L79L05ABZ
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STMicroelectronics L79L05ABZ

Manufacturer No:
L79L05ABZ
Manufacturer:
STMicroelectronics
Package:
Bulk
Description:
IC REG LINEAR -5V 100MA TO92-3
Delivery:
Payment:
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Product Introduction

Overview

The L79L05ABZ is a three-terminal negative voltage regulator produced by STMicroelectronics. This component is part of the L79L series, which is designed to provide fixed negative voltage regulation in a variety of applications. The L79L05ABZ is notable for its internal current limiting and thermal shutdown features, making it essentially indestructible. With adequate heat-sinking, it can deliver up to 100 mA of output current. It is often used as a replacement for Zener diode/resistor combinations, offering improved output impedance, lower quiescent current, and reduced noise.

Key Specifications

Parameter Value Unit
Output Voltage -4.8 to -5.2 V
Output Current Up to 100 mA
Operating Temperature Range -40 to 125 °C
Storage Temperature Range -40 to 150 °C
Quiescent Current 6 mA (at TJ = 25 °C) mA
Dropout Voltage 1.7 V
Package Type TO-92
RoHS Compliance Ecopack2
ECCN US EAR99
ECCN EU NEC

Key Features

  • Output current up to 100 mA
  • Output voltage of -5 V
  • Internal current limiting and thermal shutdown for protection
  • No external components required
  • Output tolerance ±4%
  • Low quiescent current and noise
  • Improved output impedance compared to Zener diode/resistor combinations

Applications

The L79L05ABZ is suitable for a wide range of applications, including local or on-card voltage regulation to eliminate noise and distribution problems associated with single-point regulation. It can also be used with power pass elements to create high-current voltage regulators. Other applications include automotive systems, industrial control systems, and any scenario requiring stable negative voltage regulation.

Q & A

  1. What is the output voltage of the L79L05ABZ?

    The output voltage of the L79L05ABZ is -5 V, with a tolerance of ±4%.

  2. What is the maximum output current of the L79L05ABZ?

    The maximum output current of the L79L05ABZ is up to 100 mA.

  3. What are the operating temperature ranges for the L79L05ABZ?

    The operating temperature range for the L79L05ABZ is -40 to 125 °C, and the storage temperature range is -40 to 150 °C.

  4. Does the L79L05ABZ require any external components?

    No, the L79L05ABZ does not require any external components for operation.

  5. What type of protection does the L79L05ABZ have?

    The L79L05ABZ has internal current limiting and thermal shutdown protection.

  6. What is the package type of the L79L05ABZ?

    The L79L05ABZ is available in a TO-92 package.

  7. Is the L79L05ABZ RoHS compliant?

    Yes, the L79L05ABZ is RoHS compliant with an Ecopack2 rating.

  8. What are the ECCN codes for the L79L05ABZ?

    The ECCN US code is EAR99, and the ECCN EU code is NEC.

  9. What are some common applications for the L79L05ABZ?

    The L79L05ABZ is commonly used in automotive systems, industrial control systems, and for local or on-card voltage regulation.

  10. How does the L79L05ABZ compare to Zener diode/resistor combinations?

    The L79L05ABZ offers improved output impedance, lower quiescent current, and reduced noise compared to Zener diode/resistor combinations.

Product Attributes

Output Configuration:Negative
Output Type:Fixed
Number of Regulators:1
Voltage - Input (Max):-30V
Voltage - Output (Min/Fixed):-5V
Voltage - Output (Max):- 
Voltage Dropout (Max):- 
Current - Output:100mA
Current - Quiescent (Iq):5.5 mA
Current - Supply (Max):6 mA
PSRR:49dB (120Hz)
Control Features:- 
Protection Features:Over Temperature, Short Circuit
Operating Temperature:-40°C ~ 125°C
Mounting Type:Through Hole
Package / Case:TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package:TO-92-3
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Similar Products

Part Number L79L05ABZ L79L05ACZ L79L06ABZ L79L05ABD
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Product Status Obsolete Active Obsolete Obsolete
Output Configuration Negative Negative Negative Negative
Output Type Fixed Fixed Fixed Fixed
Number of Regulators 1 1 1 1
Voltage - Input (Max) -30V -30V -30V -30V
Voltage - Output (Min/Fixed) -5V -5V -6V -5V
Voltage - Output (Max) - - - -
Voltage Dropout (Max) - - - -
Current - Output 100mA 100mA 100mA 100mA
Current - Quiescent (Iq) 5.5 mA 5.5 mA 5.5 mA 5.5 mA
Current - Supply (Max) 6 mA 6 mA 6 mA 6 mA
PSRR 49dB (120Hz) 49dB (120Hz) 46dB (120Hz) 49dB (120Hz)
Control Features - - - -
Protection Features Over Temperature, Short Circuit Over Temperature, Short Circuit Over Temperature, Short Circuit Over Temperature, Short Circuit
Operating Temperature -40°C ~ 125°C 0°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C
Mounting Type Through Hole Through Hole Through Hole Surface Mount
Package / Case TO-226-3, TO-92-3 (TO-226AA) TO-226-3, TO-92-3 (TO-226AA) TO-226-3, TO-92-3 (TO-226AA) 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package TO-92-3 TO-92-3 TO-92-3 8-SOIC

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