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Texas Instruments LM2830XQMF/NOPB
- Part No.:
- LM2830XQMF/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM2830XQMF/NOPB.pdf
- Description:
- IC REG BUCK ADJ 1A SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,820
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Product details
Overview
LM2830XQMF/NOPB from Texas Instruments is a monolithic, high-frequency PWM step-down DC-DC regulator in a 5-pin SOT-23 package, delivering up to 1.0 A output current with 0.6 V internal reference, 1.6 MHz fixed switching frequency, and 130 mΩ PMOS switch. It regulates 3.0–5.5 V input to adjustable 0.6–4.5 V output for compact point-of-load power in USB-powered devices and set-top boxes.
For engineers reviewing the LM2830XQMF/NOPB datasheet, LM2830XQMF/NOPB pinout, LM2830XQMF/NOPB application, or LM2830XQMF/NOPB equivalent, key selection criteria include its 1.6 MHz operation enabling sub-3 mm² solution size, current-mode control for fast transient response, internal soft-start limiting inrush, thermal shutdown at 165°C, and automotive-grade variant availability (LM2830X-Q1).
Technical Context
The LM2830XQMF/NOPB implements constant-frequency current-mode PWM control with internal compensation, using a 0.6 V ±2% reference and feedback loop that compares FB voltage against VREF. Its 1.6 MHz oscillator enables stable regulation with minimal external components while supporting duty cycles from 5% to 94% across the 3.0–5.5 V input range.
Functional safety features include cycle-by-cycle current limit (1.2–1.75 A), undervoltage lockout with 430 mV hysteresis (2.3–2.9 V), overvoltage protection triggering at 15% above VREF, and thermal shutdown with 15°C hysteresis (165°C trip, ~150°C recovery). Shutdown quiescent current is 30 nA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | 1.6 MHz - Enables use of ≤3.3 µH inductors and 22 µF ceramic capacitors for ultra-compact PCB layout. |
| Output Current | 1.0 A continuous - Supports core power in HDDs and local Vcore conversion without external current boosting. |
| Input Voltage Range | 3.0 V to 5.5 V - Matches standard USB 5 V and Li-ion battery rails; UVLO prevents startup below 2.3 V. |
| Feedback Reference | 0.600 V ±2% - Sets output voltage via resistor divider; enables 0.6 V minimum output with tight regulation. |
| PMOS RDS(ON) | 130 mΩ - Limits conduction loss at 1 A load; contributes to ≥93% peak efficiency at 5 V→3.3 V/1 A. |
| Quiescent Current | 5 mA (active), 30 nA (shutdown) - Enables low-power standby modes in portable electronics. |
| Thermal Shutdown | 165°C junction - Protects against sustained overload or poor heatsinking; recovers at ~150°C. |
Pinout & Package
LM2830XQMF/NOPB uses the 5-pin SOT-23 package (2.90 mm × 1.60 mm body), optimized for thermal performance and board space efficiency in high-density applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW | Switch node output | Connects to inductor and catch diode anode; carries high dv/dt switching waveform and peak currents up to 1.75 A. |
| GND | Signal and power ground | Primary return path for feedback network and internal circuitry; requires low-inductance connection to PCB ground plane. |
| FB | Voltage feedback input | Senses output via resistor divider; internal 0.6 V reference sets regulation point; bias current <100 nA minimizes divider error. |
| EN | Enable control input | Active-high logic interface; must be pulled high (e.g., to VIN) or driven; floating or >VIN+0.3 V damages device. |
| VIN | Power input supply | Accepts 3.0–5.5 V; powers internal LDO and gate driver; requires local 22 µF ceramic input capacitor for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Internal Soft-Start | Ramps reference from 0 V to 0.6 V over ~600 µs, limiting inrush current during power-up and preventing output overshoot. |
| Current-Mode Control | Provides inherent cycle-by-cycle current limiting and fast transient response without external compensation components. |
| Overvoltage Protection | Shuts down SW when FB exceeds 15% above 0.6 V (i.e., >0.69 V), protecting downstream loads from fault conditions. |
| Undervoltage Lockout | Enables operation only above 2.73 V (typical) with 430 mV hysteresis, preventing erratic behavior during brownout or ramp-up. |
| Thermal Shutdown | Disables switching at 165°C junction temperature and remains off until temperature falls to ~150°C, ensuring safe thermal recovery. |
Applications
| Local 5-V to Vcore Step-Down Converters | Core Power in HDDs |
|---|---|
Use Scenario: Regulating 5 V USB or main rail to 1.2–1.8 V CPU core voltage in portable SSDs or embedded controllers. IC Role / Device Role / Timing Role: Primary buck regulator providing tightly regulated, low-noise core supply with fast load-step response. Use Value: 1.6 MHz operation allows <3 mm² total solution size; 130 mΩ RDS(ON) sustains 93% efficiency at 1 A, reducing thermal load on small PCBs. | Use Scenario: Powering spindle motor drivers and controller ICs in 2.5-inch hard disk drives where space and thermal headroom are constrained. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter delivering stable 3.3 V or 5 V from main 12 V rail via intermediate stage. Use Value: Internal soft-start prevents mechanical shock from sudden motor startup; current-mode control maintains regulation during rapid seek-current transients. |
| Set-Top Boxes | USB Powered Devices |
Use Scenario: Generating 3.3 V logic supply and 1.2 V SoC core voltage from 5 V USB-C or wall adapter input in compact media streamers. IC Role / Device Role / Timing Role: Dual-output-capable buck regulator (with external divider) supplying multiple voltage domains from single input. Use Value: 5-pin SOT-23 footprint integrates easily into dense layouts; 30 nA shutdown current extends battery backup runtime during standby. | Use Scenario: Providing regulated 3.3 V output from variable 4.5–5.5 V USB port for portable audio DACs, Bluetooth modules, or sensor hubs. IC Role / Device Role / Timing Role: Input-voltage-tolerant buck converter maintaining regulation across USB voltage droop and cable loss. Use Value: 3.0–5.5 V input range accommodates worst-case USB drop; 1.6 MHz switching avoids audible noise in sensitive analog circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2830ZQMF/NOPB | 3.0 MHz switching frequency, 195 mΩ RDS(ON), 82–90% max duty cycle | Better suited for ultra-low-profile designs requiring smallest possible inductors (<1.5 µH), but lower efficiency at high load due to higher RDS(ON) | Select LM2830ZQMF/NOPB when board height is critical and load current stays below 0.7 A. |
| TPS62231DRVR | 3.0 MHz, 2.0 A output, 0.6 V reference, integrated synchronous rectifier | Higher current capability and ~5% higher efficiency at 1 A due to synchronous architecture, but requires different feedback and layout | Choose TPS62231DRVR when upgrading to synchronous topology is acceptable and 2 A headroom is needed. |
Compared with LM2830XQMF/NOPB, LM2830ZQMF/NOPB trades higher switching frequency for reduced efficiency at full load, while TPS62231DRVR offers synchronous rectification and doubled current rating at the cost of increased design complexity and footprint.
Availability
LM2830XQMF/NOPB is available at Aetrix Electronics and suitable for USB powered devices, set-top boxes, and local 5-V to Vcore step-down converters requiring stable component supply, long-term lifecycle support, and automotive-qualified alternatives (LM2830X-Q1).
Supply support for LM2830XQMF/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 specializing in analog and embedded processing technologies, with leadership in power management ICs for industrial, automotive, and consumer markets.
The LM2830 product line delivers high-frequency, low-external-component buck regulators targeting space-constrained applications such as portable electronics and automotive infotainment systems where thermal performance and fast transient response are critical.
FAQ
What is the recommended input capacitor for LM2830XQMF/NOPB?
The recommended input capacitor for LM2830XQMF/NOPB is a 22 µF, 6.3 V X5R multilayer ceramic capacitor (e.g., TDK C3216X5ROJ226M) placed as close as possible to the VIN and GND pins. This value ensures stable operation under 1.6 MHz switching, limits input voltage droop during transients, and provides sufficient RMS current handling. Leaded or high-ESL capacitors are not recommended due to impedance rise at high frequency.
Does LM2830XQMF/NOPB require an external catch diode?
Yes, LM2830XQMF/NOPB requires an external Schottky catch diode (e.g., Toshiba CRS08) connected between SW and GND. The device uses a PMOS high-side switch and lacks synchronous rectification, so the diode provides the return path for inductor current during the off-time. A low forward-voltage (≤0.3 V), 1.5 A rated Schottky diode is specified to maximize efficiency and minimize thermal stress.
How is output voltage set on LM2830XQMF/NOPB?
Output voltage on LM2830XQMF/NOPB is set using a resistive divider from VO to GND, with the FB pin connected to the divider midpoint. The formula is VO = 0.6 V × (1 + R1/R2), where R2 connects FB to GND and R1 connects VO to FB. For a 3.3 V output, typical values are R1 = 15 kΩ and R2 = 15 kΩ. The 0.6 V internal reference has ±2% tolerance, directly determining output accuracy.
What thermal considerations apply to LM2830XQMF/NOPB in SOT-23 package?
LM2830XQMF/NOPB in the 5-pin SOT-23 package has a junction-to-ambient thermal resistance (RθJA) of 165.2°C/W. To maintain safe operation at 1 A continuous load, ensure adequate copper area (≥100 mm²) connected to the GND pin for heat spreading, avoid enclosing the device, and verify junction temperature stays below 125°C under worst-case ambient and power dissipation. Thermal shutdown activates at 165°C.
Is LM2830XQMF/NOPB qualified for automotive applications?
LM2830XQMF/NOPB itself is not automotive-qualified, but its pin-compatible variant LM2830X-Q1 is AEC-Q100 Grade 1 qualified (–40°C to +125°C operating junction temperature). Both share identical electrical specifications and pinout; only LM2830X-Q1 undergoes extended reliability testing and is marked with automotive traceability. For automotive designs, LM2830X-Q1 must be selected instead of LM2830XQMF/NOPB.
LM2830XQMF/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
LM2830XQMF/NOPB FAQ
1.How can I place an order for LM2830XQMF/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2830XQMF/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 LM2830XQMF/NOPB reliable?
The price and inventory of LM2830XQMF/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2830XQMF/NOPB is usually 5 days.
3.What payment methods are accepted for LM2830XQMF/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2830XQMF/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2830XQMF/NOPB?
LM2830XQMF/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2830XQMF/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 LM2830XQMF/NOPB?
For technical support, including LM2830XQMF/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2830XQMF/NOPB requirements.
6.How does Aetrix verify that LM2830XQMF/NOPB is sourced from the original manufacturer or authorized distributors?
All LM2830XQMF/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 LM2830XQMF/NOPB meets industry standards.
7.What is the process for return or replacement of LM2830XQMF/NOPB?
All LM2830XQMF/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM2830XQMF/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 LM2830XQMF/NOPB part is unused and in its original packaging.
Return procedure for LM2830XQMF/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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