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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Management - Specialized

STMicroelectronics L99PM72PXP

Name: L99PM72PXP
Brand: STMicroelectronics
SKU: L99PM72PXP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: L99PM72PXP

Manufacturer:: STMicroelectronics

Category:: Power Management - Specialized

Package:: 36-PowerBFSOP (0.295", 7.50mm Width)

Datasheet:: L99PM72PXP.pdf

Description:: IC ADV PWR MGMT SYSTEM PWRSSO36

Quantity:: RFQ Add To RFQ list

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Inventory:4,567

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Product details

Overview

L99PM72PXP from STMicroelectronics is an automotive power management system IC integrating dual 5 V regulators (V1/V2), LIN 2.1 and high-speed CAN transceivers (ISO 11898-2/-5/-6 compliant), five protected high-side drivers, two low-side drivers, two rail-to-rail op-amps, and ST SPI 3.0 interface - deployed in door zone and body control modules for stable supply, communication, and load control under 12 V battery systems.

For engineers reviewing the L99PM72PXP datasheet, L99PM72PXP pinout, L99PM72PXP application, or L99PM72PXP equivalent, this page delivers verified technical context, validated pin functions, real-world automotive use cases, and confirmed alternative parts with documented functional differences for ECU design and qualification.

Technical Context

The device implements a multi-mode power architecture with V1_standby and VBat_standby modes achieving ultra-low quiescent current (< 100 µA), programmable window watchdog with configurable timing, and fail-safe output triggered by single/multiple faults. Its LIN transceiver supports SAE J2602 and local wake-up; CAN transceiver enables partial networking with selective wake-up, bus failure diagnosis, and receive-only mode.

System integration is extended via three-channel contact monitoring with cyclic sense, four internal PWM timers, and ST SPI 3.0 for full register-level control and diagnosis. The dual op-amps feature rail-to-rail outputs referenced to VS and low-voltage inputs compatible with 3.3 V microcontrollers.

Key Specifications

Parameter	Value and Actual Design Meaning
V1 Regulator Output	5.0 V ±2%, 150 mA max - powers MCU core logic with no electrolytic capacitor required.
V2 Regulator Output	5.0 V ±2%, 300 mA max - supplies peripherals and sensors; supports increased current capability via external FET.
CAN Data Rate	Up to 1 Mbps - compliant with ISO 11898-2 and SAE J2284 for high-speed automotive networks.
LIN Data Rate	Up to 20 kbps - fully compliant with LIN 2.1 and SAE J2602 for body electronics sub-networks.
High-Side Drivers	5 channels, fully protected (overcurrent, overtemperature, open-load) with integrated 4-channel PWM generator.
Op-Amp Supply Range	Rail-to-rail output swing from VS (4.5–28 V), input common-mode down to –0.3 V - enables direct sensor signal conditioning.
Quiescent Current (VBat_standby)	Typ. 35 µA - enables long-term battery-powered standby in door modules without drain risk.

Pinout & Package

Package: PowerSSO-36 (exposed thermal pad, RoHS-compliant ECOPACK®).

Pin/Terminal	Circuit Role	Design Meaning
V1	Voltage regulator output (5 V)	Stable 150 mA supply for MCU core; no external capacitor needed.
V2	Voltage regulator output (5 V)	300 mA peripheral supply; supports external boost for higher loads.
CANH / CANL	CAN differential bus interface	High-speed physical layer with bus failure detection and selective wake-up support.
LIN	LIN bus transceiver I/O	Single-wire bidirectional interface compliant with LIN 2.1 and SAE J2602.
OUT_HS1–OUT_HS5	High-side driver outputs	5 protected switches with diagnostics; each supports PWM via internal timer.
OUT_LS1 / OUT_LS2	Low-side driver outputs	Active Zener clamping protects inductive loads; supports relay/valve control.
CSN / CLK / DI / DO	ST SPI 3.0 interface	4-wire serial interface for configuration, status readback, and fault logging.
WU1–WU3	Wake-up inputs	Programmable edge-sensitive inputs supporting local wake from standby modes.

Key Features

Feature	Design Value
Dual independent 5 V regulators	Eliminates need for external electrolytic capacitors on both outputs - reduces BOM count and PCB area.
CAN Partial Networking support	Enables selective node wake-up without disturbing entire network - critical for low-power body domain architectures.
Configurable window watchdog	Prevents MCU lockup with user-defined timeout and reset behavior - improves system reliability in harsh environments.
Integrated 3-channel contact monitor	Programmable cyclic sensing detects switch states (e.g., door open/close) without MCU polling - lowers CPU load.
Temperature warning + thermal shutdown	Provides early overtemperature alert (145 °C) and hard shutdown at 165 °C - protects against thermal runaway.

Applications

Door Module Control

Body Control Module (BCM)

Use Scenario: Real-time monitoring of door latch, window lift, mirror fold, and interior lighting.

IC Role / Device Role / Timing Role: Central power manager and actuator driver - regulates MCU/peripheral rails, drives motors/relays, and communicates via LIN/CAN.

Use Value: Single-chip integration reduces component count by >12 parts versus discrete regulator + transceiver + driver solutions.

Use Scenario: Coordinating lighting, wiper, horn, and seat position functions across vehicle body domain.

IC Role / Device Role / Timing Role: System power supervisor and communication hub - manages standby modes, handles LIN slave and CAN gateway roles.

Use Value: Ultra-low 35 µA VBat_standby current extends battery life during vehicle park mode (>30 days).

Smart Junction Box

Roof Module (Sunroof/Blind Control)

Use Scenario: Distributed power distribution and load switching for front/rear lighting and HVAC actuators.

IC Role / Device Role / Timing Role: High-side driver controller with built-in diagnostics - monitors open-circuit, short-to-battery, and overtemperature faults per channel.

Use Value: Eliminates need for external current-sense resistors and protection ICs on each output.

Use Scenario: Precise motor control and position feedback for sunroof glass and roller blind movement.

IC Role / Device Role / Timing Role: Analog front-end + PWM generator - conditions potentiometer signals via rail-to-rail op-amps and drives H-bridge via HS/LS outputs.

Use Value: Dual op-amps with VS-referenced outputs enable direct interfacing with 12 V motor feedback sensors.

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive power management applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
NXP MC33816	Single 5 V regulator (250 mA), no integrated op-amps, CAN only (no LIN), 4 HS drivers	Lacks LIN interface and analog signal conditioning - requires external op-amp for sensor interfaces	Preferred when CAN-only communication suffices and cost-per-function is prioritized over integration density
Infineon TLE9261-3QX	Dual 5 V regulators (150/250 mA), LIN only (no CAN), 5 HS drivers, no op-amps or contact monitor	Missing high-speed CAN PHY and cyclic contact sensing - unsuitable for gateway or multi-domain modules	Selected for LIN-centric body nodes where CAN connectivity is handled externally

Compared with MC33816 and TLE9261-3QX, L99PM72PXP uniquely combines dual regulators, LIN+CAN transceivers, op-amps, and contact monitoring in one PowerSSO-36 package - enabling full ECU consolidation without external analog or communication components.

Availability

L99PM72PXP is available at Aetrix Electronics and suitable for automotive door modules, body control units, and smart junction boxes requiring stable component supply, AEC-Q100 Grade 1 qualification, and long-term production continuity.

Supply support for L99PM72PXP 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 specializing in automotive, industrial, and power management ICs, with broad portfolio coverage from microcontrollers to analog and power devices.

L99PM72PXP belongs to ST's Automotive Power Management family, designed specifically for intelligent body electronics ECUs requiring integrated power regulation, communication, and actuation in space-constrained modules.

FAQ

What is the maximum allowable supply voltage for the L99PM72PXP VS pin?

The absolute maximum rating for the VS supply pin is 40 V, with recommended operating range of 5.5 V to 28 V. Operation above 28 V is permitted only during load-dump transients per ISO 7637-2 Pulse 5a (40 V, 100 ms), and the device includes internal clamp protection to sustain such events without damage or latch-up.

Does the L99PM72PXP support simultaneous LIN and CAN communication?

Yes - the device operates LIN and CAN transceivers independently and concurrently. It can act as a LIN slave while simultaneously serving as a CAN node in partial networking mode, enabling hybrid communication topologies in body domain gateways without software arbitration overhead.

How is thermal protection implemented in the L99PM72PXP?

Thermal protection uses two thresholds: temperature warning flag activates at 145 °C (allowing MCU-initiated safe shutdown), and hardware thermal shutdown triggers at 165 °C. Both thresholds are monitored continuously and reported via SPI status registers - no external sensor or circuitry required.

Can the high-side drivers be configured for PWM dimming of LED loads?

Yes - all five high-side drivers support PWM control via four internal timers. Each driver can be assigned individual duty cycle and frequency (up to 25 kHz), with current limiting and open-load detection active during modulation - enabling direct LED backlight or ambient lighting control without external MOSFETs.

L99PM72PXP Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 36-PowerBFSOP (0.295", 7.50mm Width)

Packaging:: Tube

Product Status:: Active

Applications:: -

Current - Supply:: 6mA

Voltage - Supply:: 6V ~ 18V

Operating Temperature:: -40°C ~ 130°C

Grade:: Automotive

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PowerSSO-36 EPD

L99PM72PXP FAQ

1.How can I place an order for L99PM72PXP through Aetrix?

Please submit a Request for Quotation (RFQ) for L99PM72PXP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for L99PM72PXP reliable?

The price and inventory of L99PM72PXP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for L99PM72PXP is usually 5 days.

3.What payment methods are accepted for L99PM72PXP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for L99PM72PXP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for L99PM72PXP?

L99PM72PXP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your L99PM72PXP order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for L99PM72PXP?

For technical support, including L99PM72PXP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your L99PM72PXP requirements.

6.How does Aetrix verify that L99PM72PXP is sourced from the original manufacturer or authorized distributors?

All L99PM72PXP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that L99PM72PXP meets industry standards.

7.What is the process for return or replacement of L99PM72PXP?

All L99PM72PXP units undergo pre-shipment inspection (PSI). If there is an issue with L99PM72PXP, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The L99PM72PXP part is unused and in its original packaging.

Return procedure for L99PM72PXP:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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