TPS54352PWPRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TPS54352PWPRG4 is a synchronous step-down (buck) PWM switching regulator from Texas Instruments, capable of delivering 3 A output current from a 4.5 V to 20 V input voltage range. It uses voltage-mode control with integrated high-side and low-side MOSFETs, enabling high efficiency across a wide load range. Housed in a 16-pin HTSSOP package, it suits point-of-load power conversion in industrial, communications, and embedded computing systems.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- TPS54352PWPRG4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.8283(MOQ 2000)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS54352PWPRG4?
- 3 A output current with integrated synchronous MOSFETs for high efficiency
- 4.5 V to 20 V input voltage range covering 5 V, 12 V, and 15 V rails
- Voltage-mode PWM control with adjustable switching frequency
- Adjustable output voltage down to 0.891 V reference for flexible rail design
- Cycle-by-cycle current limiting and thermal shutdown for robust protection
- Power-good output flag for sequencing and fault monitoring
- 16-pin HTSSOP package with exposed pad for improved thermal dissipation
What is TPS54352PWPRG4 used for?
The TPS54352PWPRG4 is designed for point-of-load DC-DC conversion in industrial automation controllers, network switches, and telecom line cards where a 12 V bus must be stepped down to 1 V to 5 V rails at 3 A. It also suits embedded computing modules such as single-board computers and FPGA power supplies that need programmable output voltage with tight load regulation. Its wide input range makes it compatible with both 5 V USB power adapters and 12 V–20 V desktop power supplies in battery charger and consumer power designs.
What are the specifications of TPS54352PWPRG4?
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 20V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 6.5A |
| Output Voltage-Max | 1.212V |
| Output Voltage-Min | 1.88V |
| Output Voltage-Nom | 1.2V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 600kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Taiwan |
Where can I find the TPS54352PWPRG4 datasheet?
TPS54352PWPRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS54352PWPRG4?
Compatible alternatives and drop-in replacements for TPS54352PWPRG4:
Switching Regulator, Voltage-mode, 6.5A, 600kHz Switching Freq-Max, BICMOS, PDSO16
Frequently Asked Questions
What input voltage range does the TPS54352PWPRG4 support, and which power rails is it most commonly used with?
The TPS54352PWPRG4 accepts inputs from 4.5 V to 20 V. It is most commonly used on 12 V bus architectures in industrial and communications equipment, where it steps down to lower rails such as 3.3 V, 2.5 V, or 1.8 V at up to 3 A. It also works directly from 5 V USB or wall-adapter supplies for consumer and embedded applications.
How does the synchronous rectification in the TPS54352PWPRG4 improve efficiency compared to diode-based converters?
By replacing the traditional catch diode with an integrated low-side MOSFET, synchronous rectification eliminates the 0.4 V to 0.7 V forward voltage drop that wastes power in diode-based designs. At 3 A output, this saves approximately 1.2 W to 2 W, translating to efficiency gains of 5–10 percentage points at medium loads and significantly reducing heat dissipation in compact enclosures.
How should the switching frequency be set on the TPS54352PWPRG4, and how does it affect inductor sizing?
The switching frequency is set by a resistor connected from the RT pin to ground; selecting frequencies between 100 kHz and 1 MHz allows designers to trade off inductor size against switching losses. Higher frequencies such as 500 kHz or 1 MHz enable smaller inductors in the 2–10 µH range suitable for space-constrained PCBs, while lower frequencies around 200 kHz reduce switching losses and improve efficiency in thermally limited designs.
What protection features are built into the TPS54352PWPRG4 to safeguard downstream circuits?
The device includes cycle-by-cycle peak current limiting, hiccup-mode overload protection, overvoltage protection, and thermal shutdown at approximately 165°C. A power-good output pin signals when the output voltage is within regulation, enabling power sequencing logic. Together these features prevent damage from short circuits, output faults, or excessive junction temperatures without requiring external protection components.
For a 12 V to 3.3 V, 3 A point-of-load converter, what external components does the TPS54352PWPRG4 require?
A typical 12 V to 3.3 V, 3 A design using the TPS54352PWPRG4 requires an output inductor in the 4–6 µH range, an output capacitor of 2×47 µF ceramic, a feedback divider resistor network, an RT frequency-setting resistor, bootstrap capacitor of 100 nF, and input bypass capacitors totalling 10–22 µF. This small external component count fits within a PCB area of roughly 1 cm² for the power stage.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 2000+ | $1.8660 | $3732.00 |
| 4000+ | $1.8283 | $7313.16 |
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