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Texas Instruments TPS62132RGTT
- Part No.:
- TPS62132RGTT
- Manufacturer:
- Texas Instruments
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TPS62132RGTT.pdf
- Description:
- IC REG BUCK 3.3V 3A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:116
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Product details
Overview
TPS62132RGTT from Texas Instruments is a 3-V to 17-V, 3-A synchronous step-down DC-DC converter in a 3-mm × 3-mm QFN-16 package, featuring DCS-Control™ topology, 3.3-V fixed output voltage, and power-good (open-drain) signaling. It delivers up to 3 A continuous output current with 17 µA typical quiescent current and supports seamless PWM-to-power-save mode transition for high efficiency across load range - used in POL supplies for embedded systems and solid-state drives.
For engineers reviewing the TPS62132RGTT datasheet, TPS62132RGTT pinout, TPS62132RGTT application, or TPS62132RGTT equivalent, key selection criteria include input voltage range (3–17 V), fixed 3.3-V output, thermal shutdown (160°C), undervoltage lockout (2.7 V), and compatibility with compact 2.2-µH inductors and low-ESR ceramic capacitors in space-constrained designs.
Technical Context
The TPS62132RGTT implements DCS-Control™ topology - combining fast AC response via direct output-voltage sensing with stable DC regulation through an internal error amplifier and compensated loop. Its dual-mode operation (PWM at ~2.5 MHz or ~1.25 MHz selectable via FSW pin, plus automatic power-save mode) enables high transient response and >90% efficiency at light loads without external compensation.
It integrates high-side (90 mΩ typ. @ VIN ≥ 6 V) and low-side (40 mΩ typ. @ VIN ≥ 6 V) MOSFETs, supports 100% duty-cycle operation for ultra-low dropout, and includes dedicated pins for soft-start/tracking (SS/TR), voltage margining (DEF), and sequencing-ready enable (EN) and power-good (PG) signals - all optimized for single-rail or multi-rail power management in battery- and 12-V-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 17 V - supports Li-ion battery packs (single/multi-cell) and standard 12-V intermediate rails without external pre-regulation. |
| Output Voltage | Fixed 3.3 V ±1.5% - eliminates external feedback resistors; initial accuracy of ±1.7% over temperature ensures reliable logic-level compliance. |
| Max Output Current | 3 A continuous - sustained under thermal limits (TJ ≤ 125°C) with proper PCB copper area and thermal pad soldering. |
| Quiescent Current | 17 µA typical - enables >1000-hour standby in always-on embedded applications powered from coin cells or energy-harvesting sources. |
| Switching Frequency | 2.5 MHz (FSW = Low) or 1.25 MHz (FSW = High) - selects between minimal solution size (2.2 µH inductor) or higher efficiency/ripple trade-off. |
| Thermal Shutdown | 160°C with 20°C hysteresis - protects against sustained overload or poor heatsinking; auto-recovery after cooldown avoids manual reset. |
| Power-Good Output | Open-drain PG with 92–98% VOUT threshold - provides sequenced enable signal for downstream ICs (e.g., FPGAs, processors) with external pull-up. |
Pinout & Package
TPS62132RGTT uses a 16-pin VQFN package (RGT) with 3.00 mm × 3.00 mm body and exposed thermal pad - requires soldering to AGND/PGND plane for thermal performance and EMI control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1,2,3 | SW | Switch node - connects directly to inductor; high di/dt path requiring short, wide trace and local ground return. |
| 4 | PG | Open-drain power-good - sinks 2 mA; must be pulled up externally (e.g., to 3.3 V) to signal regulated output. |
| 5 | FB | Feedback - internally tied to fixed 3.3-V divider; connect to AGND per TI layout guidance to minimize noise coupling. |
| 6 | AGND | Analog ground - tie directly to exposed thermal pad and system analog ground plane to stabilize control loop reference. |
| 7 | FSW | Frequency select - Low = ~2.5 MHz (compact design), High = ~1.25 MHz (higher efficiency); internal pulldown ensures default high-frequency start. |
| 8 | DEF | Voltage margining - Low = 3.3 V nominal, High = 3.465 V (+5%); internal 400-kΩ pulldown prevents floating state. |
| 9 | SS/TR | Soft-start/tracking - external capacitor sets ramp time; enables monotonic startup into pre-biased rails and voltage tracking with master supply. |
| 10 | AVIN | Analog supply - powers control circuitry; connect to same source as PVIN but route separately to reduce noise injection. |
| 11,12 | PVIN | Power supply input - high-current path for MOSFET stage; use multiple vias to thermal pad and low-impedance bulk capacitance. |
| 13 | EN | Enable - active-high; internal 400-kΩ pulldown ensures disable on power-up; supports rail sequencing when driven by upstream regulator. |
| 14 | VOS | Voltage sense - connects to output for precise regulation; keep trace short and away from noisy SW node. |
| 15,16 | PGND | Power ground - tie directly to exposed thermal pad and high-current return path; separate from AGND except at single-point thermal pad. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Enables <10-µs load transient response and <1% output deviation without external compensation components. |
| Seamless power-save mode | Maintains >85% efficiency at 1-mA load while preserving regulation - no audible switching noise or output glitches during mode transition. |
| 100% duty-cycle operation | Supports VIN as low as ~3.5 V for 3.3-V output - extends runtime in battery-powered systems down to end-of-discharge voltage. |
| Integrated protection | Includes overtemperature shutdown (160°C), undervoltage lockout (2.7 V), and short-circuit current limiting (1.6 A during fault). |
| Pin-selectable voltage margining | DEF pin toggles output between 3.3 V and 3.465 V - enables system-level voltage margin testing without hardware change. |
Applications
| Embedded Systems Power | Solid-State Drive (SSD) Rail |
|---|---|
|
Use Scenario: Powers ARM-based microcontrollers and peripheral interfaces in industrial gateways with tight board space and thermal constraints. IC Role / Device Role / Timing Role: Primary POL regulator delivering stable 3.3-V rail from 12-V backplane or dual-cell Li-ion battery. Use Value: DCS-Control™ ensures <50-mV output deviation during 1-A step load transients, eliminating need for oversized output capacitance. |
Use Scenario: Supplies 3.3-V VCC for NAND flash controllers and DRAM buffers in M.2 NVMe SSD modules. IC Role / Device Role / Timing Role: High-density buck converter enabling <100-mm² total solution size including inductor and caps. Use Value: 2.5-MHz switching allows use of 2.2-µH shielded inductor, reducing height to <1.2 mm and meeting PCIe thermal envelope. |
| Mobile PC Core Logic | LDO Replacement in Data Terminals |
|
Use Scenario: Replaces linear regulators for USB-C PD sink logic and display interface ICs in thin-and-light notebooks. IC Role / Device Role / Timing Role: Efficient 3.3-V generation from 5-V or 9-V USB-C PD bus, minimizing heat in confined chassis. Use Value: 17-µA quiescent current extends battery life >20% versus LDOs; 100% duty cycle sustains operation until battery drops to 3.5 V. |
Use Scenario: Powers real-time clock (RTC), secure element, and touch controller in ePOS terminals running 24/7 on AC adapter. IC Role / Device Role / Timing Role: Drop-in replacement for obsolete 3.3-V LDOs, converting 5-V rail with >85% efficiency at 10-mA load. Use Value: Eliminates LDO thermal derating issues - operates continuously at 125°C junction temperature with proper thermal pad layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62130RGTT | Adjustable output (0.9–6 V) via FB resistor divider; identical pinout, package, and DCS-Control™ architecture. | Requires external resistors and layout changes; suited for designs needing multiple output voltages from same footprint. | Select when flexibility in output voltage outweighs BOM simplification; not drop-in for fixed 3.3-V use. |
| TPS62140RGTT | Same 3-A rating and 3–17-V input, but 1.2-V to 5.5-V adjustable output; pin-compatible with TPS62132RGTT except DEF/FSW logic levels differ slightly. | Designed for lower-voltage SoC cores (e.g., 1.8 V, 2.5 V); lacks native 3.3-V fixed option and requires revalidation of soft-start timing. | Choose only if migrating to sub-3.3-V rails; verify PG behavior and margining compatibility before substitution. |
Compared with TPS62132RGTT, the TPS62130RGTT offers design flexibility at the cost of added components, while the TPS62140RGTT targets different voltage domains - neither is a direct functional replacement without schematic and layout review.
Availability
TPS62132RGTT is available at Aetrix Electronics and suitable for embedded systems power, solid-state drive (SSD) rail generation, and mobile PC core logic applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62132RGTT 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 ICs for industrial, automotive, and computing markets.
The TPS6213x product line was designed specifically for high-density point-of-load conversion in space- and efficiency-critical applications - emphasizing small solution size, fast transient response, and seamless light-load efficiency without external compensation.
FAQ
What is the output voltage tolerance of the TPS62132RGTT under full load and temperature range?
The TPS62132RGTT delivers a fixed 3.3-V output with initial accuracy of ±1.5% at room temperature and ±1.7% over the full operating junction temperature range (–40°C to 125°C) in PWM mode. Load regulation contributes ≤0.05%/A and line regulation ≤0.02%/V, meaning total deviation remains within ±2.5% across 0–3-A load and 3–17-V input - verified per Section 7.5 of the SLVSAG7F datasheet.
Does the TPS62132RGTT support pre-biased output startup?
Yes, the TPS62132RGTT supports monotonic pre-biased startup: when enabled into a pre-charged output, both MOSFETs remain off until the internal soft-start ramp exceeds the existing VOUT level. During this phase, the current limit is reduced to 1.6 A to prevent reverse current flow - confirmed in Section 8.3.2 and Figure 9-34 of the datasheet.
How does the power-good (PG) pin behave during thermal shutdown or undervoltage lockout?
During thermal shutdown or undervoltage lockout (VIN < 2.7 V), the PG pin of the TPS62132RGTT enters high-impedance state - identical to its behavior during EN = Low. This open-drain condition holds downstream circuits in reset until regulation resumes, as defined in Table 8-1 of the SLVSAG7F datasheet.
Can the TPS62132RGTT operate with a 1.5-µH inductor instead of the recommended 2.2 µH?
Yes - the TPS62132RGTT can operate with a 1.5-µH inductor at 2.5-MHz switching frequency, but peak inductor current increases by ~25%, raising RMS losses and thermal stress. TI recommends ≥2.2 µH for full 3-A capability and optimal efficiency; 1.5 µH may be acceptable for <2-A average loads with careful thermal validation.
Is the exposed thermal pad of the TPS62132RGTT electrically connected to ground?
Yes - the exposed thermal pad of the TPS62132RGTT is internally connected to both AGND (Pin 6) and PGND (Pins 15,16). It must be soldered to a common PCB ground plane with ≥6 thermal vias (0.3-mm diameter) to ensure proper thermal dissipation and electrical stability per Section 11.2 Layout Example in the datasheet.
TPS62132RGTT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 16-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 3A
- Frequency - Switching:
- 2.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-VQFN (3x3)
TPS62132RGTT FAQ
1.How can I place an order for TPS62132RGTT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62132RGTT 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 TPS62132RGTT reliable?
The price and inventory of TPS62132RGTT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62132RGTT is usually 5 days.
3.What payment methods are accepted for TPS62132RGTT?
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4.How is shipping managed for TPS62132RGTT?
TPS62132RGTT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62132RGTT 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 TPS62132RGTT?
For technical support, including TPS62132RGTT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62132RGTT requirements.
6.How does Aetrix verify that TPS62132RGTT is sourced from the original manufacturer or authorized distributors?
All TPS62132RGTT 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 TPS62132RGTT meets industry standards.
7.What is the process for return or replacement of TPS62132RGTT?
All TPS62132RGTT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62132RGTT, 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 TPS62132RGTT part is unused and in its original packaging.
Return procedure for TPS62132RGTT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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