My Inquiry
My Account
Texas Instruments TPS630250RNCR
- Part No.:
- TPS630250RNCR
- Manufacturer:
- Texas Instruments
- Package:
- 14-PowerVFQFN
- Datasheet:
-
TPS630250RNCR.pdf
- Description:
- IC REG BCK BST ADJ 2A/4A 14VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,448
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS630250RNCR from Texas Instruments is a high-efficiency, adjustable-output synchronous buck-boost DC/DC converter in a 14-pin VQFN (RNC) package. It delivers up to 2 A continuous output current with 2.3 V–5.5 V input range, 97% peak efficiency at VIN = VOUT, and seamless automatic buck/boost mode transition-used in battery-powered portable electronics requiring stable 3.3 V rail from single-cell Li-ion or Li-poly sources.
For engineers reviewing the TPS630250RNCR datasheet, TPS630250RNCR pinout, TPS630250RNCR application, or TPS630250RNCR equivalent, key selection criteria include its 2.5 MHz fixed-frequency PWM operation, 35 µA quiescent current in Power Save Mode, integrated soft-start, true shutdown with output discharge, and support for ceramic output capacitors ≥20 µF.
Technical Context
The TPS630250RNCR implements average current-mode control using four internal N-channel MOSFETs, enabling real-time buck-or-boost selection based on VIN vs VOUT. Its control architecture maintains one switch fully on and one fully off during each phase to minimize switching losses while regulating output voltage across the full input range.
It features dual supply rails (VIN for power stage, VINA for control logic), separate PGND and GND pins to isolate high-current paths from analog reference, and a dedicated PFM/PWM pin that forces fixed-frequency 2.5 MHz operation or enables automatic light-load PFM mode with dynamic voltage positioning (1.3% overregulation).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3 V to 5.5 V - supports single-cell Li-ion (2.7–4.2 V), Li-poly, or 3.3 V/5 V system rails without external LDO pre-regulation. |
| Output Current | 2 A continuous - sustained at VOUT = 3.3 V with VIN ≥ 2.5 V, enabling direct powering of SoCs, PMICs, or RF modules. |
| Switching Frequency | 2.5 MHz typical - allows use of compact 1 µH inductors and low-ESR ceramic capacitors, reducing solution footprint. |
| Quiescent Current | 35 µA - minimizes battery drain in always-on subsystems such as RTC, sensors, or BLE co-processors. |
| Feedback Reference | 0.8 V ±1% - enables precise adjustable output via external resistor divider; compatible with standard 3.3 V, 2.9 V, or custom voltage setpoints. |
| Efficiency | Up to 97% at VIN = VOUT - maximizes runtime in mid-load conditions typical of display backlight drivers or USB peripherals. |
| Soft-Start Time | 450 µs (buck) / 700 µs (boost) - prevents inrush current and output overshoot during power-up, critical for FPGA or microcontroller sequencing. |
Pinout & Package
TPS630250RNCR is housed in a thermally enhanced 2.5 mm × 3 mm, 14-pin HotRod VQFN (RNC) package with exposed thermal pad. Pin layout optimizes high-current path routing and thermal dissipation for industrial and portable applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power Input | Main supply for power stage; accepts 2.3–5.5 V; connects to input capacitor and high-current trace. |
| VINA | Analog Supply | Dedicated low-noise supply for control circuitry; must be decoupled separately from VIN. |
| EN | Enable Input | Active-high logic control; pulls low for true shutdown with output capacitor discharge (120 Ω internal path). |
| PFM/PWM | Mode Select | Low = automatic PFM/PWM transition; high = forced 2.5 MHz PWM only; must not float. |
| L1, L2 | Inductor Connections | High-current terminals for single inductor; L1 connects to VIN side, L2 to VOUT side in buck-boost topology. |
| VOUT | Regulated Output | Delivers up to 2 A; requires ≥20 µF ceramic output capacitance for stability and transient response. |
| FB | Feedback Input | Connects to resistor divider for adjustable output; internal 0.8 V reference sets VOUT = 0.8 × (1 + R1/R2). |
| PGND | Power Ground | Return path for high-switching-current loops; must be connected to PCB ground plane under thermal pad. |
| GND | Analog Ground | Reference for FB, EN, PFM/PWM; tied to PGND at single point near GND pin to avoid noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic Buck-Boost Transition | Seamlessly switches between buck and boost modes without output disruption when VIN crosses VOUT - eliminates need for external supervision or mode control logic. |
| Integrated Output Discharge | Activates 120 Ω internal discharge path upon EN deassertion, discharging 20 µF output cap from 3.3 V to UVLO threshold in <10 ms - prevents residual voltage hazards during hot-swap or sleep entry. |
| Thermal Shutdown Protection | Triggers at 140 °C junction temperature with 20 °C hysteresis - protects device and PCB during overload or poor heatsinking without latch-up. |
| Low-IQ Power Save Mode | Reduces operating current to 35 µA at light loads while maintaining regulation via pulse-frequency modulation - extends battery life in standby or sensor-monitoring states. |
| True Shutdown Function | Disconnects load from input during EN = low, drawing only 0.1–2 µA - ensures zero system leakage current in deep sleep or off-state. |
Applications
| Smartphone Baseband Power | USB-C PD Sink Rail |
|---|---|
Use Scenario: Powers application processor I/O and memory interface from single-cell Li-ion battery with dynamically varying voltage (3.0–4.2 V). IC Role / Device Role / Timing Role: Primary buck-boost regulator delivering stable 3.3 V at up to 2 A; manages seamless transitions as battery discharges below 3.3 V. Use Value: Eliminates need for discrete buck + boost stages or inefficient linear regulators, reducing BOM count and thermal load in space-constrained handset designs. | Use Scenario: Generates 3.3 V auxiliary rail for USB-C controller, level shifters, and status LEDs in portable accessories negotiating variable input (5–20 V). IC Role / Device Role / Timing Role: Input-flexible post-regulator accepting wide-range USB PD source; operates in buck mode at 9 V/15 V input, boost mode at 5 V. Use Value: Enables single-rail design across all USB PD profiles without redesign; 2.5 MHz switching avoids EMI interference with high-speed USB data lines. |
| Wearable Health Sensor Hub | Industrial Handheld Scanner |
Use Scenario: Supplies consistent 3.3 V to optical heart-rate sensor, accelerometer, and BLE radio in coin-cell or small Li-poly powered wearable. IC Role / Device Role / Timing Role: Always-on power manager with ultra-low 35 µA quiescent current in PFM mode and fast wake-up (<700 µs soft-start) for on-demand sensing bursts. Use Value: Extends battery life beyond 7 days on 100 mAh cell while supporting rapid sensor activation without voltage droop or reset events. | Use Scenario: Provides regulated 3.3 V for barcode imager, touchscreen controller, and Wi-Fi module in rugged handheld scanner with 2.8–4.4 V battery input. IC Role / Device Role / Timing Role: High-reliability power stage with over-temperature and over-current protection; withstands repeated cold-cranking and thermal cycling. Use Value: Maintains operation down to 2.3 V input during battery sag, preventing unexpected shutdown during barcode capture sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS630252RNCR | Fixed 3.3 V output; no FB pin required; identical package, pinout, and efficiency profile. | Simpler BOM for fixed-voltage systems; eliminates external resistor divider but loses adjustability. | Select when output voltage is permanently 3.3 V and board space for feedback resistors is constrained. |
| MAX77827BEWL+T | 2.5 V–5.5 V input; 3.3 V fixed output; 2 A max; 2.2 MHz switching; higher 65 µA IQ in PFM mode. | Requires external compensation; lacks integrated output discharge and has lower thermal performance (RθJA = 85 °C/W). | Consider only if TI supply chain constraints exist; verify thermal margin in 2.5×3 mm layout due to inferior thermal resistance. |
Compared with TPS630250RNCR, TPS630252RNCR offers identical performance with reduced external component count for fixed 3.3 V use, while MAX77827BEWL+T provides functional overlap but requires careful thermal validation and sacrifices discharge functionality and low-IQ advantage.
Availability
TPS630250RNCR is available at Aetrix Electronics and suitable for smartphone baseband power, USB-C PD sink rails, wearable sensor hubs, and industrial handheld scanners requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TPS630250RNCR 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.
The TPS63025x product line was designed specifically for portable and battery-powered applications demanding seamless input-voltage flexibility, ultra-low quiescent current, and minimal solution size - targeting next-generation wearables, mobile accessories, and IoT edge devices.
FAQ
What is the minimum input voltage required for TPS630250RNCR to deliver 2 A output current?
The TPS630250RNCR requires a minimum input voltage of 2.8 V to sustain 2 A output current at VOUT = 3.3 V, as specified in the Electrical Characteristics table under "VIN_Min". Below this threshold, output current capability decreases progressively due to internal current limiting and reduced duty cycle headroom.
Does TPS630250RNCR support forced PWM mode, and how is it enabled?
Yes, TPS630250RNCR supports forced PWM mode via the PFM/PWM pin. Driving this pin high (VIH ≥ 1.2 V) disables Power Save Mode and locks the converter into fixed 2.5 MHz PWM operation regardless of load current - ensuring constant frequency for EMI-sensitive applications like RF transceivers or high-speed interfaces.
How does the output discharge function operate in TPS630250RNCR during shutdown?
When EN is pulled low, TPS630250RNCR activates an internal 120 Ω discharge path between VOUT and PGND. This safely discharges a 20 µF output capacitor from 3.3 V to the UVLO threshold (~1.7 V) in under 10 ms, preventing hazardous residual voltage on downstream circuits during system sleep or hot-swap events.
Can TPS630250RNCR be used with ceramic output capacitors smaller than 20 µF?
No - the datasheet specifies a minimum 20 µF effective output capacitance for stability and transient response. Using less capacitance risks output voltage overshoot, instability, or failure to meet load step requirements. The 20 µF value accounts for DC bias derating; a nominal 47 µF X5R 0603 capacitor is commonly selected to ensure ≥20 µF effective capacitance at 3.3 V bias.
What is the thermal resistance (RθJA) of the TPS630250RNCR in its RNC package?
The TPS630250RNCR in the 14-pin VQFN (RNC) package has a junction-to-ambient thermal resistance (RθJA) of 69.2 °C/W under JEDEC JESD51-7 standard PCB conditions. This value assumes a 2-layer board with 1-in² copper area under the thermal pad; actual thermal performance improves significantly with multi-layer boards and enhanced copper pours.
TPS630250RNCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.3V
- Voltage - Output (Max):
- 3.6V
- Current - Output:
- 2A, 4A
- Frequency - Switching:
- 2.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-VQFN-HR (3x2.5)
TPS630250RNCR FAQ
1.How can I place an order for TPS630250RNCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS630250RNCR 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 TPS630250RNCR reliable?
The price and inventory of TPS630250RNCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS630250RNCR is usually 5 days.
3.What payment methods are accepted for TPS630250RNCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS630250RNCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS630250RNCR?
TPS630250RNCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS630250RNCR 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 TPS630250RNCR?
For technical support, including TPS630250RNCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS630250RNCR requirements.
6.How does Aetrix verify that TPS630250RNCR is sourced from the original manufacturer or authorized distributors?
All TPS630250RNCR 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 TPS630250RNCR meets industry standards.
7.What is the process for return or replacement of TPS630250RNCR?
All TPS630250RNCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS630250RNCR, 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 TPS630250RNCR part is unused and in its original packaging.
Return procedure for TPS630250RNCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS630250RNCR Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
