My Inquiry
My Account
Texas Instruments TPS560430XFDBVR
- Part No.:
- TPS560430XFDBVR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6
- Datasheet:
-
TPS560430XFDBVR.pdf
- Description:
- IC REG BUCK PWM 600MA SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:12,859
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS560430XFDBVR from Texas Instruments is a synchronous step-down DC-DC converter delivering up to 600 mA output current, operating from 4 V to 36 V input, with 1.1-MHz fixed switching frequency and forced PWM (FPWM) mode for constant-frequency operation and low output ripple. It integrates high- and low-side MOSFETs, internal compensation, and precision enable-designed for rugged industrial power rails in PLCs, motor drives, and AMI metering.
For engineers reviewing the TPS560430XFDBVR datasheet, TPS560430XFDBVR pinout, TPS560430XFDBVR application, or TPS560430XFDBVR equivalent, key selection criteria include its FPWM operation under light load, ±1.5% reference voltage accuracy over –40°C to 125°C, 60 ns minimum on-time, hiccup-mode short-circuit protection, and SOT-23-6 package compatibility with space-constrained embedded designs.
Technical Context
The TPS560430XFDBVR employs fixed-frequency peak-current mode control with internal slope compensation and fully integrated power switches. Its FPWM mode maintains constant 1.1-MHz switching across full load range, eliminating PFM-induced frequency variation and minimizing output voltage ripple.
It features cycle-by-cycle current limiting on both high-side (0.8–1.4 A peak) and low-side (–0.7 to –0.3 A negative limit) MOSFETs, thermal shutdown at 170°C, and precision enable with 1.1–1.36 V rising threshold. Frequency foldback extends duty cycle range below 100% while maintaining regulation down to 1 V output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4 V to 36 V - supports wide-input industrial and automotive supplies, including 24-V rail and battery-backed systems. |
| Output Current | 600 mA continuous - sufficient for powering microcontrollers, sensors, and interface ICs without external boost stages. |
| Switching Frequency | 1.1 MHz (±15%) - enables compact magnetics and EMI filtering; FPWM ensures stable frequency regardless of load. |
| Reference Voltage | 1.000 V ±1.5% (–40°C to 125°C) - enables accurate adjustable output setting with minimal temperature drift. |
| Min. On-Time | 60 ns - allows high VIN-to-VOUT conversion ratios (e.g., 36 V → 3.3 V) without requiring frequency foldback. |
| Enable Threshold | 1.23 V typical rising, 1.1 V falling - supports precise UVLO implementation via external resistor divider. |
| Quiescent Current | 120 µA (PFM version); FPWM version not specified - low IQ extends battery life in always-on monitoring nodes. |
Pinout & Package
SOT-23-6 package (2.90 mm × 1.60 mm), thermally enhanced with exposed pad (not electrically connected), suitable for high-density PCB layouts and reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CB | Bootstrap capacitor connection | Provides gate drive voltage for internal high-side MOSFET; requires 100-nF ceramic capacitor to SW. |
| GND | Power ground | Common return for internal low-side FET, CIN, and COUT; must be short, low-inductance path to minimize noise. |
| FB | Feedback input | Monitors output voltage via resistor divider; sets VOUT = 1.000 V × (1 + RFBT/RFBB); never short to GND. |
| EN | Precision enable | Logic-controlled startup; 1.23 V threshold enables system-level UVLO or sequencing without external supervisor. |
| VIN | Input supply | Connects to 4–36 V source and local CIN; powers internal LDO and high-side driver; bypassing critical for stability. |
| SW | Switch node | Drives external inductor; connects internally to sources of HS and drains of LS FETs; high dv/dt node requiring tight layout. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated synchronous rectification | Eliminates external Schottky diode, reducing BOM count and improving efficiency by >5% at mid-load. |
| Internal compensation | Removes need for external Type-II/III compensation network-reduces design time and layout sensitivity. |
| Support for pre-biased output startup | Enables safe turn-on into powered systems (e.g., hot-swap, backup rails) without output voltage overshoot. |
| Hiccup-mode short-circuit protection | Limits average power dissipation during sustained overload, preventing thermal runaway and enabling self-recovery. |
| 98% maximum duty cycle | Permits ultra-low dropout operation (e.g., 5.5 V → 5 V), extending usable input range in brownout conditions. |
Applications
| PLC Power Rail | Motor Drive Bias Supply |
|---|---|
Use Scenario: Powers I/O modules and communication interfaces in programmable logic controllers operating from 24-V DC industrial bus. IC Role / Device Role / Timing Role: Primary 5-V or 3.3-V point-of-load regulator supplying MCU, CAN transceivers, and analog front-ends. Use Value: FPWM mode ensures stable 1.1-MHz switching under variable load, minimizing conducted EMI coupling into sensitive analog circuits. | Use Scenario: Generates isolated gate-driver bias voltage in AC inverter stages using discrete IGBTs or SiC MOSFETs. IC Role / Device Role / Timing Role: Auxiliary 15-V or 20-V supply for isolated gate drivers, derived from main DC bus (e.g., 300-V DC link stepped down via auxiliary winding). Use Value: 36-V max input and 60 ns min on-time allow direct derivation from auxiliary windings without intermediate regulators. |
| AMI Metering System | HVAC Controller |
Use Scenario: Powers metrology SoC, RF module, and real-time clock in advanced metering infrastructure endpoints deployed in utility substations. IC Role / Device Role / Timing Role: Main 3.3-V supply with startup support for pre-biased supercapacitor backup rails during mains interruption. Use Value: ±1.5% reference tolerance and –40°C to 125°C operation ensure accurate ADC reference and RTC timing across outdoor temperature extremes. | Use Scenario: Supplies HVAC control board with 5-V for microcontroller, 12-V for relays, and 24-V for actuator drivers in commercial building automation panels. IC Role / Device Role / Timing Role: Multi-rail generator using cascaded TPS560430XFDBVR outputs (e.g., 5 V → LDO → 3.3 V) for noise isolation. Use Value: SOT-23-6 footprint enables dense multi-output layouts; thermal shutdown prevents failure during prolonged relay coil energization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS560430XDBVR | 1.1-MHz PFM mode instead of FPWM; higher light-load efficiency but variable frequency and increased output ripple. | Better suited for battery-powered sensor nodes where quiescent current dominates lifetime; less ideal for noise-sensitive analog rails. | Select TPS560430XDBVR only when EMI filtering simplicity outweighs need for constant-frequency regulation. |
| TPS560430YFDBVR | 2.1-MHz FPWM operation; smaller external inductor/capacitor requirements but higher switching losses at heavy load. | Preferred for ultra-compact designs (e.g., camera modules) where board area is constrained more than thermal budget. | Choose TPS560430YFDBVR when solution size reduction justifies ~3–5% efficiency penalty above 300 mA. |
Compared with TPS560430XDBVR, the TPS560430XFDBVR delivers tighter output regulation and lower ripple under dynamic load due to FPWM; compared with TPS560430YFDBVR, it trades higher efficiency at full load for larger passive components-making it optimal for thermally constrained industrial applications requiring robust 1.1-MHz operation.
Availability
TPS560430XFDBVR is available at Aetrix Electronics and suitable for PLC power rails, motor drive bias supplies, and AMI metering systems requiring stable component supply, long-term manufacturability, and industrial-grade reliability.
Supply support for TPS560430XFDBVR 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-reliability industrial power solutions.
The TPS560430 family is designed for rugged, wide-input DC-DC conversion in factory automation, grid infrastructure, and automotive aftermarket systems-emphasizing ease of use, small solution size, and built-in protection.
FAQ
What is the switching frequency of the TPS560430XFDBVR and how is it stabilized?
The TPS560430XFDBVR operates at a nominal 1.1 MHz with ±15% tolerance and uses forced PWM (FPWM) mode to maintain constant frequency across all load conditions-from zero to 600 mA. This eliminates frequency dithering seen in PFM mode, ensuring predictable EMI behavior and stable loop response. The oscillator is internally trimmed and does not require external components for frequency setting. TPS560430XFDBVR achieves this via dedicated FPWM control logic that overrides pulse-skipping behavior even at light loads.
Does the TPS560430XFDBVR support startup into a pre-biased output?
Yes, the TPS560430XFDBVR supports startup into a pre-biased output-a critical feature for hot-swap and redundant power systems. During startup, the device disables the low-side MOSFET until the feedback voltage rises above the reference, preventing reverse current flow from the output capacitor into the IC. This avoids output voltage overshoot and protects downstream circuitry. TPS560430XFDBVR implements this behavior inherently through its current-mode control architecture and internal soft-start sequencing.
What are the absolute maximum ratings for VIN and EN on the TPS560430XFDBVR?
The TPS560430XFDBVR has an absolute maximum VIN rating of 38 V and an EN pin voltage limit of VIN + 0.3 V (with minimum –0.3 V). Exceeding 38 V on VIN risks permanent damage to internal high-side MOSFETs and gate drivers. For EN, applying voltage above VIN + 0.3 V-especially when VIN = 0 V-can forward-bias internal ESD structures and degrade long-term reliability. TPS560430XFDBVR datasheet specifies these limits under "Absolute Maximum Ratings" section 7.1 and must be strictly observed in layout and system design.
How does the hiccup-mode short-circuit protection work in the TPS560430XFDBVR?
When the TPS560430XFDBVR detects sustained overcurrent-defined as FB voltage dropping below 40% of VREF for 256 consecutive cycles-it enters hiccup mode: the device shuts down for 135 ms (typical), then attempts automatic restart. If the fault persists, the cycle repeats. This limits average power dissipation, prevents thermal runaway, and avoids catastrophic failure during hard shorts. TPS560430XFDBVR implements hiccup detection independently of current-sense thresholds, using FB voltage as the primary fault indicator for robustness.
Can the TPS560430XFDBVR be used with an adjustable output voltage, and what is the recommended feedback resistor range?
Yes, the TPS560430XFDBVR supports adjustable output voltage via an external resistor divider on the FB pin, with VOUT = 1.000 V × (1 + RFBT/RFBB). Texas Instruments recommends RFBT between 10 kΩ and 100 kΩ for optimal noise immunity and divider current balance; RFBB is typically selected for 100 µA divider current. Values outside this range risk instability (RFBT < 10 kΩ) or excessive noise susceptibility (RFBT > 1 MΩ). TPS560430XFDBVR's ±1.5% reference ensures ≤±2% total output tolerance with 1% resistors.
TPS560430XFDBVR 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:
- PWM
- 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:
- 1.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
TPS560430XFDBVR FAQ
1.How can I place an order for TPS560430XFDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS560430XFDBVR 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 TPS560430XFDBVR reliable?
The price and inventory of TPS560430XFDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS560430XFDBVR is usually 5 days.
3.What payment methods are accepted for TPS560430XFDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS560430XFDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS560430XFDBVR?
TPS560430XFDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS560430XFDBVR 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 TPS560430XFDBVR?
For technical support, including TPS560430XFDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS560430XFDBVR requirements.
6.How does Aetrix verify that TPS560430XFDBVR is sourced from the original manufacturer or authorized distributors?
All TPS560430XFDBVR 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 TPS560430XFDBVR meets industry standards.
7.What is the process for return or replacement of TPS560430XFDBVR?
All TPS560430XFDBVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS560430XFDBVR, 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 TPS560430XFDBVR part is unused and in its original packaging.
Return procedure for TPS560430XFDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS560430XFDBVR 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…
