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Texas Instruments TPS62510DRCT
- Part No.:
- TPS62510DRCT
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS62510DRCT.pdf
- Description:
- IC REG BUCK ADJ 1.5A 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:735
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Product details
Overview
TPS62510 from Texas Instruments is a high-efficiency synchronous step-down DC-DC converter optimized for 1.8-V to 3.8-V input rails, delivering up to 1.5 A at adjustable output voltages down to 0.6 V. It features 1.5-MHz fixed-frequency PWM operation, 96% peak efficiency, 22-μA quiescent current in power-save mode, and integrated output voltage tracking (OVT) for reliable power sequencing in portable systems.
For engineers reviewing the TPS62510 datasheet, TPS62510 pinout, TPS62510 application, or TPS62510 equivalent, this page delivers verified technical context, validated pin functions, real-world application cards, and two confirmed alternative parts with documented functional and application-level differences - all grounded in TI's SLVS651B datasheet and official design documentation.
Technical Context
The TPS62510 implements voltage-mode control with input-voltage feed-forward for fast line/load regulation and stable operation with small ceramic capacitors. Its dual-mode operation-fixed-frequency PWM (MODE = high) or automatic PFM/PWM transition (MODE = low)-enables high efficiency across 0–1.5-A load range while maintaining low output ripple.
It integrates a 0.6-V internal reference, supports external OVT-based sequencing via a dedicated analog input, and includes thermal shutdown (160°C), undervoltage lockout (1.55 V on AVIN), soft-start (750 μs), and short-circuit protection via high- and low-side current sensing. The device uses internal compensation tuned for 2.2-μH inductors and 22-μF output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8 V to 3.8 V - supports 2-cell alkaline/NiMH batteries and fixed 1.8/2.5/3.3-V rails without external LDO pre-regulation. |
| Output Current | 1.5 A continuous - sufficient for core voltage regulation of low-power processors and FPGAs in portable devices. |
| Switching Frequency | 1.5 MHz (PWM mode) - enables compact 2.2-μH inductor and 22-μF ceramic output capacitor; supports external sync from 1.15–2.25 MHz. |
| Quiescent Current | 22 μA (power-save mode) - extends battery life in standby or light-load states without sacrificing wake-up response. |
| Feedback Reference | 0.6 V ±1% - sets precise output voltage via external resistor divider; enables adjustable outputs from 0.6 V to VIN. |
| Efficiency Peak | 96% - achieved at mid-load under 3.3-V input/1.5-V output conditions, minimizing thermal stress in space-constrained layouts. |
| Power Good Threshold | ±5% of target VOUT - open-drain PG signal asserts high-Z when FB ≥95% of 0.6 V, enabling safe system power sequencing. |
Pinout & Package
TPS62510 is housed in a thermally enhanced 3-mm × 3-mm, 10-pin VSON package (DRC) with an exposed thermal pad connected to AGND for optimal PCB heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW (Pin 1) | Switch node | Connects directly to inductor; carries high di/dt switching current - requires tight layout and Kelvin connection to minimize noise. |
| PGND (Pin 2) | Power ground | Return path for high-current power stage; must be separated from AGND until joined at single point near thermal pad. |
| AGND (Pin 3) | Analog ground | Reference for feedback, OVT, EN, MODE, and internal circuitry; connects to exposed thermal pad for low-noise bias stability. |
| FB (Pin 4) | Feedback sense | Monitors output voltage via resistor divider; 0.001–0.05 μA bias current enables high-impedance dividers to minimize quiescent loss. |
| OVT (Pin 5) | Output voltage tracking input | Overrides internal 0.6-V reference when driven below 0.6 V - enables controlled ramp-up relative to another rail (e.g., I/O before core). |
| EN (Pin 6) | Enable control | Active-high logic input; requires termination (not floating); 0.4 V low / 1.2 V high thresholds ensure robust noise immunity. |
| MODE (Pin 7) | Operation mode select | Low = auto PFM/PWM transition; High = forced 1.5-MHz PWM - also accepts external sync clock (1.15–2.25 MHz). |
| PG (Pin 8) | Power good indicator | Open-drain output; pulled low if VOUT drops >10% or EN = low - used for sequenced enable of downstream regulators. |
| AVIN (Pin 9) | Analog supply | Filtered input for control circuitry; must connect to same source as PVIN via RC filter to suppress switching noise on internal bandgap. |
| PVIN (Pin 10) | Power input | Main input for power stage; rated 1.8–3.8 V; shares voltage domain with AVIN but carries high pulsed current - requires local 22-μF ceramic cap. |
Key Features
| Feature | Design Value |
|---|---|
| 100% duty-cycle low-dropout mode | Enables regulation down to VOUT + IOUT × RDS(on)_PCH - extends usable battery range in 2-cell alkaline/NiMH applications. |
| Integrated OVT-based sequencing | Eliminates need for external tracking ICs; allows precise control of VOUT ramp rate relative to external voltage (e.g., FPGA I/O before core). |
| Internal loop compensation | Optimized for 2.2-μH / 22-μF output filter - removes need for external compensation network and simplifies layout validation. |
| Thermal shutdown with hysteresis | Shuts down at 160°C junction temp; resumes at 140°C - prevents thermal runaway during overload or poor airflow conditions. |
| Undervoltage lockout on AVIN | 1.55-V threshold with 150-mV hysteresis - avoids erratic startup or brownout operation when battery voltage sags near end-of-life. |
Applications
| Mobile Phone Power Management | WiMAX/WLAN Baseband Sequencing |
|---|---|
Use Scenario: Dual-rail power delivery to baseband processor requiring I/O voltage to stabilize before core voltage. IC Role / Device Role / Timing Role: Primary point-of-load regulator providing 1.5-V core supply with OVT pin driven by 1.8-V I/O rail to enforce safe startup order. Use Value: Prevents FPGA latch-up by ensuring VIO reaches regulation before VCORE begins ramping - eliminates need for discrete sequencing timers. |
Use Scenario: Compact RF module requiring ultra-low quiescent current during sleep mode and fast transient response during transmit bursts. IC Role / Device Role / Timing Role: Synchronous buck converter operating in power-save mode (22 μA IQ) at idle, automatically transitioning to 1.5-MHz PWM during high-current TX events. Use Value: Achieves >90% efficiency at 10-mA load and >94% at 1-A load - maximizes battery runtime without compromising RF performance. |
| 2-Cell NiMHd Portable Instrument | Notebook Subsystem Regulation |
Use Scenario: Battery-powered handheld test equipment with wide input voltage swing (2.4 V–3.6 V) and strict thermal limits. IC Role / Device Role / Timing Role: Main system regulator delivering 1.2 V/1.5 A to microcontroller and ADC; uses 100% duty-cycle mode to sustain regulation as battery discharges below 1.8 V headroom. Use Value: Maintains full output voltage down to 1.8-V input - extends operational time by ~18% compared to non-LDO-capable converters. |
Use Scenario: Embedded controller subsystem in ultrabook requiring clean, sequenced 1.5-V supply synchronized with main CPU rail. IC Role / Device Role / Timing Role: Secondary regulator using MODE pin tied to system clock for 1.5-MHz synchronized switching - reduces beat frequencies and EMI in dense PCB layouts. Use Value: Enables 180° phase-shifted operation with companion converter - cuts input RMS current by ~30%, easing input capacitor sizing and EMI filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62506DRCT | Same 10-pin VSON package and 1.5-A rating, but fixed 1.2-V output (non-adjustable); lacks OVT pin and power-good output. | Suitable only for single-rail, non-sequenced applications where output voltage is invariant and no system-level monitoring is required. | Select TPS62506DRCT only when board space and BOM count are prioritized over flexibility - no redesign needed if 1.2 V matches system requirements. |
| TPS62172RGTR | 3-MHz switching frequency, 2-A output, 2.5-V to 6-V input range; uses different 16-pin QFN package and lacks OVT functionality. | Targets higher-input industrial or USB-PD powered systems; incompatible pinout and sequencing capability - requires PCB redesign and firmware adaptation. | Choose TPS62172RGTR only when input exceeds 3.8 V or output current demand exceeds 1.5 A - not a drop-in replacement for TPS62510. |
Compared with TPS62506DRCT and TPS62172RGTR, the TPS62510 uniquely balances ultra-low IQ (22 μA), integrated OVT sequencing, and 1.5-A capability in a 3×3-mm footprint - making it the only option among the three that supports battery-powered, multi-rail, space-constrained portable designs without external support components.
Availability
TPS62510 is available at Aetrix Electronics and suitable for portable devices, 2-cell alkaline/NiMHd applications, and point-of-load regulation requiring stable component supply, long-lifecycle assurance, and traceable sourcing for production programs.
Supply support for TPS62510 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 TPS62510 belongs to TI's NanoPower™ family of ultra-low-IQ DC-DC converters, designed specifically for battery-operated portable electronics where extended runtime, precise power sequencing, and minimal board area are critical.
FAQ
What is the minimum input voltage required for TPS62510 to maintain regulation at 1.5-A load?
The TPS62510 supports 100% duty-cycle operation to sustain regulation down to VOUT + IOUT × RDS(on)_PCH. At 1.5-A load and 3.3-V input, typical P-channel RDS(on) is 120 mΩ - so minimum input is ~1.68 V for a 1.5-V output. This enables full utilization of 2-cell alkaline discharge curves. The TPS62510 datasheet confirms this behavior in Section 7.4.2 and Figure 4.
Can TPS62510 be synchronized to an external clock, and what is the valid frequency range?
Yes, the TPS62510 accepts external synchronization on the MODE pin within 1.15 MHz to 2.25 MHz. The device aligns switching to the falling edge of the incoming clock signal, enabling precise 180° phase shift between multiple converters to reduce input ripple. This capability is explicitly specified in Section 6.5 (Electrical Characteristics) and Section 7.1 of the TPS62510 datasheet.
How does the OVT pin function in TPS62510, and what voltage range is supported?
The OVT pin on the TPS62510 overrides the internal 0.6-V reference when driven below 0.6 V, allowing output voltage to track an external rail. It accepts 0.1–0.5 V inputs with ±15-mV offset error (Section 6.5). When OVT < 0.6 V, the feedback loop regulates to VOUT = V(OVT) × (1 + R1/R2), enabling controlled startup sequencing - a feature confirmed in Figures 7–10 and Section 7.3.1 of the TPS62510 datasheet.
What is the purpose of separating AVIN and PVIN pins on TPS62510?
AVIN supplies clean, filtered power to the analog control circuitry (error amplifier, reference, comparators), while PVIN powers the high-current power stage (MOSFETs, SW node). Separating them prevents switching noise from corrupting regulation accuracy. An RC filter between PVIN and AVIN is mandatory - TI specifies up to 5 mA flows into AVIN during PWM mode, affecting UVLO threshold if filter resistance is too high (Section 7.3.3 and Figure 11).
Does TPS62510 require external compensation components for stability?
No, the TPS62510 features fully internal loop compensation optimized for a 2.2-μH inductor and 22-μF ceramic output capacitor (Section 8.2.2.2). External compensation is neither recommended nor required. Deviating significantly from these values - especially reducing L or C - risks instability due to mismatched pole/zero placement, as confirmed in the "Output Filter Design" subsection of the TPS62510 datasheet.
TPS62510DRCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.8V
- Voltage - Input (Max):
- 3.8V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 3.8V
- Current - Output:
- 1.5A
- Frequency - Switching:
- 1.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS62510DRCT FAQ
1.How can I place an order for TPS62510DRCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62510DRCT 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 TPS62510DRCT reliable?
The price and inventory of TPS62510DRCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62510DRCT is usually 5 days.
3.What payment methods are accepted for TPS62510DRCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62510DRCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62510DRCT?
TPS62510DRCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62510DRCT 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 TPS62510DRCT?
For technical support, including TPS62510DRCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62510DRCT requirements.
6.How does Aetrix verify that TPS62510DRCT is sourced from the original manufacturer or authorized distributors?
All TPS62510DRCT 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 TPS62510DRCT meets industry standards.
7.What is the process for return or replacement of TPS62510DRCT?
All TPS62510DRCT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62510DRCT, 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 TPS62510DRCT part is unused and in its original packaging.
Return procedure for TPS62510DRCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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