LDL1117S25R
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STMicroelectronics LDL1117S25R

Manufacturer No:
LDL1117S25R
Manufacturer:
STMicroelectronics
Package:
Tape & Reel (TR)
Description:
IC REG LINEAR 2.5V 1.2A SOT223
Delivery:
Payment:
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Product Introduction

Overview

The LDL1117S25R, produced by STMicroelectronics, is a 1.2 A high PSRR (Power Supply Rejection Ratio) low-dropout linear voltage regulator. This device is designed to provide a stable output voltage with a high degree of noise rejection, making it suitable for various applications including consumer electronics, industrial systems, SMPS (Switch-Mode Power Supplies), and DC-DC converter post-regulation.

Key Specifications

ParameterValueUnit
Input Voltage Range2.5 V to 18 VV
Output Voltage (nominal)2.5 VV
Output Current (nominal)1.2 AA
Typical Dropout Voltage350 mV @ 1.2 AmV
Power Supply Rejection Ratio (PSRR)87 dB @ 120 HzdB
Operating Temperature Range-40 °C to 125 °C°C
PackageSOT-223
RoHS Compliance GradeEcopack2

Key Features

  • Input voltage range from 2.5 V to 18 V
  • Guaranteed output current of 1.2 A
  • Typical dropout voltage of 350 mV @ 1.2 A
  • High PSRR of 87 dB @ 120 Hz
  • Internal thermal, current, and power limitation protections
  • Operating temperature range: -40 °C to 125 °C
  • Available in SOT-223 package
  • RoHS compliant (Ecopack2)

Applications

  • Consumer electronics
  • Industrial systems
  • SMPS (Switch-Mode Power Supplies)
  • DC-DC converter post-regulation
  • Motherboard point-of-load (P.O.L.) regulation

Q & A

  1. What is the maximum output current of the LDL1117S25R?
    The maximum output current is 1.2 A.
  2. What is the typical dropout voltage of the LDL1117S25R?
    The typical dropout voltage is 350 mV @ 1.2 A.
  3. What is the input voltage range for the LDL1117S25R?
    The input voltage range is from 2.5 V to 18 V.
  4. What is the PSRR of the LDL1117S25R at 120 Hz?
    The PSRR is 87 dB at 120 Hz.
  5. What are the operating temperature limits for the LDL1117S25R?
    The operating temperature range is from -40 °C to 125 °C.
  6. What type of package is the LDL1117S25R available in?
    The LDL1117S25R is available in the SOT-223 package.
  7. Is the LDL1117S25R RoHS compliant?
    Yes, the LDL1117S25R is RoHS compliant with an Ecopack2 grade.
  8. What protections does the LDL1117S25R have?
    The device includes internal thermal, current, and power limitation protections.
  9. What are some common applications for the LDL1117S25R?
    Common applications include consumer electronics, industrial systems, SMPS, DC-DC converter post-regulation, and motherboard P.O.L. regulation.
  10. How should the input and output capacitors be selected for the LDL1117S25R?
    The device requires an input capacitor of at least 1 μF and an output capacitor with a minimum value of 4.7 μF. Ceramic capacitors with X5R or X7R dielectrics are recommended for stability over the temperature range.

Product Attributes

Output Configuration:Positive
Output Type:Fixed
Number of Regulators:1
Voltage - Input (Max):18V
Voltage - Output (Min/Fixed):2.5V
Voltage - Output (Max):- 
Voltage Dropout (Max):0.6V @ 1.2A
Current - Output:1.2A
Current - Quiescent (Iq):500 µA
Current - Supply (Max):- 
PSRR:87dB ~ 65dB (120Hz ~ 100kHz)
Control Features:- 
Protection Features:Over Current, Over Temperature, Under Voltage Lockout (UVLO)
Operating Temperature:-40°C ~ 125°C (TJ)
Mounting Type:Surface Mount
Package / Case:TO-261-4, TO-261AA
Supplier Device Package:SOT-223
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Similar Products

Part Number LDL1117S25R LDL1117S15R
Manufacturer STMicroelectronics STMicroelectronics
Product Status Active Active
Output Configuration Positive Positive
Output Type Fixed Fixed
Number of Regulators 1 1
Voltage - Input (Max) 18V 18V
Voltage - Output (Min/Fixed) 2.5V 1.5V
Voltage - Output (Max) - -
Voltage Dropout (Max) 0.6V @ 1.2A 0.6V @ 1.2A
Current - Output 1.2A 1.2A
Current - Quiescent (Iq) 500 µA 500 µA
Current - Supply (Max) - -
PSRR 87dB ~ 65dB (120Hz ~ 100kHz) 87dB ~ 65dB (120Hz ~ 100kHz)
Control Features - -
Protection Features Over Current, Over Temperature, Under Voltage Lockout (UVLO) Over Current, Over Temperature, Under Voltage Lockout (UVLO)
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Mounting Type Surface Mount Surface Mount
Package / Case TO-261-4, TO-261AA TO-261-4, TO-261AA
Supplier Device Package SOT-223 SOT-223

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