry. Even brief surges can degrade reliability over time. To mitigate this, place a TVS diode (e.g., SMAJ33A) close to the input connector and use a series input fuse or polyfuse. Additionally, include an LC filter or ferrite bead to attenuate high-frequency spikes. For harsh environments, consider a pre-regulator or use a regulator with higher input tolerance like the MPQ4430 (40V max). Always validate surge protection under ISO 7637-2 test conditions if targeting automotive use.
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MP2329GG-Z CAD Models
Monolithic Power Systems Inc. MP2329GG-Z PCB symbols & footprints
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