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Texas Instruments TPS630701RNMT
- Part No.:
- TPS630701RNMT
- Manufacturer:
- Texas Instruments
- Package:
- 15-PowerVFQFN
- Datasheet:
-
TPS630701RNMT.pdf
- Description:
- IC REG BUCK BOOST 5V 2A 15VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,197
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Product details
Overview
TPS630701RNMT from Texas Instruments is a fixed 5-V output, synchronous buck-boost DC/DC converter optimized for single-cell or dual-cell Li-ion battery-powered systems. It operates across 2.0 V to 16 V input and delivers up to 2 A output current in both buck and boost modes, with up to 95% peak efficiency and ±1% PWM-mode output voltage accuracy. Its seamless automatic mode transition enables stable power delivery in portable medical devices and ultra-mobile PCs where input voltage crosses the output rail.
For engineers reviewing the TPS630701RNMT datasheet, TPS630701RNMT pinout, TPS630701RNMT application, or TPS630701RNMT equivalent, key selection considerations include its fixed 5-V output, QFN-15 package with thermal pad, 2.4 MHz switching frequency with synchronization capability, integrated power good (PG) signal, and precise enable threshold enabling user-defined UVLO and sequencing control.
Technical Context
The TPS630701RNMT implements an average current-mode control architecture using four internal N-channel MOSFETs to maintain synchronous operation across all input-output conditions. It automatically transitions between buck and boost topologies without discontinuity, using one active switch pair while holding the other pair static to minimize conduction and switching losses.
Its dual-function PS/SYNC pin supports forced PWM operation (low), power-save mode (high), and external clock synchronization (2.1–2.8 MHz). The VSEL/FB2 interface enables dynamic output voltage scaling on adjustable variants-though not active in the fixed 5-V TPS630701RNMT-while PG provides open-drain status reporting with externally pulled-up logic-level signaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±1% (PWM mode); ensures compatibility with USB-powered peripherals and standard logic rails. |
| Input Voltage Range | 2.0 V to 16 V; supports single Li-ion (2.7–4.2 V), dual Li-ion (5.4–8.4 V), and 9–12 V industrial supplies without external regulators. |
| Max Output Current | 2 A in both buck and boost modes; sustains full load under worst-case VIN/VOUT crossing (e.g., VIN = 4 V → VOUT = 5 V). |
| Switching Frequency | 2.4 MHz nominal, synchronizable 2.1–2.8 MHz; enables compact 1.5 µH inductor and low-ESR ceramic output capacitors (≥15 µF). |
| Quiescent Current | 54–103 µA (PFM mode, TJ = –40°C to 85°C); extends battery runtime in always-on sensor nodes and standby subsystems. |
| Thermal Protection | 160°C junction shutdown with 20°C hysteresis; prevents latch-up during sustained overload or poor PCB thermal design. |
| Power Good Accuracy | 94.5–98.5% of VOUT rising threshold; provides reliable system reset assertion within 250 mV of 5 V nominal. |
Pinout & Package
The TPS630701RNMT is housed in a thermally enhanced 2.5 mm × 3 mm, 15-pin VQFN package with exposed thermal pad (RNMT suffix), supporting high-power density layouts and efficient heat dissipation via PCB copper pour.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 14) | Enable control input | Logic-high (>0.77 V) enables regulation; precise 0.8 V rising threshold allows RC-delayed startup and custom UVLO via resistor divider. |
| FB (Pin 5) | Feedback reference node | Internally connected to VOUT in fixed 5-V version; no external resistor divider required-simplifies layout and eliminates feedback error sources. |
| PG (Pin 2) | Open-drain power-good indicator | Signals regulated output (high-Z) or fault condition (pulled low); requires external pull-up to ≤VOUT for system monitoring and sequencing. |
| VIN (Pins 12, 13) | Main power input | Accepts 2–16 V; dual pins reduce trace resistance and improve current handling for high-input-current boost scenarios. |
| VOUT (Pins 7, 8) | Regulated output | Delivers up to 2 A; dual pins lower impedance and support parallel capacitor placement for low-noise supply filtering. |
| L1 / L2 (Pins 11, 9) | Inductor connections | Interface with external 1.5 µH coupled inductor; L1 is high-side buck/low-side boost node; L2 is low-side buck/high-side boost node. |
| PGND (Pin 10) | Power ground return | Separate from logic GND (Pin 4); must be tied directly to thermal pad and input/output capacitor grounds to minimize noise and EMI. |
| PS/SYNC (Pin 1) | Mode control & sync input | Pull low for forced 2.4 MHz PWM; pull high for auto PFM/PWM transition; accept 2.1–2.8 MHz external clock for EMI reduction. |
| GND (Pin 4) | Logic ground reference | Reference for EN, VSEL, FB2, and internal control circuitry; must be shorted to PGND at single point near thermal pad. |
| VAUX (Pin 3) | Auxiliary bias regulator output | Supplies internal circuitry; requires 100 nF ceramic capacitor to GND-no external load permitted. |
| VSEL (Pin 15) | Voltage select control | No functional impact in TPS630701RNMT (fixed 5 V); leave unconnected or grounded per datasheet recommendation. |
| FB2 (Pin 6) | Secondary feedback node | Unused in fixed-output variant; high-impedance when VSEL = low; internal 25–100 Ω pull-down only activated if VSEL = high. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic buck-boost topology switching | Seamless transition between modes at VIN ≈ VOUT avoids output glitches and maintains regulation during battery discharge or line transients. |
| Integrated power good (PG) output | Open-drain PG provides system-level power sequencing confirmation with <250 mV detection window around 5 V nominal. |
| 2.4 MHz fixed-frequency PWM + sync capability | Enables use of small 1.5 µH inductors and 0603/0805 MLCCs; external sync reduces EMI in noise-sensitive applications like medical imaging. |
| 50 µA typical quiescent current (PFM mode) | Extends runtime in battery-backed real-time clocks, wearables, and IoT edge sensors operating at microamp-level loads. |
| Overvoltage and overtemperature protection | Prevents damage during hot-swap events, output capacitor charging faults, or inadequate heatsinking-no external protection circuitry needed. |
| Load disconnect during shutdown | Isolates output from input when EN = low, eliminating battery drain through downstream circuits and enabling true zero-power standby. |
Applications
| Portable Medical Monitoring | Dual-Cell Li-ion Power Management |
|---|---|
|
Use Scenario: Continuous glucose monitor (CGM) with BLE radio, sensor front-end, and display powered from two series Li-ion cells (5.4–8.4 V). IC Role / Device Role / Timing Role: Primary buck-boost regulator maintaining stable 5 V for MCU and RF transceiver as battery voltage drops below 5 V during discharge. Use Value: Eliminates need for separate buck and boost stages; 95% efficiency preserves battery life across full cell voltage range. |
Use Scenario: Handheld industrial meter with LCD, ADC, and isolated comms, powered by dual Li-ion pack. IC Role / Device Role / Timing Role: Central power supply delivering regulated 5 V to mixed-signal subsystems while adapting to varying cell voltage and load profiles. Use Value: Automatic mode transition ensures uninterrupted operation during deep discharge; PG signal triggers low-battery alerts before cutoff. |
| Ultra-Mobile PC Subsystem | USB-Powered Peripheral Hub |
|
Use Scenario: Always-on auxiliary domain in UMPC (e.g., keyboard backlight, touchpad controller, wake-on-LAN PHY) running from main battery. IC Role / Device Role / Timing Role: Low-quiescent-current buck-boost supplying 5 V with fast transient response to burst loads from peripheral activity. Use Value: 54 µA IQ extends sleep-mode battery life; soft-start prevents inrush-induced brownouts during resume-from-suspend. |
Use Scenario: Self-powered USB hub converting 5 V from upstream port to regulated 5 V for downstream ports and LEDs. IC Role / Device Role / Timing Role: Input-voltage-flexible regulator compensating for USB cable drop and source variation (4.4–5.25 V). Use Value: Operates down to 2.0 V input-supports legacy USB chargers and maintains compliance across wide input tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS630702RNMT | Adjustable output (2.5–9 V) with output discharge function; same package and pinout. | Requires external feedback resistors; enables dynamic voltage scaling but adds BOM cost and layout complexity. | Select when variable output or active discharge during shutdown is required; not drop-in for fixed 5 V. |
| MAX77818EWL+T | 3.2-V to 16-V input, 5-V fixed output, 3-A max, 2.2-MHz switching; integrates I²C programmable features and telemetry. | Supports dynamic voltage scaling, current monitoring, and fault logging via I²C-adds firmware overhead but improves system diagnostics. | Choose for designs needing telemetry or multi-rail coordination; higher cost and larger footprint than TPS630701RNMT. |
Compared with TPS630701RNMT, the TPS630702RNMT offers flexibility at the expense of added external components, while the MAX77818EWL+T trades simplicity for digital configurability and higher current capability-making TPS630701RNMT optimal for cost-sensitive, fixed-rail, high-efficiency portable power applications.
Availability
TPS630701RNMT is available at Aetrix Electronics and suitable for portable medical devices, ultra-mobile PCs, and USB-powered peripherals requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for TPS630701RNMT 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-efficiency DC/DC conversion and battery-powered system solutions.
The TPS6307x family was designed specifically for space-constrained, battery-operated applications demanding seamless buck-boost operation, low quiescent current, and robust protection-targeting portable instrumentation, mobile computing, and personal healthcare devices.
FAQ
What is the output voltage tolerance of the TPS630701RNMT under PWM mode?
The TPS630701RNMT guarantees ±1% dc output voltage accuracy in forced PWM mode (PS/SYNC = low), measured across temperature (–40°C to 125°C) and line/load conditions. This tight tolerance ensures reliable operation of 5-V logic interfaces, USB peripherals, and analog subsystems without additional post-regulation. The TPS630701RNMT achieves this via precision internal reference and feedback amplifier design, independent of external resistor tolerances since FB is internally tied to VOUT.
Does the TPS630701RNMT require external feedback resistors?
No, the TPS630701RNMT does not require external feedback resistors. As a fixed 5-V output variant, its FB pin is internally connected to VOUT-eliminating the need for an external voltage divider and associated component tolerances. This simplifies layout, reduces BOM count, and improves long-term stability compared to adjustable versions like TPS630702RNMT. The TPS630701RNMT's fixed configuration is verified in TI's SLVSC58B datasheet Section 5 (Device Comparison Table) and Section 6 (Pin Functions).
Can the TPS630701RNMT synchronize to an external clock?
Yes, the TPS630701RNMT supports external clock synchronization via its PS/SYNC pin, accepting input frequencies from 2.1 MHz to 2.8 MHz. When an external clock is detected, the device locks to that frequency and disables its internal oscillator-reducing EMI in noise-sensitive systems such as medical imaging or audio equipment. The TPS630701RNMT maintains full regulation and protection functionality during sync operation, with no change to output accuracy or current capability.
What thermal management guidance applies to the TPS630701RNMT?
The TPS630701RNMT uses a 2.5 mm × 3 mm VQFN package with exposed thermal pad (RNMT), and its datasheet specifies RθJA = 63°C/W and RθJB = 13°C/W. For reliable 2-A operation, Aetrix recommends ≥120 mm² of 2-oz copper connected to the thermal pad with ≥4 thermal vias (0.3-mm diameter, filled or plated). The TPS630701RNMT's thermal shutdown activates at 160°C with 20°C hysteresis, and proper PCB layout ensures operation within safe junction limits even under continuous full-load conditions.
How does the TPS630701RNMT handle input undervoltage lockout?
The TPS630701RNMT incorporates a precise enable comparator with 0.77–0.83 V rising threshold and 0.67–0.73 V falling threshold on the EN pin. This allows designers to implement custom UVLO using a resistor divider from VIN, setting turn-on voltage independently of the IC's internal 1.85 V UVLO threshold. The TPS630701RNMT starts switching ~70 µs after EN exceeds VIH, and enters low-IQ shutdown (<12 µA) when EN falls below VIL-enabling accurate power sequencing in multi-rail systems.
TPS630701RNMT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 15-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2V
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 2A
- Frequency - Switching:
- 2.4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 15-VQFN-HR (3x2.5)
TPS630701RNMT FAQ
1.How can I place an order for TPS630701RNMT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS630701RNMT 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 TPS630701RNMT reliable?
The price and inventory of TPS630701RNMT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS630701RNMT is usually 5 days.
3.What payment methods are accepted for TPS630701RNMT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS630701RNMT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS630701RNMT?
TPS630701RNMT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS630701RNMT 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 TPS630701RNMT?
For technical support, including TPS630701RNMT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS630701RNMT requirements.
6.How does Aetrix verify that TPS630701RNMT is sourced from the original manufacturer or authorized distributors?
All TPS630701RNMT 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 TPS630701RNMT meets industry standards.
7.What is the process for return or replacement of TPS630701RNMT?
All TPS630701RNMT units undergo pre-shipment inspection (PSI). If there is an issue with TPS630701RNMT, 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 TPS630701RNMT part is unused and in its original packaging.
Return procedure for TPS630701RNMT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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