STMicroelectronics STG5592QTR

Overview

STG5592QTR from STMicroelectronics is a high-speed CMOS quad SPDT analog switch optimized for USB 2.0 high-speed (480 Mbps) signal routing in portable systems. It operates from 1.65 V to 5.5 V, delivers 2.75 Ω on-resistance at 5 V, supports 1.8 V logic inputs, and maintains 500 MHz bandwidth across all channels with break-before-make timing.

For engineers reviewing the STG5592QTR datasheet, STG5592QTR pinout, STG5592QTR application, or STG5592QTR equivalent, key selection criteria include its fail-safe logic architecture, ultra-low 0.1 µA quiescent current at 25 °C, ESD-hardened I/O (2000 V HBM), and QFN16L (2.6 × 1.8 mm) footprint compatibility with space-constrained USB interface designs.

Technical Context

This device implements four independent SPDT switches, each controlled by dedicated SEL pins (1-2SEL and 3-4SEL), enabling simultaneous 2:1 multiplexing/demultiplexing per channel pair. Each switch exhibits true break-before-make operation with sub-2 ns delay at 5 V, ensuring signal integrity during state transitions.

Its silicon-gate CMOS process delivers rail-to-rail analog switching capability, low charge injection (≤9.7 pC), and high off-isolation (–74 dB at 1 MHz), making it suitable for bidirectional differential signaling paths where crosstalk and signal degradation must be minimized.

Key Specifications

Pinout & Package

STG5592QTR uses a thermally enhanced QFN16L package (2.6 mm × 1.8 mm, 0.5 mm pitch) with an exposed thermal pad that must be soldered to a floating copper plane - not connected to VCC or GND.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad SPDT analog switch applications.

Compared with TMUX1574RTER and ADG732BRUZ, STG5592QTR uniquely combines USB 2.0–validated AC performance, fail-safe logic, and ultra-low ICC - making it the only choice for space-constrained, high-reliability USB 2.0 switching where signal fidelity and power efficiency are co-critical.

Availability

STG5592QTR is available at Aetrix Electronics and suitable for USB 2.0 hub designs, automotive infotainment systems, and industrial docking stations requiring stable component supply and long-term manufacturability.

Supply support for STG5592QTR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in microcontrollers, power management, analog ICs, and automotive-grade components.

STG5592QTR belongs to ST's high-speed analog switch product line, engineered specifically for USB 2.0, mobile interface, and industrial signal routing applications demanding low Ron, high bandwidth, and robust ESD immunity.

FAQ

What is the maximum recommended PCB trace length for maintaining USB 2.0 signal integrity with STG5592QTR?

For 480 Mbps operation, ST recommends keeping source-to-switch and switch-to-load trace lengths ≤15 mm each, with controlled 90 Ω differential impedance and matched length within ±0.2 mm. This preserves eye opening given the device's 450 MHz bandwidth and <130 ps total jitter specification.

Can STG5592QTR operate with 1.2 V logic control inputs?

No. The minimum VIH is 0.73 V at VCC = 1.65 V, but 1.2 V logic falls below guaranteed switching thresholds across temperature. Valid logic levels require ≥0.8 V at 1.65 V VCC and scale linearly - 1.2 V is insufficient for reliable operation even at room temperature.

Is the exposed thermal pad electrically connected internally?

No. The exposed pad is a thermal slug only, with no internal electrical connection. Per ST's datasheet, it must be soldered to a floating copper plane - connecting it to VCC or GND violates the absolute maximum ratings and risks latch-up or parametric shift.

Does STG5592QTR support bidirectional analog signal routing?

Yes. All S and D pins are fully bidirectional with symmetric Ron and capacitance characteristics (CON = 12 pF enabled, COFF = 5 pF disabled). Signal direction is determined solely by external circuit topology, not device architecture.