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Texas Instruments TPS61093QDSKRQ1
- Part No.:
- TPS61093QDSKRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
TPS61093QDSKRQ1.pdf
- Description:
- IC REG BOOST ADJ 1.6A 10SON
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
TPS61093QDSKRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified 1.2-MHz fixed-frequency boost converter with integrated 20-V/1.1-A power switch, input/output isolation FET, and power diode. It operates from 1.6 V to 6 V input, delivers up to 17 V at the VO pin (15 V typical at 50 mA), and provides programmable soft start, OVP (18–19 V), and overload protection (200–300 mA). It targets automotive OLED power supplies and isolated 3.3 V/5 V-to-12 V boost applications.
For engineers reviewing the TPS61093QDSKRQ1 datasheet, TPS61093QDSKRQ1 pinout, TPS61093QDSKRQ1 application, or TPS61093QDSKRQ1 equivalent, key selection considerations include its integrated isolation FET for shutdown leakage control, 0.5-V FB reference accuracy (±1%), 1.2-MHz switching frequency enabling compact magnetics, and thermal pad-equipped 2.5 mm × 2.5 mm SON-10 package optimized for automotive thermal reliability.
Technical Context
The TPS61093QDSKRQ1 employs current-mode PWM control with built-in slope compensation to prevent subharmonic oscillation across load and line variations. Its functional block integrates a precharge circuit for CP1/CP2 flying capacitor, dual gate drivers for main switch and isolation FET, and an error amplifier with internal compensation tuned for 2.2–10 μH inductors and 1–10 μF output capacitors.
It supports three operational modes: continuous conduction mode (CCM) above half-inductor ripple current, discontinuous conduction mode (DCM) at light loads, and pulse-skipping mode below ~1 mA to maintain regulation while minimizing quiescent current. Shutdown discharges the OUT pin via internal diodes to <3.3 V within milliseconds, then slowly to zero via leakage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.6 V to 6 V - enables direct operation from single Li-ion, two alkaline cells, or regulated 3.3 V/5 V rails. |
| Output Voltage Range (VO) | Up to 17 V - set via external resistor divider on FB pin; 0.5-V reference enables precise 15 V output at 50 mA with 88% efficiency. |
| Switching Frequency | 1.2 MHz (typ) - allows use of small 2.2–10 μH inductors and reduces EMI fundamental frequency. |
| Internal Switch RDS(on) | 0.25 Ω (typ) at VIN = 3 V - limits conduction loss in high-current boost path; supports 1.1-A peak current limit. |
| Isolation FET RDS(on) | 2.5 Ω (typ) at VO = 5 V - provides input-output disconnect during shutdown and overload, reducing leakage to <1 μA. |
| FB Reference Voltage | 0.49–0.51 V - ±2% tolerance enables accurate output regulation; low 100-nA bias current minimizes divider error. |
| Quiescent Current | 0.9–1.5 mA - enables efficient operation in always-on automotive subsystems without excessive standby drain. |
Pinout & Package
TPS61093QDSKRQ1 is housed in a thermally enhanced 2.5 mm × 2.5 mm SON-10 package with exposed thermal pad (pin 0) soldered to PCB ground plane for optimal junction-to-board thermal resistance (RθJB = 23.4 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 2) | Power input supply | Accepts 1.6–6 V input; connects to input capacitor (≥4.7 μF) and inductor; UVLO triggers at 1.55 V falling. |
| GND (Pin 1) | Ground reference | Primary return path for power and signal; must be low-impedance connection to thermal pad and system ground. |
| CP1, CP2 (Pins 3, 4) | Flying capacitor terminals | Drive internal charge pump for gate drive; require 10 nF ceramic capacitor between them per datasheet layout. |
| EN (Pin 5) | Enable control input | Active-high logic; 1-ms low pulse initiates shutdown consuming <5 μA; internal 400–1600 kΩ pull-down ensures default-off. |
| SS (Pin 6) | Soft-start timing node | Charged by 5-μA internal current; RC network sets output voltage ramp time; discharge via R3 prevents premature startup. |
| FB (Pin 7) | Voltage feedback input | Compares divided output voltage against 0.5-V internal reference; determines duty cycle; 100-nA bias current affects divider design. |
| SW (Pin 9) | Switching node | Connects to inductor and internal N-channel switch; requires minimal trace area and tight loop to reduce EMI and ringing. |
| VO (Pin 10) | Main output voltage node | Regulated output at up to 17 V; connects to output capacitor (1–10 μF); OVP threshold is 18–19 V with 0.6-V hysteresis. |
| OUT (Pin 8) | Isolated output terminal | Connected to load through internal isolation FET; provides input-output disconnect during shutdown and overload events. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated isolation FET | 2.5 Ω RDS(on) disconnects OUT from VIN during shutdown and overload, limiting leakage to <1 μA and protecting upstream supply. |
| Programmable soft start | RC network on SS pin controls output voltage ramp rate; prevents inrush current into large output capacitors during power-up. |
| Load discharge path | Internal diode network discharges OUT to <3.3 V within ms of shutdown, then slowly to zero-prevents hazardous residual voltage. |
| Overvoltage protection | 18–19 V OVP on VO pin shuts down PWM and opens isolation FET; resumes only after VO drops 0.6 V below threshold. |
| AEC-Q100 Grade 1 qualification | Rated for –40°C to +125°C junction temperature; includes HBM ±2000 V ESD, thermal shutdown at 150°C with 15°C hysteresis. |
Applications
| OLED Power Supply | Automotive Instrument Cluster Boost |
|---|---|
|
Use Scenario: Powering monochrome or color OLED displays in automotive dashboards requiring stable 12–15 V from 3.3 V or 5 V domain supplies. IC Role / Device Role / Timing Role: Primary boost regulator with integrated isolation FET ensuring display remains dark and safe during MCU sleep or ignition-off states. Use Value: Eliminates need for external load switch; achieves <1 μA shutdown leakage and fast output discharge, meeting automotive ASIL-B functional safety expectations. |
Use Scenario: Generating 12 V rail for analog sensors, CAN transceivers, or backlight drivers in instrument clusters powered by 5 V microcontroller domain. IC Role / Device Role / Timing Role: High-reliability DC-DC converter with OVP and thermal shutdown protecting downstream analog circuitry from overvoltage faults. Use Value: 88% efficiency at 15 V/50 mA reduces thermal load in confined cluster housing; 1.2-MHz operation enables compact 4.7 μH inductor placement. |
| Isolated 3.3 V-to-12 V Converter | Li-ion Powered Portable Medical Device |
|
Use Scenario: Providing galvanically isolated 12 V output from 3.3 V system rail in industrial I/O modules where input and output grounds are separated. IC Role / Device Role / Timing Role: Input-output isolation via internal FET replaces discrete MOSFET + driver, simplifying BOM and layout while maintaining <3.3 V post-shutdown voltage. Use Value: Reduces component count by 4+ parts; eliminates risk of shoot-through or improper sequencing in discrete isolation solutions. |
Use Scenario: Boosting voltage from single-cell Li-ion (3.0–4.2 V) to 15 V for precision analog front-end or wireless transceiver in portable diagnostic equipment. IC Role / Device Role / Timing Role: Efficient, low-noise power source with programmable soft start preventing brownout during battery cold-start conditions. Use Value: 0.9–1.5 mA quiescent current extends battery life; 1.6 V minimum input enables operation until battery reaches end-of-discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS610981DSER | No integrated isolation FET; lacks load discharge path and OUT pin; uses separate EN/SS pins but no CP1/CP2 charge pump. | Suitable for non-isolated, cost-sensitive consumer applications; cannot meet automotive shutdown leakage requirements. | Select TPS61093QDSKRQ1 when input-output isolation, fast output discharge, or AEC-Q100 compliance are mandatory. |
| LM3478QMMX/NOPB | External MOSFET controller (no integrated switch); requires external diode, gate driver, and compensation components; no isolation FET or soft start pin. | Offers higher output voltage flexibility (up to 60 V) and adjustable frequency, but increases design complexity and board area. | Choose TPS61093QDSKRQ1 for space-constrained automotive designs needing full integration, reduced BOM, and guaranteed AEC-Q100 performance. |
Compared with TPS610981DSER and LM3478QMMX/NOPB, the TPS61093QDSKRQ1 uniquely combines AEC-Q100 qualification, integrated isolation FET, and programmable soft start in a 2.5 mm × 2.5 mm SON package-enabling simpler, safer, and more compact automotive boost designs without sacrificing reliability.
Availability
TPS61093QDSKRQ1 is available at Aetrix Electronics and suitable for automotive instrument clusters, OLED display power supplies, isolated sensor interface rails, and portable medical device boost converters requiring stable component supply and long-term automotive-grade availability.
Supply support for TPS61093QDSKRQ1 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 ICs, with decades of experience in power management innovation and automotive qualification.
The TPS61093QDSKRQ1 belongs to TI's automotive-qualified boost converter product line, designed specifically for high-integration, high-reliability power conversion in safety-critical vehicle subsystems operating from 1.6 V to 6 V inputs.
FAQ
What is the maximum output voltage supported by the TPS61093QDSKRQ1?
The TPS61093QDSKRQ1 supports a maximum output voltage of 17 V at the VO pin, as specified in the Recommended Operating Conditions table. This is enforced by internal overvoltage protection (OVP) that disables the PWM switch when VO exceeds 18–19 V. The actual regulated output is set externally via the FB pin resistor divider, with common configurations delivering 12 V or 15 V. Output voltage stability is maintained across temperature and load due to the 0.49–0.51 V FB reference accuracy.
How does the isolation FET in the TPS61093QDSKRQ1 improve system safety?
The isolation FET in the TPS61093QDSKRQ1 disconnects the OUT pin from VIN during shutdown and overload conditions, reducing output leakage current to <1 μA and preventing hazardous residual voltage. During shutdown, internal diodes discharge the output to <3.3 V within milliseconds, then slowly to zero. This behavior meets automotive functional safety expectations for display and sensor power domains, eliminating the need for external load switches or bleed resistors in critical systems.
Can the TPS61093QDSKRQ1 operate from a single alkaline cell?
Yes, the TPS61093QDSKRQ1 can operate from a single alkaline cell, as its input voltage range starts at 1.6 V-well below the nominal 1.5 V and usable down to ~0.9 V under load. The device includes undervoltage lockout (UVLO) with a 1.55 V threshold and 50 mV hysteresis, ensuring reliable startup and shutdown across the full alkaline discharge curve. This capability enables use in space-constrained, battery-powered automotive accessories without requiring voltage pre-regulation.
What is the purpose of the CP1 and CP2 pins on the TPS61093QDSKRQ1?
The CP1 and CP2 pins on the TPS61093QDSKRQ1 form the terminals for an external flying capacitor (typically 10 nF) used by the internal charge pump to generate gate drive voltage for both the main power switch and the isolation FET. This eliminates the need for external high-voltage bias supplies and enables full 20-V switch operation from low input voltages. Proper layout-short traces, low-ESR capacitor, and solid ground return-is essential to ensure stable gate drive and minimize switching losses.
Does the TPS61093QDSKRQ1 support pulse-skipping mode at light loads?
Yes, the TPS61093QDSKRQ1 automatically enters pulse-skipping mode at very light loads (below ~1 mA), as described in Section 8.4. In this mode, the IC skips entire switching cycles to maintain output regulation while minimizing quiescent current and improving light-load efficiency. This behavior is distinct from DCM and complements the device's ability to deliver >85% efficiency across 1 mA to 50 mA loads, making it suitable for always-on automotive subsystems with variable duty cycles.
TPS61093QDSKRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.6V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.6V
- Voltage - Output (Max):
- 17V
- Current - Output:
- 1.6A (Switch)
- Frequency - Switching:
- 1.2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-SON (2.5x2.5)
TPS61093QDSKRQ1 FAQ
1.How can I place an order for TPS61093QDSKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61093QDSKRQ1 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 TPS61093QDSKRQ1 reliable?
The price and inventory of TPS61093QDSKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61093QDSKRQ1 is usually 5 days.
3.What payment methods are accepted for TPS61093QDSKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61093QDSKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61093QDSKRQ1?
TPS61093QDSKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61093QDSKRQ1 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 TPS61093QDSKRQ1?
For technical support, including TPS61093QDSKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61093QDSKRQ1 requirements.
6.How does Aetrix verify that TPS61093QDSKRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS61093QDSKRQ1 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 TPS61093QDSKRQ1 meets industry standards.
7.What is the process for return or replacement of TPS61093QDSKRQ1?
All TPS61093QDSKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS61093QDSKRQ1, 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 TPS61093QDSKRQ1 part is unused and in its original packaging.
Return procedure for TPS61093QDSKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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