TPS65155RKPR

TPS65155RKPR is a Texas Instruments power-management IC (PMIC) in the TPS65155 family. It is intended for portable displays and backlight applications, delivering multiple regulated rails and LED backlight drive from a single input source. The device integrates switching regulators plus LED current sinks/drivers, with sequencing and protection features to simplify system power-up/power-down. The RKPR suffix indicates packaging: Tape-and-Reel for automated assembly; Pb-free variant.
Key points:
- Efficient buck regulation with multiple adjustable outputs
- LED driver channels for backlighting
- Sequencing and protection (fault/thermal) features
- Compact, easy-to-layout solution for small devices
Typical applications:
- Mobile handheld devices, display backlights, backlight-enabled panels, and similar systems needing coordinated rails and LED control
For exact specs (input range, rail voltages, LED currents, control interface) and reference designs, consult the TPS65155 datasheet. If you’d like, I can summarize the key electrical parameters from the datasheet.

TPS65155RKPR is TI’s multi-rail power-management IC for portable devices. Typical features include:
- Two high-efficiency DC-DC buck regulators with adjustable output voltages
- Additional LDOs for core/system rails
- I2C control with programmable sequencing and wake/reset timing
- Adjustable/programmable rail voltages with feedback options
- Power-on sequencing, voltage ramping, and fault-handling logic
- Protection: UVLO/OVLO, OCP/short-circuit protection, Overtemp/thermal shutdown, latch/reset options
- Low quiescent current and good transient response for battery-powered apps
- System monitoring and status reporting via CTRL/STATUS pins
- Compact RKPR package (RoHS-compliant, QFN style) suitable for small devices
Note: exact rail count, current capabilities, and supported features can vary by revision. For precise specs, please refer to the TI datasheet for TPS65155RKPR or share a link to the exact datasheet.

Pin count: 40 pins (QFN package, RKPR variant).
Function: A multi-output power-management IC (PMIC) for display panels. It includes several DC-DC buck regulators and LDOs with sequencing to generate the display rails (e.g., 1.8V/3.3V) and related control for LCD/backlight applications.

- Manufacturer: Texas Instruments Incorporated (TI)
- What kind of company: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and embedded processing integrated circuits and related products.

TPS65155RKPR is a display power-management IC for LCD/LED backlight and bias generation. Typical application areas include:
- Mobile/portable devices (smartphones, tablets, handhelds)
- LCD/LED display modules in notebooks, monitors, and all-in-one PCs
- LCD backlight driving with LED current regulation
- Display power sequencing rails (bias, gate, logic supplies)
- Automotive and industrial displays requiring compact PMIC solutions
Concise and suitable for integration in display power architectures.

QFN-16 package: 16-pin, 3×3 mm with exposed pad (TPS65155RKPR).