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Texas Instruments TPS62162DSGR
- Part No.:
- TPS62162DSGR
- Manufacturer:
- Texas Instruments
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
TPS62162DSGR.pdf
- Description:
- IC REG BUCK 3.3V 1A 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:19,369
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Product details
Overview
TPS62162DSGR from Texas Instruments is a fixed-output 5.0 V, 1-A synchronous step-down DC/DC converter with DCS-Control™ topology, operating from 3 V to 17 V input and delivering up to 1 A continuous output current in a 2.00 mm × 2.00 mm WSON-8 package. It integrates power good (PG), undervoltage lockout (UVLO), thermal shutdown, and seamless PWM-to-power-save mode transition - deployed in POL supplies for mobile PCs and battery-powered embedded systems.
For engineers reviewing the TPS62162DSGR datasheet, TPS62162DSGR pinout, TPS62162DSGR application, or TPS62162DSGR equivalent, key selection criteria include its 5.0 V fixed output, 2.25 MHz nominal switching frequency, 17 µA quiescent current in power save mode, 100% duty cycle capability, and open-drain PG signal for rail sequencing.
Technical Context
The TPS62162DSGR implements DCS-Control™ - a hybrid regulation architecture combining fast AC voltage feedback via direct comparator control with a stable DC voltage loop, enabling high transient response and <±3% output accuracy without external compensation. Its internal error amplifier and ramp generator coordinate gate drive timing to maintain constant frequency in PWM mode and linearly scale frequency in power save mode.
It features integrated high-side (300–600 mΩ) and low-side (120–200 mΩ) MOSFETs, programmable soft-start (~25 mV/µs), 180 mV UVLO hysteresis, and 160°C thermal shutdown with 20°C hysteresis - all supporting robust operation across –40°C to +125°C junction temperature range under dynamic load conditions.
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 Voltage | Fixed 5.0 V - eliminates external feedback resistors, reducing BOM count and layout area for dedicated 5-V rail generation. |
| Max Output Current | 1 A continuous - sufficient for powering microcontrollers, FPGAs, sensors, and interface ICs in space-constrained portable designs. |
| Switching Frequency | Typ. 2.25 MHz - enables use of compact 2.2 µH inductors and low-ESR 22 µF ceramic output capacitors for high-density layouts. |
| Quiescent Current | 17 µA (typ.) - sustains >85% efficiency at 1 mA load, critical for always-on subsystems in battery-backed applications. |
| Power Good Output | Open-drain PG with 92–98% rising threshold - provides reliable system-level power sequencing and fault indication without external logic. |
| Thermal Protection | 160°C shutdown with 20°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
TPS62162DSGR is housed in an 8-pin WSON package (DSG) measuring 2.00 mm × 2.00 mm with exposed thermal pad - optimized for thermal performance and board area efficiency in portable and industrial modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND (Pin 1) | Power ground return | Low-impedance path for high-frequency switch node current; must be connected to thermal pad and system GND plane. |
| VIN (Pin 2) | Main input supply | Accepts 3–17 V; requires local 10 µF ceramic capacitor near pin for high-frequency decoupling and stability. |
| EN (Pin 3) | Enable control input | Active-high logic; internal 400 kΩ pull-down ensures safe default-off state; supports precise power-rail sequencing. |
| AGND (Pin 4) | Analog ground reference | Separate ground for FB/VOS/PG circuitry; must be tied to PGND at single point near thermal pad to minimize noise coupling. |
| FB (Pin 5) | Feedback input | Internally connected to fixed 5.0 V divider; recommended to tie to AGND for improved thermal performance per datasheet. |
| VOS (Pin 6) | Voltage sense input | Direct connection to output capacitor; enables accurate regulation by sensing true output voltage at load point. |
| SW (Pin 7) | Switch node | Drives external 2.2 µH inductor; high dv/dt node requiring tight layout, minimal trace length, and guard ring isolation. |
| PG (Pin 8) | Power good indicator | Open-drain output; requires external pull-up resistor (to ≤7 V); sinks 2 mA when active; high-Z during shutdown/UVLO. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Combines fast AC voltage feedback with DC regulation loop - achieves <10 µs load transient response and ±0.5% line/load regulation without external compensation. |
| 100% duty cycle mode | Enables regulation down to VIN ≈ VOUT + (IOUT × RDS(on)_HS + IOUT × RL) - extends battery runtime in Li-ion systems where input drops to ~5.5 V. |
| Seamless power save mode | Automatically transitions between PWM and PSM without output voltage glitch or audible noise - maintains >80% efficiency from 1 mA to 1 A load. |
| Integrated protection | Includes overcurrent limiting (1.45–2.45 A), thermal shutdown (160°C), UVLO (2.7 V with 180 mV hysteresis), and short-circuit recovery - reduces need for external fault management circuitry. |
| Small solution size | 2.00 mm × 2.00 mm WSON-8 package with only 3 external components (inductor, input/output caps) - ideal for space-limited IoT edge nodes and wearable electronics. |
Applications
| Mobile PC Power Rail | Digital Camera Core Supply |
|---|---|
|
Use Scenario: Powers SoC core voltage (5 V) in ultraportable laptops and 2-in-1 tablets using single-cell Li-ion battery (3.0–4.2 V) and 12-V adapter input. IC Role / Device Role / Timing Role: Primary POL regulator delivering regulated 5 V at up to 1 A with fast transient response to CPU burst loads. Use Value: DCS-Control™ ensures <15 mV output deviation during 100 mA → 1 A load steps; 17 µA IQ extends standby time beyond 72 hours. |
Use Scenario: Supplies image sensor and ISP core logic in DSLR/mirrorless cameras requiring clean, stable 5 V from dual-cell Li-ion (6–8.4 V). IC Role / Device Role / Timing Role: Fixed-output buck converter with PG signal used to enable sensor interface after VOUT stabilization. Use Value: 2.25 MHz switching avoids interference with image sensor clock domains; 100% duty cycle sustains regulation as battery discharges below 5.5 V. |
| Industrial Sensor Node | Modem Baseband Power |
|
Use Scenario: Powers ARM Cortex-M based wireless sensor gateway operating from 12-V field bus with wide ambient temperature range (–40°C to +85°C). IC Role / Device Role / Timing Role: High-reliability 5 V supply with thermal shutdown and UVLO to prevent brownout-induced firmware corruption. Use Value: RθJA = 61.8°C/W enables full 1 A output without heatsink at 50°C ambient; PG signal validates power integrity before RF module initialization. |
Use Scenario: Generates 5 V for LTE/5G modem baseband processor in compact M.2 modules powered from 12-V system rail. IC Role / Device Role / Timing Role: Compact, high-efficiency POL converter with EN-controlled sequencing synchronized to host processor boot sequence. Use Value: 2.00 mm × 2.00 mm footprint saves >30% board area vs. VSSOP alternatives; soft-start slope (25 mV/µs) prevents inrush-triggered upstream fuse trips. |
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 3.3 V output; identical pinout, package, and feature set except output voltage. | Used where system requires 3.3 V logic rail instead of 5 V; no change to PCB layout or external components required. | Select when target load operates at 3.3 V and shares same thermal/mechanical constraints as TPS62162DSGR. |
| TPS62160DSGR | Adjustable output (0.9–6 V) via external resistor divider; FB pin functional instead of internally tied. | Supports multiple output voltages on same platform; requires two additional resistors and layout space for feedback network. | Choose for design flexibility across variants or when future voltage scaling (e.g., 4.5 V, 5.5 V) is anticipated. |
Compared with TPS62161DSGR and TPS62160DSGR, the TPS62162DSGR offers optimal integration for 5 V-only systems - eliminating feedback components while retaining identical thermal performance, protection features, and 2.25 MHz operation - making it the most cost- and area-efficient choice for dedicated 5 V POL conversion.
Availability
TPS62162DSGR is available at Aetrix Electronics and suitable for mobile PCs, digital cameras, industrial sensor nodes, and modem baseband power supplies requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62162DSGR 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-density, battery-sensitive applications - delivering 1-A output in sub-4 mm² packages with ultra-low IQ, fast transient response, and seamless light-load efficiency - targeting portable computing, imaging, and industrial edge devices.
FAQ
What is the output voltage of the TPS62162DSGR?
The TPS62162DSGR delivers a fixed 5.0 V output voltage. This is factory-trimmed and does not require external feedback resistors. The device uses an internal resistive divider connected to the FB pin, which is recommended to be tied to AGND for optimal thermal performance per the datasheet. Output accuracy is ±3% under PWM mode and ±3.5% in power save mode.
Does the TPS62162DSGR support 100% duty cycle operation?
Yes, the TPS62162DSGR supports 100% duty cycle operation to maintain regulation when input voltage approaches the 5.0 V output - critical for extending runtime in Li-ion battery applications. In this mode, the high-side MOSFET remains continuously on and the low-side FET is disabled. Minimum input voltage for regulation depends on load current and RDS(on), calculated as VIN(min) = VOUT + IOUT × (RDS(on)_HS + RL).
What package type is used for the TPS62162DSGR?
The TPS62162DSGR is packaged in an 8-pin WSON (DSG) package measuring 2.00 mm × 2.00 mm with an exposed thermal pad. This package offers superior thermal resistance (RθJA = 61.8°C/W) compared to the VSSOP variant and is optimized for high-power-density designs. The thermal pad must be soldered to AGND for proper heat dissipation and mechanical reliability.
How does the power good (PG) pin function on the TPS62162DSGR?
The PG pin on the TPS62162DSGR is an open-drain output that signals when the output voltage reaches 92–98% of nominal 5.0 V. It requires an external pull-up resistor (to ≤7 V) and can sink up to 2 mA. During shutdown, UVLO, or thermal shutdown, PG goes high-impedance - enabling use in multi-rail sequencing. If unused, TI recommends connecting PG to GND rather than leaving it floating.
What is the typical quiescent current of the TPS62162DSGR?
The TPS62162DSGR draws a typical quiescent current of 17 µA in power save mode at light loads, with a maximum of 30 µA over temperature. In shutdown mode (EN = low), current drops to ≤2.5 µA. This ultra-low IQ enables >85% efficiency at 1 mA load, making the TPS62162DSGR well-suited for always-on subsystems in battery-powered equipment.
TPS62162DSGR 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:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- 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)
TPS62162DSGR FAQ
1.How can I place an order for TPS62162DSGR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62162DSGR 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 TPS62162DSGR reliable?
The price and inventory of TPS62162DSGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62162DSGR is usually 5 days.
3.What payment methods are accepted for TPS62162DSGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62162DSGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62162DSGR?
TPS62162DSGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62162DSGR 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 TPS62162DSGR?
For technical support, including TPS62162DSGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62162DSGR requirements.
6.How does Aetrix verify that TPS62162DSGR is sourced from the original manufacturer or authorized distributors?
All TPS62162DSGR 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 TPS62162DSGR meets industry standards.
7.What is the process for return or replacement of TPS62162DSGR?
All TPS62162DSGR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62162DSGR, 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 TPS62162DSGR part is unused and in its original packaging.
Return procedure for TPS62162DSGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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