Texas Instruments TPS63036YFGT

Overview

TPS63036YFGT from Texas Instruments is a non-inverting buck-boost DC-DC converter IC designed for battery-powered portable electronics. It operates from 1.8 V to 5.5 V input, delivers adjustable 1.2 V–5.5 V output, supports up to 1000 mA average input current, features 2.4 MHz fixed-frequency PWM with optional synchronization, and achieves >90% peak efficiency at 3.3 V output. It is used in earbuds, IP cameras, and laser distance meters where input voltage may dip below or rise above regulated output.

For engineers reviewing the TPS63036YFGT datasheet, TPS63036YFGT pinout, TPS63036YFGT application, or TPS63036YFGT equivalent, key selection criteria include its 8-pin WCSP package (1.814 mm × 1.076 mm), average current mode control architecture, power-save mode activation via PS/SYNC pin, and integrated overtemperature/overvoltage protection - all critical for space-constrained, battery-sensitive designs.

Technical Context

The TPS63036YFGT implements an average current mode control topology with input/output voltage feedforward for fast transient response. Its 4-switch synchronous architecture enables seamless automatic transition between buck and boost modes depending on VIN vs. VOUT relationship, eliminating classical buck-boost overlap while minimizing RMS switch/inductor current.

It integrates undervoltage lockout (1.5 V typical threshold), thermal shutdown (140 °C), and load disconnect during shutdown. The FB pin regulates output using a 500 mV internal reference, requiring external resistor divider; PS/SYNC pin controls power-save mode entry (low = enabled) or external clock synchronization (2.2–2.6 MHz range).

Key Specifications

Pinout & Package

TPS63036YFGT uses an 8-pin wafer chip scale package (WCSP) with 0.4 mm pitch, nominal body size 1.814 mm × 1.076 mm, and bottom-side solder balls. Thermal performance is optimized via low RθJB (43.9 °C/W) and RθJC(top) (0.7 °C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS63036YFGT, TPS63020DSJR trades 200 mA input current headroom for slightly lower quiescent current, while MAX77827BEWL+T adds programmability at the cost of interface overhead and larger footprint - making TPS63036YFGT optimal for fixed-output, space-critical, high-efficiency battery regulation.

Availability

TPS63036YFGT is available at Aetrix Electronics and suitable for wireless earbuds, IP network cameras, and laser distance meters requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for TPS63036YFGT 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, specializing in analog, embedded processing, and power management technologies with over 90 years of innovation history.

The TPS63036YFGT belongs to TI's high-efficiency buck-boost converter product line, engineered specifically for ultra-compact, battery-powered portable devices where input voltage varies across the output setpoint and minimal PCB area is available.

FAQ

What is the minimum input voltage required for TPS63036YFGT to start up?

The TPS63036YFGT requires a minimum input voltage of 2.0 V for reliable start-up, though it operates down to 1.8 V once running. This undervoltage lockout (UVLO) threshold has a 200 mV hysteresis - the device resumes operation only when VIN rises above 2.0 V after dropping below 1.8 V. This behavior prevents erratic cycling near battery depletion and is confirmed in Section 6.3 of the SLVSB76B datasheet.

Can TPS63036YFGT regulate a 3.3 V output from a 2.5 V input?

Yes, the TPS63036YFGT can regulate 3.3 V from a 2.5 V input using its boost mode. Its non-inverting buck-boost architecture automatically engages boost operation when VIN falls below VOUT, maintaining regulation without external mode control. Efficiency at this condition is ~87% (per Figure 6 in SLVSB76B), and the device sustains up to 1000 mA average input current - sufficient for typical 3.3 V/300 mA loads.

How does the PS/SYNC pin affect TPS63036YFGT efficiency at light loads?

When PS/SYNC is pulled low, the TPS63036YFGT enters power-save mode below ~100 mA load, reducing switching frequency and quiescent current to maintain >85% efficiency at 1 mA output. When PS/SYNC is high, it forces fixed 2.4 MHz PWM operation, increasing light-load IQ to ~35 µA but improving output voltage ripple and transient response. This trade-off is documented in Section 7.4.4 of the datasheet.

What is the recommended inductor value for TPS63036YFGT in a 3.3 V output design?

Texas Instruments recommends a 1.5 µH inductor for TPS63036YFGT in standard 3.3 V output applications, as validated in the typical application schematic (Figure 4, SLVSB76B). This value balances efficiency (>90%), transient response, and stability - avoiding right-half-plane zero issues while supporting the 1000 mA input current limit. Coilcraft LPS3015-152MLC is a qualified part per Table 1.

Does TPS63036YFGT provide overvoltage protection for the output rail?

Yes, the TPS63036YFGT includes internal overvoltage protection (OVP) that monitors VOUT independently of the FB pin. If feedback is lost (e.g., open R1/R2 divider), the OVP circuit clamps output to a safe threshold (~6.2 V) to protect downstream components. This feature is distinct from regulation and activates even during shutdown, as specified in Section 7.3.2 of the SLVSB76B datasheet.