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Product Detailed Parameters
- Description：IC REG LIN POS ADJ 600MASSO-12
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：31V
- Voltage - Output (Min/Fixed)：4.9V
- Voltage - Output (Max)：5.1V
- Voltage Dropout (Max)：0.4V @ 200mA
- Current - Output：600mA
- Current - Quiescent (Iq)：220 µA
- Current - Supply (Max)：-
- PSRR：55dB (100Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：12-LSOP (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：PowerSSO-12
- Grade：-
- Qualification：-
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Overview
The L9777A13TR is a monolithic low-dropout linear voltage regulator manufactured by STMicroelectronics, designed for automotive microprocessor systems. It provides a regulated output current of up to 200 mA and operates within an input supply voltage range of 5.6 V to 31 V. The device features a typical quiescent current of 110 μA at zero load and maintains high output voltage precision with a tolerance of 2%. It utilizes a PowerSSO-12 surface-mount package and supports junction temperatures from -40 °C to 150 °C.
Feature Summary
- Integrated reset circuit capable of sensing output voltage down to 1 V with double reset functionality
- VDD tracking regulator switchable via the VDD_EN pin for power management control
- Comprehensive protection against overload, short circuit, and over temperature conditions
- Adjustable reset threshold with external capacitor setting for NMI/reset delay and watchdog frequency
Applications
- Automotive microprocessor system power supplies
- Engine control units (ECU) requiring robust voltage regulation
- Electronic modules operating under severe automotive environmental conditions
Procurement Notes
Verify component authenticity through authorized STMicroelectronics distributors or certified partners. Confirm the specific suffix '13TR' matches the required tape-and-reel packaging configuration. Ensure design compliance with AEC-Q100 standards if applicable to the target automotive application. Review the official datasheet for latest revision notes regarding electrical characteristics and thermal performance specifications.
Selection Notes
Select this component when a single-output LDO with integrated supervisory functions is required for automotive environments. The wide input voltage range accommodates direct battery connection scenarios common in vehicle architectures. Consider the PowerSSO-12 package constraints for PCB layout and thermal dissipation requirements relative to the 200 mA output capability.
Part Context
The L9777 series represents a family of low-power regulators tailored for automotive electronics. The L9777A variant specifically offers 200 mA output capability. This part integrates essential monitoring features like reset generation and watchdog timing directly into the regulator, reducing external component count and board space compared to discrete solutions.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs before considering alternative components from other manufacturers.
