LEO3910PDT-D

$441.29

Description：IC REG LIN POS ADJ 2A POWERSO-20
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:1b932f3ae38b Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LIN POS ADJ 2A POWERSO-20
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)
Output Configuration：Positive
Output Type：Adjustable
Number of Regulators：1
Voltage - Input (Max)：12V
Voltage - Output (Min/Fixed)：1.23V
Voltage - Output (Max)：9V
Voltage Dropout (Max)：1.5V @ 2A
Current - Output：2A
Current - Quiescent (Iq)：6 mA
Current - Supply (Max)：-
PSRR：50dB (33kHz)
Control Features：Inhibit
Protection Features：Antisaturation, Over Current, Over Temperature
Operating Temperature：-40°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：20-PowerSOIC (0.433", 11.00mm Width)
Supplier Device Package：PowerSO-20
Grade：-
Qualification：-

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LEO3910PDT-D

Overview

The LEO3910PDT-D is a positive adjustable voltage regulator housed in a Power-SO 20 slug-down package, providing up to 2 A output current. It operates with an input voltage from 3 V to 12 V and supports an adjustable output range of 1.23 V to 9 V. The device features a low dropout voltage of 0.35 V at 400 mA and includes overtemperature, overcurrent protection, and an inhibit pin. It is radiation-hardened for LEO environments, offering immunity to 50 krad(Si) total ionizing dose and SEL-free performance up to 62 MeV.cm²/mg.

Feature Summary

Radiation-hardened design compliant with ST's LEO specification for space applications
High thermal dissipation capability via Power-SO 20 slug-down package
Adjustable output voltage with external feedback resistor divider
Integrated overcurrent limitation and overtemperature protection

Applications

LEO satellites power management
Power supply of FPGA, MPU, ASIC, and MCU
Power management in radiative and other harsh environments

Procurement Notes

Verify the specific ordering suffix 'D' corresponds to tape and reel packaging as indicated in the datasheet ordering table. Confirm that the flight model quality level requirements align with the certificate of conformance documentation provided. Ensure the application circuit design accounts for the mandatory minimum capacitor values and stability plan specified for tantalum or equivalent output capacitors.

Selection Notes

Select this component when high current regulation up to 2 A is required in a space-qualified environment. The Power-SO 20 package is suitable for applications needing efficient heat dissipation through the exposed pad. Consider the adjustable output feature if custom voltage levels between 1.23 V and 9 V are necessary. Verify that the input voltage range of 3 V to 12 V matches the system power bus.

Part Context

The LEO3910 series belongs to STMicroelectronics' portfolio of rad-hard plastic products designed for Low Earth Orbit (LEO) missions. These regulators utilize bipolar technology optimized for radiation tolerance and reliability. The product line addresses the need for robust power management solutions that withstand total ionizing dose and single-event effects common in space environments.