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Texas Instruments LM2830XQMFE/NOPB
- Part No.:
- LM2830XQMFE/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM2830XQMFE/NOPB.pdf
- Description:
- IC REG BUCK ADJ 1A SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:291
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Product details
Overview
LM2830XQMFE/NOPB from Texas Instruments is a monolithic, high-frequency PWM step-down DC-DC regulator in a 5-pin SOT-23 package, delivering 1.0-A output current with internal 130-mΩ PMOS switch, 1.6-MHz fixed switching frequency, and 0.6-V ±2% internal reference voltage. It regulates 3.0–5.5-V input to adjustable 0.6–4.5-V output for compact local power conversion in space-constrained USB-powered devices and set-top boxes.
For engineers reviewing the LM2830XQMFE/NOPB datasheet, LM2830XQMFE/NOPB pinout, LM2830XQMFE/NOPB application, or LM2830XQMFE/NOPB equivalent, key selection criteria include its 1.6-MHz switching frequency enabling sub-3-mm² solution size, current-mode control for fast transient response, thermal shutdown at 165°C, soft-start for inrush current limiting, and 30-nA shutdown quiescent current for battery-sensitive designs.
Technical Context
The LM2830XQMFE/NOPB implements constant-frequency current-mode PWM control with internal compensation, supporting duty cycles from 5% to 94% across its 3.0–5.5-V input range. Its 1.6-MHz oscillator enables use of ≤3.3-µH inductors and 22-µF ceramic capacitors while maintaining stable regulation down to 0.6-V output.
It integrates undervoltage lockout (UVLO) with 2.73-V turn-on threshold and 430-mV hysteresis, cycle-by-cycle current limit (1.2–1.75-A min/typ), overvoltage protection triggered at 15% above VFB, and thermal shutdown that disables the PMOS switch above 165°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | 1.6 MHz - enables use of small 3.3-µH inductors and 22-µF MLCCs, minimizing PCB footprint |
| Output Current | 1.0 A continuous - supports core power rails in HDDs and USB peripherals without external boost |
| Input Voltage Range | 3.0 V to 5.5 V - compatible with single-cell Li-ion, USB 5-V, and regulated 3.3-V/5-V system rails |
| Feedback Reference | 0.600 V ±2% - sets output voltage via resistor divider; enables 1.2-V, 1.8-V, 3.3-V, and other common rail voltages |
| PMOS RDS(ON) | 130 mΩ - limits conduction loss at 1-A load to ~130 mW, supporting >90% peak efficiency |
| Quiescent Current | 30 nA in shutdown - preserves battery life in always-on standby applications |
| Thermal Shutdown | 165°C - protects against sustained overload or poor heatsinking in enclosed enclosures |
Pinout & Package
LM2830XQMFE/NOPB uses a 5-pin SOT-23 package (2.90 mm × 1.60 mm) with exposed pad not connected internally; thermal path relies on PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW | Switch node output | Connects to inductor and catch diode anode; swings between VIN and –0.3 V during operation |
| GND | Signal and power ground | Reference for feedback network and internal circuitry; must be placed adjacent to bottom feedback resistor |
| FB | Voltage feedback input | Senses divided output voltage; internal 0.6-V reference compares against this node to regulate VO |
| EN | Enable control input | Logic-high (>1.8 V) enables regulation; floating or >VIN+0.3 V damages device; pull-up to VIN recommended |
| VIN | Power input supply | Supplies both control circuitry and PMOS switch; requires 22-µF low-ESL ceramic input capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Internal soft-start | Ramps reference voltage over ~600 µs to limit inrush current and prevent output overshoot during startup |
| Current-mode PWM control | Provides inherent cycle-by-cycle current limiting and fast transient response without external compensation |
| Overvoltage protection | Disables SW when FB exceeds 15% above 0.6 V, preventing damage to downstream 3.3-V or 1.8-V ICs |
| Undervoltage lockout | Prevents operation below 2.73 V (typ) and ensures clean start-up with 430-mV hysteresis to avoid oscillation |
| Thermal shutdown with hysteresis | Shuts down at 165°C and re-enables only after junction cools to ~150°C, preventing thermal runaway |
Applications
| USB Powered Devices | Set-Top Boxes |
|---|---|
Use Scenario: Powering HDMI interface ICs, USB PHYs, and microcontrollers from a 5-V USB port in portable media adapters. IC Role / Device Role / Timing Role: Primary step-down regulator converting 5-V USB input to stable 3.3-V or 1.2-V core voltage with <100-µs transient recovery. Use Value: 1.6-MHz switching allows full regulation within 3.5 mm × 3.0 mm PCB area, meeting strict mechanical constraints of dongle form factors. | Use Scenario: Generating 1.2-V CPU core voltage and 3.3-V I/O rail from a shared 5-V system supply in consumer STB mainboards. IC Role / Device Role / Timing Role: Local point-of-load converter with current-mode control ensuring stable output under dynamic video decoding loads. Use Value: 130-mΩ PMOS switch and 93% peak efficiency minimize heat generation in thermally constrained plastic enclosures. |
| HDD Core Power | Automotive Infotainment |
Use Scenario: Supplying 1.2-V logic voltage to HDD controller ASICs in external storage enclosures powered by 5-V USB or 12-V DC-DC. IC Role / Device Role / Timing Role: High-efficiency buck regulator operating from intermediate 5-V rail, delivering 1-A continuous current with <2% load regulation. Use Value: Internal soft-start prevents inrush current from tripping upstream USB port current limits during drive spin-up. | Use Scenario: Providing 3.3-V supply to CAN transceivers and display controllers in automotive head units using 5-V system rail. IC Role / Device Role / Timing Role: Non-automotive-grade buck regulator used in non-safety-critical subsystems where AEC-Q100 is not mandated. Use Value: 30-nA shutdown current extends battery hold-up time during vehicle ignition-off periods without requiring additional enable sequencing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYR | 1.6-MHz sync buck, 1.0-A, 0.6-V ref, but uses integrated MOSFETs and supports 2.05–6.0-V input | Enables smaller solution size due to integrated high-side/low-side FETs; lacks separate SW node for external diode option | Select when board space is critical and external Schottky diode is unnecessary |
| MP2101DQ-LF-Z | 1.5-MHz async buck, 1.0-A, 0.6-V ref, 150-mΩ high-side MOSFET, but no OVP or UVLO hysteresis | Lower BOM cost with fewer protection features; requires external soft-start capacitor for inrush control | Select for cost-sensitive industrial applications where full automotive-grade protection is not required |
Compared with TPS62231DRYR and MP2101DQ-LF-Z, the LM2830XQMFE/NOPB offers unique flexibility with its accessible SW node for external diode selection, robust OVP/UVLO hysteresis, and proven 1.6-MHz stability with minimal external components-making it ideal for USB and consumer electronics where design simplicity and reliability outweigh integration density.
Availability
LM2830XQMFE/NOPB is available at Aetrix Electronics and suitable for USB powered devices, set-top boxes, HDD core power supplies, and automotive infotainment subsystems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for LM2830XQMFE/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 company designing analog and embedded processing chips for industrial, automotive, and consumer applications.
The LM2830 product line delivers high-frequency, low-external-component buck regulators optimized for space-constrained USB, portable, and consumer electronics applications requiring fast transient response and high power density.
FAQ
What is the maximum output current capability of the LM2830XQMFE/NOPB?
The LM2830XQMFE/NOPB delivers up to 1.0-A continuous output current under recommended operating conditions (TJ ≤ 125°C, VIN = 3.0–5.5 V). Its cycle-by-cycle current limit is specified from 1.2 A (min) to 1.75 A (typ), ensuring safe operation into short-circuit or heavy transient loads. Derating is required above 85°C ambient due to thermal limitations of the SOT-23 package.
How does the LM2830XQMFE/NOPB set its output voltage?
The LM2830XQMFE/NOPB sets output voltage using an external resistor divider connected between VO, FB, and GND. With a precise 0.600-V ±2% internal reference, the output is calculated as VO = 0.6 × (1 + R1/R2). For example, R1 = 15 kΩ and R2 = 15 kΩ yields 1.2 V. The FB pin draws only 0.1–100 nA, minimizing divider current error.
Does the LM2830XQMFE/NOPB require external compensation components?
No, the LM2830XQMFE/NOPB uses internal compensation with current-mode control architecture, eliminating the need for external compensation networks. This simplifies design and reduces BOM count-only input/output capacitors, inductor, feedback resistors, and optional catch diode are required for full operation.
What protection features are integrated into the LM2830XQMFE/NOPB?
The LM2830XQMFE/NOPB integrates thermal shutdown (165°C trip, ~150°C restart), output overvoltage protection (triggered at 15% above VFB), undervoltage lockout (2.73-V enable with 430-mV hysteresis), cycle-by-cycle current limiting, and soft-start. These features ensure robust operation in unregulated or noisy input environments without external supervision circuitry.
Can the LM2830XQMFE/NOPB operate with a 3.3-V input to generate 1.2-V output?
Yes, the LM2830XQMFE/NOPB supports 3.0–5.5-V input and can regulate 1.2-V output at 1.0-A from a 3.3-V source. At this condition, the typical duty cycle is ~36%, well within the 5–94% operational range. Efficiency remains >88% (typ) per datasheet curves, and thermal performance is enhanced due to lower input-output differential.
LM2830XQMFE/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 4.5V
- Current - Output:
- 1A
- Frequency - Switching:
- 1.6MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LM2830XQMFE/NOPB FAQ
1.How can I place an order for LM2830XQMFE/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2830XQMFE/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 LM2830XQMFE/NOPB reliable?
The price and inventory of LM2830XQMFE/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2830XQMFE/NOPB is usually 5 days.
3.What payment methods are accepted for LM2830XQMFE/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2830XQMFE/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2830XQMFE/NOPB?
LM2830XQMFE/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2830XQMFE/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 LM2830XQMFE/NOPB?
For technical support, including LM2830XQMFE/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2830XQMFE/NOPB requirements.
6.How does Aetrix verify that LM2830XQMFE/NOPB is sourced from the original manufacturer or authorized distributors?
All LM2830XQMFE/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 LM2830XQMFE/NOPB meets industry standards.
7.What is the process for return or replacement of LM2830XQMFE/NOPB?
All LM2830XQMFE/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM2830XQMFE/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 LM2830XQMFE/NOPB part is unused and in its original packaging.
Return procedure for LM2830XQMFE/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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