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Texas Instruments TPS61232DRCR
- Part No.:
- TPS61232DRCR
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS61232DRCR.pdf
- Description:
- IC REG BOOST 5V 5A 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,755
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Product details
Overview
TPS61232DRCR from Texas Instruments is a fixed 5-V synchronous step-up DC-DC converter optimized for single-cell Li-Ion battery and 3.3-V rail applications. It delivers up to 2.1 A output current at 5 V with 3.3-V input, operates at 2 MHz switching frequency, integrates a 5-A internal switch, and features power-good (PG) output and load disconnect in shutdown.
For engineers reviewing the TPS61232DRCR datasheet, TPS61232DRCR pinout, TPS61232DRCR application, or TPS61232DRCR equivalent, key selection criteria include fixed 5-V output accuracy (±2%), 2.3–5.5-V input range, 96% peak efficiency, 1.5 µA shutdown current, and VSON-11 package compatibility with space-constrained portable power designs.
Technical Context
The TPS61232DRCR uses quasi-constant on-time valley current mode control to achieve fast line/load transient response with minimal output capacitance. Its architecture supports three functional modes: PWM (2 MHz) under medium/heavy loads, PFM for light-load efficiency, and zero-duty-cycle conduction when VIN approaches VOUT.
Internal loop compensation eliminates external compensation components. The device integrates undervoltage lockout (UVLO), thermal shutdown (150°C), overvoltage protection (6.0 V threshold), and a precise EN comparator with adjustable hysteresis via the HYS pin - all while maintaining true load disconnect during shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3 V to 5.5 V - supports direct connection to single-cell Li-Ion (2.7–4.2 V) and regulated 3.3-V rails without pre-regulation. |
| Output Voltage | Fixed 5.0 V ±2% - internally trimmed; no external feedback resistors required, simplifying BOM and layout. |
| Max Output Current | 2.1 A at 5 V / 3.3 V input - enables USB-powered peripherals and high-current 5-V rails in compact devices. |
| Switching Frequency | 2 MHz nominal - allows use of small 1-µH inductors and low-ESR ceramic capacitors for minimal solution size. |
| Peak Efficiency | 96% at 3.6 V input / 5 V output - reduces thermal stress and extends battery runtime in portable systems. |
| Shutdown Current | 1.5 µA typical - ensures negligible battery drain during system sleep or standby states. |
| Power Good Output | Open-drain PG with 90–95% VOUT threshold - provides reliable system-level power sequencing and fault monitoring. |
Pinout & Package
TPS61232DRCR is housed in a thermally enhanced 3 mm × 3 mm × 0.9 mm VSON-11 package with exposed thermal pad (DRC). Pin 11 is GND, and pins 1–2 are SW (parallel connection for low-inductance high-current path).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW (1,2) | Power switch node | Connects to drain of internal 5-A synchronous MOSFET pair; requires short, low-inductance trace to inductor and input/output capacitors. |
| VOUT (3,4) | Boost output | Parallel pins deliver high-current 5-V output; must be decoupled with ≥22 µF total ceramic capacitance near the pins. |
| PG (5) | Power good indicator | Open-drain output active-low below 90% VOUT; requires external pull-up to ≤5.5 V for system monitoring. |
| SS (6) | Soft-start timing | Controls output ramp rate via external capacitor; floating = fastest startup; 10 nF ≈ 1.5 ms soft-start time. |
| FB (7) | Feedback reference | Internally connected to 1.0 V reference; tied directly to VOUT for fixed 5-V operation - no external divider needed. |
| HYS (8) | EN hysteresis control | Configures UVLO hysteresis using external resistor network; left floating for default 100-mV hysteresis. |
| EN (9) | Enable logic input | Active-high enable with 1.19 V typical threshold; must be terminated - floating causes undefined operation. |
| VIN (10) | Input supply | Accepts 2.3–5.5 V; requires local 22-µF ceramic input capacitor placed adjacent to pin 10 and GND. |
| GND (11) | Power ground | Primary return path for high-frequency switching currents; connects to thermal pad for optimal heat dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 5-V output | Eliminates external feedback resistors, reducing component count and layout sensitivity while ensuring ±2% regulation across temperature and load. |
| 2-MHz quasi-constant on-time control | Delivers stable operation across wide VIN/VOUT ratios with minimal output capacitance and no external compensation. |
| True load disconnect in shutdown | Breaks conduction path between VIN and VOUT, preventing reverse current flow and enabling safe hot-swap or battery isolation. |
| Integrated power-good (PG) output | Provides system-level power sequencing capability without external supervisor ICs, reducing board area and BOM cost. |
| Adjustable EN hysteresis via HYS pin | Enables custom power-up/down thresholds for battery voltage monitoring or sequenced system enable logic. |
Applications
| USB Power Delivery Adapter | Portable Medical Monitor |
|---|---|
Use Scenario: Converting 3.3-V system rail to stable 5-V USB host port for peripheral charging and data interface. IC Role / Device Role / Timing Role: Primary synchronous boost regulator delivering regulated 5-V/2.1-A output with PG signaling for host controller readiness detection. Use Value: Enables compact, single-chip USB power delivery without external LDOs or supervisors, meeting USB BC1.2 current requirements. | Use Scenario: Powering 5-V LCD display, sensor interface, and wireless transceiver from a single 3.7-V Li-Ion cell in handheld diagnostics equipment. IC Role / Device Role / Timing Role: Main step-up converter providing efficient, low-noise 5-V rail with soft-start and power-good for controlled subsystem initialization. Use Value: Extends battery life via 96% peak efficiency and 1.5 µA shutdown current, while ensuring clean power-up sequencing for FDA-compliant firmware boot. |
| Industrial Handheld Scanner | Smart POS Terminal |
Use Scenario: Generating 5-V supply for laser diode driver and image sensor from a 3.6-V Li-Ion battery in barcode scanning hardware. IC Role / Device Role / Timing Role: High-efficiency boost converter operating in PFM mode during idle scans and PWM mode during active acquisition bursts. Use Value: Maintains >90% efficiency down to 10-mA load, minimizing self-heating during continuous operation and preserving battery capacity per scan cycle. | Use Scenario: Providing regulated 5-V rail for EMV contactless reader, thermal printer, and secure element in battery-backed retail terminals. IC Role / Device Role / Timing Role: Primary power conversion IC with load disconnect and PG output used for system reset coordination and brown-out detection. Use Value: Guarantees clean power-down and restart behavior during battery swaps or AC failure, preventing transaction corruption or memory loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61230DRCR | Adjustable output (2.5–5.5 V) via external resistor divider; no output discharge; same pinout and package. | Requires two external resistors for 5-V setting; lacks internal FB divider, increasing BOM and layout complexity for fixed-output use. | Select only if future design flexibility for multiple output voltages is required; otherwise TPS61232DRCR offers lower BOM cost and tighter 5-V tolerance. |
| MT3608EN | 2-MHz boost IC with 2.5–24-V input, 5-V fixed option; 2-A max output; no PG, no load disconnect, no adjustable EN hysteresis. | Lacks power-good signaling and true load isolation; less suitable for safety-critical or sequenced power systems. | Consider for cost-sensitive consumer applications where PG and shutdown isolation are not required; verify thermal performance at 2.1-A load. |
Compared with TPS61230DRCR, the TPS61232DRCR reduces external component count and improves 5-V accuracy; compared with MT3608EN, it adds critical system-level features - PG output, load disconnect, and EN hysteresis tuning - essential for industrial and medical portable designs.
Availability
TPS61232DRCR is available at Aetrix Electronics and suitable for USB power adapters, portable medical monitors, industrial handheld scanners, and smart POS terminals requiring stable component supply and long-term production support.
Supply support for TPS61232DRCR 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 battery-powered and industrial applications.
The TPS6123x product line was designed specifically for high-efficiency, space-constrained step-up conversion in portable electronics powered by single-cell Li-Ion batteries or 3.3-V rails, emphasizing integration, thermal performance, and system-level features like PG and load disconnect.
FAQ
What is the output voltage tolerance of the TPS61232DRCR under full load and temperature range?
The TPS61232DRCR delivers a fixed 5.0 V output with ±2% accuracy across –40°C to 125°C junction temperature and full load (2.1 A), as specified in the Electrical Characteristics table under VOUT parameter (4.9 V to 5.1 V in PWM mode). This tolerance holds with 2.3–5.5 V input and standard external components (1-µH inductor, 22-µF output capacitance).
Does the TPS61232DRCR require external feedback resistors to set the 5-V output?
No, the TPS61232DRCR does not require external feedback resistors. It integrates an internal resistor divider that fixes the output to 5.0 V. The FB pin is internally connected to the 1.0-V reference and must be tied directly to VOUT - unlike the adjustable TPS61230DRCR or TPS61231DRCR, which require external resistors for output programming.
How does the TPS61232DRCR handle startup into a pre-biased output?
During startup, the TPS61232DRCR executes a controlled pre-charge phase followed by soft-start. If the output is pre-biased, the device detects VOUT > 0.5 V and skips pre-charge, entering soft-start directly. The SS pin limits FB voltage rise rate, preventing output overshoot. No external circuitry is needed to manage pre-bias conditions.
Can the TPS61232DRCR operate with input voltage higher than the output voltage?
Yes - the TPS61232DRCR automatically enters zero-duty-cycle mode when VIN exceeds VOUT by ≤0.24 V (e.g., 5.24 V input with 5-V output). In this mode, the high-side rectifier remains fully on, passing input to output with minimal drop (determined by RDS(on) of ~75 mΩ), enabling seamless transition without oscillation or dropout.
What thermal management guidance applies to the TPS61232DRCR in high-current operation?
The TPS61232DRCR has a junction-to-board thermal resistance (RθJB) of 26.6°C/W. For 2.1-A continuous output at 3.3-V input, maintain ≥100 mm² of 2-oz copper connected to the exposed thermal pad (pin 11) and use ≥4 thermal vias (0.3-mm diameter) to inner ground planes. Ambient temperature must stay ≤85°C to keep TJ < 125°C under worst-case load.
TPS61232DRCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 5A (Switch)
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS61232DRCR FAQ
1.How can I place an order for TPS61232DRCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61232DRCR 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 TPS61232DRCR reliable?
The price and inventory of TPS61232DRCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61232DRCR is usually 5 days.
3.What payment methods are accepted for TPS61232DRCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61232DRCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61232DRCR?
TPS61232DRCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61232DRCR 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 TPS61232DRCR?
For technical support, including TPS61232DRCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61232DRCR requirements.
6.How does Aetrix verify that TPS61232DRCR is sourced from the original manufacturer or authorized distributors?
All TPS61232DRCR 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 TPS61232DRCR meets industry standards.
7.What is the process for return or replacement of TPS61232DRCR?
All TPS61232DRCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61232DRCR, 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 TPS61232DRCR part is unused and in its original packaging.
Return procedure for TPS61232DRCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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