STMicroelectronics STMPS2262TTR

Overview

STMPS2262TTR from STMicroelectronics is a dual-channel high-side power distribution switch featuring two 100 mΩ MOSFETs, 1000 mA continuous current per channel, independent active-low enable inputs (EN1/EN2), and open-drain overcurrent fault outputs (OC1/OC2). It operates from 2.7 V to 5.5 V, integrates thermal shutdown at 135 °C, and delivers 2.5 ms typical rise time for controlled hot-swap power sequencing in USB peripherals and industrial I/O modules.

For engineers reviewing the STMPS2262TTR datasheet, STMPS2262TTR pinout, STMPS2262TTR application, or STMPS2262TTR equivalent, key selection criteria include per-channel current limit (1000 mA), fault-blanking timing (10 ms), R_DS(on) (115 mΩ typ. at 5 V), and SO-8 package compatibility with board-level thermal management requirements.

Technical Context

The STMPS2262TTR implements dual independent high-side switches with integrated current-limiting and thermal protection logic. Each channel features dedicated EN input and OC output, enabling discrete control and fault reporting without external supervision circuitry. The device uses internal current-sense amplifiers to trigger constant-current mode during overload, followed by thermal shutdown if junction temperature exceeds 135 °C.

Fault blanking is fixed at 10 ms to suppress transient inrush events during capacitive load insertion, while UVLO (2.5 V threshold) ensures reliable turn-off below minimum operating voltage. Reverse current blocking prevents backflow when the switch is off or unpowered, and CMOS/TTL-compatible inputs support direct interfacing with microcontrollers and FPGA I/O banks.

Key Specifications

Pinout & Package

STMPS2262TTR is housed in an SO-8 surface-mount package (8-pin small outline integrated circuit) with standard 1.27 mm pitch, 5.0 mm × 4.0 mm body, and exposed thermal pad for enhanced PCB heat dissipation. Pin 1 is marked with a dot or notch; the package complies with JEDEC MS-012AC and RoHS directives.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPL92012RGER and TPS2052BDR, STMPS2262TTR uniquely combines dual 1000 mA channels, integrated thermal shutdown, 10 ms fault blanking, and per-channel OC reporting in a single SO-8 package-making it optimal for space-constrained, fault-aware power distribution systems.

Availability

STMPS2262TTR is available at Aetrix Electronics and suitable for USB peripheral power management, industrial I/O module protection, and embedded system power sequencing requiring stable component supply across extended production lifecycles.

Supply support for STMPS2262TTR 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, designing and manufacturing microcontrollers, power management ICs, sensors, and automotive-grade components since 1987.

The STMPS series targets robust power distribution in harsh environments, emphasizing fault resilience, hot-swap readiness, and minimal external component count for industrial, computing, and consumer infrastructure applications.

FAQ

What is the maximum allowable output capacitance for stable startup?

The STMPS2262TTR supports up to 470 µF output capacitance with controlled 2.5 ms typical rise time and no oscillation, verified across 3 V and 5 V input conditions. This enables direct use with large bulk capacitors in USB and industrial power rails without external soft-start circuitry.

How does the 10 ms fault blanking interact with thermal shutdown?

Fault blanking applies only to overcurrent events-not thermal faults. If a short persists beyond 10 ms, OCx asserts low; if that condition causes die temperature to exceed 135 °C, thermal shutdown overrides current limiting and forces immediate channel disable, with automatic recovery after cooling to 125 °C.

Can EN1 and EN2 be tied together for single-input control?

Yes-EN1 and EN2 may be paralleled to drive both channels simultaneously, provided the driving source can sink the combined input leakage (<1 µA total). However, doing so forfeits independent channel control and per-channel fault isolation capabilities.

Is reverse current blocking effective when the IN supply is disconnected?

Yes-the internal MOSFET structure blocks reverse current flow from OUTx to IN even when IN = 0 V, confirmed by ≤2 µA leakage at 5.5 V reverse bias and 125 °C. This protects upstream supplies during maintenance or partial system power-down.