Texas Instruments TPS63000IDRCRQ1

Overview

TPS63000IDRCRQ1 from Texas Instruments is an automotive-grade, single-inductor buck-boost DC/DC converter IC with synchronous 4-switch topology, 1.8-A switch current limit, 1.2 V to 5.5 V adjustable output, and 96% peak efficiency - used in battery-powered infotainment and telematics modules requiring stable 3.3 V at up to 1200 mA from declining Li-ion or alkaline sources.

For engineers reviewing the TPS63000IDRCRQ1 datasheet, TPS63000IDRCRQ1 pinout, TPS63000IDRCRQ1 application, or TPS63000IDRCRQ1 equivalent, key selection criteria include automotive AEC-Q100 qualification, dual-mode automatic buck/boost transition, thermal pad–enabled 3 mm × 3 mm QFN-10 package, and integrated overtemperature/UVLO protection for harsh-ambient embedded power rails.

Technical Context

The TPS63000IDRCRQ1 implements average current-mode control with input/output voltage feed-forward for fast transient response, using four internal N-channel MOSFETs in a fixed-frequency (1.25–1.5 MHz) PWM architecture. It supports forced fixed-frequency operation or external synchronization via PS/SYNC pin with PLL-based clock tolerance.

Its dual-ground architecture separates PGND (power switch return) from GND (control logic reference), minimizing ground shift during high-current switching. Shutdown disconnects load from input, and soft-start limits inrush by ramping current limit from 400 mA to full 1.8 A as output reaches 1.2 V.

Key Specifications

Pinout & Package

TPS63000IDRCRQ1 uses a thermally enhanced 3 mm × 3 mm, 10-pin VSON (DRC) package with exposed thermal pad soldered to PGND for 48.7°C/W θ_JA and 820 mW max power dissipation at 85°C ambient.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar buck-boost converter applications.

Compared with TPS63000IDRCRQ1, TPS63020DSJR offers higher current and frequency in a smaller footprint but omits automotive qualification, while MAX77827BEWC+T adds digital control at the cost of temperature rating and automotive compliance - making TPS63000IDRCRQ1 the sole choice for production automotive power rails demanding AEC-Q100 Grade 1 operation.

Availability

TPS63000IDRCRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, telematics, and ADAS subsystems requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.

Supply support for TPS63000IDRCRQ1 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 technologies with over 50 years of automotive electronics experience.

The TPS63000-Q1 product line delivers high-efficiency, single-inductor buck-boost regulators engineered specifically for automotive battery-powered systems requiring seamless voltage regulation across wide input ranges and harsh thermal environments.

FAQ

What is the maximum output current capability of the TPS63000IDRCRQ1 at 3.3 V output?

The TPS63000IDRCRQ1 delivers up to 1200 mA at 3.3 V in buck mode (VIN = 3.6 V to 5.5 V) and up to 800 mA in boost mode (VIN > 2.4 V). These values are measured under thermal conditions where junction temperature remains within specification; actual sustained current depends on PCB layout, thermal pad soldering, and ambient temperature. The TPS63000IDRCRQ1's 1800 mA typical switch current limit ensures robust overload handling without latch-off.

Does the TPS63000IDRCRQ1 support synchronization to an external clock signal?

Yes, the TPS63000IDRCRQ1 supports external clock synchronization via the PS/SYNC pin. When a logic-level clock signal (1.25–1.8 MHz) is applied, an internal PLL locks to the input frequency, enabling EMI reduction through frequency dithering or alignment with system clocks. The TPS63000IDRCRQ1 tolerates missing pulses without malfunction, and the PS/SYNC pin also serves dual function: pulled low to enable Power Save mode, high to force fixed-frequency operation.

How does the TPS63000IDRCRQ1 handle input voltage dropout or brownout conditions?

The TPS63000IDRCRQ1 incorporates undervoltage lockout (UVLO) with a 1.7 V typical threshold on the VINA pin. If VINA drops below this level during operation, the device shuts down to prevent erratic behavior; it automatically restarts once VINA recovers above the minimum operating voltage (1.9 V). During startup, the TPS63000IDRCRQ1 requires VINA ≥ 1.9 V to initiate regulation, ensuring reliable power-up across battery discharge profiles.

Can the TPS63000IDRCRQ1 be used with a single inductor, and what is the recommended value?

Yes, the TPS63000IDRCRQ1 uses a single inductor connected between L1 and L2 pins. For a 3.3 V output from a Li-ion source (2.5–4.2 V), TI recommends 2.2 µH - selected to balance size, efficiency, and transient response. Inductor value must be ≥1.5 µH and ≤4.7 µH; saturation current rating must exceed the peak inductor current (calculated per datasheet Equations 5–6), typically >2.2 A for 1200 mA output. Validated series include TDK VLF4012 and Coilcraft LPS3015.

Is thermal pad connection mandatory for the TPS63000IDRCRQ1, and how should it be implemented?

Yes, soldering the exposed thermal pad of the TPS63000IDRCRQ1 to a PGND copper plane is mandatory to achieve rated thermal performance (θ_JA = 48.7°C/W) and 820 mW maximum power dissipation. The pad must be connected exclusively to PGND - not GND - and tied to internal PGND pins via multiple thermal vias (≥4, 0.3 mm diameter) filled or capped. Failure to solder the pad results in excessive junction temperature rise and potential thermal shutdown under load.