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Texas Instruments TPS62110RSAT
- Part No.:
- TPS62110RSAT
- Manufacturer:
- Texas Instruments
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
TPS62110RSAT.pdf
- Description:
- IC REG BUCK ADJ 1.5A 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,290
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Product details
Overview
TPS62110RSAT from Texas Instruments is an adjustable-output, synchronous step-down DC-DC converter optimized for battery-powered and 12-V bus systems. It delivers up to 1.5 A output current with 92% peak efficiency at 12 VIN/3.3 VOUT, operates from 3.1 V to 17 V input, features 1 MHz fixed-frequency PWM or PFM/PWM hybrid mode, and supports external synchronization up to 1.4 MHz - used in point-of-load regulation for handheld scanners and industrial PDAs.
For engineers reviewing the TPS62110RSAT datasheet, TPS62110RSAT pinout, TPS62110RSAT application, or TPS62110RSAT equivalent, key selection criteria include its 1.2 V–16 V adjustable output range, 20 µA quiescent current (typical), 16-pin VQFN (RSA) package with exposed thermal pad, integrated N-/P-channel MOSFETs, and power-good/low-battery monitoring functions.
Technical Context
The TPS62110RSAT employs voltage-mode control with input-voltage feedforward for fast line/load transient response and stable operation with small ceramic capacitors. Its dual-MOSFET synchronous architecture eliminates external diode losses and enables 100% duty cycle for ultra-low dropout operation.
It integrates undervoltage lockout (2.8–3.1 V threshold), thermal shutdown (145°C trip), overcurrent protection (2.1–2.6 A limit), and a programmable low-battery detector (1.256 V LBI threshold). The SYNC pin controls functional mode: high enables forced PWM (low-noise), low enables PFM/PWM auto-switching for light-load efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.1 V to 17 V - supports 2–4-cell Li-ion batteries and standard 12-V/15-V rails without external regulators. |
| Output Voltage Range | 1.2 V to 16 V (adjustable via FB resistor divider) - enables single-part flexibility across multiple system rails. |
| Max Output Current | 1.5 A at VIN ≥ 6 V - sufficient for FPGA I/O, microcontroller cores, and sensor subsystems. |
| Switching Frequency | 1 MHz (internal) or 0.8–1.4 MHz (externally synchronized) - allows compact 6.8 µH inductors and 22 µF ceramic output caps. |
| Quiescent Current | 20 µA (typical, PFM mode) - extends battery life in always-on portable devices. |
| Efficiency Peak | 92% at 12 VIN/3.3 VOUT/600 mA - reduces thermal load and improves power density in space-constrained designs. |
| Protection Features | Overcurrent, thermal shutdown (145°C), UVLO (2.8 V min), and soft-start - ensures robust startup and fault recovery without external circuitry. |
Pinout & Package
TPS62110RSAT is housed in a 4.00 mm × 4.00 mm, 16-pin VQFN (RSA) package with exposed thermal pad soldered to AGND for enhanced thermal performance (RθJA = 48.2°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AGND (Pin 9) | Analog ground reference | Low-noise return path for feedback and internal bias circuits; must be connected to PGND/GND plane with short trace. |
| EN (Pin 4) | Enable control input | Logic-high enables regulation; logic-low reduces supply current to <2 µA; must not be left floating. |
| FB (Pin 10) | Feedback input | Connects to resistor divider for output voltage setting; internal 1.153 V reference enables precise 1.2–16 V adjustment. |
| GND (Pins 11,12) | Digital ground | Reference for EN, SYNC, PG, LBO; ties to system ground plane near PGND for noise immunity. |
| LBI (Pin 7) | Low-battery monitor input | Accepts resistive divider from battery; trips at 1.256 V ±1.5% to signal end-of-life or initiate graceful shutdown. |
| LBO (Pin 6) | Low-battery open-drain output | Pulled low when LBI falls below threshold; requires external pullup to VO or another rail ≤17 V. |
| PG (Pin 13) | Power-good open-drain output | Asserts high when VOUT > 98.4% of nominal; requires pullup to VOUT; invalid during first 250 µs after enable. |
| PGND (Pins 1,16) | Power ground return | Primary return path for high-current switch node; must be low-inductance connection to VIN capacitor ground. |
| SW (Pins 14,15) | Switch node | Connects to inductor; carries high dv/dt switching waveform; requires tight layout to minimize EMI and losses. |
| VIN (Pins 2,3) | Main power input | Supplies power stage; accepts 3.1–17 V; requires local 10 µF ceramic capacitor close to pins. |
| VINA (Pin 8) | Analog supply input | Provides clean bias for control circuitry; decoupled separately with 1 µF ceramic cap. |
| SYNC (Pin 5) | Sync mode control | High = forced PWM (low-noise); low = PFM/PWM auto-switching; CMOS-level compatible; enables clock synchronization. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated N-/P-channel MOSFETs | Eliminates external rectifier diode and reduces BOM count; RDS(on) ≤ 250 mΩ (P-ch) / ≤ 200 mΩ (N-ch) minimizes conduction loss. |
| PFM/PWM hybrid operation | Maintains >85% efficiency down to 100 µA load by automatically entering pulse-frequency modulation at light loads. |
| 100% duty cycle capability | Enables dropout as low as VOUT – 0.1 V (e.g., 3.2 VOUT from 3.3 VIN), critical for battery brownout survival. |
| Programmable low-battery detection | Configurable LBI threshold via external resistor divider; hysteresis supports reliable battery voltage monitoring without external SVS. |
| Power-good and thermal protection | PG output confirms regulation stability; thermal shutdown at 145°C prevents damage during overload or poor heatsinking. |
Applications
| Handheld Scanners | Industrial PDAs |
|---|---|
Use Scenario: Portable barcode scanner powered by 3.7 V Li-ion battery with 5 V motor driver and 3.3 V logic rail. IC Role / Device Role / Timing Role: Primary step-down regulator generating stable 3.3 V for MCU, display, and interface ICs; manages battery discharge curve. Use Value: 20 µA quiescent current extends standby time; PFM mode sustains >80% efficiency at 50 µA sleep current; 100% duty cycle maintains operation down to 3.4 V battery. |
Use Scenario: Ruggedized PDA operating from 12 V vehicle supply with isolated 1.8 V, 3.3 V, and 5 V rails. IC Role / Device Role / Timing Role: Point-of-load converter for 3.3 V I/O and communication peripherals; synchronized to system clock to reduce EMI. Use Value: External SYNC input locks switching to 1.2 MHz, avoiding sensitive frequency bands; 1.5 A output supports USB host and SD card interfaces simultaneously. |
| Medical Handheld Devices | Test & Measurement Modules |
Use Scenario: Battery-operated glucose meter with LCD, sensor front-end, and BLE radio requiring low-noise 3.3 V supply. IC Role / Device Role / Timing Role: Main power regulator delivering clean 3.3 V; LBI monitors battery health; PG signals system readiness. Use Value: Forced PWM mode (SYNC = high) suppresses audible noise and ripple; 92% efficiency at 600 mA reduces thermal stress in sealed enclosure. |
Use Scenario: Compact benchtop DMM module drawing variable load from 12 V input while maintaining precision analog references. IC Role / Device Role / Timing Role: Adjustable-output buck supplying 5 V for digital logic and 1.2 V for ADC reference; FB pin enables fine-tuning. Use Value: 1.2–16 V output range allows one BOM to support multiple voltage requirements; ±2% feedback tolerance ensures reference accuracy. |
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 |
|---|---|---|---|
| TPS62113RSAT | Same pinout and package; adds enhanced LBI functionality with 10 µA quiescent current during LBI supervision (vs. 20 µA in TPS62110RSAT). | Preferred where battery voltage monitoring must occur before full enable (e.g., fuel gauging prior to system boot). | Select TPS62113RSAT only if early-stage low-battery detection with sub-20 µA wake-up is required; otherwise TPS62110RSAT offers identical regulation performance. |
| TPS62130ARGTR | 3–17 V input, 3 A output, 2.5 MHz switching, 10-pin VSON package - higher current, smaller footprint, no LBI/LBO/PG pins. | Suitable for higher-power applications without battery monitoring needs; lacks integrated low-battery comparator. | Choose TPS62130ARGTR when output current >1.5 A or board area is constrained; avoid if LBI/LBO/PG signals are mandatory for system safety. |
Compared with TPS62113RSAT, the TPS62110RSAT provides identical regulation, efficiency, and protection but omits pre-enable LBI supervision. Versus TPS62130ARGTR, it trades higher current and frequency for integrated power-monitoring features and lower quiescent current - making it optimal for battery-aware, moderate-power embedded systems.
Availability
TPS62110RSAT is available at Aetrix Electronics and suitable for point-of-load regulation from 12-V buses, handheld scanners, and industrial PDAs requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62110RSAT 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 TPS6211x product line was designed specifically for space-constrained, battery-sensitive applications requiring high efficiency across wide load ranges - including portable instrumentation, medical handhelds, and industrial edge devices.
FAQ
What is the maximum output current capability of the TPS62110RSAT?
The TPS62110RSAT delivers up to 1.5 A output current when input voltage is ≥6 V. At lower input voltages, maximum current decreases: 1.2 A at VIN ≥4.3 V, 500 mA at VIN ≥3.5 V, and 100 mA at VIN ≥3.1 V. This dependency is due to internal current-limit thresholds and thermal constraints - actual sustained current must be verified against junction temperature rise using RθJA = 48.2°C/W and ambient conditions.
Does the TPS62110RSAT support adjustable output voltage, and how is it configured?
Yes, the TPS62110RSAT supports adjustable output from 1.2 V to 16 V via an external resistor divider on the FB pin. The internal reference is 1.153 V, so R1 (top) and R2 (bottom) are selected using VOUT = 1.153 × (1 + R1/R2). TI recommends R1 + R2 between 100 kΩ and 1 MΩ for optimal efficiency and noise immunity. The TPS62110RSAT does not include an internal feedback divider - it is fully disabled for adjustability.
How does the SYNC pin affect the operating mode of the TPS62110RSAT?
The SYNC pin on the TPS62110RSAT determines switching mode: when pulled high (≥1.5 V), it forces constant-frequency PWM operation for low-noise, EMI-controlled applications; when pulled low (≤0.3 V), it enables automatic PFM/PWM mode switching to maintain high efficiency at light loads. It also accepts external clock signals from 0.8 MHz to 1.4 MHz - synchronization is automatic on first rising edge, and the device reverts to internal 1 MHz clock if SYNC signal stops.
What protection features are integrated into the TPS62110RSAT?
The TPS62110RSAT integrates overcurrent protection (2.1–2.6 A typical limit), thermal shutdown (145°C trip), undervoltage lockout (2.8–3.1 V hysteresis), and soft-start (1 ms typical with 22 µF output cap). It also includes power-good (PG) and low-battery output (LBO) comparators with open-drain outputs, plus internal current limiting on both P- and N-channel MOSFETs. These features eliminate need for external supervisors or discrete protection circuitry.
Is the TPS62110RSAT pin-compatible with other devices in the TPS6211x family?
Yes, the TPS62110RSAT shares identical 16-pin VQFN (RSA) pinout and package with TPS62111RSAT, TPS62112RSAT, and TPS62113RSAT. All four variants use the same PCB footprint and thermal pad layout. Functional differences - such as fixed vs. adjustable output, standard vs. enhanced LBI, and presence of PG/LBO - are implemented internally and do not affect mechanical or electrical interconnect compatibility.
TPS62110RSAT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-VQFN 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):
- 3.1V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- 16V
- Current - Output:
- 1.5A
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (4x4)
TPS62110RSAT FAQ
1.How can I place an order for TPS62110RSAT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62110RSAT 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 TPS62110RSAT reliable?
The price and inventory of TPS62110RSAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62110RSAT is usually 5 days.
3.What payment methods are accepted for TPS62110RSAT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62110RSAT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62110RSAT?
TPS62110RSAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62110RSAT 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 TPS62110RSAT?
For technical support, including TPS62110RSAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62110RSAT requirements.
6.How does Aetrix verify that TPS62110RSAT is sourced from the original manufacturer or authorized distributors?
All TPS62110RSAT 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 TPS62110RSAT meets industry standards.
7.What is the process for return or replacement of TPS62110RSAT?
All TPS62110RSAT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62110RSAT, 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 TPS62110RSAT part is unused and in its original packaging.
Return procedure for TPS62110RSAT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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