LD1117V25
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STMicroelectronics LD1117V25

Manufacturer No:
LD1117V25
Manufacturer:
STMicroelectronics
Package:
Tube
Description:
IC REG LINEAR 2.5V 800MA TO220AB
Delivery:
Payment:
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Product Introduction

Overview

The LD1117V25, produced by STMicroelectronics, is a low dropout voltage regulator designed to provide a stable output voltage with high efficiency. This regulator is available in both fixed and adjustable versions, with the LD1117V25 specifically offering a fixed output voltage of 2.5V. It is capable of delivering up to 800 mA of output current, making it suitable for a wide range of applications requiring reliable voltage regulation.

The device features an internal current and thermal limit, ensuring safe operation under various load conditions. It is supplied in several package types, including SOT-223, DPAK, SO-8, and TO-220, which optimize thermal characteristics and offer space-saving benefits.

Key Specifications

Parameter Test Condition Min. Typ. Max. Unit
Output Voltage (VO) Vin = 4.5 V, IO = 10 mA, TJ = 25 °C 2.475 2.5 2.525 V
Output Voltage (VO) IO = 0 to 800 mA, Vin = 3.9 to 10 V 2.45 2.5 2.55 V
Line Regulation (∆VO) Vin = 3.9 to 10 V, IO = 0 mA 1 6 mV
Load Regulation (∆VO) Vin = 3.9 V, IO = 0 to 800 mA 1 10 mV
Temperature Stability (∆VO) 0.5 %
Operating Input Voltage (Vin) IO = 100 mA 15 V
Quiescent Current (Id) Vin ≤ 10 V 5 10 mA
Output Current (IO) Vin = 7.5 V, TJ = 25 °C 800 950 1300 mA
Output Noise Voltage (eN) B = 10 Hz to 10 kHz, TJ = 25 °C 100 µV
Supply Voltage Rejection (SVR) IO = 40 mA, f = 120 Hz, TJ = 25 °C, Vin = 5.5 V, Vripple = 1 VPP 60 75 dB
Dropout Voltage (Vd) IO = 100 mA 1 1.1 V

Key Features

  • Low Dropout Voltage: Typical dropout voltage of 1 V, ensuring high efficiency.
  • High Output Current: Capable of delivering up to 800 mA of output current.
  • Fixed Output Voltage: Available with a fixed output voltage of 2.5 V, among other options.
  • Adjustable Version: Also available in an adjustable version with a reference voltage (VREF) of 1.25 V.
  • Internal Current and Thermal Limit: Built-in protection against overcurrent and overheating.
  • High Supply Voltage Rejection: Typical supply voltage rejection of 75 dB.
  • Low Quiescent Current: Quiescent current of 5 to 10 mA.
  • Compact Packages: Available in SOT-223, DPAK, SO-8, and TO-220 packages for optimal thermal performance and space savings.

Applications

  • Power Supplies: Ideal for use in linear power supplies where low dropout voltage is critical.
  • Embedded Systems: Suitable for embedded systems requiring stable and efficient voltage regulation.
  • Industrial Control Systems: Used in industrial control systems where reliable voltage regulation is essential.
  • Consumer Electronics: Applicable in various consumer electronics requiring efficient power management.
  • Automotive Systems: Can be used in automotive systems due to its robust thermal and current limiting features.

Q & A

  1. What is the maximum output current of the LD1117V25?

    The LD1117V25 can deliver up to 800 mA of output current.

  2. What is the typical dropout voltage of the LD1117V25?

    The typical dropout voltage is 1 V.

  3. What are the available package types for the LD1117V25?

    The LD1117V25 is available in SOT-223, DPAK, SO-8, and TO-220 packages.

  4. What is the operating input voltage range for the LD1117V25?

    The operating input voltage range is up to 15 V.

  5. Does the LD1117V25 have built-in protection features?

    Yes, it has internal current and thermal limits for protection.

  6. What is the quiescent current of the LD1117V25?

    The quiescent current is between 5 to 10 mA.

  7. What is the supply voltage rejection of the LD1117V25?

    The typical supply voltage rejection is 75 dB.

  8. Is the LD1117V25 available in an adjustable version?

    Yes, an adjustable version is available with a reference voltage (VREF) of 1.25 V.

  9. What is the output noise voltage of the LD1117V25?

    The output noise voltage is typically 100 µV.

  10. What are some common applications of the LD1117V25?

    Common applications include power supplies, embedded systems, industrial control systems, consumer electronics, and automotive systems.

Product Attributes

Output Configuration:Positive
Output Type:Fixed
Number of Regulators:1
Voltage - Input (Max):15V
Voltage - Output (Min/Fixed):2.5V
Voltage - Output (Max):- 
Voltage Dropout (Max):1.2V @ 800mA
Current - Output:800mA
Current - Quiescent (Iq):10 mA
Current - Supply (Max):- 
PSRR:75dB (120Hz)
Control Features:- 
Protection Features:Over Current, Over Temperature
Operating Temperature:0°C ~ 125°C
Mounting Type:Through Hole
Package / Case:TO-220-3
Supplier Device Package:TO-220
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Similar Products

Part Number LD1117V25 LD1117V25C LD1117AV25 LD1117D25
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Product Status Obsolete Obsolete Obsolete Obsolete
Output Configuration Positive Positive Positive Positive
Output Type Fixed Fixed Fixed Fixed
Number of Regulators 1 1 1 1
Voltage - Input (Max) 15V 15V 15V 15V
Voltage - Output (Min/Fixed) 2.5V 2.5V 2.5V 2.5V
Voltage - Output (Max) - - - -
Voltage Dropout (Max) 1.2V @ 800mA 1.3V @ 800mA 1.3V @ 1A 1.2V @ 800mA
Current - Output 800mA 800mA 1A 800mA
Current - Quiescent (Iq) 10 mA 10 mA 10 mA 10 mA
Current - Supply (Max) - - - -
PSRR 75dB (120Hz) 75dB (120Hz) 80dB (120Hz) 75dB (120Hz)
Control Features - - - -
Protection Features Over Current, Over Temperature Over Current, Over Temperature Over Current, Over Temperature Over Current, Over Temperature
Operating Temperature 0°C ~ 125°C -40°C ~ 125°C 0°C ~ 125°C 0°C ~ 125°C
Mounting Type Through Hole Through Hole Through Hole Surface Mount
Package / Case TO-220-3 TO-220-3 TO-220-3 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package TO-220 TO-220 TO-220 8-SOIC

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