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LM5030MM
Texas Instruments
IC REG CTRLR MULT TOP 10MSOP
4487 Pcs New Original In Stock
Full-Bridge, Half-Bridge, Push-Pull Regulator Positive, Isolation Capable Output Step-Up/Step-Down DC-DC Controller IC 10-VSSOP
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5.0 / 5.0
- (198 Ratings)
LM5030MM
Product Overview
1337570
DiGi Electronics Part Number
LM5030MM-DGManufacturer
Texas Instruments
LM5030MM
Description
IC REG CTRLR MULT TOP 10MSOPInventory
4487 Pcs New Original In Stock
Full-Bridge, Half-Bridge, Push-Pull Regulator Positive, Isolation Capable Output Step-Up/Step-Down DC-DC Controller IC 10-VSSOP
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
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LM5030MM Technical Specifications
Category
Power Management (PMIC), DC DC Switching Controllers
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Last Time Buy
Output Type
Transistor Driver
Function
Step-Up/Step-Down
Output Configuration
Positive, Isolation Capable
Topology
Full-Bridge, Half-Bridge, Push-Pull
Number of Outputs
2
Output Phases
1
Voltage - Supply (Vcc/Vdd)
14V ~ 90V
Frequency - Switching
200kHz, 600kHz
Duty Cycle (Max)
50%
Synchronous Rectifier
No
Clock Sync
No
Serial Interfaces
-
Control Features
Frequency Control, Soft Start
Operating Temperature
-40°C ~ 105°C (TA)
Mounting Type
Surface Mount
Package / Case
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package
10-VSSOP
Base Product Number
LM5030
Datasheet & Documents
HTML Datasheet
LM5030MM-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
LM5030MMDKR
LM5030MMCT
TEXTISLM5030MM
2156-LM5030MM
LM5030MMTR
Standard Package
1,000
Alternative Parts
View DetailsPART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
포장용 박스가 견고하고 내부 포장도 잘 되어 있어 배송 중 손상 위험이 적었습니다. 물류 추적도 실시간으로 확인 가능해서 좋아요.
de desembre 02, 2025
품질이 우수하고 가격이 저렴해서 대량 구매도 망설이지 않게 됐어요.
de desembre 02, 2025
Bei DiGi Electronics fühlt man sich als Kunde wirklich gut aufgehoben.
de desembre 02, 2025
手頃な価格と迅速配送により、買い替えもスムーズに行えました。
de desembre 02, 2025
製品の品質が高く、性能も申し分ありません。買って良かったです。
de desembre 02, 2025
The support staff answered all my questions with patience and expertise, which is much appreciated.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the LM5030MM in a high-input-voltage industrial power supply above 70V?
When designing with the LM5030MM in high-input-voltage applications (up to 90V), the primary risk lies in transient voltage spikes on the VCC pin during startup or load transients. Since the LM5030MM does not include integrated clamping, ensure the bias supply to VCC is externally regulated—typically via a transient voltage suppressor (TVS) or auxiliary winding regulation. Also, verify gate drive strength under low-duty-cycle conditions, as the 50% max duty cycle limits deep buck operation. Use careful PCB layout with short high-current paths to minimize ringing on the driver outputs. Operating near the upper voltage limit increases stress on external FETs and transformers, so derate components accordingly for long-term reliability.
Can the LM5030MM replace the MAX5042 in an existing push-pull converter, and what layout changes are required?
Yes, the LM5030MM can serve as a functional replacement for the MAX5042 in push-pull topologies, but critical differences must be addressed. The LM5030MM has a maximum switching frequency of 600kHz compared to MAX5042’s 1MHz, so adjust timing components and transformer design accordingly. The MAX5042 supports higher duty cycles (up to 100%), whereas the LM5030MM is limited to 50%, requiring topology modifications if duty cycles above 50% were previously used. Also, the enable and soft-start circuits differ—ensure the control logic is compatible. Redesign the PCB’s gate drive loops to minimize inductance, as the LM5030MM is sensitive to ringing due to its high-voltage operation.
How does the lack of synchronization (clock sync) in the LM5030MM affect EMI performance in multi-rail systems?
The LM5030MM lacks clock synchronization capability, which can lead to beat frequencies and increased conducted EMI when multiple converters operate independently in the same system. For designs with multiple LM5030MM or other switching supplies, the lack of sync may require additional input filtering and shielding. To mitigate EMI risks, stagger switching frequencies using the internal frequency control resistor at different values (e.g., 200kHz vs 600kHz) to spread noise spectrum. Alternatively, use spread-spectrum techniques externally if available. Place the LM5030MM on isolated power domains with common-mode chokes to reduce coupling between noise sources.
Is the LM5030MM suitable for isolated DC-DC converters in harsh environments, and how does the -40°C to 105°C rating impact long-term reliability?
Yes, the LM5030MM is designed for isolated topologies like full-bridge and push-pull converters commonly found in industrial and automotive applications. Its wide temperature range (-40°C to 105°C) supports operation in harsh environments, but the junction temperature must be managed to maintain reliability. Since the LM5030MM dissipates heat through the VSSOP package, ensure adequate PCB copper for thermal dissipation—use multiple thermal vias to an inner ground plane. At high ambient temperatures (>85°C), derate the input voltage and reduce switching frequency to minimize thermal stress. Monitor thermal performance during burn-in testing to avoid latent infant mortality issues.
What are the critical trade-offs when selecting the LM5030MM over the LM5035 for a half-bridge converter in a telecom power system?
When comparing the LM5030MM and LM5035 for half-bridge applications, key trade-offs include input voltage range and integration level. The LM5030MM supports up to 90V input, making it ideal for 48V systems, while the LM5035 operates up to 100V but offers enhanced light-load efficiency due to burst mode capability—absent in the LM5030MM. The LM5030MM’s lack of synchronous rectification control increases external component count compared to the LM5035. However, the LM5030MM’s simplicity and availability (despite being Last Time Buy) may favor short-term production runs. For new designs requiring long lifecycle support, evaluate stock availability risks and consider obsolescence planning around the LM5030MM.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
LM5030MM CAD Models
Texas Instruments LM5030MM PCB symbols & footprints
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