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Texas Instruments TPS62175DQCR
- Part No.:
- TPS62175DQCR
- Manufacturer:
- Texas Instruments
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
TPS62175DQCR.pdf
- Description:
- IC REG BUCK BST ADJ 500MA 10WSON
- Quantity:
- Payment:
- Shipping:
Inventory:29,276
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Product details
Overview
TPS62175DQCR from Texas Instruments is an adjustable-output, 0.5-A synchronous step-down DC/DC converter with DCS-Control™ topology, operating from 4.75 V to 28 V input and delivering regulated output from 1 V to 6 V. It features 1 MHz typical switching frequency, 4.8 µA sleep-mode quiescent current, active output discharge, and power-good signaling - deployed in ultra-low-power microcontroller supply rails and industrial sensor nodes.
For engineers reviewing the TPS62175DQCR datasheet, TPS62175DQCR pinout, TPS62175DQCR application, or TPS62175DQCR equivalent, key selection considerations include its adjustable feedback architecture (FB pin), 10-pin WSON package with thermal pad, seamless PWM-to-power-save mode transition, and support for 100% duty cycle operation near VIN ≈ VOUT.
Technical Context
The TPS62175DQCR implements DCS-Control™ - a hybrid regulation topology combining voltage-mode control with direct output-voltage sensing via fast comparator feedback, enabling immediate transient response while maintaining stable DC regulation. Its internal error amplifier and compensation network eliminate need for external compensation components.
It supports three functional modes: PWM mode (fixed ~1 MHz frequency, continuous conduction), power-save mode (frequency scaling at light loads), and sleep mode (4.8 µA IQ, fixed on-time control). Sleep mode is enabled via dedicated SLEEP pin and maintains regulation up to 15 mA output, with automatic exit if load exceeds capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.75 V to 28 V - supports multi-cell Li-ion, 12 V/24 V industrial rails, and high-intermediate bus supplies |
| Output Voltage Range | 1 V to 6 V (adjustable via FB resistive divider) - enables flexible rail generation across logic, analog, and RF subsystems |
| Max Output Current | 500 mA - sufficient for low-power microcontrollers, sensors, and communication peripherals |
| Switching Frequency | Typically 1 MHz - allows compact 10 µH inductor and 22 µF ceramic output capacitor solution |
| Sleep Mode IQ | 4.8 µA (typical) - extends battery life in hibernation states without compromising wake-up readiness |
| Power Good Output | Open-drain PG with 93–99% rising threshold - enables reliable power sequencing and system reset coordination |
| Active Output Discharge | 175 Ω (typical) discharge path on VOS pin - ensures rapid, controlled VOUT ramp-down during shutdown |
Pinout & Package
TPS62175DQCR is housed in a thermally enhanced 2.0 mm × 3.0 mm, 10-pin WSON package with exposed thermal pad soldered to AGND/PGND for optimal power dissipation and EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND (Pin 1) | Power ground | High-current return path for switch node and internal FETs; must be low-impedance connection to PCB ground plane |
| VIN (Pin 2) | Input supply | Primary power input (4.75–28 V); requires local 2.2 µF ceramic decoupling close to pin |
| EN (Pin 3) | Enable control | Active-high logic input; internal 400 kΩ pulldown ensures safe default-off state when floating |
| NC (Pin 4) | No connect | Internally unused; TI recommends connecting to AGND for thermal and noise mitigation |
| FB (Pin 5) | Feedback input | Regulates output by sensing 0.8 V reference; connects to resistive divider for adjustable VOUT |
| AGND (Pin 6) | Analog ground | Reference ground for control circuitry and FB/VOS; separate from PGND but tied at single point |
| PG (Pin 7) | Power good output | Open-drain status signal requiring external pullup; asserts high when VOUT is within ±2% of target |
| SLEEP (Pin 8) | Sleep mode control | Active-low input; pulls device into ultra-low-IQ sleep mode; internal pulldown prevents unintended entry |
| SW (Pin 9) | Switch node | Connection to internal HS/LG FETs; drives external 10 µH inductor; critical for layout and EMI control |
| VOS (Pin 10) | Voltage sense & discharge | Direct connection to output capacitor; provides loop sensing and activates 175 Ω discharge path during shutdown |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Combines fast transient response (via direct output sensing) with stable DC regulation - eliminates need for external compensation |
| 100% duty cycle operation | Enables regulation down to VIN − VOUT < 100 mV - maximizes battery runtime in portable systems |
| Seamless power-save transition | No output voltage glitch or audible noise when shifting between PWM and power-save modes - critical for noise-sensitive applications |
| Internal current limit | 525 mA (startup) / 1 A (normal) - protects against overload while supporting full 500 mA output capability |
| Thermal shutdown with hysteresis | 150°C trip with 20°C hysteresis - prevents thermal runaway and enables autonomous recovery without host intervention |
Applications
| Industrial Sensor Node | Ultra-Low-Power MCU Supply |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data over LoRaWAN every 10 minutes. IC Role / Device Role / Timing Role: Primary 3.3 V supply regulator with dynamic sleep/wake cycling synchronized to MCU activity. Use Value: 4.8 µA sleep IQ minimizes quiescent drain; active discharge prevents residual voltage from interfering with next wake cycle. |
Use Scenario: ARM Cortex-M0+ microcontroller entering deep-sleep mode for >99% of operational time. IC Role / Device Role / Timing Role: System-level power manager providing regulated VDD and coordinating power sequencing via PG signal. Use Value: PG output triggers MCU reset upon valid VOUT; SLEEP pin enables sub-µA system standby without external LDO. |
| Portable Medical Monitor | 12 V Point-of-Load Conversion |
Use Scenario: Handheld pulse oximeter powered by two Li-ion cells (6–8.4 V) requiring clean 1.8 V and 3.3 V rails. IC Role / Device Role / Timing Role: Adjustable buck converter generating 1.8 V from intermediate rail; paired with fixed 3.3 V TPS62177. Use Value: 1 V–6 V adjustability supports multiple core/peripheral voltages; low output ripple avoids interference with analog front-end. |
Use Scenario: Industrial PLC I/O module deriving 5 V from 12 V backplane supply. IC Role / Device Role / Timing Role: High-efficiency PoL regulator replacing linear regulator to reduce heat and improve system efficiency. Use Value: 90%+ efficiency at 500 mA eliminates heatsink requirement; 2×3 mm WSON footprint saves board space vs. legacy solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62177DQCR | Fixed 3.3 V output; no FB pin required; same package, pinout, and electrical specs except output programming | Eliminates external resistor divider; optimized for single-rail 3.3 V systems without voltage flexibility | Select when output voltage is fixed and board space/layout simplicity is prioritized over adjustability |
| TPS62825ADSGR | Higher 1.2 A rating; 2.5 V–6 V input; 0.6 V–5.5 V output; 2.0 µA IQ in shutdown; smaller 1.5 mm × 2.0 mm DSG package | Better suited for higher-current or lower-input-voltage applications; lacks sleep mode and active discharge | Choose for newer designs needing higher current or smaller footprint where sleep mode is not required |
Compared with TPS62177DQCR, the TPS62175DQCR offers design flexibility through adjustable output but requires two external resistors; compared with TPS62825ADSGR, it delivers proven sleep-mode functionality and active discharge at the cost of lower current rating and larger package.
Availability
TPS62175DQCR is available at Aetrix Electronics and suitable for industrial sensor nodes, ultra-low-power microcontroller supply rails, portable medical monitors, and 12 V point-of-load conversion requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for TPS62175DQCR 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 company specializing in analog, embedded processing, and connectivity technologies, with leadership in power management ICs for industrial, automotive, and consumer markets.
The TPS6217x product line was designed specifically for high-efficiency, low-quiescent-current DC/DC conversion in battery-powered and energy-conscious systems - emphasizing seamless light-load efficiency, small solution size, and robust protection features.
FAQ
What is the function of the VOS pin on the TPS62175DQCR?
The VOS pin on the TPS62175DQCR serves dual functions: it provides direct output voltage sensing for the control loop and activates the internal 175 Ω active discharge path during shutdown or fault conditions. When EN is pulled low, the VOS pin discharges the output capacitor to prevent residual voltage from affecting downstream circuitry - a critical feature for systems requiring clean power cycling. This behavior is confirmed in the Electrical Characteristics table and Functional Block Diagram of the TPS62175DQCR datasheet.
Can the TPS62175DQCR operate with an input voltage below 4.75 V?
The TPS62175DQCR has a specified minimum input voltage of 4.75 V under recommended operating conditions. While undervoltage lockout (UVLO) releases at ~2.9 V falling threshold, operation below 4.75 V is outside guaranteed specifications - parameters like output accuracy, current limit, and efficiency are not characterized. The device may sustain regulation briefly near 100% duty cycle, but TI explicitly defines 4.75 V as the lower bound for full performance compliance in the TPS62175DQCR datasheet.
How does the TPS62175DQCR enter and exit sleep mode?
The TPS62175DQCR enters sleep mode when the SLEEP pin is driven low (≤0.3 V), reducing quiescent current to 4.8 µA and switching to fixed-on-time regulation. It exits sleep mode when SLEEP is driven high (≥0.9 V), resuming full PWM operation after soft-start. An internal pulldown resistor ensures safe default-low state if the pin floats. Sleep mode is disabled during soft-start and cannot be activated until regulation is achieved - all timing and threshold details are specified in Section 8.4.4 of the TPS62175DQCR datasheet.
Is the TPS62175DQCR pin-compatible with the TPS62177DQCR?
Yes, the TPS62175DQCR and TPS62177DQCR share identical 10-pin WSON (DQC) packages, pin assignments, and mechanical footprints - including VIN, EN, SLEEP, PGND, AGND, SW, PG, FB, VOS, and NC positions. The only functional difference is that TPS62175DQCR uses FB for adjustable output while TPS62177DQCR ties FB internally to AGND for fixed 3.3 V. This makes them drop-in replacements for layout, though external resistor networks differ.
What is the maximum output capacitance supported by the TPS62175DQCR?
The TPS62175DQCR supports output capacitors up to at least 44 µF in power-save mode, as validated in the Electrical Characteristics table for output voltage accuracy testing (COUT = 44 µF used for VOUT < 2.5 V cases). Larger values improve ripple suppression and light-load accuracy but do not violate stability - the DCS-Control™ architecture is inherently compatible with low-ESR ceramic capacitors ranging from 10 µF to 100 µF. TI's reference design uses 22 µF, and application notes confirm robustness with ≥44 µF.
TPS62175DQCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive or Negative
- Topology:
- Buck, Buck-Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.75V
- Voltage - Input (Max):
- 28V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 6V
- Current - Output:
- 500mA
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-WSON (3x2)
TPS62175DQCR FAQ
1.How can I place an order for TPS62175DQCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62175DQCR 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 TPS62175DQCR reliable?
The price and inventory of TPS62175DQCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62175DQCR is usually 5 days.
3.What payment methods are accepted for TPS62175DQCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62175DQCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62175DQCR?
TPS62175DQCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62175DQCR 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 TPS62175DQCR?
For technical support, including TPS62175DQCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62175DQCR requirements.
6.How does Aetrix verify that TPS62175DQCR is sourced from the original manufacturer or authorized distributors?
All TPS62175DQCR 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 TPS62175DQCR meets industry standards.
7.What is the process for return or replacement of TPS62175DQCR?
All TPS62175DQCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62175DQCR, 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 TPS62175DQCR part is unused and in its original packaging.
Return procedure for TPS62175DQCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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