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Texas Instruments TPS560430YDBVT
- Part No.:
- TPS560430YDBVT
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6
- Datasheet:
-
TPS560430YDBVT.pdf
- Description:
- IC REG BUCK PFM 600MA SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,683
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Product details
Overview
TPS560430YDBVT from Texas Instruments is a synchronous step-down DC-DC converter delivering up to 600 mA output current with 4 V to 36 V input range, 2.1 MHz fixed switching frequency, and ±1.5% reference voltage accuracy over –40°C to 125°C - used in industrial PLC power rails and automotive camera modules requiring compact, wide-VIN regulation.
For engineers reviewing the TPS560430YDBVT datasheet, TPS560430YDBVT pinout, TPS560430YDBVT application, or TPS560430YDBVT equivalent, key selection criteria include minimum on-time (60 ns), hiccup-mode short-circuit protection, internal compensation, PFM/FPWM mode behavior, and SOT-23-6 thermal performance (RθJA = 173°C/W).
Technical Context
The TPS560430YDBVT implements fixed-frequency peak-current mode control with internal slope compensation and voltage feedback loop. It supports both PFM (light-load efficiency) and FPWM (constant-frequency, low-ripple) operation modes - this specific Y-suffix variant operates at 2.1 MHz nominal frequency with PFM default behavior.
Its functional block includes integrated high-side (450 mΩ) and low-side (240 mΩ) MOSFETs, precision enable with 1.1–1.36 V rising threshold, and bootstrap-driven gate control via CB/SW pins. Protection logic enforces cycle-by-cycle current limiting, thermal shutdown at 170°C, and hiccup-mode recovery after 135 ms off-time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4 V to 36 V - supports direct connection to 12 V/24 V industrial buses and automotive battery rails without pre-regulation. |
| Output Current | 600 mA continuous - sufficient for powering microcontrollers, sensors, and interface ICs in space-constrained designs. |
| Switching Frequency | 2.1 MHz (±10%) - enables use of small external inductors (e.g., 1 µH) and ceramic output capacitors for minimal board area. |
| Reference Voltage | 1.000 V ±1.5% over –40°C to 125°C - ensures stable adjustable output (e.g., 3.3 V or 5 V) across temperature without calibration. |
| Minimum On-Time | 60 ns - allows high VIN-to-VOUT conversion ratios (e.g., 24 V → 3.3 V) without frequency foldback at light loads. |
| Quiescent Current | 80–120 µA in PFM mode - extends battery life in always-on monitoring systems with intermittent wake-up cycles. |
| Enable Threshold | 1.23 V typical rising threshold with 0.13 V hysteresis - enables precise system-level UVLO using external resistor divider. |
Pinout & Package
SOT-23-6 package (2.90 mm × 1.60 mm), thermally enhanced with exposed pad (not electrically connected), rated for 150°C max junction temperature and 173°C/W junction-to-ambient thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CB | Bootstrap capacitor node | Connects 100-nF X7R ceramic capacitor to SW; supplies gate drive voltage for internal high-side MOSFET. |
| GND | Power ground | Common return path for VIN bypass, output capacitor, and internal low-side FET source; requires shortest possible PCB trace to CIN. |
| FB | Voltage feedback input | Monitors resistive divider output; sets VOUT = 1.000 V × (1 + RFBT/RFBB); must not be shorted to GND during operation. |
| EN | Precision enable control | Active-high digital input; 1.23 V threshold enables system-level undervoltage lockout or sequencing without external logic. |
| VIN | Main power input | Supplies internal bias LDO and high-side switch; requires local 10-µF ceramic bypass capacitor directly between VIN and GND. |
| SW | Switching node | Drives external power inductor; connects internally to drain of low-side FET and source of high-side FET; carries high di/dt current. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated synchronous rectification | Eliminates need for external catch diode; reduces conduction losses and improves full-load efficiency by ~5–8% vs. asynchronous designs. |
| Internal compensation network | Enables stable operation with standard ceramic output capacitors (no ESR requirement); cuts BOM count and layout complexity. |
| Support for pre-biased output startup | Allows safe turn-on into powered systems (e.g., hot-swap backplanes) without output voltage overshoot or reverse current flow. |
| Hiccup-mode short-circuit protection | Shuts down for 135 ms upon sustained overcurrent, then retries - limits average power dissipation and prevents thermal runaway. |
| 98% maximum duty cycle | Permits operation down to ~1.02 V output at 36 V input (VOUT ≥ 1.0 V); extends usable input range in dropout-sensitive applications. |
Applications
| Industrial PLC I/O Module Power | Automotive Rear-View Camera Supply |
|---|---|
Use Scenario: Powers isolated analog front-end and CAN transceiver in modular PLC rack with 24 V field bus input. IC Role / Device Role / Timing Role: Primary point-of-load regulator converting 24 V bus to 5 V/3.3 V for sensor signal conditioning and communication ICs. Use Value: 2.1 MHz switching enables <12 mm² total solution size; PFM mode achieves >85% efficiency at 10 mA standby load. | Use Scenario: Supplies image sensor, ISP, and LVDS transmitter in rear-view camera module mounted behind vehicle bumper. IC Role / Device Role / Timing Role: Wide-input buck converter handling cold-crank (4.5 V) to load-dump (36 V) transients per ISO 7637-2. Use Value: 60 ns minimum on-time avoids frequency foldback during 12 V → 3.3 V conversion; hiccup protection survives cable short events. |
| Smart Building HVAC Controller | Grid-Tied Energy Monitor |
Use Scenario: Powers ARM Cortex-M7 MCU, wireless SoC, and environmental sensors in wall-mounted HVAC controller with 12–24 V AC/DC adapter input. IC Role / Device Role / Timing Role: Main 3.3 V rail generator with precision enable for controlled power-up sequencing and brownout recovery. Use Value: ±1.5% reference tolerance maintains ADC reference stability; 120 µA quiescent current extends battery backup runtime. | Use Scenario: Converts rectified AC line (up to 36 V DC) to clean 5 V for metrology-grade ADC and isolation barrier in smart electricity meter. IC Role / Device Role / Timing Role: Isolated auxiliary supply stage feeding isolated data acquisition subsystem. Use Value: Internal soft-start (1.8 ms) prevents inrush into large input filter caps; thermal shutdown protects against enclosure overheating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS560430XDBVT | 1.1 MHz switching frequency; identical pinout and feature set except oscillator frequency. | Better light-load efficiency in PFM mode due to lower fSW; larger inductor required for same ripple. | Select when prioritizing >90% efficiency below 50 mA load over solution size. |
| TPS560430YFDBVT | 2.1 MHz FPWM version - forces constant frequency across full load range, eliminating PFM noise. | Required where EMI-sensitive analog circuits (e.g., precision ADCs) demand deterministic switching spectrum. | Choose when low output voltage ripple and predictable EMI profile outweigh light-load efficiency loss. |
Compared with TPS560430XDBVT, the TPS560430YDBVT trades ~3–5% light-load efficiency for smaller magnetics and faster transient response; versus TPS560430YFDBVT, it delivers higher PFM-mode efficiency but introduces variable-frequency operation that may complicate EMI filtering.
Availability
TPS560430YDBVT is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive camera systems, smart building HVAC controllers, and grid-tied energy monitors requiring stable component supply with long-term production continuity.
Supply support for TPS560430YDBVT 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 headquartered in Dallas, Texas, designing and manufacturing analog, embedded processing, and logic ICs for industrial, automotive, and communications markets.
The TPS560430 product line delivers SIMPLE SWITCHER® synchronous buck converters optimized for rugged industrial and automotive environments - emphasizing wide input range, integrated protection, and ease-of-use through internal compensation and fixed-frequency control.
FAQ
What is the switching frequency of the TPS560430YDBVT?
TPS560430YDBVT operates at a nominal 2.1 MHz switching frequency, with tolerance of ±10% (1.785–2.415 MHz) over temperature and input voltage. This frequency is factory-trimmed and fixed - no external resistor or capacitor adjusts it. The Y-suffix explicitly denotes the 2.1 MHz variant within the TPS560430 family, distinguishing it from the 1.1 MHz X-suffix versions.
Does the TPS560430YDBVT support adjustable output voltage?
Yes, the TPS560430YDBVT supports fully adjustable output voltage via an external resistor divider connected to the FB pin. The internal 1.000 V reference sets VOUT = 1.000 V × (1 + RFBT/RFBB). Texas Instruments recommends RFBT between 10 kΩ and 100 kΩ and RFBB sized for 10–100 µA divider current. Fixed-output variants (e.g., 3.3 V) exist but are separate part numbers - TPS560430YDBVT is adjustable-only.
What protection features does the TPS560430YDBVT include?
TPS560430YDBVT integrates cycle-by-cycle overcurrent protection on both high-side (0.8–1.4 A peak limit) and low-side (0.62–0.98 A valley limit) MOSFETs, thermal shutdown at 170°C with 12°C hysteresis, input UVLO (3.55–4.00 V rising threshold), and hiccup-mode short-circuit recovery with 135 ms off-time. These features operate autonomously without external components and are validated across –40°C to 125°C.
Can the TPS560430YDBVT start up into a pre-biased output?
Yes, the TPS560430YDBVT supports startup into a pre-biased output - a critical capability for hot-swap and redundant power systems. During startup, the device disables the low-side MOSFET until the internal reference ramps up, preventing reverse current flow from the output capacitor into the IC. This behavior is inherent to the control architecture and requires no external circuitry or configuration.
What is the recommended bootstrap capacitor for the TPS560430YDBVT?
The recommended bootstrap capacitor for TPS560430YDBVT is a 100-nF X7R or X5R ceramic capacitor rated for ≥16 V, placed directly between CB and SW pins. TI specifies this value to ensure sufficient charge transfer for high-side gate drive across temperature and load conditions. Placement must minimize loop inductance - the capacitor should be located adjacent to the CB and SW pads with short, wide traces.
TPS560430YDBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SIMPLE SWITCHER®
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- PFM
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 34.2V
- Current - Output:
- 600mA
- Frequency - Switching:
- 2.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
TPS560430YDBVT FAQ
1.How can I place an order for TPS560430YDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS560430YDBVT 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 TPS560430YDBVT reliable?
The price and inventory of TPS560430YDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS560430YDBVT is usually 5 days.
3.What payment methods are accepted for TPS560430YDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS560430YDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS560430YDBVT?
TPS560430YDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS560430YDBVT 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 TPS560430YDBVT?
For technical support, including TPS560430YDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS560430YDBVT requirements.
6.How does Aetrix verify that TPS560430YDBVT is sourced from the original manufacturer or authorized distributors?
All TPS560430YDBVT 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 TPS560430YDBVT meets industry standards.
7.What is the process for return or replacement of TPS560430YDBVT?
All TPS560430YDBVT units undergo pre-shipment inspection (PSI). If there is an issue with TPS560430YDBVT, 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 TPS560430YDBVT part is unused and in its original packaging.
Return procedure for TPS560430YDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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