LP3855EMP-1.8/NOPB

$2.13

Description：IC REG LIN 1.8V 1.5A SOT-223-5
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:91a4a7e2ab8d Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: Texas Instruments

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Product introduction

LP3855EMP-1.8/NOPB is listed in the Voltage Regulators - Linear, Low Drop Out (LDO) Regulators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC REG LIN 1.8V 1.5A SOT-223-5. Review the specifications below when checking this part for your BOM.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators specifications for LP3855EMP-1.8/NOPB

Description：IC REG LIN 1.8V 1.5A SOT-223-5
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：7V
Voltage - Output (Min/Fixed)：1.8V
Voltage - Output (Max)：-
Voltage Dropout (Max)：0.43V @ 1.5A
Current - Output：1.5A
Current - Quiescent (Iq)：3 mA
Current - Supply (Max)：10 mA
PSRR：73dB ~ 57dB (120Hz)
Control Features：Enable
Protection Features：Over Current, Over Temperature, Short Circuit
Operating Temperature：-40°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：TO-261-5, TO-261AB
Supplier Device Package：SOT-223-5

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators datasheet and documents for LP3855EMP-1.8/NOPB

LP3855EMP-1.8/NOPB

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The LP3855EMP-1.8/NOPB is a fixed-output low-dropout linear regulator manufactured by Texas Instruments. It provides a fixed positive output voltage of 1.8V with a maximum continuous output current of 1.5A. The device utilizes a SOT-223-5 surface-mount package and operates within an extended junction temperature range from -40°C to +125°C. Key electrical specifications include a typical dropout voltage of 240mV at full load and a maximum input supply voltage of 7V. The component features internal protection mechanisms against overcurrent, thermal overload, and short circuits.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

Ultra-low dropout performance for efficient power conversion
Fast transient response capability for dynamic load changes
Integrated thermal and current limiting protection
Stable operation with ceramic output capacitors

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

Portable battery-powered equipment requiring efficient voltage regulation
Cellular phones and personal digital assistants (PDAs)
Laptop computers and peripheral power management
Adaptive supply voltage scaling systems

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the exact part number suffix to ensure the correct output voltage configuration, as the LP3855 series includes both adjustable and fixed variants. Confirm RoHS compliance status and packaging type (reel or cut tape) matches your assembly requirements. Cross-reference the manufacturer's latest datasheet for any updates on recommended external components or application circuit modifications prior to finalizing procurement orders.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a stable 1.8V rail is required with high current capacity in a compact footprint. Ensure the input voltage remains within the 7V maximum limit while accounting for dropout conditions. Verify that the PCB layout supports the thermal dissipation needs of the SOT-223 package under maximum load conditions. Consider the fast transient response if the load current varies rapidly during operation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This device belongs to the LP3855 family of ultra-low-dropout linear regulators designed for high-efficiency applications. The family offers various output voltage options and package types, including SOT-223 and TO-263. The LP3855EMP-1.8/NOPB specifically addresses the need for regulated power in space-constrained portable electronics where battery life and thermal management are critical design constraints.