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L4977A

L4977A

L4977A

STMicroelectronics

15 Terminals 15V 15-Pin L4977 DC DC Voltage Regulator SWITCHING REGULATOR 1 Outputs 200kHz~500kHz Tube Multiwatt-15 (Vertical, Bent and Staggered Leads)

SOT-23

L4977A Datasheet PDF

non-compliant

Technical Specifications

Parameter NameValue
TypeParameter
Factory Lead Time 6 Weeks
Lifecycle Status NRND (Last Updated: 8 months ago)
Mount Through Hole
Mounting Type Through Hole
Package / Case Multiwatt-15 (Vertical, Bent and Staggered Leads)
Number of Pins 15
Operating Temperature-40°C~150°C TJ
PackagingTube
JESD-609 Code e3
Part StatusActive
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 15
ECCN Code EAR99
Terminal Finish Matte Tin (Sn)
Subcategory Switching Regulator or Controllers
Technology BCDMOS
Terminal Position ZIG-ZAG
Base Part Number L4977
Function Step-Down
Number of Outputs 1
Efficiency 87 %
Voltage - Input (Max) 50V
Output Voltage 40V
Output Type Adjustable
Max Output Current7A
Operating Supply Voltage50V
Voltage - Input (Min) 15V
Input Voltage-Nom 35V
Analog IC - Other Type SWITCHING REGULATOR
Output Configuration Positive
Max Output Voltage40V
Topology Buck
Control Mode VOLTAGE-MODE
Frequency - Switching 200kHz~500kHz
Control Technique PULSE WIDTH MODULATION
Synchronous RectifierNo
Min Output Voltage 5.1V
Height 10.7mm
Length 19.6mm
Width 5mm
RoHS StatusROHS3 Compliant
Lead Free Lead Free
In-Stock:3739 items

L4977A Product Details

L4977A Overview


optimized performance is achieved by utilizing the Tube package in this voltage regulator. Throughout this voltage regulator, there are 15 terminations. As a matter of fact, the type of analog IC that this voltage regulator 12v is equipped with is called SWITCHING REGULATOR. This harley voltage regulator is available in the Multiwatt-15 (Vertical, Bent and Staggered Leads) package for the purpose of space saving. There are 1 outputs configured on this voltage regulator 12v. The adjusting voltage regulator generates Adjustable output. Through Hole-mounting is compatible with this switching regulator. In order for it to operate properly, dc to dc voltage regulator's operating temperature should be at -40°C~150°C TJ. The switching frequency of this DC-DC switching regulator reaches 200kHz~500kHz. A dc to dc voltage regulator's minimum input voltage of 15V is required for this voltage regulator to operate. 50V volts is DC DC switching regulator's maximum input voltage. For operation, switching regulator requires a nominal input voltage of 35V. DC DC switching regulator is part of the Switching Regulator or Controllers subcategory and can be found in the Switching Regulator or Controllers category. As a member of the L4977 family of DC/DC regulators, this is a DC/DC regulator. A voltage of 40V volts can be produced by voltage regulator. In order to operate voltage regulator, 15 pins are required. There should be at least a 5.1V volt output voltage for this switching regulator in order to make it work properly. A 7A A maximum output current is required to meet the switching regulator operation requirements. A maximum voltage of 40V can be obtained from the regulator voltage. DC-DC switching regulator with supply voltage 50V.

L4977A Features


1 outputs
15 pins
Operating supply voltage of 50V

L4977A Applications


There are a lot of STMicroelectronics L4977A Voltage Regulators applications.

  • Energy management systems
  • Terrestrial set-top boxes
  • Experimental setup
  • USB circuits
  • Ball screw pair
  • Pipe bending machines
  • Household control circuits
  • Post equipment
  • Geothermal power
  • Special machining machine tools

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