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Texas Instruments LM5007MM/S7003020
- Part No.:
- LM5007MM/S7003020
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LM5007MM/S7003020.pdf
- Description:
- IC REG BUCK ADJ 500MA 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,739
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Product details
Overview
LM5007MM/S7003020 from Texas Instruments is a 75-V input, 0.5-A synchronous buck DC/DC converter with integrated 80-V/0.7-A N-channel MOSFET, adaptive constant-on-time (COT) control, and 2.5-V precision feedback reference. It operates from 9 V to 75 V input, delivers regulated output voltage via external resistor divider, and targets high-voltage post-regulation in 48-V automotive and telecom systems.
For engineers reviewing the LM5007MM/S7003020 datasheet, LM5007MM/S7003020 pinout, LM5007MM/S7003020 application, or LM5007MM/S7003020 equivalent, key selection criteria include input voltage range (9–75 V), integrated switch RDS(on) (0.74 Ω typ), current limit threshold (725 mA typ), thermal shutdown (165 °C), and programmable on-time via RON resistor.
Technical Context
The LM5007MM/S7003020 implements an adaptive constant-on-time (COT) control architecture where tON = 1.42×10−10 × RON/VIN, enabling near-constant switching frequency across line and load variations. Its hysteretic regulation compares FB voltage against a 2.5-V internal reference and terminates on-time when VFB ≥ 2.5 V.
Current limiting uses an intelligent off-time generator: tOFF = 10−5 / (0.59 + (VFB/7.22×10−6 × RCL)), scaling inversely with output voltage to reduce foldback during overload. Protection includes VCC UVLO (6.3 V), gate drive UVLO (4.5 V typ), and thermal shutdown with 25 °C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 9 V to 75 V - supports direct connection to 12 V, 24 V, and 48 V unregulated rails without pre-regulation. |
| Output Current | 0.5 A DC - maximum continuous load current under thermal limits in WSON-8 package. |
| Integrated Switch | 80-V, 0.7-A N-channel MOSFET with 0.74 Ω RDS(on) - eliminates external high-voltage switch and reduces BOM count. |
| Feedback Reference | 2.5 V ±20 mV - enables precise output voltage setting via external resistor divider (e.g., 5 V, 3.3 V, 12 V). |
| Control Architecture | Adaptive constant-on-time (COT) - no loop compensation required; achieves ultra-fast transient response and stable DCM/CCM operation. |
| Thermal Shutdown | 165 °C with 25 °C hysteresis - automatically recovers after junction cools, ensuring robust fault recovery without manual reset. |
| Quiescent Current | 675 µA typ at 48 V - enables low-power standby operation; drops to 200 µA in shutdown mode. |
Pinout & Package
LM5007MM/S7003020 is packaged in thermally enhanced 8-pin WSON (4.00 mm × 4.00 mm) with exposed thermal pad bonded to GND. Pinout matches TI's NGT package variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Switching node | Power switching output connected to LC filter inductor; carries pulsed high-current buck waveform. |
| 2 BST | Bootstrap capacitor input | Connects to 0.01-µF ceramic capacitor between BST and SW; supplies floating gate drive for internal N-MOSFET. |
| 3 RCL | Current limit off-time programming | Resistor to RTN sets intelligent off-time inversely proportional to VFB; determines short-circuit response behavior. |
| 4 RTN | Circuit ground | Reference return for all analog and power circuits; must be low-impedance connection to system GND plane. |
| 5 FB | Feedback input | Senses regulated output via resistor divider; compared to 2.5-V internal reference to control on-time. |
| 6 RON | On-time set input | Resistor to VIN programs tON inversely with input voltage; enables stable frequency across 9–75 V range. |
| 7 VCC | Internal bias regulator output | 7-V regulated supply for gate driver and control logic; accepts auxiliary bias up to 14 V to reduce IC dissipation. |
| 8 VIN | Main input supply | High-voltage input (9–75 V); requires local 0.1-µF ceramic decoupling to RTN for EMI and stability. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive COT control | Eliminates need for external compensation network; maintains stability across wide input/output/load ranges without tuning. |
| Intelligent current limit | Off-time scales with VFB to minimize foldback during partial overloads while preserving full protection during short circuits. |
| Integrated 80-V N-MOSFET | Reduces solution size and component count; avoids discrete high-voltage switch selection, layout complexity, and gate drive design. |
| VCC self-bias regulator | 7-V internal series regulator powers gate driver and logic; supports auxiliary bias to lower die temperature in high-power applications. |
| Thermal shutdown with hysteresis | 165 °C trip with 25 °C hysteresis ensures automatic recovery after cooling-no external reset circuitry required. |
Applications
| 48-V Automotive Power Bus | Telecom Secondary Regulator |
|---|---|
|
Use Scenario: Regulating 48-V battery rail to 5 V or 3.3 V for infotainment ECUs, ADAS sensors, or gateway modules. IC Role / Device Role / Timing Role: Primary non-isolated buck converter providing point-of-load regulation with fast transient response to pulsed loads. Use Value: Integrated 80-V switch withstands load dump transients up to 80 V; COT control maintains regulation during rapid current steps from camera or radar bursts. |
Use Scenario: Post-regulating -48 V telecom rectified bus to 12 V or 5 V for line cards, optical modules, or management controllers. IC Role / Device Role / Timing Role: High-efficiency secondary DC/DC stage replacing discrete solutions in space-constrained shelf designs. Use Value: 0.5-A output and 9–75 V input range cover nominal -48 V (with polarity inversion) and brownout conditions; WSON-8 package enables compact thermal layout. |
| Industrial IoT Sensor Hub | Smart Building Control Node |
|
Use Scenario: Converting 24 V or 48 V PoE-powered infrastructure to 3.3 V for microcontrollers, wireless SoCs, and analog front-ends. IC Role / Device Role / Timing Role: Compact, self-contained buck regulator enabling single-stage conversion without pre-regulators. Use Value: Low 675 µA quiescent current extends battery backup runtime; shutdown mode draws only 200 µA for deep-sleep wake-up architectures. |
Use Scenario: Powering HVAC controllers, lighting drivers, or access control units from centralized 24 V or 48 V building power distribution. IC Role / Device Role / Timing Role: Robust primary regulator handling wide input variation due to long cable runs and intermittent loads. Use Value: VCC UVLO (6.3 V) and thermal shutdown ensure safe operation during undervoltage events or enclosure overheating; RCL-programmable OCP adapts to varying load profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5164PWPR | Wider 4.5–100 V input, 0.6-A output, integrated 100-V MOSFET; requires external compensation; larger 14-pin HTSSOP package. | Better suited for 100-V industrial inputs or higher current; less compact than LM5007MM/S7003020 in space-constrained designs. | Select LM5164PWPR when input exceeds 75 V or output current >0.5 A is needed; LM5007MM/S7003020 preferred for cost-sensitive 48-V automotive use. |
| MP2451DT-LF-Z | 3.3–36 V input, 0.6-A output, no integrated high-voltage switch; requires external 60-V MOSFET; smaller SOT-23-6 footprint. | Limited to ≤36 V inputs; cannot replace LM5007MM/S7003020 directly in 48-V or 72-V systems without pre-regulation. | Choose MP2451DT-LF-Z only for sub-36 V applications where board area is critical; LM5007MM/S7003020 remains necessary for true 48-V+ direct conversion. |
Compared with LM5164PWPR and MP2451DT-LF-Z, LM5007MM/S7003020 uniquely balances 75-V input capability, integrated 80-V switch, and WSON-8 compactness-making it optimal for automotive and telecom post-regulation where space, voltage margin, and BOM simplicity are jointly constrained.
Availability
LM5007MM/S7003020 is available at Aetrix Electronics and suitable for 48-V automotive power bus, telecom secondary regulation, and industrial IoT sensor hub applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LM5007MM/S7003020 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
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets since 1930.
The LM5007MM/S7003020 belongs to TI's high-voltage DC/DC converter product line, designed specifically for efficient, compact, and robust step-down regulation from unregulated 12 V to 75 V rails in automotive, telecom, and industrial systems.
FAQ
What is the maximum input voltage rating for LM5007MM/S7003020?
The LM5007MM/S7003020 has an absolute maximum input voltage rating of 80 V (VIN to RTN), with recommended operating range from 9 V to 75 V. This allows reliable operation under 48-V automotive load dump conditions up to 80 V transient peaks, provided external input filtering and clamping are implemented per TI's layout guidelines.
Does LM5007MM/S7003020 require external compensation components?
No, LM5007MM/S7003020 does not require external compensation components. Its adaptive constant-on-time (COT) control architecture eliminates the need for loop compensation networks, reducing design complexity and component count while maintaining stability across input, output, and load variations.
How is the output voltage set on LM5007MM/S7003020?
The output voltage of LM5007MM/S7003020 is set using an external resistor divider connected to the FB pin. With a precise 2.5-V internal reference, VOUT = 2.5 × (1 + RFB1/RFB2). For example, RFB1 = 10 kΩ and RFB2 = 5 kΩ yields 7.5 V output. Minimum load current ≥1 mA must be maintained for proper bootstrap capacitor recharge.
What package type is used for LM5007MM/S7003020?
LM5007MM/S7003020 uses the 8-pin WSON (NGT) package measuring 4.00 mm × 4.00 mm with an exposed thermal pad. This thermally enhanced package provides significantly lower junction-to-board thermal resistance (15.1 °C/W) versus the VSSOP option, supporting higher ambient temperatures and sustained 0.5-A output in compact layouts.
Can LM5007MM/S7003020 operate in discontinuous conduction mode (DCM)?
Yes, LM5007MM/S7003020 operates in discontinuous conduction mode (DCM) at light loads and transitions to continuous conduction mode (CCM) at heavier loads. Its COT control inherently supports both modes-DCM improves light-load efficiency by reducing switching frequency, while CCM maintains regulation and ripple performance at full 0.5-A output.
LM5007MM/S7003020 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 9V
- Voltage - Input (Max):
- 75V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- 73V
- Current - Output:
- 500mA
- Frequency - Switching:
- 50kHz ~ 800kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LM5007MM/S7003020 FAQ
1.How can I place an order for LM5007MM/S7003020 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM5007MM/S7003020 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 LM5007MM/S7003020 reliable?
The price and inventory of LM5007MM/S7003020 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM5007MM/S7003020 is usually 5 days.
3.What payment methods are accepted for LM5007MM/S7003020?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM5007MM/S7003020 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM5007MM/S7003020?
LM5007MM/S7003020 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM5007MM/S7003020 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 LM5007MM/S7003020?
For technical support, including LM5007MM/S7003020 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM5007MM/S7003020 requirements.
6.How does Aetrix verify that LM5007MM/S7003020 is sourced from the original manufacturer or authorized distributors?
All LM5007MM/S7003020 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 LM5007MM/S7003020 meets industry standards.
7.What is the process for return or replacement of LM5007MM/S7003020?
All LM5007MM/S7003020 units undergo pre-shipment inspection (PSI). If there is an issue with LM5007MM/S7003020, 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 LM5007MM/S7003020 part is unused and in its original packaging.
Return procedure for LM5007MM/S7003020:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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