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Texas Instruments LMR64010XMFX/NOPB
- Part No.:
- LMR64010XMFX/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMR64010XMFX/NOPB.pdf
- Description:
- IC REG BOOST ADJ 1A SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,799
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Product details
Overview
LMR64010XMFX/NOPB from Texas Instruments is a current-mode step-up DC-DC converter IC in SOT-23-5 package, delivering up to 40V output from 2.7–14V input with 1.6 MHz fixed switching frequency, 1A internal switch current limit, and <1 µA shutdown quiescent current. It enables compact high-voltage boost for space-constrained LED drivers and LCD bias supplies.
For engineers reviewing the LMR64010XMFX/NOPB datasheet, LMR64010XMFX/NOPB pinout, LMR64010XMFX/NOPB application, or LMR64010XMFX/NOPB equivalent, key selection criteria include its 40V internal FET rating, cycle-by-cycle current limiting, internal compensation, SOT-23-5 thermal resistance (θJ-A = 265°C/W), and logic-level shutdown functionality.
Technical Context
The LMR64010XMFX/NOPB implements fixed-frequency (1.6 MHz) current-mode control with integrated 1A N-channel MOSFET switch, enabling fast transient response and stable regulation across wide input ranges. Its feedback loop uses an internal 1.23 V reference and external resistive divider to set output voltage.
Protection includes cycle-by-cycle current limiting and thermal shutdown. The device operates over −40°C to +125°C junction temperature, with FB pin voltage range of −0.4 V to +6 V and SW pin voltage tolerance up to +40 V - confirming suitability for high-output-voltage boost topologies without external switch or driver.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7 V to 14 V - supports single-cell Li-ion, 3.3 V/5 V/12 V rails without pre-regulation. |
| Output Voltage Range | Up to 40 V - enables direct driving of white LED strings or LCD panel bias without external transistor. |
| Switch Current Limit | 1.0 A typical - sets maximum deliverable power at given duty cycle and input voltage. |
| Switching Frequency | 1.6 MHz nominal - allows use of small 2.2–10 µH inductors and ceramic capacitors for minimal footprint. |
| Shutdown Quiescent Current | <1 µA - extends battery life in portable systems during standby mode. |
| Feedback Reference Voltage | 1.230 V ±25 mV - defines precision of output voltage setting via external resistor divider. |
| Thermal Resistance θJ-A | 265 °C/W - requires careful PCB copper area design for >150 mW continuous dissipation. |
Pinout & Package
SOT-23-5 package (DBV0005A), dimensions 2.92 × 2.84 × 1.08 mm, moisture sensitivity level 1, lead finish Sn, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 – SW | Switch node | Drain of internal 1A N-FET; connects to inductor and Schottky diode anode; rated to +40 V. |
| 2 – GND | Ground reference | Common analog and power return path; must be low-impedance connection to minimize noise and thermal rise. |
| 3 – FB | Feedback input | High-impedance node sensing output voltage via resistive divider; reference is 1.23 V. |
| 4 – SHDN | Logic-level enable | Active-high shutdown control; threshold ~1.5 V ON / ~0.5 V OFF; must not float. |
| 5 – VIN | Power input | Supplies internal circuitry and switch gate drive; accepts 2.7–14 V with 14.5 V absolute max. |
Key Features
| Feature | Design Value |
|---|---|
| Internally compensated | Eliminates need for external compensation network - reduces BOM count and layout sensitivity. |
| Cycle-by-cycle current limiting | Prevents switch overcurrent during startup, short-circuit, or overload - no external sense resistor required. |
| 1.6 MHz fixed-frequency operation | Enables use of sub-10 µH inductors and 2.2–10 µF ceramic output capacitors - minimizes solution size. |
| Logic-level shutdown pin | Supports direct interface with microcontroller GPIO without level-shifting - simplifies system power sequencing. |
| 40 V internal switch rating | Permits direct generation of 16–40 V outputs without external high-voltage switch - reduces component count and cost. |
Applications
| LED Backlighting | LCD Panel Bias Supply |
|---|---|
Use Scenario: Driving parallel strings of white LEDs in portable displays or industrial HMIs. IC Role / Device Role / Timing Role: Step-up regulator providing constant-current source via external current-sense resistor and feedback configuration. Use Value: Delivers up to 40 V output from 3.3 V or 5 V rail with 1.6 MHz switching - enables compact, low-EMI LED driver design without transformer or external switch. | Use Scenario: Generating VPOS and VNEG bias voltages for TFT-LCD source/gate drivers. IC Role / Device Role / Timing Role: Primary high-voltage boost stage feeding charge-pump or linear post-regulators. Use Value: 40 V internal FET and 1A switch current support >150 mA output at 25–35 V - sufficient for mid-size display panels with minimal external components. |
| Portable Medical Sensors | Industrial I/O Module Power |
Use Scenario: Powering photodiode transimpedance amplifiers or optical isolation circuits requiring isolated 12–24 V rails. IC Role / Device Role / Timing Role: Compact, low-noise boost converter supplying analog front-end subsystems from single Li-ion cell. Use Value: <1 µA shutdown current and 2.7 V minimum input extend battery runtime; internal compensation ensures stability with ceramic caps only. | Use Scenario: Generating 24 V auxiliary supply for 4–20 mA loop-powered sensors or digital isolators in field devices. IC Role / Device Role / Timing Role: High-efficiency boost stage converting 5 V system rail to 24 V for sensor excitation or communication interfaces. Use Value: 1.6 MHz operation avoids AM radio band interference; SOT-23-5 footprint fits tight board areas near connectors or isolation barriers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61040DRVR | 28 V max output, 0.5 A switch, 500 kHz–1 MHz adjustable frequency, higher IQ in shutdown (1 µA vs <1 µA). | Lower output voltage ceiling limits use in >28 V LED or LCD applications. | Preferred where lower EMI or adjustable frequency is needed, but not for 35–40 V outputs. |
| MAX17062ETA+ | 40 V output, 1.2 A switch, 1.2 MHz fixed frequency, requires external compensation. | Higher switch current and wider input range (1.8–16.5 V), but needs compensation capacitor and larger layout area. | Selected when higher load current or ultra-low input voltage (<2.7 V) is required, accepting added design complexity. |
Compared with TPS61040DRVR and MAX17062ETA+, the LMR64010XMFX/NOPB offers the optimal balance of 40 V capability, 1A switch, internal compensation, and SOT-23-5 footprint - making it uniquely suited for space-limited, high-output-voltage boost designs without sacrificing ease of use.
Availability
LMR64010XMFX/NOPB is available at Aetrix Electronics and suitable for LED backlighting, LCD bias supplies, portable medical sensors, and industrial I/O module power requiring stable component supply and long-term production continuity.
Supply support for LMR64010XMFX/NOPB 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 leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in high-reliability DC-DC conversion.
The LMR64010XMFX/NOPB belongs to TI's SIMPLE SWITCHER® family - designed specifically for ease-of-use, high power density, and robust operation in cost-sensitive, space-constrained industrial and portable applications.
FAQ
What is the maximum output voltage achievable with the LMR64010XMFX/NOPB?
The LMR64010XMFX/NOPB supports output voltages up to 40 V, limited by its internal 40 V-rated N-channel MOSFET switch. This rating is confirmed in Absolute Maximum Ratings (SW pin voltage: −0.4 V to +40 V) and enables direct generation of high-bias rails for LCD panels or multi-LED strings without external switching components. Output voltage is set externally via resistive feedback divider.
Does the LMR64010XMFX/NOPB require external compensation components?
No, the LMR64010XMFX/NOPB is internally compensated - eliminating the need for external compensation networks. However, a feed-forward capacitor (CF, typically 120–220 pF) is mandatory for loop stability and must be placed between FB and ground per the recommended application circuit. Omitting CF risks oscillation due to phase margin degradation.
What is the minimum input voltage required for the LMR64010XMFX/NOPB to operate reliably?
The LMR64010XMFX/NOPB operates reliably down to 2.7 V input, as specified in Electrical Characteristics (VIN Min = 2.7 V). Below this, gate drive to the internal FET weakens, increasing RDS(ON) and reducing efficiency and output current capability. For sub-2.7 V inputs, alternative regulators such as the MAX17062 (1.8 V min) should be considered.
Can the LMR64010XMFX/NOPB drive a 35 V, 100 mA load from a 5 V input?
Yes - the LMR64010XMFX/NOPB can deliver 100 mA at 35 V from 5 V input. Efficiency curves (Figure 14) show ~82% efficiency at 35 V/100 mA with 5 V input. Duty cycle is ~82%, within the 87–93% maximum range. Thermal analysis using θJ-A = 265°C/W confirms junction temperature remains below 125°C under these conditions with adequate PCB copper.
What package type and marking does the LMR64010XMFX/NOPB use?
The LMR64010XMFX/NOPB uses the SOT-23-5 (DBV) package, 2.92 × 2.84 × 1.08 mm, with tape-and-reel packaging (3000 units per reel). Its top-side marking is "SF9B", as documented in TI's PACKAGE OPTION ADDENDUM. The "XMF" in the part number denotes SOT-23-5, "X" indicates large tape-and-reel quantity (3000), and "NOPB" confirms lead-free/RoHS compliance.
LMR64010XMFX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SIMPLE SWITCHER®
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 14V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- 40V (Switch)
- Current - Output:
- 1A (Switch)
- Frequency - Switching:
- 1.6MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMR64010XMFX/NOPB FAQ
1.How can I place an order for LMR64010XMFX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMR64010XMFX/NOPB 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 LMR64010XMFX/NOPB reliable?
The price and inventory of LMR64010XMFX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMR64010XMFX/NOPB is usually 5 days.
3.What payment methods are accepted for LMR64010XMFX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMR64010XMFX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMR64010XMFX/NOPB?
LMR64010XMFX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMR64010XMFX/NOPB 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 LMR64010XMFX/NOPB?
For technical support, including LMR64010XMFX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMR64010XMFX/NOPB requirements.
6.How does Aetrix verify that LMR64010XMFX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMR64010XMFX/NOPB 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 LMR64010XMFX/NOPB meets industry standards.
7.What is the process for return or replacement of LMR64010XMFX/NOPB?
All LMR64010XMFX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMR64010XMFX/NOPB, 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 LMR64010XMFX/NOPB part is unused and in its original packaging.
Return procedure for LMR64010XMFX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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