My Inquiry
My Account
Texas Instruments TPS6565342RHDTQ1
- Part No.:
- TPS6565342RHDTQ1
- Manufacturer:
- Texas Instruments
- Category:
- Special Purpose Regulators
- Package:
- 28-VFQFN Exposed Pad
- Datasheet:
-
TPS6565342RHDTQ1.pdf
- Description:
- IC PWR MGMT SWITCHING REGULATOR
- Quantity:
- Payment:
- Shipping:
Inventory:250
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS6565342RHDTQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive dual buck DC/DC converter IC delivering two independent 3 A output rails (Buck0 and Buck1), programmable from 1 V to 3.36 V with 5 mV/20 mV step resolution, 4 MHz switching frequency, and AUTO mode PWM/PFM operation for high efficiency across load range - deployed in radar ECU and surround-view camera modules.
For engineers reviewing the TPS6565342RHDTQ1 datasheet, TPS6565342RHDTQ1 pinout, TPS6565342RHDTQ1 application, or TPS6565342RHDTQ1 equivalent, key selection criteria include its dual 3 A capability, I²C-configurable slew rate (0.47–10 mV/µs), spread-spectrum EMI reduction, external clock synchronization (1–24 MHz), and integrated thermal warning/shutdown protection for safety-critical automotive power rails.
Technical Context
The TPS6565342RHDTQ1 integrates two synchronous current-mode buck regulators with independent feedback (FB_B0/FB_B1), programmable current limits (1.5–4 A), and soft-start-controlled voltage ramping. Its AUTO mode dynamically transitions between PFM (<600 mA) and PWM (≥600 mA) based on real-time load, while forced PWM mode ensures fixed 4 MHz operation regardless of load.
Control is implemented via a 3.4 MHz-capable I²C interface supporting standard/fast/fast+/high-speed modes, with register-accessible features including GPO/GPO2 configuration, PGOOD source selection, interrupt masking, and remote sensing compensation. The device supports external clock synchronization (CLKIN) and phase interleaving to minimize input/output ripple and system-level EMI.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8 V to 5.5 V - supports direct connection to automotive battery rail with UVLO (2.63 V) and OVP (5.8 V) protection |
| Output Voltage Range | 1.0 V to 3.36 V - programmable in 5 mV steps (1–1.4 V) or 20 mV steps (1.4–3.36 V) for precise SoC core/memory rail alignment |
| Max Output Current | 3 A per channel - sustained delivery enabled by low RDS(on) (HS: 110 mΩ, LS: 90 mΩ) and 5.0 × 5.0 mm VQFN thermal pad |
| Switching Frequency | 4 MHz nominal (3.6–4.4 MHz) - enables compact 0.47 µH inductor and <25 mVp-p ripple at 500 mA in PWM mode |
| I²C Interface Speed | Up to 3.4 MHz - allows rapid register writes for dynamic voltage scaling (DVS) and real-time fault response |
| Thermal Protection | Die temperature warning at 125 °C (configurable), shutdown at 150 °C - hysteresis prevents chatter during transient overload |
| Output Slew Rate | Programmable 0.47–10 mV/µs - minimizes inrush current and overshoot during startup/voltage transitions |
Pinout & Package
TPS6565342RHDTQ1 uses a 28-pin, 5.0 mm × 5.0 mm VQFN package with wettable flanks and exposed thermal pad - optimized for automotive PCB assembly and thermal dissipation in space-constrained ECUs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB_B0, FB_B1 | Feedback Input | High-impedance analog inputs for closed-loop regulation; support remote sensing to compensate PCB IR drop |
| VIN_B0, VIN_B1 | Power Input | Independent input pins per buck channel - must be externally tied together and locally bypassed per datasheet layout rules |
| SW_B0, SW_B1 | Switch Node | High-frequency switching nodes connecting to external inductors; require tight loop area and Kelvin routing |
| PGND_B0, PGND_B1 | Power Ground | Dedicated low-impedance ground returns for each buck stage - separate from AGND/SGND to isolate noise |
| SCL, SDA | I²C Interface | Open-drain digital bus lines supporting up to 3.4 MHz; require external pullups to VANA (≤3.6 V) |
| nINT | Interrupt Output | Open-drain active-low signal indicating masked/unmasked faults (PGOOD, thermal, OVP, UVLO) |
| EN | Enable Input | Logic-level enable controlling both buck regulators and GPOs; floating = disabled, pulled high = enabled |
| GPO, CLKIN (GPO2) | Configurable Digital Output | Push-pull or open-drain programmable outputs - CLKIN doubles as GPO2 when external sync not used |
| PGOOD | Power-Good Indicator | Programmable open-drain output signaling valid regulation within ±2% + 20 mV (PFM) or ±2% (PWM) |
Key Features
| Feature | Design Value |
|---|---|
| Spread-spectrum & phase interleaving | Reduces peak EMI amplitude by spreading energy across 4 MHz ±100 kHz band and offsetting buck phases |
| Programmable slew rate control | Seven discrete settings (0.47–10 mV/µs) prevent overshoot during DVS and ensure controlled inrush into large POL capacitance |
| Integrated current measurement | On-chip ADC measures average load current (0–10.22 A range, 20 mA LSB) without external sense resistor |
| Automotive-grade protection suite | Includes overtemperature warning/shutdown, output short-circuit detection (360 mV threshold), and bidirectional current limiting (1.6–4 A) |
| Remote voltage sensing support | Compensates for IR drop between regulator output and point-of-load, improving output accuracy to ±0.5% typical under load |
Applications
| Radar System ECU | Automotive Camera Module |
|---|---|
Use Scenario: Powering 77 GHz radar transceiver SoCs requiring ultra-low-noise, tightly regulated 1.0 V and 1.8 V rails with fast transient response. IC Role / Device Role / Timing Role: Dual-buck power management IC providing independent, synchronized, low-ripple supplies with programmable sequencing and slew control. Use Value: Spread-spectrum mode and phase interleaving suppress radiated emissions critical for FCC/CE compliance in millimeter-wave systems. |
Use Scenario: Supplying image sensor, ISP, and MIPI PHY in ADAS front/rear/side cameras operating in –40°C to +125°C ambient. IC Role / Device Role / Timing Role: Automotive-qualified dual regulator delivering 3 A @ 1.2 V (sensor core) and 3 A @ 2.8 V (I/O) with thermal warning before shutdown. Use Value: AEC-Q100 Grade 1 qualification and 125 °C junction rating ensure reliability in sealed, unventilated camera housings. |
| Surround View System ECU | Automotive Head Unit |
Use Scenario: Powering four simultaneous camera inputs and FPGA-based stitching engine requiring coordinated voltage ramps and rail sequencing. IC Role / Device Role / Timing Role: Dual-buck controller with programmable start-up delays, GPO-synchronized enable, and I²C-managed DVS for multi-rail coordination. Use Value: Independent EN control and GPO outputs allow precise sequencing of camera power-up relative to FPGA configuration and video pipeline initialization. |
Use Scenario: Delivering clean, efficient power to infotainment SoC cores, DDR memory, and display interfaces in head units with strict EMC requirements. IC Role / Device Role / Timing Role: High-efficiency dual buck converter with AUTO mode PFM/PWM transition minimizing quiescent current during display sleep states. Use Value: 9 µA standby current and PFM operation below 600 mA extend battery life during ignition-off periods without compromising wake-up responsiveness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-buck automotive power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS6565312RHDTQ1 | Same die, different OTP configuration: fixed 1.0 V / 1.8 V outputs (non-programmable), no GPO2 functionality on CLKIN | Limited to fixed-rail designs; lacks dynamic DVS and external clock sync capability | Select only if application requires immutable 1.0 V/1.8 V outputs and eliminates need for I²C configuration overhead |
| TPS656532RHDTQ1 | Same package and pinout, but with reduced feature set: no spread-spectrum, no phase interleaving, no thermal warning interrupt | Lower EMI mitigation capability; unsuitable for radar or high-density ECU layouts sensitive to conducted emissions | Choose for cost-sensitive non-radar applications where full EMI suppression and thermal monitoring are not required |
Compared with TPS6565342RHDTQ1, the TPS6565312RHDTQ1 sacrifices programmability for simplicity and the TPS656532RHDTQ1 reduces EMI features to lower BOM cost - neither offers the full combination of dual 3 A programmability, spread-spectrum, thermal warning, and I²C-configurable slew rate that defines the TPS6565342RHDTQ1's role in high-integrity automotive power systems.
Availability
TPS6565342RHDTQ1 is available at Aetrix Electronics and suitable for radar ECU, surround-view camera module, and automotive head unit designs requiring stable component supply, AEC-Q100 compliance, and long-term automotive lifecycle support.
Supply support for TPS6565342RHDTQ1 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 automotive qualification expertise and ISO/TS 16949-certified manufacturing.
The TPS65653-Q1 product line delivers high-efficiency, AEC-Q100-compliant dual-buck power management for noise-sensitive automotive ADAS and infotainment systems - designed specifically for radar, camera, and display ECU applications demanding precision regulation and robust fault handling.
FAQ
What is the maximum output current per channel for the TPS6565342RHDTQ1?
The TPS6565342RHDTQ1 delivers up to 3 A continuous output current per buck channel (Buck0 and Buck1). This rating is validated across the full –40°C to +125°C ambient temperature range with proper PCB thermal design, including use of the exposed thermal pad and recommended copper pour. Peak current capability is limited by the programmable forward current limit (1.5–4 A) and thermal derating above 125°C junction temperature.
Does the TPS6565342RHDTQ1 support external clock synchronization?
Yes, the TPS6565342RHDTQ1 supports external clock synchronization via the CLKIN pin, accepting input frequencies from 1 MHz to 24 MHz in 1 MHz steps. When enabled, the internal PLL locks to the external clock, allowing precise timing alignment across multiple power rails or with system clocks - critical for reducing beat frequencies and EMI in radar and camera systems.
How does the AUTO mode operation work in the TPS6565342RHDTQ1?
The TPS6565342RHDTQ1 AUTO mode automatically switches between pulse-frequency modulation (PFM) at light loads (<600 mA) and pulse-width modulation (PWM) at medium-to-heavy loads (≥600 mA) to maximize efficiency across the full output current range. This transition is seamless and managed internally without host intervention, though forced PWM mode can be selected via I²C to maintain fixed 4 MHz operation regardless of load.
What protection features are integrated into the TPS6565342RHDTQ1?
The TPS6565342RHDTQ1 integrates comprehensive protection: overvoltage (OVP) and undervoltage lockout (UVLO) on VANA, output overvoltage/undervoltage monitoring with programmable thresholds, output short-circuit detection (360 mV threshold), thermal warning (125 °C) and shutdown (150 °C), and programmable forward/negative current limiting. All protections generate maskable interrupts via the nINT pin.
Can the TPS6565342RHDTQ1 measure load current without external components?
Yes, the TPS6565342RHDTQ1 includes an integrated current-sense ADC that measures average output current for each buck channel with 20 mA resolution and <10% accuracy above 1 A. No external sense resistor is required - current measurement is initiated via I²C register write and completes in ≤50 µs, automatically forcing PWM mode during sampling for accuracy.
TPS6565342RHDTQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- -
- Voltage - Input:
- 2.8V ~ 5.5V
- Number of Outputs:
- 2
- Voltage - Output:
- 1V ~ 3.36V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-VQFN-EP (5x5)
TPS6565342RHDTQ1 FAQ
1.How can I place an order for TPS6565342RHDTQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS6565342RHDTQ1 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 TPS6565342RHDTQ1 reliable?
The price and inventory of TPS6565342RHDTQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS6565342RHDTQ1 is usually 5 days.
3.What payment methods are accepted for TPS6565342RHDTQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS6565342RHDTQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS6565342RHDTQ1?
TPS6565342RHDTQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS6565342RHDTQ1 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 TPS6565342RHDTQ1?
For technical support, including TPS6565342RHDTQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS6565342RHDTQ1 requirements.
6.How does Aetrix verify that TPS6565342RHDTQ1 is sourced from the original manufacturer or authorized distributors?
All TPS6565342RHDTQ1 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 TPS6565342RHDTQ1 meets industry standards.
7.What is the process for return or replacement of TPS6565342RHDTQ1?
All TPS6565342RHDTQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS6565342RHDTQ1, 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 TPS6565342RHDTQ1 part is unused and in its original packaging.
Return procedure for TPS6565342RHDTQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS6565342RHDTQ1 Tags
-
TPS51206DSQR
Texas Instruments
-
TPS51200DRCR
Texas Instruments
-
TPS51200DRCT
Texas Instruments
-
TPS62740DSSR
Texas Instruments
-
TPS51100DGQR
Texas Instruments
-
NCP51200MNTXG
onsemi
-
NCP51400MNTXG
onsemi
-
RT9026GSP
Richtek USA Inc.
-
LP2998MRX/NOPB
Texas Instruments
-
TPS51200QDRCRQ1
Texas Instruments
-
DPA423GN-TL
Power Integrations
-
LM10011SD/NOPB
Texas Instruments
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…
