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Texas Instruments TPS61030RSARG4
- Part No.:
- TPS61030RSARG4
- Manufacturer:
- Texas Instruments
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
TPS61030RSARG4.pdf
- Description:
- IC REG BOOST ADJ 3.6A 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,868
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Product details
Overview
TPS61030RSARG4 from Texas Instruments is a synchronous boost DC-DC converter IC designed for single-cell Li-ion or dual/triple-cell alkaline/NiMH battery-powered systems. It delivers up to 1000 mA at 5 V from 1.8-V input, features 96% peak efficiency, 600-kHz fixed-frequency PWM control, and integrated low-battery comparator with 500-mV threshold on LBI pin.
For engineers reviewing the TPS61030RSARG4 datasheet, TPS61030RSARG4 pinout, TPS61030RSARG4 application, or TPS61030RSARG4 equivalent, key selection considerations include its 4-A switch current limit, Power Save mode operation, load disconnect during shutdown, QFN-16 (4 mm × 4 mm) package with PowerPAD™ thermal pad, and compatibility with adjustable output voltage via FB pin.
Technical Context
The TPS61030RSARG4 implements a fixed-frequency, multiple feedforward PWM controller that monitors VBAT, VOUT, and NMOS switch voltage drop to directly adjust duty cycle-bypassing slow error-amplifier loop for fast transient response. Its synchronous rectifier integrates N-channel and P-channel MOSFETs with 55-mΩ RDS(on) per switch, enabling high efficiency while eliminating external Schottky diode losses.
It supports three functional modes via SYNC pin: Power Save mode (SYNC = GND), fixed-frequency operation (SYNC = VBAT), or external clock synchronization (500–700 kHz). The device includes undervoltage lockout (~1.6 V), soft-start with precharge and reduced startup current limit, overtemperature protection (140°C), and integrated antiringing switch to suppress SW-node ringing in discontinuous conduction mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Up to 1000 mA at 5 V from 1.8-V input - enables powering USB peripherals or RF modules from low-voltage batteries. |
| Switch Current Limit | 4000 mA typical - sets maximum inductor/switch stress and defines safe operating area under short-circuit or heavy-load transients. |
| Feedback Voltage | 500 mV ±10 mV - determines output voltage accuracy when using external resistor divider on FB pin. |
| Quiescent Current | 20 µA typical - minimizes battery drain in standby, critical for always-on portable devices. |
| Oscillator Frequency | 600 kHz nominal - balances EMI performance, inductor size, and efficiency across load range. |
| Input Voltage Range | 1.8 V to 5.5 V - supports full discharge curve of one-cell Li-ion (2.5–4.2 V) and two/three-cell alkaline (2.0–4.5 V). |
| Thermal Resistance | RθJA = 35.5°C/W (QFN) - requires PCB thermal pad connection to ground plane for reliable 1-A operation at 85°C ambient. |
Pinout & Package
TPS61030RSARG4 uses a 16-pin QFN package (4.00 mm × 4.00 mm) with exposed PowerPAD™ thermal pad requiring solder connection to PGND for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW (Pins 3,4) | Boost switch node | Connects to inductor and internal NMOS/PNOS switches; high dv/dt node requiring tight layout and minimal trace length. |
| VBAT (Pin 8) | Main power input | Accepts 1.8–5.5 V battery input; feeds internal bias rails and high-side switch; UVLO triggers below ~1.6 V. |
| VOUT (Pins 1,15,16) | Regulated output | Delivers up to 5.5 V; multiple pins reduce IR drop and improve current handling for high-output-current designs. |
| FB (Pin 14) | Feedback input | Senses output via resistor divider; 500-mV reference enables precise adjustable output voltage configuration. |
| EN (Pin 11) | Enable control | Active-high logic input; pulls device into full shutdown with load disconnect and <1-µA quiescent current. |
| LBI (Pin 9) | Low-battery sense input | Accepts scaled battery voltage; comparator triggers at 500 mV with 10-mV hysteresis for stable low-battery flag generation. |
| LBO (Pin 12) | Low-battery open-drain output | Drives external pull-up to signal system MCU when battery falls below programmed threshold. |
| SYNC (Pin 10) | Mode control/synchronization | Selects Power Save (GND), fixed frequency (VBAT), or external clock sync (500–700 kHz square wave). |
| PGND (Pins 5,6,7) | Power ground return | Carries high-switching currents; must be connected to PowerPAD™ and routed separately from signal GND. |
| GND (Pin 13) | Signal/logic ground | Reference for FB, EN, SYNC, LBI; connects to PGND at single point near GND pin to avoid noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| 96% peak efficiency | Enables >10-hour runtime on coin-cell or AA batteries powering 3.3-V microcontrollers without thermal derating. |
| Load disconnect during shutdown | Prevents battery drain through output capacitors when EN = low - eliminates need for external ideal diode or load switch. |
| Integrated antiringing switch | Clamps SW-node ringing to VBAT in DCM, reducing radiated EMI by >10 dB and easing FCC/CE compliance. |
| Power Save mode | Maintains >85% efficiency down to 100-µA load - extends battery life in sensor wake-up or BLE advertising intervals. |
| 4-A peak switch current limit | Supports robust start-up into large output capacitance or short-duration pulse loads (e.g., GSM transmit bursts). |
Applications
| Portable Medical Sensors | Wireless Audio Transmitters |
|---|---|
|
Use Scenario: Wearable glucose monitor powered by CR2032 coin cell requiring regulated 3.3-V rail for ADC, BLE radio, and display driver. IC Role / Device Role / Timing Role: Primary power conversion IC providing stable 3.3-V output from 2.0–3.0-V battery range with ultra-low quiescent current. Use Value: 20-µA quiescent current and load disconnect extend battery life beyond 6 months; adjustable FB allows precise 3.3-V setting. |
Use Scenario: Bluetooth headset with Li-ion battery (2.8–4.2 V) powering 5-V audio DAC and Class-D amplifier. IC Role / Device Role / Timing Role: Synchronous boost converter delivering 500-mA continuous output at 5 V with minimal heat rise in compact enclosure. Use Value: 96% efficiency and QFN thermal pad enable full-power audio playback without thermal throttling; SYNC pin allows EMI spread-spectrum alignment. |
| Industrial Handheld Scanners | Smart Home Sensor Hubs |
|
Use Scenario: Rugged barcode scanner using two AA alkaline cells (2.4–3.2 V) to power 5-V laser diode driver and CMOS imager. IC Role / Device Role / Timing Role: High-current boost regulator supplying 1-A pulses to laser driver while maintaining 3.3-V logic rail. Use Value: 4-A switch current limit handles 500-ms laser pulses without dropout; LBI/LBO provides battery gauge interface for low-battery alerts. |
Use Scenario: Battery-backed Zigbee hub using three AAA NiMH cells (3.0–4.2 V) to power 3.3-V MCU, radio, and flash memory. IC Role / Device Role / Timing Role: Adjustable-output boost IC generating 3.3 V with programmable low-battery detection for firmware-controlled sleep/wake. Use Value: FB and LBI pins share same 500-mV reference, simplifying resistor-divider design; Power Save mode sustains >1-year shelf life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61032RSAR | Adjustable output version with identical pinout, specs, and QFN-16 package; differs only in factory-trimmed feedback network (not present in TPS61030RSARG4). | No internal feedback resistors - requires external R3/R4 on FB for all output voltages; better for custom VOUT or tighter tolerance needs. | Select TPS61032RSAR if fixed internal resistor ratio is acceptable and board space is constrained; TPS61030RSARG4 offers full flexibility with external divider. |
| MAX77801EWL+T | Higher integration: includes I2C-configurable output, battery charger, and fuel gauge; 2-MHz switching, smaller 2.5-mm × 2.5-mm WLP package. | Targets space-constrained wearables needing multi-rail power management; lacks LBI/LBO comparator and load disconnect in shutdown. | Choose MAX77801EWL+T for systems requiring charging + regulation in one chip; TPS61030RSARG4 remains optimal for cost-sensitive, high-efficiency standalone boost. |
Compared with TPS61032RSAR, TPS61030RSARG4 provides full external output voltage control without internal resistor constraints; versus MAX77801EWL+T, it delivers superior efficiency (>96% vs ~92%) and deterministic load disconnect, at the cost of no integrated charging or digital interface.
Availability
TPS61030RSARG4 is available at Aetrix Electronics and suitable for portable medical sensors, wireless audio transmitters, industrial handheld scanners, and smart home sensor hubs requiring stable component supply with guaranteed long-term sourcing.
Supply support for TPS61030RSARG4 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-efficiency DC-DC conversion.
The TPS6103x product line was engineered specifically for battery-powered portable electronics, emphasizing ultra-low quiescent current, high light-load efficiency, and robust protection features in compact thermally enhanced packages.
FAQ
What is the maximum output voltage supported by the TPS61030RSARG4?
The TPS61030RSARG4 supports an adjustable output voltage range of 1.8 V to 5.5 V. This is achieved using an external resistor divider connected to the FB pin, where the internal reference voltage is precisely 500 mV ±10 mV. The device's output stage and internal switch rating allow safe operation up to 5.5 V, making it suitable for powering 5-V USB peripherals or legacy logic from low-voltage batteries. Output voltage accuracy depends on resistor tolerance and FB pin current matching.
Does the TPS61030RSARG4 provide true load disconnect during shutdown?
Yes, the TPS61030RSARG4 implements active load disconnect during shutdown. When the EN pin is pulled low, both the boost switch and synchronous rectifier are fully disabled, and a dedicated internal circuit isolates the VOUT pins from VBAT by disconnecting the cathode of the high-side PMOS backgate diode. This prevents reverse current flow and reduces shutdown current to less than 1 µA, ensuring zero battery drain in storage or standby - a key differentiator versus basic boost converters requiring external ideal diodes.
How does the Power Save mode function in the TPS61030RSARG4?
In Power Save mode (enabled by pulling SYNC low), the TPS61030RSARG4 operates in pulse-frequency modulation (PFM): it delivers energy in discrete bursts only when output voltage drops below a hysteresis band, then returns to sleep until the next droop event. This maintains >85% efficiency down to 100-µA loads, significantly extending battery life in intermittently active applications like IoT sensors. Unlike forced-PWM operation, Power Save mode dynamically adjusts switching frequency based on load, eliminating audible coil whine and reducing light-load losses.
Can the TPS61030RSARG4 be synchronized to an external clock?
Yes, the TPS61030RSARG4 supports external clock synchronization via the SYNC pin. Applying a square-wave clock signal with 30–70% duty cycle and frequency between 500 kHz and 700 kHz (±20% of nominal 600 kHz) forces the internal oscillator to lock to the external source. This capability enables EMI reduction through frequency dithering or alignment with system clocks to avoid beat frequencies - critical in noise-sensitive applications such as audio or precision measurement circuits.
What thermal design considerations apply to the TPS61030RSARG4 in QFN package?
The TPS61030RSARG4 in RSA (QFN-16) package has a junction-to-ambient thermal resistance (RθJA) of 35.5°C/W, achievable only when the exposed PowerPAD™ is soldered to a minimum 200-mm² copper thermal pad connected to internal/external ground planes. Without proper thermal vias (≥6× 0.3-mm diameter) and copper area, junction temperature can exceed 125°C at 1-A load. TI recommends routing PGND pins directly to the PowerPAD™ and separating signal GND to prevent noise coupling into sensitive analog blocks.
TPS61030RSARG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-VQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 3.6A (Switch)
- Frequency - Switching:
- 600kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (4x4)
TPS61030RSARG4 FAQ
1.How can I place an order for TPS61030RSARG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61030RSARG4 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 TPS61030RSARG4 reliable?
The price and inventory of TPS61030RSARG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61030RSARG4 is usually 5 days.
3.What payment methods are accepted for TPS61030RSARG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61030RSARG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61030RSARG4?
TPS61030RSARG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61030RSARG4 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 TPS61030RSARG4?
For technical support, including TPS61030RSARG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61030RSARG4 requirements.
6.How does Aetrix verify that TPS61030RSARG4 is sourced from the original manufacturer or authorized distributors?
All TPS61030RSARG4 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 TPS61030RSARG4 meets industry standards.
7.What is the process for return or replacement of TPS61030RSARG4?
All TPS61030RSARG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS61030RSARG4, 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 TPS61030RSARG4 part is unused and in its original packaging.
Return procedure for TPS61030RSARG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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