L4979D STMicroelectronics, L4979D Datasheet - Page 21

• Manufacturer Part Number: L4979D
• Description: IC VOLTAGE REG LDO SO-8
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L4979D

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 5V
• Current - Output: 150mA
• Voltage - Input: 5.6 ~ 31 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Polarity: Positive
• Input Voltage Max: 31 V
• Output Voltage: 5 V
• Output Type: Fixed
• Dropout Voltage (max): 0.4 V at 150 mA
• Output Current: 300 mA
• Line Regulation: 25 mV
• Load Regulation: 25 mV
• Voltage Regulation Accuracy: 2 %
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Frequency - Switching: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

6
Revision history
Table 15.
01-Feb-2006
01-Jun-2004
01-Oct-2004
04-Apr-2011
01-Jul-2004
Date
Document revision history
Revision
3
4
5
6
7
Changed the values of the parameter “Reset timing high/low threshold.
Pin Connection SO-20 changed. Changed some textes in the Features
and table 2. Changed some values in the tables 3, 4 and 5. Changed
some textes in the sections 2, 3 and 4.
Changed from Product Preview to final datasheet.
Modified the orderable part numbers for Tape & Reel.
Changed document template.
Added
Doc ID 10262 Rev 7
Chapter 4: Package and PCB thermal data
Changes
21/22