STMicroelectronics STMPS2262MTR

Overview

STMPS2262MTR 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, includes thermal shutdown at 135 °C, undervoltage lockout at 2.5 V (typ.), and 8 kV ESD protection - designed for hot-swap-capable USB ports, industrial I/O modules, and embedded power rail management.

For engineers reviewing the STMPS2262MTR datasheet, STMPS2262MTR pinout, STMPS2262MTR application, or STMPS2262MTR equivalent, key selection criteria include per-channel current limit (1000 mA), R_DS(on) (115 mΩ typ. at 5 V), fault blanking duration (10 ms), reverse current blocking behavior, and SO-8 package thermal resistance (160 °C/W).

Technical Context

The STMPS2262MTR integrates two independent high-side switches with dedicated current-sense and thermal monitoring circuits. Each channel implements constant-current limiting during overload (1.6 A short-circuit current typ.), automatic thermal shutdown with 10 °C hysteresis, and fault-blanked OCx assertion only after ≥10 ms sustained overcurrent - distinguishing transient inrush from hard shorts.

Its CMOS/TTL-compatible EN inputs drive internal driver control units that manage gate turn-on timing (2.5 ms rise time typ.), while reverse current blocking prevents backfeed when the switch is off or unpowered. UVLO ensures reliable disable below 2.0 V (min) to avoid undefined logic states during brownout conditions.

Key Specifications

Pinout & Package

STMPS2262MTR is housed in an SO-8 (Small Outline) package with standard 1.27 mm pitch, 1.75 mm body height, and exposed pad for thermal enhancement (per ST Doc ID 15050 Rev 3, Figure 43). Pin 1 is GND; pins 5 and 8 are open-drain fault outputs; pins 3 and 4 are active-low enable inputs.

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, STMPS2262MTR uniquely delivers dual 1000 mA channels with coordinated thermal/current protection, fault blanking, and reverse blocking - making it the only option qualified for industrial hot-swap and medical sensor isolation where channel independence and fail-safe behavior are mandatory.

Availability

STMPS2262MTR is available at Aetrix Electronics and suitable for USB power delivery, industrial I/O modules, and automotive body control requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for STMPS2262MTR 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, specializing in power management, microcontrollers, and automotive ICs with broad industrial and consumer reach.

The STMPS series targets robust power distribution in harsh environments - engineered specifically for hot-swap-capable systems needing per-channel fault isolation, thermal resilience, and ESD-hardened interfaces.

FAQ

What is the maximum allowable junction temperature before thermal shutdown activates?

The STMPS2262MTR triggers thermal shutdown at 135 °C (typical) junction temperature, with automatic recovery once the die cools to 125 °C due to 10 °C hysteresis. This threshold is specified in Table 8 of ST's Doc ID 15050 Rev 3 and remains valid across the full -40 °C to 85 °C ambient range.

Does STMPS2262MTR support reverse current blocking when the input supply is disconnected?

Yes - when IN is at 0 V or the switch is disabled, the device presents high impedance at OUT1/OUT2, preventing reverse current flow from downstream loads. This behavior is confirmed in Section 3.3 "Reverse current blocking" and validated by leakage current specs: ≤2 µA at 25 °C and ≤10 µA at 125 °C (Table 7).

Can EN1 and EN2 be tied together for simultaneous control of both channels?

Yes - EN1 and EN2 are electrically independent but share identical active-low logic thresholds (V_IL ≤ 0.4 V at 2.7–4.5 V supply). Driving them from a common GPIO or open-collector driver is supported and commonly used for synchronized power-up; no interaction or crosstalk occurs between enable paths.

What is the minimum recommended output capacitor for stable operation with 1000 mA load steps?

ST recommends ≥100 µF ceramic or low-ESR electrolytic output capacitance to limit voltage droop during full-load transients, based on Figure 24–25 (turn-on characteristics with C_LOAD = 100 µF) and application note guidance in Section 7.1. Smaller values (e.g., 1 µF) cause faster rise times but risk overshoot or instability under heavy step loads.