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Texas Instruments TPS62160DGKT
- Part No.:
- TPS62160DGKT
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62160DGKT.pdf
- Description:
- IC REG BUCK ADJ 1A 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,896
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Product details
Overview
TPS62160DGKT from Texas Instruments is an adjustable-output, 3-V to 17-V input, 1-A synchronous step-down DC/DC converter with DCS-Control™ topology, 2.25-MHz switching frequency, and integrated power good (PG) output - used in battery-powered embedded systems requiring compact, high-efficiency POL regulation.
For engineers reviewing the TPS62160DGKT datasheet, TPS62160DGKT pinout, TPS62160DGKT application, or TPS62160DGKT equivalent, key selection considerations include its VSSOP-8 package, 17-µA quiescent current in power save mode, seamless PWM-to-PSM transition, 100% duty cycle capability for low VIN–VOUT differentials, and compatibility with 2.2-µH inductors and 22-µF output capacitors.
Technical Context
The TPS62160DGKT implements DCS-Control™ - a hybrid regulation architecture combining fast AC voltage feedback via direct comparator control with a stable DC error amplifier loop, enabling sub-10-µs load transient response and <0.1% line/load regulation. Its internal 0.8-V reference feeds the FB pin for adjustable output configuration.
It operates in three functional modes: PWM (2.25 MHz, continuous conduction), power save mode (frequency scaling down to ~200 kHz at light loads), and 100% duty cycle (high-side FET fully on when VIN approaches VOUT). Protection includes undervoltage lockout (2.7 V ±180 mV), thermal shutdown (160°C), and cycle-by-cycle current limiting (1.95 A typical).
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 external pre-regulation. |
| Output Current | Up to 1 A continuous - sufficient for FPGA I/O banks, microcontroller cores, and imaging sensor supplies. |
| Switching Frequency | Typically 2.25 MHz - enables use of 2.2-µH inductors & compact 22-µF ceramic output capacitors, reducing solution footprint. |
| Quiescent Current | 17 µA (typical) in power save mode - extends battery runtime in always-on IoT nodes and portable devices. |
| Output Voltage Range | Adjustable from 0.9 V to 6 V via FB resistor divider - covers core voltages for ARM Cortex-M, DSPs, and interface ICs. |
| Power Good Output | Open-drain PG with 92–98% VOUT threshold - enables reliable power sequencing and system reset assertion in multi-rail designs. |
| Thermal Shutdown | 160°C with 20°C hysteresis - protects against sustained overload or poor PCB thermal design without latch-up. |
Pinout & Package
TPS62160DGKT 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 space-constrained 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 routed separately from AGND to minimize noise coupling. |
| VIN (Pin 2) | Main supply input | Accepts 3–17 V; requires local 10-µF ceramic bypass capacitor placed near pin to suppress high-frequency ripple. |
| EN (Pin 3) | Enable control input | Active-high logic; internal 400-kΩ pull-down ensures safe default-off state; supports rail sequencing when driven by upstream regulator. |
| AGND (Pin 4) | Analog ground reference | Reference for FB, VOS, and internal error amplifier; must connect to clean ground plane and tie to PGND at single point. |
| FB (Pin 5) | Feedback voltage sense | Connects to resistor divider from VOUT; sets output voltage as VOUT = 0.8 V × (1 + R1/R2); leakage <400 nA preserves accuracy. |
| VOS (Pin 6) | Output voltage sense | Direct connection to output capacitor; provides precise sensing for DCS-Control™ loop - improves regulation under dynamic loads. |
| SW (Pin 7) | Switch node | Drives external 2.2-µH inductor; high dv/dt node requiring short, wide trace and tight layout to minimize EMI and ringing. |
| PG (Pin 8) | Power good indicator | Open-drain output; requires external pull-up (e.g., to 3.3 V); asserts high when VOUT reaches 92–98% of target, enabling system boot coordination. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Combines fast AC comparator-based transient response with DC error amplifier stability - achieves <10-µs load step recovery and <0.1% output deviation. |
| Seamless power save mode | Automatic, glitch-free transition between PWM and PSM without output voltage dip or audible noise - maintains >85% efficiency down to 100-µA loads. |
| 100% duty cycle operation | Enables regulation when VIN drops to ~15% above VOUT - extends runtime in battery discharge profiles (e.g., 3.3 V out from 3.6→3.4 V Li-ion). |
| Integrated protection | Includes cycle-by-cycle current limit (1.95 A typ), thermal shutdown (160°C), UVLO (2.7 V), and soft-start (25 mV/µs ramp) - eliminates need for external fault management circuitry. |
| Precision power good | PG threshold tightly specified at 92–98% VOUT rising and 87–93% falling - enables robust sequencing in multi-supply systems without external monitoring ICs. |
Applications
| Mobile PC Core Supply | Digital Still Camera Sensor Bias |
|---|---|
|
Use Scenario: Regulating 1.2 V for ARM Cortex-A series SoC cores in ultra-thin notebooks with dual-cell Li-ion (6–8.4 V input). IC Role / Device Role / Timing Role: Primary POL buck converter delivering up to 1 A with fast transient response to CPU burst loads. Use Value: 2.25-MHz switching allows 2.2-µH inductor and 22-µF output cap - reduces total solution size by >40% vs. 500-kHz alternatives. |
Use Scenario: Providing stable 2.8 V bias to CMOS image sensors in DSLR cameras powered from 7.4-V dual Li-ion packs. IC Role / Device Role / Timing Role: Low-noise, high-PSRR POL regulator with 100% duty cycle support for extended low-VIN operation during battery discharge. Use Value: DCS-Control™ delivers <5-mV undershoot during 500-mA load steps - prevents sensor frame corruption and rolling shutter artifacts. |
| Industrial PLC I/O Module | Smartphone Application Processor Rail |
|
Use Scenario: Generating 3.3 V for isolated digital I/O buffers in DIN-rail mounted programmable logic controllers operating from 12-V field bus. IC Role / Device Role / Timing Role: Input-flexible buck converter handling 3–17 V input range while maintaining regulation during 12-V rail dips and surges. Use Value: 17-µA quiescent current in PSM extends standby time in battery-backed PLCs; PG signal coordinates firmware-initiated safe shutdown. |
Use Scenario: Delivering 1.05 V to smartphone AP cores from single Li-ion (3.0–4.2 V), requiring high efficiency across 0.1–1 A load range. IC Role / Device Role / Timing Role: High-density POL regulator with seamless PWM/PSM transition and 100% duty cycle for full battery utilization. Use Value: Achieves >92% peak efficiency and <20-µA no-load IQ - directly increases talk-time and reduces thermal load on AP die. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62161DGKT | Fixed 1.8-V output; identical pinout, package, and DCS-Control™ architecture; no FB/VOS divider required. | Suitable where 1.8-V rail is fixed and board space is constrained - eliminates two resistors and simplifies layout. | Select TPS62161DGKT if output voltage is fixed at 1.8 V and design prioritizes BOM reduction over adjustability. |
| TPS62170DGKT | Same 3–17-V input, 1-A rating, and VSSOP-8 package; uses voltage-mode control (not DCS-Control™); 2.2-MHz nominal frequency. | Lacks seamless PSM transition and fast transient response - exhibits larger output deviation under 100-mA load steps. | Choose TPS62170DGKT only if cost sensitivity outweighs need for high dynamic performance and lowest IQ. |
Compared with TPS62160DGKT, TPS62161DGKT removes adjustment flexibility but saves two passive components, while TPS62170DGKT trades DCS-Control™'s sub-10-µs transient response and 17-µA IQ for slightly lower unit cost and simpler compensation.
Availability
TPS62160DGKT is available at Aetrix Electronics and suitable for mobile PCs, industrial PLCs, digital still cameras, and smartphone application processor rails requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62160DGKT 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 designed specifically for high-power-density point-of-load applications in portable and battery-operated systems - emphasizing ultra-small footprint, low IQ, and seamless light-load efficiency without sacrificing transient performance.
FAQ
What is the recommended inductor value for TPS62160DGKT in a typical 12-V to 3.3-V application?
The TPS62160DGKT datasheet specifies 2.2 µH as the recommended inductor value for standard operation - this value balances ripple current (~300 mA), transient response, and size constraints. Using 2.2 µH with 100% duty cycle support ensures stable regulation down to VIN ≈ 3.8 V while maintaining DCS-Control™ loop stability and minimizing EMI.
Does TPS62160DGKT support pre-biased output startup?
Yes, the TPS62160DGKT supports monotonic pre-biased startup: during initial enable, the low-side MOSFET remains off until the internal ramp exceeds the existing output voltage, preventing reverse current flow and ensuring controlled voltage rise - critical for hot-swap and multi-rail sequencing applications.
What is the maximum output capacitance supported by TPS62160DGKT?
The TPS62160DGKT is characterized with up to 22 µF ceramic output capacitance and remains stable with higher values when using low-ESR types; however, exceeding 47 µF may affect soft-start timing and transient overshoot due to increased energy storage - TI recommends verifying loop stability via simulation or bench test for >22 µF designs.
How does the TPS62160DGKT handle input voltage dropout near the UVLO threshold?
The TPS62160DGKT features a 2.7-V UVLO threshold with 180-mV hysteresis: when VIN falls below 2.7 V, the device shuts down cleanly; it restarts only after VIN rises above 2.88 V - preventing erratic switching or brownout behavior during battery sag or intermittent supply conditions.
Can the TPS62160DGKT operate with an input voltage lower than 3 V?
No - the absolute minimum input voltage for functional operation is 3 V per the Recommended Operating Conditions table; operation below 3 V violates specification and may result in undefined behavior, including failure to regulate or activate UVLO. The 2.7-V UVLO threshold is a shutdown trigger, not an operational lower bound.
TPS62160DGKT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- 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-VSSOP
TPS62160DGKT FAQ
1.How can I place an order for TPS62160DGKT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62160DGKT 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 TPS62160DGKT reliable?
The price and inventory of TPS62160DGKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62160DGKT is usually 5 days.
3.What payment methods are accepted for TPS62160DGKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62160DGKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62160DGKT?
TPS62160DGKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62160DGKT 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 TPS62160DGKT?
For technical support, including TPS62160DGKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62160DGKT requirements.
6.How does Aetrix verify that TPS62160DGKT is sourced from the original manufacturer or authorized distributors?
All TPS62160DGKT 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 TPS62160DGKT meets industry standards.
7.What is the process for return or replacement of TPS62160DGKT?
All TPS62160DGKT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62160DGKT, 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 TPS62160DGKT part is unused and in its original packaging.
Return procedure for TPS62160DGKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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