STMicroelectronics L6932H1.2

Overview

L6932H1.2 from STMicroelectronics is an AEC-Q100 qualified ultra-low-dropout linear regulator for automotive power rails, delivering up to 2 A output current with 1.2 V to 5 V adjustable output, 1% regulation accuracy, and 200 mΩ R_DS(on) max. It integrates enable and Power Good functions and operates across 2 V–14 V input range in HSOP-8 package.

For engineers reviewing the L6932H1.2 datasheet, L6932H1.2 pinout, L6932H1.2 application, or L6932H1.2 equivalent, key selection criteria include dropout performance at 2 A load, thermal shutdown hysteresis (20 °C), quiescent current stability (200 µA at any load), and FB-based voltage programming for precision rail generation in engine control units and ADAS modules.

Technical Context

The L6932H1.2 employs an internal 50 mΩ N-channel MOSFET as the pass element, enabling low dropout operation even at full 2 A load. Its feedback loop uses external resistor divider on FB pin to set output voltage, with PGOOD open-drain output asserting low when V_OUT falls below 90% of programmed value.

Current limiting is implemented via internal MOSFET current sensing, fixing upper limit at 2.5 A ±8% at 25 °C. Thermal protection activates at 150 °C junction temperature with 20 °C hysteresis, and shutdown current is specified at 25 µA - critical for always-on automotive subsystems.

Key Specifications

Pinout & Package

HSOP-8 package with exposed thermal pad (D1/E2 variable per leadframe design); 34 °C/W typical R_thJA on standard evaluation board.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-dropout linear regulator applications.

Compared with TLE4275G and TPS7B8750QKVURQ1, the L6932H1.2 uniquely balances 200 µA IQ, 200 mΩ R_DS(on), and full 1.2–5 V adjustability - making it optimal for multi-voltage automotive domains where space, thermal budget, and battery life are co-constrained.

Availability

L6932H1.2 is available at Aetrix Electronics and suitable for engine control units, ADAS camera modules, and infotainment head units requiring stable component supply across automotive production lifecycles.

Supply support for L6932H1.2 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 silicon solutions for automotive, industrial, and consumer markets since 1987.

The L6932H1.2 belongs to ST's automotive-grade linear regulator product line, engineered specifically for robustness in harsh automotive environments - emphasizing AEC-Q100 compliance, wide input range, and thermal resilience under sustained load.

FAQ

What is the minimum input voltage required for regulation at 2 A output?

The L6932H1.2 maintains regulation down to 2 V input, but minimum VIN depends on dropout: at 2 A and 1.2 V output, VIN must exceed 1.2 V + (2 A × 0.2 Ω) = 1.6 V. However, datasheet specifies 2 V minimum to guarantee all specs including line regulation and thermal margin across temperature.

Can the L6932H1.2 be used without the FB resistor divider?

No - the FB pin is mandatory for operation. The device has no fixed-output variant; even the "H1.2" suffix denotes the 1.2 V reference voltage, not a factory-set output. An external resistor divider is required to program VOUT between 1.2 V and 5 V per the equation VOUT = 1.2 V × (1 + R1/R2).

How does the PGOOD pin behave during thermal shutdown?

During thermal shutdown, VOUT collapses, causing PGOOD to assert low (≤0.4 V) as soon as VOUT drops below 90% of its programmed value. PGOOD remains low until VOUT recovers above 90% after thermal recovery - providing direct indication of both overvoltage and overtemperature faults.

Is the HSOP-8 package RoHS and REACH compliant?

Yes - the L6932H1.2 is supplied in ECOPACK®-compliant HSOP-8 packaging, meeting RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. ST's ECOPACK documentation confirms lead-free terminations and halogen-free molding compounds per industry standards.