LDR2533PT-R

$0.65

Description：IC REG LINEAR 2.5/3.3V PPAK
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR)

SKU:49a70cf124a4 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR 2.5/3.3V PPAK
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR)
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：2
Voltage - Input (Max)：15V
Voltage - Output (Min/Fixed)：2.5V, 3.3V
Voltage - Output (Max)：-
Voltage Dropout (Max)：0.8V @ 1A
Current - Output：500mA, 1A
Current - Quiescent (Iq)：50 µA
Current - Supply (Max)：1.6 mA
PSRR：70dB (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-252-5, DPAK (4 Leads + Tab), TO-252AD
Supplier Device Package：PPAK
Grade：-
Qualification：-

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LDR2533PT-R

Overview

The LDR2533PT-R is a very low drop dual voltage regulator manufactured by STMicroelectronics. It provides two fixed output voltages: Output 1 at 2.5 V with a maximum current of 500 mA, and Output 2 at 3.3 V with a maximum current of 1.0 A. The device features a dropout voltage of 0.3 V for the first channel and 0.4 V for the second channel under rated load conditions. It operates within an input voltage range up to 15 V and includes logic-controlled electronic shutdown capabilities for each regulator. The unit is housed in a PPAK package.

Feature Summary

Dual-channel architecture providing independent 2.5 V and 3.3 V outputs
Logic-controlled electronic shutdown function compatible with TTL levels
Internal thermal and current limiting protection mechanisms
Stable operation with low value and low ESR output capacitors

Applications

Personal Digital Assistants (PDA)
Microdrive systems
Data storage applications
Consumer monitors
Set-top-boxes

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches the required package variant. Check for RoHS compliance status as indicated on the packaging label. Ensure the part number corresponds to the exact voltage configuration needed for the design. Review the datasheet revision history for any updates to electrical characteristics.

Selection Notes

Select this component when designing circuits requiring simultaneous 2.5 V and 3.3 V rails from a single supply. Consider the low dropout characteristics for efficiency in battery-powered devices. Evaluate the thermal resistance data if operating near maximum current limits. Verify that the external capacitor values meet the stability requirements specified in the electrical characteristics table.

Part Context

This device belongs to the LDR1833/LDR2533 family of very low drop dual voltage regulators. It shares architectural similarities with the LDR1833 but offers different fixed output voltages tailored for specific digital logic levels. The family utilizes high-voltage technology suitable for consumer electronics environments.