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Texas Instruments TPS62160DSGR
- Part No.:
- TPS62160DSGR
- Manufacturer:
- Texas Instruments
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
TPS62160DSGR.pdf
- Description:
- IC REG BUCK ADJ 1A 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,339
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Product details
Overview
TPS62160DSGR from Texas Instruments is an adjustable-output, 3-V to 17-V input, 1-A synchronous step-down DC/DC converter featuring DCS-Control™ topology, 2.25-MHz switching frequency, and integrated power good (PG) output. It delivers regulated 0.9–6-V output with 17-µA quiescent current in power save mode and supports 100% duty cycle operation for ultra-low dropout - ideal for Li-ion-powered portable electronics requiring compact, high-efficiency POL conversion.
For engineers reviewing the TPS62160DSGR datasheet, TPS62160DSGR pinout, TPS62160DSGR application, or TPS62160DSGR equivalent, key selection considerations include its VSSOP-8 package, seamless PWM-to-power-save transition, thermal shutdown at 160°C, undervoltage lockout at 2.7 V, and compatibility with 2.2-µH inductors and 22-µF output capacitors.
Technical Context
The TPS62160DSGR implements DCS-Control™ - a hybrid regulation architecture combining fast AC voltage feedback via direct comparator control with a stable DC voltage feedback loop - enabling immediate transient response and high DC accuracy without external compensation. Its internal error amplifier, soft-start circuitry, and fixed on-time control logic coordinate switching behavior across load conditions.
This device operates in three functional modes: PWM mode (2.25 MHz, continuous conduction), power save mode (frequency scales linearly with load), and 100% duty cycle mode (high-side FET fully on when VIN ≈ VOUT). Protection features include overtemperature shutdown (160°C), short-circuit current limiting (1.45–2.45 A), and undervoltage lockout (2.7 V with 180-mV hysteresis).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 17 V - supports single/dual Li-ion batteries and standard 12-V intermediate rails without pre-regulation. |
| Output Current | Up to 1 A continuous - sufficient for core logic, FPGA I/O, or microcontroller subsystems in space-constrained designs. |
| Switching Frequency | Typically 2.25 MHz - enables use of small 2.2-µH inductors and reduces output ripple without compromising transient response. |
| Quiescent Current | 17 µA typical in power save mode - extends battery runtime in always-on or low-duty-cycle applications. |
| Output Voltage Range | Adjustable 0.9 V to 6 V via FB pin resistor divider - supports DDR termination, DSP cores, and mixed-voltage SoCs. |
| Thermal Shutdown | 160°C junction temperature with 20°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
| Power Good Output | Open-drain PG pin with 92–98% VOUT threshold - enables reliable power sequencing with downstream processors or FPGAs. |
Pinout & Package
TPS62160DSGR is packaged in an 8-pin VSSOP (DGK) measuring 3.00 mm × 3.00 mm with exposed pad not present - optimized for thermal performance in moderate-power density layouts without requiring soldered thermal vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND (Pin 1) | Power ground return | Low-impedance path for high-frequency switch node current; must be connected directly to input/output capacitor ground plane. |
| VIN (Pin 2) | Main supply input | Accepts 3–17 V; requires local 10-µF ceramic decoupling close to pin to suppress high-frequency noise and supply ripple. |
| EN (Pin 3) | Enable control input | Active-high logic (0.9 V threshold); internal 400-kΩ pull-down ensures safe default-off state during power-up or fault conditions. |
| AGND (Pin 4) | Analog ground reference | Separate ground for feedback and control circuitry; must be tied to PGND at single point near IC to avoid noise coupling into FB/VOS. |
| FB (Pin 5) | Feedback voltage sense | Connects to resistor divider from VOUT to set output voltage; leakage <400 nA ensures minimal divider current error. |
| VOS (Pin 6) | Output voltage sense | Direct connection to output rail for precise DCS-Control™ loop sensing; improves regulation accuracy under dynamic load steps. |
| SW (Pin 7) | Switch node | Drives external 2.2-µH inductor; exhibits fast-edge AC transients (<10 ns); requires tight layout with minimal loop area to reduce EMI. |
| PG (Pin 8) | Power good indicator | Open-drain output requiring external pull-up; sinks ≤2 mA at 0.3 V low level; goes high-impedance during shutdown or UVLO. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Combines fast AC comparator-based transient response with stable DC feedback - achieves ±1% output accuracy and <10-µs load-step recovery without external compensation. |
| Seamless power save mode | Automatic transition between PWM and PSM maintains >85% efficiency from 1 mA to 1 A load - eliminates audible coil whine and output voltage glitches. |
| 100% duty cycle operation | Enables regulation down to VIN − VOUT = RDS(on) × IOUT + IOUT × RL - extends battery life in portable devices by minimizing dropout voltage loss. |
| Integrated protection suite | Includes thermal shutdown (160°C), short-circuit current limit (1.45–2.45 A), undervoltage lockout (2.7 V), and soft-start (25 mV/µs ramp) - reduces need for external fault management circuitry. |
| Pin-to-pin compatibility | Shares footprint and functionality with TPS62170 and TPS62125 - allows design reuse and migration across input voltage or quiescent current requirements. |
Applications
| Li-Ion Portable Power Supply | POL for Embedded Microcontrollers |
|---|---|
|
Use Scenario: Powering ARM Cortex-M7 MCU and peripherals from a single 3.7-V nominal Li-ion cell with variable discharge profile (4.2 V → 3.0 V). IC Role / Device Role / Timing Role: Primary buck regulator delivering 1.2 V @ 800 mA with adaptive 100% duty cycle to maintain regulation until cell reaches 3.0 V. Use Value: Enables full battery utilization without brownout; 17-µA quiescent current extends shelf life in sleep-mode IoT nodes. |
Use Scenario: Local voltage regulation for industrial PLC I/O modules requiring stable 3.3 V from a noisy 12-V backplane rail. IC Role / Device Role / Timing Role: Point-of-load converter with DCS-Control™ ensuring <50-mV output deviation during 100-mA load transients at 100 kHz. Use Value: Eliminates need for post-regulation LDOs; 2.25-MHz switching avoids interference with CAN bus timing signals. |
| Mobile Camera Module Power | USB-Powered Peripheral Regulation |
|
Use Scenario: Supplying image sensor and ISP ASIC in smartphone camera subsystem with strict EMI limits and burst-mode current demands. IC Role / Device Role / Timing Role: High-frequency buck converter using 2.2-µH inductor and 22-µF ceramic output cap to minimize board area and radiated emissions. Use Value: Achieves <15-mV peak-to-peak ripple at 1.8 V output - prevents sensor pixel noise and color banding artifacts. |
Use Scenario: Regulating 5-V USB input to 1.8 V for low-power Bluetooth LE SoC in wearables with tight thermal constraints. IC Role / Device Role / Timing Role: Compact 3-mm² VSSOP solution providing 1-A capability while maintaining <40°C junction rise at full load. Use Value: Avoids thermal derating issues common with larger packages; PG signal synchronizes firmware wake-up with stable rail. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62161DSGR | Fixed 1.8-V output; identical pinout, package, and DCS-Control™ architecture; no FB resistor network required. | Simplifies BOM and layout for fixed-rail systems but lacks output adjustability for multi-voltage SoCs. | Select when 1.8 V is the sole required output and board space for feedback resistors must be minimized. |
| TPS62170DSGR | Same 3–17-V input, 1-A rating, and VSSOP-8 package; uses different control scheme (DCS-Control™ variant with lower IQ of 12 µA). | Better suited for ultra-low-power always-on applications but has reduced thermal margin (RθJA = 184.3°C/W vs. 61.8°C/W for WSON variants). | Prefer for battery lifetime-critical designs where 5-µA IQ reduction outweighs thermal performance trade-offs. |
Compared with TPS62161DSGR, the TPS62160DSGR offers design flexibility through adjustable output voltage at the cost of two external resistors; compared with TPS62170DSGR, it provides superior thermal performance in the same VSSOP package but with slightly higher quiescent current - making it optimal for thermally constrained 1-A POL applications demanding both adjustability and robustness.
Availability
TPS62160DSGR is available at Aetrix Electronics and suitable for Li-ion portable power supplies, embedded microcontroller POL rails, mobile camera module power, and USB-powered peripheral regulation requiring stable component supply, consistent parametric performance, and long-term production support.
Supply support for TPS62160DSGR 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 and automotive-grade reliability.
The TPS6216x product line was engineered specifically for high-power-density portable and embedded systems requiring wide-input-voltage buck regulation with minimal external components and industry-leading light-load efficiency.
FAQ
What is the recommended inductor value for TPS62160DSGR in a typical 12-V to 3.3-V application?
The TPS62160DSGR datasheet specifies a 2.2-µH inductor as the standard value for most applications, including 12-V input to 3.3-V output at up to 1-A load. This value balances ripple current (≈300 mA peak-to-peak), transient response, and physical size. Inductor DCR must be ≤100 mΩ to maintain efficiency and thermal performance; shielded power inductors with ≥2-A saturation current are strongly recommended.
Does TPS62160DSGR support pre-biased output startup?
Yes, the TPS62160DSGR supports monotonic pre-biased startup: during initial enable, the low-side MOSFET remains off until the internal ramp voltage exceeds the pre-existing output voltage, preventing reverse current flow and ensuring controlled voltage rise. This behavior is confirmed in Section 8.4.1 of the SLVSAM2E datasheet and applies to all TPS6216x variants including TPS62160DSGR.
What is the maximum output capacitance supported by TPS62160DSGR?
The TPS62160DSGR supports output capacitors up to 100 µF per the datasheet's stability guidelines, though 22 µF is the typical recommended value using X5R/X7R ceramics. Larger values improve hold-up time and reduce ripple but may affect phase margin if ESR falls below 1 mΩ - TI recommends verifying loop stability with WEBENCH® Power Designer when exceeding 47 µF.
How does the power good (PG) pin behave during thermal shutdown of TPS62160DSGR?
During thermal shutdown, the TPS62160DSGR drives the PG pin to high-impedance state - identical to its behavior during EN=low or UVLO conditions. This open-drain release allows external pull-up logic to detect fault conditions and initiate system-level thermal mitigation, such as reducing processor clock or disabling non-critical peripherals. The PG pin resumes normal operation only after junction temperature falls below the 140°C hysteresis threshold and soft-start completes.
Can TPS62160DSGR operate with input voltage below 3 V?
No - the absolute minimum input voltage for functional operation of TPS62160DSGR is 3 V, as defined in the Recommended Operating Conditions table (Section 7.3). Input voltages below 3 V trigger undervoltage lockout (UVLO), disabling switching and placing PG in high-impedance state. The UVLO threshold is 2.7 V with 180-mV hysteresis, meaning the device will not re-enable until VIN rises above 2.88 V.
TPS62160DSGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 8-WFDFN 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):
- 3V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 0.9V
- Voltage - Output (Max):
- 6V
- Current - Output:
- 1A
- Frequency - Switching:
- 2.25MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (2x2)
TPS62160DSGR FAQ
1.How can I place an order for TPS62160DSGR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62160DSGR 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 TPS62160DSGR reliable?
The price and inventory of TPS62160DSGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62160DSGR is usually 5 days.
3.What payment methods are accepted for TPS62160DSGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62160DSGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62160DSGR?
TPS62160DSGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62160DSGR 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 TPS62160DSGR?
For technical support, including TPS62160DSGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62160DSGR requirements.
6.How does Aetrix verify that TPS62160DSGR is sourced from the original manufacturer or authorized distributors?
All TPS62160DSGR 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 TPS62160DSGR meets industry standards.
7.What is the process for return or replacement of TPS62160DSGR?
All TPS62160DSGR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62160DSGR, 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 TPS62160DSGR part is unused and in its original packaging.
Return procedure for TPS62160DSGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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