My Inquiry
My Account
Texas Instruments TPS61175QPWPRQ1
- Part No.:
- TPS61175QPWPRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 14-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS61175QPWPRQ1.pdf
- Description:
- IC REG BST FLYBACK ADJ 14HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,870
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS61175QPWPRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified 3-A, 40-V synchronous boost converter IC with programmable switching frequency (200 kHz–2.2 MHz), soft-start control, and current-mode PWM regulation. It supports boost, SEPIC, and flyback topologies for automotive power conversion from 2.9 V to 18 V input to up to 38 V output, delivering up to 93% efficiency in high-voltage DC-DC applications such as ADAS camera power rails and infotainment display supplies.
For engineers reviewing the TPS61175QPWPRQ1 datasheet, TPS61175QPWPRQ1 pinout, TPS61175QPWPRQ1 application, or TPS61175QPWPRQ1 equivalent, key selection criteria include its integrated 3-A/40-V N-channel MOSFET, programmable soft-start timing via external capacitor, cycle-by-cycle overcurrent protection, thermal shutdown at 160°C, and HTSSOP-14 PowerPAD™ package optimized for automotive thermal reliability.
Technical Context
The TPS61175QPWPRQ1 implements current-mode PWM control with slope compensation to prevent subharmonic oscillation above 50% duty cycle. Its error amplifier transconductance (240–440 μmho) and COMP pin interface enable stable loop compensation across wide load and temperature ranges (–40°C to 125°C).
Switching frequency is set either by an external resistor on FREQ (200 kHz–2.2 MHz) or synchronized to an external clock on SYNC (±20% tolerance). Soft-start is controlled by a 6-μA bias current charging an external SS capacitor, clamping COMP until 1.8 V is reached. Pulse-skipping mode activates under light-load discontinuous conduction to maintain regulation without minimum load requirement-except when internal oscillator exceeds 1.2 MHz without external sync.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.9 V to 18 V - supports multi-cell battery inputs and regulated 5/12-V rails in automotive systems |
| Output Voltage Range | Up to 38 V - enables direct powering of LED strings, sensors, and high-side drivers without secondary stages |
| Switch Current Limit | 3 A typical, 3.8 A max - defines maximum peak inductor current and constrains achievable output power at low VIN |
| Switching Frequency | 200 kHz to 2.2 MHz - adjustable via external resistor or SYNC clock; higher frequencies reduce inductor size but require careful layout |
| Efficiency | Up to 93% - achieved at mid-load with optimal inductor (10–22 μH) and Schottky diode selection |
| Quiescent Current | 3.5 mA - enables low-power operation during active regulation; drops to 1.5 μA in shutdown |
| UVLO Threshold | 2.5 V (typ), 130 mV hysteresis - prevents erratic startup during cold-crank or battery dip conditions |
Pinout & Package
TPS61175QPWPRQ1 is housed in a 14-pin HTSSOP package (5.00 mm × 4.40 mm) with exposed PowerPAD™ thermal pad soldered to AGND for enhanced thermal dissipation. The package supports automotive-grade board-level reliability and meets JEDEC moisture sensitivity level MSL-2a.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply | Primary power input (2.9–18 V); decoupled with ≥4.7 μF ceramic capacitor near pin |
| EN | Enable control | Logic-enable input; device shuts down if held <0.4 V for >10 ms; internal 800-kΩ pull-down |
| SS | Soft-start timing | 6-μA current source charges external capacitor; sets ramp time to limit inrush and overshoot |
| FREQ | Frequency programming | Resistor-connected node setting oscillator frequency; must not be left floating |
| SYNC | External clock input | Accepts 200 kHz–2.2 MHz logic-level clock; requires FREQ resistor even when used |
| FB | Feedback sensing | Monitors output via resistor divider; regulates to 1.229 V reference with ±25 mV tolerance |
| COMP | Error amplifier output | Transconductance amplifier output; RC network here sets loop stability and transient response |
| SW | Power switch node | Drives external inductor; connects to drain of internal 40-V/3-A N-FET; high dv/dt node requiring tight layout |
| PGND | Power ground | Three dedicated pins (12,13,14) for low-impedance return path of switch current; tied to thermal pad |
| AGND | Analog ground | Signal reference for FB, COMP, EN, SS; separated from PGND to minimize noise coupling |
| NC | No-connect | Reserved pin; must be connected to AGND to avoid floating node and EMI risk |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C junction operation in automotive powertrain and body electronics |
| Functional safety documentation support | Includes FIT rate data, failure mode analysis, and diagnostic coverage guidance for ISO 26262 ASIL-B systems |
| Synchronous switching frequency control | Enables EMI reduction via spread-spectrum clock synchronization with system MCU or other converters |
| Programmable soft-start | Eliminates output overshoot and inrush stress on input capacitors and downstream regulators |
| Thermal shutdown with hysteresis | Shuts down at 160°C junction; restarts only after 15°C cooldown, preventing thermal cycling damage |
| Pulse-skipping light-load mode | Maintains regulation at microamp loads without minimum load resistors, reducing standby power loss |
Applications
| Automotive Camera Power Supply | Infotainment Display Backlight |
|---|---|
Use Scenario: Powering 12-V or 24-V imaging modules in ADAS forward-facing cameras with strict EMC and thermal constraints. IC Role / Device Role / Timing Role: Boost converter generating stable 12-V rail from 5-V domain; operates at 1.2 MHz to avoid AM radio band interference. Use Value: Integrated 3-A switch eliminates external MOSFET, while soft-start prevents image sensor reset glitches during vehicle ignition. | Use Scenario: Driving LED backlight strings in center-stack displays requiring 24–35 V from 12-V battery. IC Role / Device Role / Timing Role: High-efficiency boost regulator with programmable frequency; configured in CCM for low ripple and high PSRR. Use Value: 93% peak efficiency reduces heat buildup behind glass display; thermal shutdown protects against enclosure overheating. |
| Telematics LTE Modem Power | Body Control Module (BCM) Auxiliary Rail |
Use Scenario: Providing isolated 5-V/3.3-V auxiliary rails for LTE modems in telematics control units with variable battery voltage. IC Role / Device Role / Timing Role: SEPIC-configured regulator maintaining regulation during cold-crank (4.5 V) and load-dump (27 V) transients. Use Value: Wide 2.9–18 V input range and UVLO hysteresis ensure uninterrupted modem operation across full automotive voltage envelope. | Use Scenario: Generating 5-V rail for CAN transceivers, LIN controllers, and door module sensors in BCMs. IC Role / Device Role / Timing Role: Compact boost converter replacing discrete solutions; uses HTSSOP PowerPAD™ for PCB space savings and thermal margin. Use Value: 14-pin HTSSOP footprint allows integration into dense BCM layouts; AEC-Q100 qualification ensures 15-year field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5122MTX/NOPB | Higher 65-V switch rating, wider 3–75-V input, but no integrated soft-start capacitor control; requires external soft-start circuit | Better suited for industrial 48-V systems; less ideal for automotive due to lack of AEC-Q100 qualification | Select when output >38 V or input >18 V is required; verify thermal design without PowerPAD™ |
| MAX20414ATPA/VY+ | 42-V switch, AEC-Q100 Grade 1, but fixed 2.2-MHz frequency and no SYNC pin; lower 2.5-A current limit | Optimized for compact camera modules where size and EMI matter more than frequency flexibility | Choose for space-constrained designs needing guaranteed 2.2-MHz operation without external resistor tuning |
Compared with LM5122MTX/NOPB and MAX20414ATPA/VY+, the TPS61175QPWPRQ1 uniquely combines AEC-Q100 Grade 1, programmable frequency with SYNC capability, and integrated soft-start control-making it the preferred choice for automotive systems requiring flexible, thermally robust, and functionally safe boost conversion.
Availability
TPS61175QPWPRQ1 is available at Aetrix Electronics and suitable for automotive ADAS camera power supplies, infotainment display backlights, and telematics modem auxiliary rails requiring stable component supply across extended temperature and long lifecycle requirements.
Supply support for TPS61175QPWPRQ1 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 automotive electronics with broad manufacturing scale and automotive qualification expertise.
The TPS61175QPWPRQ1 belongs to TI's automotive-grade power management portfolio, designed specifically for high-reliability DC-DC conversion in safety-critical vehicle subsystems including driver assistance, infotainment, and connectivity modules.
FAQ
What is the maximum output voltage supported by the TPS61175QPWPRQ1?
The TPS61175QPWPRQ1 supports an output voltage up to 38 V, limited by its 40-V internal N-channel MOSFET breakdown rating and current-mode control architecture. This enables direct powering of high-voltage loads like LED strings and industrial sensors without cascaded conversion stages. The feedback reference is fixed at 1.229 V, so output voltage is set externally via resistor divider ratio. Operation beyond 38 V risks exceeding absolute maximum ratings and is not supported.
Does the TPS61175QPWPRQ1 require an external Schottky diode in boost configuration?
Yes, the TPS61175QPWPRQ1 requires an external Schottky diode in standard boost topology to provide the freewheeling path during the switch off-time. The IC integrates only the low-side N-FET switch; the diode must be rated for ≥40 V reverse voltage and ≥3-A average current, with low forward voltage (e.g., 0.4 V) to maximize efficiency. In SEPIC or flyback configurations, the diode placement and requirements differ per topology.
How is soft-start timing determined for the TPS61175QPWPRQ1?
Soft-start timing for the TPS61175QPWPRQ1 is set by an external capacitor on the SS pin, charged by a 6-μA internal current source. Time to reach 1.8 V (end of soft-start) is tSS ≈ (1.8 V × CSS) / 6 μA. For example, a 47-nF capacitor yields ~14 ms soft-start. This timing controls inrush current ramp rate and prevents output overshoot. During shutdown, the SS capacitor discharges through a 5-kΩ internal resistor, resetting for next startup.
Can the TPS61175QPWPRQ1 operate in discontinuous conduction mode (DCM)?
Yes, the TPS61175QPWPRQ1 automatically enters discontinuous conduction mode (DCM) under light-load conditions, activating pulse-skipping to maintain output regulation without requiring a minimum load. DCM operation reduces switching losses and improves light-load efficiency. However, inductor selection must stay within 4.7–47 μH to ensure adequate slope compensation; values below 4.7 μH risk loop instability due to insufficient compensation in DCM.
What thermal management considerations apply to the TPS61175QPWPRQ1?
The TPS61175QPWPRQ1 uses an HTSSOP package with PowerPAD™ thermal pad that must be soldered to AGND plane and connected via ≥4 thermal vias to inner ground layers. Its junction-to-board thermal resistance is 30.1°C/W; for 3-A continuous operation at 125°C ambient, PCB copper area and airflow must keep power dissipation ≤1.6 W. Thermal shutdown triggers at 160°C with 15°C hysteresis-designs must ensure sufficient margin between max load power and this threshold under worst-case conditions.
TPS61175QPWPRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up, Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Boost, Flyback, SEPIC
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.9V
- Voltage - Input (Max):
- 18V
- Voltage - Output (Min/Fixed):
- 2.9V
- Voltage - Output (Max):
- 38V
- Current - Output:
- 3A (Switch)
- Frequency - Switching:
- 200kHz ~ 2.2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-HTSSOP
TPS61175QPWPRQ1 FAQ
1.How can I place an order for TPS61175QPWPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61175QPWPRQ1 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 TPS61175QPWPRQ1 reliable?
The price and inventory of TPS61175QPWPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61175QPWPRQ1 is usually 5 days.
3.What payment methods are accepted for TPS61175QPWPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61175QPWPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61175QPWPRQ1?
TPS61175QPWPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61175QPWPRQ1 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 TPS61175QPWPRQ1?
For technical support, including TPS61175QPWPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61175QPWPRQ1 requirements.
6.How does Aetrix verify that TPS61175QPWPRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS61175QPWPRQ1 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 TPS61175QPWPRQ1 meets industry standards.
7.What is the process for return or replacement of TPS61175QPWPRQ1?
All TPS61175QPWPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS61175QPWPRQ1, 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 TPS61175QPWPRQ1 part is unused and in its original packaging.
Return procedure for TPS61175QPWPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS61175QPWPRQ1 Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
