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Texas Instruments LMR64010XMF/NOPB
- Part No.:
- LMR64010XMF/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMR64010XMF/NOPB.pdf
- Description:
- IC REG BOOST ADJ 1A SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,503
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Product details
Overview
LMR64010XMF/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 boost solutions for LCD bias, LED drivers, and embedded power rails.
For engineers reviewing the LMR64010XMF/NOPB datasheet, LMR64010XMF/NOPB pinout, LMR64010XMF/NOPB application, or LMR64010XMF/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 compatibility with WEBENCH® Power Designer.
Technical Context
The LMR64010XMF/NOPB uses peak-current-mode control with a 1.6 MHz oscillator, enabling fast transient response across wide input ranges. Its internal 1A N-channel MOSFET switch features 500–650 mΩ RDS(ON) and supports duty cycles up to 93% at 125°C junction temperature.
Feedback regulation relies on a precision 1.23 V reference at the FB pin with ±25 mV tolerance over temperature, and the device incorporates thermal shutdown and cycle-by-cycle current limiting for robust operation without external protection circuitry.
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 | Up to 40 V - set externally via resistive divider; enables high-voltage bias for LCDs and white LEDs. |
| Switch Current Limit | 1.0 A typical - limits peak inductor current to prevent saturation and ensure stable boost operation. |
| Switching Frequency | 1.6 MHz nominal - allows use of small 2.2–10 µH inductors and ceramic capacitors for space-constrained designs. |
| Shutdown Quiescent Current | <1 µA - extends battery life in portable systems by disabling regulator while retaining low leakage. |
| Feedback Reference Voltage | 1.230 V ±25 mV - defines output voltage accuracy; sets regulation point independent of load or input variation. |
| Thermal Resistance θJ-A | 265 °C/W - determines maximum power dissipation before thermal shutdown in SOT-23-5 package. |
Pinout & Package
SOT-23-5 package (DBV0005A), dimensions 2.92 × 2.84 × 1.08 mm, moisture sensitivity level 1, lead finish Sn, rated for −40°C to +125°C operating junction temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW | Drain of internal N-FET switch | Connects to inductor and Schottky diode anode; carries pulsed 1A switch current and must be routed with minimal trace inductance. |
| GND | Analog and power ground | Common return for feedback, input/output capacitors, and switch; requires low-impedance connection to minimize noise and thermal rise. |
| FB | Feedback input | Monitors output voltage via resistive divider; regulates output by comparing to 1.23 V internal reference. |
| VIN | Input supply | Accepts 2.7–14 V; powers internal circuitry and supplies gate drive for internal FET; requires local 2.2 µF ceramic decoupling. |
| SHDN | Logic-level shutdown control | Active-high input; pulls low to disable regulator and reduce IQ to <1 µA; must not float and should be tied to VIN if unused. |
Key Features
| Feature | Design Value |
|---|---|
| Internally compensated control loop | Eliminates need for external compensation components; reduces BOM count and layout sensitivity. |
| Cycle-by-cycle current limiting | Prevents inductor saturation and overcurrent damage during startup or overload without external sensing. |
| 1.6 MHz fixed-frequency operation | Enables use of sub-10 µH inductors and 4.7–10 µF ceramic output capacitors for ultra-compact PCB footprints. |
| 40 V integrated switch | Supports output voltages ≥16 V directly; avoids need for external high-voltage switch or cascaded stages. |
| Low shutdown IQ <1 µA | Minimizes battery drain in always-on systems; suitable for energy-harvesting and long-life portable applications. |
Applications
| LCD Display Bias Supply | White LED Driver |
|---|---|
Use Scenario: Generating 18–30 V bias for TFT-LCD source/gate drivers from a 3.3 V or 5 V system rail. IC Role / Device Role / Timing Role: Step-up regulator providing regulated high-voltage DC output with tight line/load regulation. Use Value: Enables single-rail system design without external transformers or charge pumps; achieves >90% efficiency at 100 mA load. | Use Scenario: Driving strings of white LEDs (3–10 V forward drop) requiring constant-current bias up to 40 V in portable lighting. IC Role / Device Role / Timing Role: Constant-voltage boost controller interfaced with external current-sense resistor and PWM dimming. Use Value: Delivers stable LED brightness across battery discharge; supports analog and PWM dimming without flicker due to 1.6 MHz switching. |
| Embedded System Auxiliary Rail | Industrial Sensor Signal Conditioning |
Use Scenario: Creating isolated 12 V or 15 V auxiliary supply for op-amps, ADC references, or RS-485 transceivers in space-limited IoT nodes. IC Role / Device Role / Timing Role: Compact, self-contained boost converter with internal switch and compensation. Use Value: Reduces solution size by >50% vs. discrete boost designs; maintains regulation under dynamic load steps typical of sensor burst transmission. | Use Scenario: Powering high-precision analog front-ends (e.g., strain gauge bridges, thermocouple amps) requiring low-noise, stable 5 V or 10 V rails. IC Role / Device Role / Timing Role: Low-ripple boost regulator feeding LDO post-regulator or directly powering low-IQ signal chain ICs. Use Value: Achieves <10 mVPP output ripple with proper layout; thermal shutdown prevents drift-induced measurement errors during extended operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61040DRVR | 28 V max output, 0.5 A switch, 1.5 MHz switching, same SOT-23-6 package but different pinout. | Limited to ≤28 V outputs; lower current capacity reduces max load power by ~50%. | Choose when output voltage ≤28 V and board layout accommodates pinout change and reduced current capability. |
| MAX77818EWL+T | 40 V output, 1.2 A switch, 2.2 MHz switching, WLP-12 package, integrated soft-start and enable sequencing. | Higher integration adds complexity; WLP-12 requires fine-pitch assembly and lacks SHDN logic-level compatibility. | Choose for higher-frequency, smaller-inductor designs where WLP-12 footprint and advanced features justify requalification. |
Compared with TPS61040DRVR and MAX77818EWL+T, the LMR64010XMF/NOPB offers the best balance of 40 V capability, 1 A current, SOT-23-5 simplicity, and <1 µA shutdown-making it optimal for cost-sensitive, space-constrained boost applications where full feature integration is unnecessary.
Availability
LMR64010XMF/NOPB is available at Aetrix Electronics and suitable for LCD display bias, white LED driving, and embedded auxiliary power rails requiring stable component supply, long-term manufacturability, and RoHS-compliant packaging.
Supply support for LMR64010XMF/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 ICs, with decades of expertise in high-reliability power conversion design.
The LMR64010XMF/NOPB belongs to TI's SIMPLE SWITCHER® family, engineered for ease-of-use in space-constrained DC-DC applications where minimal external components, internal compensation, and robust protection are critical.
FAQ
What is the maximum output voltage achievable with the LMR64010XMF/NOPB?
The LMR64010XMF/NOPB supports output voltages up to 40 V, determined by its internal 40 V-rated N-channel MOSFET switch. This rating is absolute - exceeding 40 V risks permanent damage. Output voltage is set externally using a resistive divider connected to the FB pin, with the reference voltage fixed at 1.23 V. The LMR64010XMF/NOPB datasheet confirms this limit under Absolute Maximum Ratings and specifies operation up to 40 V in both Electrical Characteristics and Applications sections.
Does the LMR64010XMF/NOPB require external compensation components?
No, the LMR64010XMF/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 the FB pin and ground. This capacitor introduces a zero in the control loop; omitting it causes oscillation. The LMR64010XMF/NOPB datasheet explicitly states "feed-forward capacitor CF is required for stability" and provides calculation guidance in the Application Information section.
What is the recommended inductor value for a 5 V to 12 V boost application using the LMR64010XMF/NOPB?
For a 5 V to 12 V boost application, TI recommends a 10 µH inductor - as shown in the Typical Application Circuit (Figure 17) and validated in the Inductance Value section. This value ensures continuous conduction mode at typical loads (~330 mA), minimizes output ripple, and balances size versus efficiency. The LMR64010XMF/NOPB datasheet notes that inductors from 2.7 µH to 10 µH are viable depending on load and ripple requirements, but 10 µH is the reference design value for optimal performance across temperature and line regulation.
Can the LMR64010XMF/NOPB operate from a single-cell Li-ion battery?
Yes, the LMR64010XMF/NOPB operates from 2.7 V minimum input, making it compatible with discharged single-cell Li-ion batteries (2.7–4.2 V range). At low VIN (e.g., 2.7 V), RDS(ON) increases slightly and maximum duty cycle rises, but the device maintains regulation up to 40 V output. Efficiency drops at low input voltage - e.g., ~82% at 2.7 V → 12 V/100 mA - as confirmed in Figure 9 of the LMR64010XMF/NOPB datasheet.
What type of diode is required for the LMR64010XMF/NOPB boost circuit?
A Schottky diode is required for the LMR64010XMF/NOPB boost circuit to minimize forward voltage drop and switching losses. For output voltages ≤15 V, TI recommends the MBR0520 (20 V rating); for 15–25 V, the MBR0530 (30 V); and for ≥25 V, the MBR0540 (40 V). The LMR64010XMF/NOPB datasheet specifies these part numbers in the Selecting Diodes section and warns against standard PN diodes due to excessive reverse recovery losses at 1.6 MHz.
LMR64010XMF/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
LMR64010XMF/NOPB FAQ
1.How can I place an order for LMR64010XMF/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMR64010XMF/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 LMR64010XMF/NOPB reliable?
The price and inventory of LMR64010XMF/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMR64010XMF/NOPB is usually 5 days.
3.What payment methods are accepted for LMR64010XMF/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMR64010XMF/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMR64010XMF/NOPB?
LMR64010XMF/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMR64010XMF/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 LMR64010XMF/NOPB?
For technical support, including LMR64010XMF/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMR64010XMF/NOPB requirements.
6.How does Aetrix verify that LMR64010XMF/NOPB is sourced from the original manufacturer or authorized distributors?
All LMR64010XMF/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 LMR64010XMF/NOPB meets industry standards.
7.What is the process for return or replacement of LMR64010XMF/NOPB?
All LMR64010XMF/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMR64010XMF/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 LMR64010XMF/NOPB part is unused and in its original packaging.
Return procedure for LMR64010XMF/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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