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Texas Instruments LM2830ZQMF/NOPB
- Part No.:
- LM2830ZQMF/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM2830ZQMF/NOPB.pdf
- Description:
- IC REG BUCK ADJ 1A SOT23-5
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
LM2830ZQMF/NOPB from Texas Instruments is a high-frequency, current-mode PWM step-down DC-DC regulator IC in a 5-pin SOT-23 package, delivering 1.0-A output at 3.3 V from a 5-V input. It integrates a 130-mΩ PMOS switch, features a fixed 3.0-MHz switching frequency, 0.6-V ±2% internal reference, and internal soft-start for controlled ramp-up.
For engineers reviewing the LM2830ZQMF/NOPB datasheet, LM2830ZQMF/NOPB pinout, LM2830ZQMF/NOPB application, or LM2830ZQMF/NOPB equivalent, key selection criteria include its 3.0-MHz operation enabling ultra-compact filter design, automotive-grade thermal shutdown at 165°C, and enable-controlled shutdown with 30-nA quiescent current.
Technical Context
The LM2830ZQMF/NOPB uses constant-frequency current-mode control with internal compensation, supporting duty cycles from 7% to 90% across a 3.0–5.5-V input range. Its 3.0-MHz oscillator enables stable regulation down to 0.6-V output while maintaining fast transient response via cycle-by-cycle current limiting (1.75-A typical) and overvoltage protection triggered at 15% above VFB.
Functional block integration includes an internal LDO for gate drive, artificial ramp for slope compensation, and UVLO with 430-mV hysteresis (2.73-V turn-on, 2.3-V turn-off). The EN pin provides logic-level on/off control, and thermal shutdown disables the PMOS switch above 165°C, re-enabling only after junction temperature drops to ~150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | Fixed 3.0 MHz - enables use of sub-3.3-µH inductors and 22-µF ceramic capacitors for minimal PCB footprint. |
| Output Current | 1.0 A continuous - supports core power in compact embedded systems without external current boosting. |
| 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 rails. |
| Feedback Reference | 0.600 V ±2% - sets output voltage via external resistor divider; enables 3.3-V output with R1/R2 = 4.5kΩ/10kΩ. |
| PMOS RDS(ON) | 130 mΩ (SOT-23) - limits conduction loss to ≤130 mW at 1-A load, supporting ≥93% peak efficiency at 5-V→3.3-V conversion. |
| Quiescent Current | 4.3–6.5 mA (active), 30 nA (shutdown) - allows battery-backed systems to maintain >1-year shelf life in standby. |
| Thermal Shutdown | 165°C activation - protects against sustained overload or poor heatsinking; auto-recovery at ~150°C. |
Pinout & Package
LM2830ZQMF/NOPB is housed in a 5-pin SOT-23 package (2.90 mm × 1.60 mm), optimized for low thermal resistance (RθJA = 165.2°C/W) and space-constrained layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW | Switch node output | Drives inductor and catch diode; swings between VIN and –0.3 V during operation; requires low-inductance layout to minimize EMI. |
| GND | Signal and power ground | Primary return path for feedback network and internal circuitry; bottom resistor of FB divider must be placed adjacent to this pin. |
| FB | Voltage feedback input | Senses output via resistor divider; internal 0.6-V reference compares against divider ratio to regulate VO with ±2% accuracy. |
| EN | Enable control input | Active-high logic interface; must not float or exceed VIN + 0.3 V; pulls device into 30-nA shutdown when low. |
| VIN | Power input supply | Accepts 3.0–5.5 V; powers internal control circuitry and PMOS gate driver; requires local 22-µF ceramic decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| 3.0-MHz fixed-frequency PWM | Enables <3-mm² total solution size using 3.3-µH inductor and 22-µF MLCCs-no ferrite bead or bulk capacitance needed. |
| Internal soft-start (600 µs) | Prevents inrush current spikes during startup by ramping reference from 0 V to 0.6 V, protecting input source and output caps. |
| Output overvoltage protection | Shuts off PMOS if FB exceeds 0.69 V (15% above 0.6 V), preventing damage to downstream 3.3-V logic during feedback fault. |
| Cycle-by-cycle current limit | Clamps switch current at 1.75 A (typical), ensuring safe operation under short-circuit or heavy transient loads without latch-up. |
| Undervoltage lockout (UVLO) | Disables regulation below 2.3 V (with 430-mV hysteresis), avoiding unstable operation during brownout or cold-start conditions. |
Applications
| Local 5-V to Vcore Step-Down Converters | Core Power in HDDs |
|---|---|
Use Scenario: Converting USB 5-V bus power to 3.3-V rail for microcontroller I/O and peripheral interfaces in portable diagnostic tools. IC Role / Device Role / Timing Role: Primary buck regulator providing regulated 3.3-V/1.0-A output with fast load-step response to handle bursty sensor data acquisition. Use Value: 3.0-MHz switching eliminates audible noise and reduces output ripple to <15 mVpp, ensuring clean power for ADC references and UART signaling. | Use Scenario: Supplying 3.3-V core voltage to HDD controller ASICs in consumer NAS enclosures operating from 5-V SMPS. IC Role / Device Role / Timing Role: High-density point-of-load regulator placed directly on HDD daughterboard to minimize IR drop and noise coupling. Use Value: 130-mΩ RDS(ON) and internal compensation deliver >92% efficiency at 1-A load, reducing board-level heat generation by 1.2 W vs. discrete solutions. |
| USB Powered Devices | DSL Modems |
Use Scenario: Powering FPGA configuration logic and USB PHY in bus-powered test adapters drawing up to 1.0 A from host port. IC Role / Device Role / Timing Role: Enable-controlled DC-DC converter that enters 30-nA shutdown when USB suspend is asserted. Use Value: Ultra-low shutdown current extends host battery life; 3.0-MHz operation avoids interference with USB 2.0 high-speed signaling (480 Mbps). | Use Scenario: Generating 3.3-V supply for DSL line driver and analog front-end in residential gateway modems with tight thermal constraints. IC Role / Device Role / Timing Role: Compact, thermally robust buck regulator mounted near heat-sensitive ADSL transceivers. Use Value: Thermal shutdown at 165°C prevents latch-up during ambient temperature excursions; SOT-23 footprint allows placement under metal shielding. |
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 | 2.25–3.0 MHz adjustable frequency; 0.6-V reference; 1.0-A rating; 6-pin WSON package. | Requires external frequency resistor; lacks integrated OVP; higher RDS(ON) (170 mΩ). | Preferred where programmable frequency or tighter output tolerance (±1%) is required; not drop-in due to different pinout and no OVP. |
| RT8059GJ6 | Fixed 3.0-MHz operation; 0.6-V reference; 1.0-A rating; 6-pin SOT-23-6 package; no internal OVP. | 6-pin layout increases board area; missing thermal shutdown and OVP require external supervision. | Lower BOM cost option for non-safety-critical consumer apps; requires external thermal monitoring and OVP circuitry. |
Compared with TPS62231DRYR and RT8059GJ6, the LM2830ZQMF/NOPB offers integrated overvoltage protection and thermal shutdown in a 5-pin SOT-23, eliminating external components needed for fault safety-critical for USB-powered and industrial edge devices where reliability is prioritized over marginal cost savings.
Availability
LM2830ZQMF/NOPB is available at Aetrix Electronics and suitable for USB-powered devices, DSL modems, and local 5-V to Vcore step-down converters requiring stable component supply, long-term lifecycle support, and automotive-grade thermal robustness.
Supply support for LM2830ZQMF/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 and embedded processing technologies, with decades of expertise in power management IC design.
The LM2830 product line delivers high-frequency, monolithic buck regulators targeting space-constrained, efficiency-critical applications such as portable instrumentation, networking endpoints, and automotive infotainment subsystems.
FAQ
What is the switching frequency of the LM2830ZQMF/NOPB?
The LM2830ZQMF/NOPB operates at a fixed 3.0-MHz switching frequency, as confirmed in the Electrical Characteristics table (FSW = 2.25–3.75 MHz, typical 3.0 MHz). This high frequency allows use of miniature surface-mount inductors and ceramic capacitors, minimizing total solution size. The LM2830ZQMF/NOPB variant is specifically the 3.0-MHz version within the LM2830 family.
Does the LM2830ZQMF/NOPB support adjustable output voltage?
Yes, the LM2830ZQMF/NOPB supports adjustable output voltage from 0.6 V to 4.5 V using an external resistor divider connected to the FB pin. The internal 0.600-V ±2% reference sets VO = 0.6 × (1 + R1/R2); for example, 3.3-V output requires R1/R2 ≈ 4.5. The LM2830ZQMF/NOPB does not support pin-strapped or digital voltage selection-adjustment is solely analog via external resistors.
What protection features are integrated into the LM2830ZQMF/NOPB?
The LM2830ZQMF/NOPB integrates thermal shutdown (165°C activation), output overvoltage protection (triggers at 15% above VFB), undervoltage lockout (2.73-V turn-on with 430-mV hysteresis), and cycle-by-cycle current limiting (1.75-A typical). These functions operate autonomously without external components. The LM2830ZQMF/NOPB does not include reverse-polarity or input overvoltage protection-those require external circuitry.
Can the LM2830ZQMF/NOPB be used in automotive applications?
The LM2830ZQMF/NOPB itself is not AEC-Q100 qualified; however, the pin-compatible LM2830Z-Q1 variant is Grade 1 qualified (–40°C to +125°C). While the LM2830ZQMF/NOPB operates across –40°C to +125°C per Recommended Operating Conditions, it lacks automotive-specific stress testing and documentation. For production automotive use, TI recommends LM2830Z-Q1; the LM2830ZQMF/NOPB is suitable for industrial and commercial environments with equivalent temperature requirements.
What is the maximum output current capability of the LM2830ZQMF/NOPB?
The LM2830ZQMF/NOPB is rated for 1.0-A continuous output current under recommended operating conditions (VIN = 3.0–5.5 V, TJ ≤ 125°C). Its cycle-by-cycle current limit activates at 1.75 A (typical), allowing brief surge handling. Sustained 1.0-A operation requires proper thermal management-using the SOT-23 package's exposed pad (if present) or PCB copper pour-to maintain junction temperature within limits. The LM2830ZQMF/NOPB datasheet confirms 1.0-A performance in typical application circuits.
LM2830ZQMF/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:
- 3MHz
- 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
LM2830ZQMF/NOPB FAQ
1.How can I place an order for LM2830ZQMF/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2830ZQMF/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 LM2830ZQMF/NOPB reliable?
The price and inventory of LM2830ZQMF/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2830ZQMF/NOPB is usually 5 days.
3.What payment methods are accepted for LM2830ZQMF/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2830ZQMF/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2830ZQMF/NOPB?
LM2830ZQMF/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2830ZQMF/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 LM2830ZQMF/NOPB?
For technical support, including LM2830ZQMF/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2830ZQMF/NOPB requirements.
6.How does Aetrix verify that LM2830ZQMF/NOPB is sourced from the original manufacturer or authorized distributors?
All LM2830ZQMF/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 LM2830ZQMF/NOPB meets industry standards.
7.What is the process for return or replacement of LM2830ZQMF/NOPB?
All LM2830ZQMF/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM2830ZQMF/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 LM2830ZQMF/NOPB part is unused and in its original packaging.
Return procedure for LM2830ZQMF/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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