LD1117AD2MTR
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STMicroelectronics LD1117AD2MTR

Manufacturer No:
LD1117AD2MTR
Manufacturer:
STMicroelectronics
Package:
Tape & Reel (TR)
Description:
IC REG LINEAR POS ADJ 1A D2PAK
Delivery:
Payment:
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Product Introduction

Overview

The LD1117AD2MTR, produced by STMicroelectronics, is a low drop voltage regulator designed to provide high performance and reliability in various electronic systems. This component is part of the LD1117 series, which includes both fixed and adjustable voltage regulator versions. The LD1117AD2MTR specifically offers a fixed output voltage of 2.5 V, making it suitable for applications requiring stable and efficient voltage regulation.

Key Specifications

Parameter Test Conditions 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 2.55 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) Ta = 25 °C 0.5 % %
Long Term Stability (∆VO) 1000 hrs, TJ = 125 °C 0.3 % %
Operating Input Voltage (Vin) IO = 100 mA 15 V V
Quiescent Current (Id) Vin ≤ 10 V, IO = 0 mA 5 10 mA
Output Current (IO) Vin = 7.5 V, TJ = 25 °C 800 950 1300 mA
Dropout Voltage (Vd) IO = 100 mA 1 1.1 V
Supply Voltage Rejection (SVR) IO = 40 mA, f = 120 Hz, TJ = 25 °C 60 75 dB
Thermal Resistance Junction-Case (RthJC) DPAK 8 °C/W °C/W
Thermal Resistance Junction-Ambient (RthJA) DPAK 100 °C/W °C/W

Key Features

  • Low Dropout Voltage: The LD1117AD2MTR has a low dropout voltage of 1 V typical, ensuring efficient voltage regulation even at low input voltages.
  • High Output Current: It can provide up to 800 mA of output current, making it suitable for a wide range of applications.
  • Fixed Output Voltage: The device offers a fixed output voltage of 2.5 V, with tight tolerance within ±1% at 25 °C.
  • Internal Current and Thermal Limit: Built-in current and thermal limiting protects the device from overcurrent and overheating conditions.
  • High Supply Voltage Rejection: With a supply voltage rejection of 75 dB typical, it provides excellent noise rejection and stability.
  • Compact Packaging: Available in DPAK, SOT-223, and other packages, it offers space-saving advantages while optimizing thermal characteristics.
  • Low Quiescent Current: The quiescent current is typically 5 mA, contributing to overall system efficiency.

Applications

  • Power Supplies: Ideal for use in linear power supplies where low dropout voltage and high current capability are required.
  • Embedded Systems: Suitable for embedded systems, microcontrollers, and other electronic devices needing stable voltage regulation.
  • Automotive Electronics: Can be used in automotive applications due to its robust thermal and current handling capabilities.
  • Industrial Control Systems: Applicable in industrial control systems where reliability and stability are crucial.
  • Consumer Electronics: Used in various consumer electronic devices such as audio equipment, medical devices, and more.

Q & A

  1. What is the maximum output current of the LD1117AD2MTR?

    The maximum output current is up to 800 mA.

  2. What is the typical dropout voltage of the LD1117AD2MTR?

    The typical dropout voltage is 1 V.

  3. What are the available output voltages for the LD1117 series?

    The LD1117 series offers fixed output voltages of 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5.0 V, as well as an adjustable version.

  4. What is the operating temperature range of the LD1117AD2MTR?

    The operating temperature range is from 0 °C to 125 °C.

  5. What is the quiescent current of the LD1117AD2MTR?

    The quiescent current is typically 5 mA.

  6. What is the supply voltage rejection of the LD1117AD2MTR?

    The supply voltage rejection is 75 dB typical.

  7. What packages are available for the LD1117AD2MTR?

    The device is available in DPAK, SOT-223, and other packages.

  8. How does the LD1117AD2MTR protect against overcurrent and overheating?

    It has built-in current and thermal limiting to protect against overcurrent and overheating conditions.

  9. What is the minimum capacitor required for stability?

    A minimum capacitor of 10 µF is required for stability.

  10. Is the LD1117AD2MTR suitable for automotive applications?

    Yes, it is suitable for automotive applications due to its robust thermal and current handling capabilities.

Product Attributes

Output Configuration:Positive
Output Type:Adjustable
Number of Regulators:1
Voltage - Input (Max):15V
Voltage - Output (Min/Fixed):1.25V
Voltage - Output (Max):15V
Voltage Dropout (Max):1.3V @ 1A
Current - Output:1A
Current - Quiescent (Iq):5 mA
Current - Supply (Max):- 
PSRR:80dB (120Hz)
Control Features:- 
Protection Features:Over Current, Over Temperature
Operating Temperature:0°C ~ 125°C
Mounting Type:Surface Mount
Package / Case:TO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Supplier Device Package:D2PAK
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