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Texas Instruments TPS54162QPWPRQ1
- Part No.:
- TPS54162QPWPRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS54162QPWPRQ1.pdf
- Description:
- IC REG BUCK ADJ 1A 20HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,374
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Product details
Overview
TPS54162QPWPRQ1 from Texas Instruments is an automotive-grade 1-A, 60-V asynchronous step-down DC/DC converter with integrated NMOS FET, voltage supervisor, and low-power mode. It operates from 3.6 V to 48 V input, delivers regulated output from 0.9 V to 18 V, features 50 µA typical quiescent current in LPM, and includes programmable overvoltage/undervoltage monitoring for power-on-reset in telematics and instrumentation systems.
For engineers reviewing the TPS54162QPWPRQ1 datasheet, TPS54162QPWPRQ1 pinout, TPS54162QPWPRQ1 application, or TPS54162QPWPRQ1 equivalent, key selection considerations include its 200 kHz–2.2 MHz programmable switching frequency, 0.8 V ±1.5% internal reference, thermal shutdown at 175°C, 20-pin HTSSOP PowerPAD™ package, and AEC-Q100 qualification for automotive environments.
Technical Context
The TPS54162QPWPRQ1 implements voltage-mode control with input voltage feed-forward to improve line transient regulation. Its cycle-by-cycle current limit and frequency foldback protect against overload, while thermal shutdown disables the internal switch above 175°C junction temperature.
It supports three operational modes: continuous conduction (CCM) at heavy loads, discontinuous conduction (DCM) at light loads, and low-power mode (LPM) with 50 µA quiescent current when LPM pin is low. Reset assertion uses a user-programmable Cdly capacitor (3.6–7 ms/nF delay) and RST_TH resistor divider for undervoltage detection at 0.768–0.832 V threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.6 V to 48 V - withstands transients up to 60 V, enabling direct battery connection in 12 V/24 V automotive systems. |
| Output Current | 1 A maximum - supports mid-power subsystems like infotainment displays or sensor hubs without external FETs. |
| Quiescent Current | 50 µA typical in LPM - extends battery runtime in always-on vehicle modules such as GPS trackers or remote keyless entry receivers. |
| Switching Frequency | 200 kHz to 2.2 MHz - adjustable via RT pin resistor; allows EMI optimization and compact magnetics selection. |
| Voltage Reference | 0.8 V ±1.5% - sets output accuracy across temperature; enables stable 3.3 V, 5 V, or 12 V rails using external feedback resistors. |
| Junction Temperature | –40°C to 150°C - meets AEC-Q100 Grade 1 requirements for under-hood and dashboard applications. |
| Package | 20-pin HTSSOP PowerPAD™ - exposes thermal pad for efficient PCB heat dissipation; θJA = 35°C/W on JEDEC board. |
Pinout & Package
TPS54162QPWPRQ1 is housed in a thermally enhanced 20-pin HTSSOP PowerPAD™ package (PWP), with exposed thermal pad electrically connected to GND for optimal thermal performance. Pin 10 (GND) must be soldered to the PCB thermal pad per TI SLMA002 guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (18,19) | Unregulated input supply | Dual pins for high-current path; must be externally connected and protected against >60 V transients and reverse polarity. |
| PH (17) | Switch node | Source of internal NMOS FET; connects to external inductor and bootstrap capacitor (BOOT). |
| BOOT (20) | Bootstrap supply | Drives gate of internal high-side FET; requires ceramic capacitor (typically 0.1 µF) between BOOT and PH. |
| VReg (16) | Regulated output | Internal low-side FET output during startup; sinks current to limit overshoot when OV_TH is exceeded. |
| VSENSE (14) | Feedback input | Inverting input of error amplifier; sets output voltage via resistor divider referenced to 0.8 V internal reference. |
| EN (5) | Enable control | High-voltage tolerant digital input; device starts when VIH ≥ 1.7 V, shuts down to 1 µA when pulled low. |
| LPM (4) | Low-power mode select | Active-low control; forces LPM when grounded, disabling normal switching to reduce Iq to 50 µA. |
| RST (8) | Open-drain reset | Asserts low when VReg falls below RST_TH threshold; requires external pull-up for system reset signaling. |
| Cdly (9) | Reset delay timing | Charged by 2 µA current source; sets POR delay (3.6–7 ms/nF) before RST releases high after power-up. |
| GND (10) | Power ground | Must be connected to exposed thermal pad; primary return path for switching current and thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 (–40°C to 150°C TJ) - certified for safety-critical telematics and ADAS power rails. |
| Programmable slew rate | Controlled via Rslew pin (20–100 µA sink); limits dV/dt on PH node to reduce EMI and MOSFET stress. |
| Integrated voltage supervisor | Separate OV_TH and RST_TH inputs - enable independent overvoltage shutdown and undervoltage reset with external resistor dividers. |
| Soft-start control | SS pin sources 40–60 µA - sets output ramp time with external capacitor; prevents inrush current during enable. |
| Synchronization capability | SYNC pin accepts external clock (180 kHz–2.2 MHz) - enables noise-sensitive systems to avoid frequency beating with other converters. |
Applications
| Automotive Telematics | Navigation Systems |
|---|---|
Use Scenario: Powering GPS/GNSS receiver, cellular modem, and CAN interface in vehicle tracking units. IC Role / Device Role / Timing Role: Primary buck regulator delivering stable 3.3 V or 5 V rail; provides reset signal for microcontroller boot sequencing. Use Value: 50 µA LPM current extends battery backup runtime during ignition-off; 60 V transient tolerance handles load-dump events. |
Use Scenario: Supplying display controller, touch processor, and memory in in-vehicle navigation head units. IC Role / Device Role / Timing Role: Main power stage with programmable soft-start to coordinate multi-rail power-up timing. Use Value: External compensation (COMP pin) enables precise loop tuning for dynamic load steps from display backlight dimming. |
| In-Dash Instrumentation | Battery-Powered Vehicle Sensors |
Use Scenario: Regulating power for digital cluster MCU, stepper motor drivers, and analog gauges. IC Role / Device Role / Timing Role: High-reliability DC/DC with thermal shutdown and overcurrent protection for under-hood placement. Use Value: Junction temperature monitoring (175°C shutdown) prevents failure during prolonged high-ambient operation. |
Use Scenario: Powering tire pressure monitoring sensors (TPMS), door module controllers, or occupancy detectors. IC Role / Device Role / Timing Role: Low-quiescent buck converter enabling multi-year operation from coin-cell or small Li-ion batteries. Use Value: 1 µA shutdown current and programmable LPM minimize standby losses; wide VIN accommodates aging battery discharge curves. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5164QPWPRQ1 | 42 V max input, 1 A, synchronous rectification, 13 µA Iq; no integrated voltage supervisor or RST output. | Lacks power-on-reset and overvoltage monitoring; requires external supervisor IC for reset generation. | Choose when higher efficiency and lower Iq outweigh need for integrated supervision. |
| TPS54362QPWPRQ1 | Same family, 3.6–60 V input, 3 A output, identical pinout and feature set except higher current rating. | Direct upgrade path for designs requiring >1 A load current; shares same layout and support circuitry. | Choose when future-proofing for higher load or consolidating BOM across platforms with varying current needs. |
Compared with LM5164QPWPRQ1, TPS54162QPWPRQ1 offers integrated reset and overvoltage functions but trades off synchronous efficiency; compared with TPS54362QPWPRQ1, it provides identical supervision and control with lower cost and thermal footprint for ≤1 A applications.
Availability
TPS54162QPWPRQ1 is available at Aetrix Electronics and suitable for automotive telematics, in-dash instrumentation, and battery-powered vehicle sensors requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for TPS54162QPWPRQ1 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 solutions, with decades of automotive qualification expertise.
TPS54162QPWPRQ1 belongs to TI's automotive-qualified DC/DC converter portfolio, designed specifically for robust, low-Iq power conversion in harsh-temperature vehicle subsystems where supervision and reliability are critical.
FAQ
What is the absolute maximum input voltage rating for TPS54162QPWPRQ1?
The TPS54162QPWPRQ1 has an absolute maximum input voltage rating of 60 V on the VIN and EN pins. This allows it to survive automotive load-dump transients without external clamping. Operation above 48 V is not recommended for continuous use, as the recommended operating range is 3.6 V to 48 V. Exceeding 60 V risks permanent damage per the Absolute Maximum Ratings table.
How does the low-power mode (LPM) function in TPS54162QPWPRQ1?
The TPS54162QPWPRQ1 enters low-power mode when the LPM pin is pulled low and the device operates in discontinuous conduction mode. In this state, quiescent current drops to 50 µA typical, significantly extending battery life in always-on vehicle modules. The device cycles between brief active bursts and extended sleep periods, maintaining regulation while minimizing average power draw.
Can TPS54162QPWPRQ1 be synchronized to an external clock?
Yes, TPS54162QPWPRQ1 supports external synchronization via the SYNC pin. It accepts an external clock signal from 180 kHz to 2.2 MHz, with minimum and maximum duty cycles of 30% and 70%, respectively. Synchronization helps eliminate beat frequencies in multi-converter systems and reduces EMI in noise-sensitive automotive applications.
What is the purpose of the Rslew pin on TPS54162QPWPRQ1?
The Rslew pin on TPS54162QPWPRQ1 controls the slew rate of the internal switching FET by sinking 20–100 µA depending on the external resistor value. This limits dV/dt on the PH node, reducing electromagnetic interference and gate driver stress. It is especially valuable in automotive designs where strict CISPR-25 EMI limits apply.
How is the reset delay time programmed on TPS54162QPWPRQ1?
The reset delay time on TPS54162QPWPRQ1 is programmed using an external capacitor on the Cdly pin. The device charges this capacitor with a 2 µA current source, yielding a delay of 3.6–7 ms per nanofarad. For example, a 100 nF capacitor produces ~360–700 ms of power-on reset delay, allowing sufficient time for downstream circuits to stabilize before release.
TPS54162QPWPRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 1A
- 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
TPS54162QPWPRQ1 FAQ
1.How can I place an order for TPS54162QPWPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS54162QPWPRQ1 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 TPS54162QPWPRQ1 reliable?
The price and inventory of TPS54162QPWPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54162QPWPRQ1 is usually 5 days.
3.What payment methods are accepted for TPS54162QPWPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54162QPWPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS54162QPWPRQ1?
TPS54162QPWPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS54162QPWPRQ1 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 TPS54162QPWPRQ1?
For technical support, including TPS54162QPWPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54162QPWPRQ1 requirements.
6.How does Aetrix verify that TPS54162QPWPRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS54162QPWPRQ1 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 TPS54162QPWPRQ1 meets industry standards.
7.What is the process for return or replacement of TPS54162QPWPRQ1?
All TPS54162QPWPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS54162QPWPRQ1, 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 TPS54162QPWPRQ1 part is unused and in its original packaging.
Return procedure for TPS54162QPWPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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