My Inquiry
My Account
Texas Instruments TPS54362AQPWPRQ1
- Part No.:
- TPS54362AQPWPRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS54362AQPWPRQ1.pdf
- Description:
- IC REG BUCK ADJ 3A 20HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,174
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS54362AQPWPRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified 60-V, 3-A asynchronous step-down DC-DC converter with voltage-mode control, programmable overvoltage/undervoltage monitoring, and low-power mode (65 μA quiescent current). It integrates a 0.8 V ±1.5% reference, 200 kHz–2.2 MHz adjustable switching frequency, and slew-rate-controlled internal FET for automotive telematics and navigation systems.
For engineers reviewing the TPS54362AQPWPRQ1 datasheet, TPS54362AQPWPRQ1 pinout, TPS54362AQPWPRQ1 application, or TPS54362AQPWPRQ1 equivalent, key selection considerations include input voltage range (3.6 V to 48 V), reset delay programmability via Cdly capacitor, soft-start timing control, external compensation capability, and thermal shutdown at 175°C junction temperature.
Technical Context
The TPS54362AQPWPRQ1 implements voltage-mode control with input-voltage feed-forward to improve line transient response. Its cycle-by-cycle current limit and frequency foldback protect against output overload, while pulse-skip mode reduces quiescent current to 65 μA under light loads.
It features dual supervisor inputs-RST_TH for undervoltage reset assertion and OV_TH for overvoltage shutdown-and supports synchronization via the SYNC pin up to 1.1 MHz. The LPM pin enables digital control of low-power mode entry, and Rslew sets internal FET slew rate to balance EMI and efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.6 V to 48 V - Supports wide automotive battery transients and cold-crank conditions without external pre-regulation. |
| Output Current | 3 A max - Delivers sufficient power for microcontrollers, displays, and sensor hubs in automotive infotainment. |
| Switching Frequency | 200 kHz to 2.2 MHz - Adjustable via RT resistor; enables optimization for size (high f) or efficiency (low f). |
| Quiescent Current | 65 μA typical in LPM - Enables always-on functionality in battery-powered telematics with minimal standby drain. |
| Reference Voltage | 0.8 V ±1.5% - Sets precise output regulation across temperature; tolerance directly impacts final VOUT accuracy. |
| Reset Threshold Accuracy | ±4% on RST_TH - Ensures reliable system-level power-on-reset timing within automotive ASIL-B requirements. |
| Thermal Shutdown | 175°C with 30°C hysteresis - Prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
TPS54362AQPWPRQ1 is housed in a thermally enhanced 20-pin HTSSOP (PWP) package with exposed PowerPAD™ for efficient heat dissipation. Package dimensions are 6.50 mm × 4.40 mm, compatible with standard surface-mount assembly processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Unregulated input supply | Accepts 3.6–48 V; must be decoupled with low-ESR capacitor near pin to suppress switching noise and support peak current demands. |
| VReg | Regulated output | Provides 0.9–18 V output; connects internally to 100 Ω load during startup and overvoltage events for fast recovery and protection. |
| VSENSE | Error amplifier inverting input | Monitors feedback divider; compares against 0.8 V reference to regulate output voltage with ±1.5% reference tolerance. |
| COMP | Error amplifier output | Connects to external RC network for loop compensation; determines stability, bandwidth, and transient response. |
| BOOT | Bootstrap gate drive | Requires 0.1 μF ceramic capacitor between BOOT and PH to sustain high-side FET gate voltage during duty cycles >50%. |
| RST | Open-drain reset output | Asserts low when VReg falls below RST_TH threshold; requires external pull-up for system MCU reset signaling. |
| EN | Enable control | Active-high; internal pull-up allows default operation; external pulldown disables device and reduces shutdown current to 1 μA. |
| LPM | Low-power mode control | Digital input enabling PFM operation; internal 62 kΩ pulldown ensures defined state if left unconnected. |
| SYNC | External clock input | Overrides internal oscillator; accepts 180–2200 kHz signal with 2× fSW max; enables EMI reduction via frequency dithering. |
| RT | Oscillator frequency set | Resistor-to-ground programs fSW; 100 kΩ yields ~500 kHz; supports tight EMI compliance in noisy automotive environments. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Reset Delay | Cdly capacitor sets POR delay (1 ms/nF); enables precise sequencing with microcontrollers and PMICs in multi-rail systems. |
| Slew-Rate Controlled Switch | Rslew resistor adjusts internal FET turn-on/off speed; reduces EMI emissions without sacrificing efficiency or thermal performance. |
| Overvoltage Protection | OV_TH pin triggers immediate FET shutdown if VReg exceeds programmed threshold; prevents downstream IC damage during load dump. |
| Soft-Start Control | SS capacitor linearly ramps VReg at power-up; eliminates inrush current and prevents output overshoot into capacitive loads. |
| Thermal & Overcurrent Protection | Combines cycle-by-cycle current limiting, frequency foldback, and 175°C thermal shutdown to ensure robust fault handling. |
Applications
| Automotive Telematics | Navigation Systems |
|---|---|
|
Use Scenario: Powering GPS modules, cellular modems, and CAN controllers in vehicle tracking units operating across –40°C to 125°C ambient. IC Role / Device Role / Timing Role: Primary buck regulator delivering stable 5 V or 3.3 V from 12 V battery rail; provides synchronized reset signal for modem boot sequence. Use Value: 65 μA LPM current extends battery life during sleep; 60 V input withstands ISO 7637-2 pulse 5a transients without external TVS. |
Use Scenario: Supplying display processors, touch controllers, and flash memory in in-dash infotainment head units. IC Role / Device Role / Timing Role: Regulates 1.2 V core and 3.3 V I/O rails; uses SS pin to coordinate power-up timing with FPGA configuration. Use Value: External compensation enables fast transient response to dynamic CPU load changes; RST_TH ensures clean system reset during brownout. |
| Battery-Powered Instrumentation | In-Dash Instrument Clusters |
|
Use Scenario: Powering portable diagnostic tools and OBD-II scanners powered by 12 V lead-acid or LiFePO₄ batteries. IC Role / Device Role / Timing Role: Single-chip solution replacing discrete regulators and supervisors; manages both main rail and auxiliary 1.8 V logic supply. Use Value: 3 A output supports multiple peripherals; programmable OV_TH prevents overvoltage damage to sensitive analog sensors. |
Use Scenario: Delivering regulated power to stepper motor drivers, LED backlighting, and microcontroller subsystems in digital instrument panels. IC Role / Device Role / Timing Role: Supplies 5 V for MCU and 12 V for backlight boost; uses SYNC pin to align switching edges with display refresh timing. Use Value: HTSSOP PowerPAD™ enables compact layout on space-constrained cluster PCBs; thermal shutdown protects against enclosed enclosure overheating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5164QPWPRQ1 | 42 V max input, 0.5 A output, integrated high-side FET; no LPM or RST functions | Suitable for lower-power auxiliary rails only; lacks reset supervision and automotive-grade monitoring | Choose for cost-sensitive, low-current sub-systems where full TPS54362AQPWPRQ1 feature set is unnecessary |
| TPS54361QPWPRQ1 | Same 60 V/3 A rating but fixed 500 kHz fSW; no SYNC, no OV_TH, no Cdly | Supports basic buck conversion but omits programmable reset, overvoltage shutdown, and synchronization | Select when simplified BOM and reduced design complexity outweigh need for advanced supervision and EMI control |
Compared with LM5164QPWPRQ1 and TPS54361QPWPRQ1, the TPS54362AQPWPRQ1 uniquely combines 60 V input, 3 A output, AEC-Q100 Grade 1 qualification, and full programmable supervision-making it the only option for safety-critical automotive power rails requiring coordinated reset, overvoltage protection, and EMI-aware switching.
Availability
TPS54362AQPWPRQ1 is available at Aetrix Electronics and suitable for automotive telematics, navigation systems, and battery-powered instrumentation requiring stable component supply across extended temperature and long product lifecycles.
Supply support for TPS54362AQPWPRQ1 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 and embedded processing technologies, with deep expertise in automotive-grade power management ICs.
The TPS54362x-Q1 product line was designed specifically for automotive power conversion in harsh environments-delivering high reliability, wide input range, and integrated supervision for telematics, ADAS, and infotainment subsystems.
FAQ
What is the maximum input voltage rating for the TPS54362AQPWPRQ1?
The TPS54362AQPWPRQ1 has an absolute maximum input voltage rating of 60 V on the VIN pin. It operates continuously across a recommended input range of 3.6 V to 48 V, making it suitable for automotive battery systems including cold-crank and load-dump conditions. Exceeding 60 V risks permanent damage per the Absolute Maximum Ratings table.
How does the TPS54362AQPWPRQ1 implement low-power mode?
The TPS54362AQPWPRQ1 enters low-power mode (LPM) automatically when load current drops below the discontinuous conduction mode (DCM) threshold, reducing quiescent current to 65 μA typical. The LPM pin provides optional digital control: driving it high forces LPM activation regardless of load, while pulling it low disables LPM. This dual-mode control enables flexible power management in always-on automotive modules.
Can the TPS54362AQPWPRQ1 be synchronized to an external clock?
Yes, the TPS54362AQPWPRQ1 supports external clock synchronization via the SYNC pin. It accepts an input clock between 180 kHz and 2.2 MHz, provided the external frequency is greater than the internal oscillator frequency and less than twice that value. This capability enables EMI reduction through frequency alignment and dithering in noise-sensitive automotive applications.
What is the function of the Rslew pin on the TPS54362AQPWPRQ1?
The Rslew pin on the TPS54362AQPWPRQ1 connects to an external resistor to ground that controls the slew rate of the internal high-side FET's gate drive. Adjusting Rslew allows designers to trade off EMI emissions against switching losses-lower resistance increases slew rate (faster edges, higher EMI), while higher resistance slows transitions (reduced EMI, slightly lower efficiency). Typical values range from 10 kΩ to 50 kΩ.
How is the reset delay time programmed on the TPS54362AQPWPRQ1?
The reset delay time on the TPS54362AQPWPRQ1 is programmed using an external capacitor on the Cdly pin. The delay follows a linear relationship of approximately 1 ms per nanofarad (1 ms/nF), providing precise power-on reset timing for microcontrollers and FPGAs. For example, a 4.7 nF capacitor yields a nominal 4.7 ms delay before RST is released high after VReg reaches the RST_TH threshold.
TPS54362AQPWPRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.6V
- Voltage - Input (Max):
- 48V
- Voltage - Output (Min/Fixed):
- 0.9V
- Voltage - Output (Max):
- 18V
- Current - Output:
- 3A
- Frequency - Switching:
- 200kHz ~ 2.2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-HTSSOP
TPS54362AQPWPRQ1 FAQ
1.How can I place an order for TPS54362AQPWPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS54362AQPWPRQ1 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 TPS54362AQPWPRQ1 reliable?
The price and inventory of TPS54362AQPWPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54362AQPWPRQ1 is usually 5 days.
3.What payment methods are accepted for TPS54362AQPWPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54362AQPWPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS54362AQPWPRQ1?
TPS54362AQPWPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS54362AQPWPRQ1 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 TPS54362AQPWPRQ1?
For technical support, including TPS54362AQPWPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54362AQPWPRQ1 requirements.
6.How does Aetrix verify that TPS54362AQPWPRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS54362AQPWPRQ1 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 TPS54362AQPWPRQ1 meets industry standards.
7.What is the process for return or replacement of TPS54362AQPWPRQ1?
All TPS54362AQPWPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS54362AQPWPRQ1, 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 TPS54362AQPWPRQ1 part is unused and in its original packaging.
Return procedure for TPS54362AQPWPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS54362AQPWPRQ1 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…
