Texas Instruments TPS65163RGZT

Overview

TPS65163RGZT from Texas Instruments is a highly integrated power management IC (PMIC) for portable systems with single-cell Li-Ion/Li-Polymer batteries. It integrates a 2-A power path manager, linear battery charger (1.5-A max), three 2.25-MHz step-down converters (up to 1.5 A each), two LDOs (200-mA max), wLED boost driver, 10-bit ADC, and touch screen interface - all in a 48-pin VQFN (6 mm × 6 mm) package. It powers OMAP™/AM35xx-based navigation devices and PDAs.

For engineers reviewing the TPS65163RGZT datasheet, TPS65163RGZT pinout, TPS65163RGZT application, or TPS65163RGZT equivalent, key selection criteria include verified power path current capability (2 A), confirmed DCDC output current ratings (1.5 A per rail), validated I²C-controlled wLED dimming, documented thermal regulation and safety timers, and explicit support for touch screen controller interfacing via four analog inputs (AD_IN1–AD_IN4).

Technical Context

The TPS65163RGZT implements a dual-input power path architecture accepting voltage from either AC (wall adapter) or USB sources, dynamically selecting and regulating system supply (SYS) while charging the battery. Its three synchronous buck converters operate at fixed 2.25 MHz with PFM/PWM mode auto-transition, enabling small external magnetics and high light-load efficiency.

Integrated peripherals include a 10-bit ADC with four dedicated touch screen inputs (TSX1/TSX2/TSY1/TSY2), programmable LDO2 with dynamic voltage scaling, and an inductive wLED boost converter supporting up to two LED strings with internal 25-mA current sinks - all coordinated via a register-mapped I²C interface with interrupt-driven status reporting.

Key Specifications

Pinout & Package

The TPS65163RGZT is housed in a 48-pin VQFN package (6.0 mm × 6.0 mm body, 0.4 mm pitch) with an exposed thermal pad connected to PGND. This package enables high thermal performance (R_θJC(bot) = 1 °C/W) and compact PCB layout for space-constrained portable designs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar power management IC applications.

Compared with TPS65163RGZT, TPS65073RSL offers identical integration but fixed OMAP35xx rail voltages and internal sequencing, while TPS65070RSL provides wider LDO flexibility and external sequencing - both require verification of I²C register compatibility and thermal pad layout reuse.

Availability

TPS65163RGZT is available at Aetrix Electronics and suitable for portable navigation systems, OMAP-based handhelds, and Li-ion battery-powered medical devices requiring stable component supply across long production lifecycles.

Supply support for TPS65163RGZT 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 company headquartered in Dallas, Texas, designing and manufacturing analog, embedded processing, and digital signal processing technologies for industrial, automotive, and consumer markets.

The TPS65163RGZT belongs to TI's TPS6507x family of single-chip PMICs engineered specifically for battery-powered portable systems with integrated processors - emphasizing compact power delivery, intelligent charging, and human interface support (touch + backlight).

FAQ

What is the maximum supported input voltage for the TPS65163RGZT power path?

The TPS65163RGZT power path accepts up to 17 V on the AC pin and up to 5.8 V on the USB pin when the battery is connected. With no battery present, the USB input remains limited to 5.8 V, while the AC input can still tolerate 17 V - however, internal overvoltage protection triggers above 6.3 V on SYS, limiting effective usable range to 4.3–5.8 V for safe operation. The TPS65163RGZT must be used with appropriate input filtering and clamping per TI design guidelines.

Does the TPS65163RGZT support I²C-controlled dynamic voltage scaling (DVS)?

Yes, the TPS65163RGZT supports I²C-controlled DVS specifically on LDO2. Through register writes to the LDO_CTRL2 register, the output voltage of VLDO2 can be adjusted in real time across its supported range (e.g., 1.2 V → 1.0 V) to match processor performance states. This capability is documented in Section 10.3 of the TPS65163RGZT datasheet and requires proper I²C initialization and timing compliance.

Can the TPS65163RGZT drive a 4-wire resistive touch screen without external components?

Yes, the TPS65163RGZT integrates a complete 4-wire resistive touch screen controller with four dedicated analog inputs (AD_IN1–AD_IN4), internal 10-bit ADC, and touch detection logic. No external ADC, op-amps, or switch matrices are required - the device directly digitizes X/Y coordinates and asserts INT upon touch detection. This functionality is enabled by default and configured via the TOUCH_CTRL register.

What is the thermal performance of the TPS65163RGZT in its VQFN package?

The TPS65163RGZT in the 48-pin VQFN package has a junction-to-board thermal resistance (R_θJB) of 5.3 °C/W and a junction-to-case (bottom) resistance (R_θJC(bot)) of 1 °C/W when mounted on a standard 4-layer PCB with 1-in² copper pour under the thermal pad. This enables sustained 2-A power path operation at 85°C ambient with ≤125°C junction temperature, provided minimum recommended copper area and via count (≥6× 0.3-mm vias) are implemented.

How does the TPS65163RGZT handle battery charging safety?

The TPS65163RGZT implements multiple hardware-enforced safety mechanisms: thermal regulation reduces charge current above 125°C junction temperature; a programmable safety timer terminates charging after 6 or 12 hours; overvoltage lockout disables charging if battery voltage exceeds 4.4 V; and NTC-based temperature monitoring via the TS pin halts charging outside –10°C to +60°C. All functions operate independently of I²C communication and remain active in shutdown mode.