TPS53321RGTR

TPS53321RGTR is a Texas Instruments dual synchronous buck DC–DC converter. It provides two independent, high-efficiency step-down regulators from a single input supply, suitable for creating two rails in compact electronics. Each channel is capable of delivering up to about 1 A (per channel) with outputs set by external feedback resistors. The device includes enable and power-good signals, as well as protection features such as overcurrent/short-circuit protection and thermal shutdown. It supports PWM operation with optional power-save modes for light-load efficiency. The RGTR suffix denotes RoHS-compliant tape-and-reel packaging. Typical applications include mobile devices, embedded controllers, PMIC sub-regulators, and other systems needing two compact, efficient voltage rails from one input.

Direct one-for-one equivalents for TPS53321RGTR aren’t publicly published outside TI. The closest substitutes are other TI devices in the TPS5332x family with the same output/current and similar package. Examples (if specs match): TPS53321, TPS53323, or TPS53325 in similar VSSOP packages. For an exact cross-reference (including non-TI parts), use TI’s Cross Reference tool or share your required output, input range, switching frequency, and package for precise substitutes.

Here are the key features of TPS53321RGTR (Texas Instruments):
- 1-channel synchronous buck DC-DC converter with integrated high- and low-side MOSFETs
- Wide input voltage range (up to about 5.5 V)
- Adjustable output voltage via external feedback resistors
- High efficiency in a small package (8-pin device)
- Enable input for on/off control
- Soft-start and voltage tracking/turn-on sequencing
- Protective functions: undervoltage lockout, overcurrent/short-circuit protection, and thermal shutdown
- Power-good status signal
- Suitable for point-of-load and CPU/core voltage applications
- Packaging: RGTR (tape & reel, RoHS-compliant) 8-pin device
Note: For exact electrical specs (min/max input range, output voltage range, load capability, switching frequency), consult the TI datasheet.

Pin count: 16 pins (QFN package, RGTR variant, with exposed pad).
Function: A single-channel, high-efficiency synchronous buck (step-down) DC-DC regulator with integrated high- and low-side MOSFETs. It provides an adjustable output via feedback resistors and includes typical power-management features such as enable, power-good, soft-start, current limit, and thermal protection.

- Manufacturer: Texas Instruments Incorporated (TI)
- What kind of company: An American multinational technology company that designs and manufactures semiconductors and related integrated circuits (primarily analog and embedded processing ICs).

TPS53321RGTR is a compact, efficient step-down regulator. Primary applications: point-of-load power for FPGAs, DSPs, CPUs/GPUs, and memories; networking equipment (routers, switches, base stations); telecom infrastructure and data-center gear; industrial automation and motor-control systems; portable/consumer electronics; any system needing a small-footprint buck regulator with a wide input range.

TPS53321RGTR comes in an 8-pin VSON package (3×3 mm) with an exposed pad.