Texas Instruments TPS62180YZFR

Overview

TPS62180 from Texas Instruments is an adjustable-output, dual-phase synchronous step-down DC-DC converter delivering up to 6 A continuous output current across two balanced 3-A phases. It operates from 4 V to 15 V input, supports 0.9 V to 6 V output voltage range, achieves ±1% PWM-mode accuracy, and features Automatic Efficiency Enhancement (AEE™) and phase-shifted operation for low-noise POL applications in space-constrained systems.

For engineers reviewing the TPS62180 datasheet, TPS62180 pinout, TPS62180 application, or TPS62180 equivalent, key selection considerations include its 24-bump DSBGA package (2.10 mm × 3.10 mm), dual-phase peak current mode control, 28 µA quiescent current, power good (PG) signal, and soft-start/tracking (SS/TR) functionality - all critical for battery-powered and height-limited embedded designs.

Technical Context

The TPS62180 uses predictive OFF-time peak current mode control with internal compensation, enabling fixed-frequency PWM operation at heavy loads and automatic transition to discontinuous conduction mode (DCM) Power Save Mode at light loads. Its dual-phase architecture employs master-follower topology with 250 ns fixed phase delay in PWM mode, ensuring cycle-by-cycle current balancing within ±10% at full 6-A load without requiring matched inductors.

It integrates undervoltage lockout (3.6 V threshold, 300 mV hysteresis), thermal shutdown (160 °C), hiccup overcurrent protection (0.9 ms on, 5 ms off), and 100% duty cycle operation for ultra-low dropout. The AEE™ feature dynamically adjusts switching frequency to maintain high efficiency across wide VIN/VOUT ratios - especially beneficial for low-VOUT or high-input-ratio conversions where fixed-frequency converters suffer efficiency loss.

Key Specifications

Pinout & Package

The TPS62180 is housed in a 24-bump, 0.5-mm-pitch DSBGA (YZF) package measuring 2.10 mm × 3.10 mm, optimized for low-profile applications. Thermal performance includes R_θJA = 61.5 °C/W and R_θJB = 10.1 °C/W, supporting high-density layouts with minimal heatsinking.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-phase step-down converter applications.

Compared with TPS62182, the TPS62180 provides voltage adjustability at the cost of two external resistors, while TPS62184 trades higher current and input range for increased quiescent current (35 µA) and thermal dissipation - making TPS62180 the preferred choice for compact, flexible, 6-A POL designs.

Availability

TPS62180 is available at Aetrix Electronics and suitable for low-profile point-of-load supplies, NVDC-powered systems, and dual/triple-cell Li-ion battery applications requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for TPS62180 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 decades of expertise in high-efficiency DC-DC conversion.

The TPS6218x family was designed specifically for ultra-thin, high-current POL applications in portable and embedded computing - emphasizing minimal solution size, dual-phase current balancing, and adaptive efficiency across wide input/output ranges.

FAQ

What is the minimum input voltage required for stable operation of the TPS62180?

The TPS62180 has an undervoltage lockout (UVLO) threshold of 3.6 V (typical) with 300 mV hysteresis. Stable operation begins when VIN rises above 3.6 V, and the device remains enabled until VIN falls below 3.3 V. This ensures reliable startup and shutdown behavior across varying battery discharge profiles and unregulated input rails.

How does the TPS62180 achieve current balancing between its two phases?

The TPS62180 uses a master-follower peak current mode architecture where both phases share the same internal reference and cycle-by-cycle peak current setpoint. With a fixed 250 ns delay between phases in PWM mode, it achieves ±10% current matching at full 6-A load - independent of inductor DCR mismatch or PCB routing asymmetry, eliminating need for external current-sense or trimming.

Can the TPS62180 operate with a single inductor or in single-phase mode?

No - the TPS62180 is a dedicated dual-phase controller requiring two separate 1-µH inductors connected to SW1 and SW2. It does not support single-inductor operation or forced single-phase mode; both phases are active in PWM mode, and Power Save Mode may deactivate one phase only under very light loads (typically <500 mA).

What external components are mandatory for basic TPS62180 operation?

Mandatory components include: two 1-µH shielded inductors (SW1/SW2), input capacitors (2 × 22 µF ceramic), output capacitors (2 × 47 µF low-ESR), feedback resistors (for TPS62180 only), a soft-start capacitor on SS/TR, a pull-up resistor on PG, and proper AGND/PGND grounding. No bootstrap capacitors or external compensation networks are required due to internal compensation.

Does the TPS62180 support output voltage tracking during power-up sequencing?

Yes - the SS/TR pin supports voltage tracking: applying a ramping voltage (50 mV to 1.2 V) to SS/TR causes the FB pin to track it with ~0.64× gain, enabling monotonic VOUT ramping that follows an external reference. This allows precise power sequencing with other rails without additional supervisor ICs, and the TPS62180 will start into a pre-biased output safely.