Texas Instruments TPS2060DRBT

Overview

TPS2060DRBT from Texas Instruments is a dual-channel, current-limited, high-side power-distribution switch featuring two 70-mΩ N-channel MOSFETs, 1.5-A continuous output current per channel, 2.7 V to 5.5 V input voltage range, and active-low enable inputs. It delivers controlled power sequencing and overcurrent protection for USB host ports and hot-plug peripheral modules.

For engineers reviewing the TPS2060DRBT datasheet, TPS2060DRBT pinout, TPS2060DRBT application, or TPS2060DRBT equivalent, key selection criteria include dual-channel independent enable control, deglitched open-drain OC reporting, thermal shutdown at 135°C, reverse current blocking, and compatibility with 2-layer PCB layouts using the DRB-8 PowerPad package.

Technical Context

The TPS2060DRBT integrates two independent high-side N-channel MOSFET switches with internal charge-pump gate drive enabling operation down to 2.7 V. Each channel features dedicated active-low enable (EN1/EN2) and open-drain overcurrent flag (OC1/OC2), with current limiting set between 1.6 A and 2.6 A (typ. 2.1 A) per channel.

It implements undervoltage lockout (UVLO) with 2.0 V turn-on threshold and 75 mV hysteresis, plus thermal shutdown at 135°C with 10°C hysteresis. Fault recovery is automatic after cooling, and OC outputs remain asserted until fault removal - with 4–15 ms deglitch timing to suppress false triggers during inrush.

Key Specifications

Pinout & Package

TPS2060DRBT uses an 8-pin SON (DRB-8) package with exposed PowerPad thermally connected to GND. The package measures 3.0 mm × 3.0 mm × 0.9 mm and supports standard reflow assembly on 2-layer PCBs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel power-switch applications.

Compared with TPS2060DRBT, TPS2064DRBT offers identical performance with reversed enable polarity - ideal for systems with pull-up-driven control lines - while TPS2051BDBVR reduces channel count and removes fault reporting, trading safety for simplicity in single-load applications.

Availability

TPS2060DRBT is available at Aetrix Electronics and suitable for USB host designs, hot-plug peripheral modules, self-powered hub implementations, and embedded subsystem isolation requiring stable component supply and long-term production continuity.

Supply support for TPS2060DRBT 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer applications.

The TPS206x family was designed specifically for USB-compliant power distribution and hot-plug-safe peripheral control - emphasizing integrated current limiting, fault reporting, and robust thermal behavior in compact surface-mount packages.

FAQ

What is the maximum continuous current rating per channel for the TPS2060DRBT?

The TPS2060DRBT supports 1.5 A continuous output current per channel under recommended operating conditions (2.7 V to 5.5 V input, TA ≤ 70°C). Its current-limit threshold is specified from 1.6 A (min) to 2.6 A (max), with a typical value of 2.1 A - ensuring reliable short-circuit handling without external components. This rating applies independently to each of the two channels.

Does the TPS2060DRBT provide reverse current blocking?

Yes, the TPS2060DRBT provides inherent reverse current blocking due to its high-side N-channel MOSFET architecture and integrated body-diode orientation. When the switch is disabled (ENx high), it prevents current flow from OUTx back to IN - critical for hot-unplug scenarios and preventing backfeed in multi-rail systems. This eliminates the need for external blocking diodes in most USB and peripheral applications.

How does the OC (overcurrent) output behave during startup or inrush events?

The OC outputs (OC1/OC2) of the TPS2060DRBT are deglitched with a 4–15 ms timeout to suppress false assertions during normal inrush. They remain high-impedance (open-drain) until a sustained overcurrent condition exceeds the trip threshold for longer than the deglitch window. Once asserted low, OC stays low until the fault is removed and the device recovers - ensuring clean, noise-immune fault signaling to host controllers.

Can the TPS2060DRBT operate from a 3.3-V supply?

Yes, the TPS2060DRBT operates across 2.7 V to 5.5 V, including 3.3-V nominal supplies. At 3.3 V, its rDS(on) increases to ≤115 mΩ (vs. 70 mΩ at 5 V), resulting in ~190 mW conduction loss at 1.5 A - still within thermal limits for DRB-8 on a 2-layer PCB. The internal charge pump maintains sufficient gate drive, and all timing parameters (rise/fall time, UVLO) remain valid per datasheet specifications.

Is a heatsink or thermal pad connection required for the TPS2060DRBT in DRB-8 package?

Yes, the DRB-8 package includes an exposed PowerPad that must be soldered to a GND-connected copper pour for thermal and electrical performance. TI specifies 270 °C/W junction-to-ambient thermal resistance for DRB-8 on a standard 2-layer PCB without vias - meaning thermal design is essential above ~0.8 A continuous per channel. Omitting the PowerPad connection risks thermal shutdown under sustained load and violates UL/CB certification requirements.