datasheetbank_Logo    Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site
Part Number :
Home  >>>  ST-Microelectronics  >>> E-L4973D3.3-TR PDF

E-L4973D3.3-TR Datasheet PDF - STMicroelectronics

Part NumberE-L4973D3.3-TR ST-Microelectronics
STMicroelectronics ST-Microelectronics
Description3.5A step down switching regulator
E-L4973D3.3-TR Datasheet PDF : E-L4973D3.3-TR pdf   
L4973 image

Description
The L4973 is a step down monolithic power switching regulator delivering 3.5A at fixed voltages of 3.3V or 5.1V and using a simple external divider output adjustable voltage up to 50V. Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical RDS(on) of 0.15Ω) to obtain very high efficiency and very fast switching times. Switching frequency up to 300KHz are achievable (the maximum power dissipation of the packages must be observed).

Features
■ Up to 3.5A step down converter
■ Operating input voltage from 8V to 55V
■ 3.3V and 5.1V (±1%) fixed output, and adjustable outputs from:
   – 0.5V to 50V (3.3 type)
   – 5.1V to 50V (5.1 type)
■ Frequency adjustable up to 300kHz
■ Voltage feed forward
■ Zero load current operation (min 1mA)
■ Internal current limiting (pulse by pulse and HICCUP mode)
■ Precise 5.1V (1.5%) reference voltage externally available
■ Input/output synchronization function
■ Inhibit for zero current consumption (100mA typ. at VCC = 24V)
■ Protection against feedback disconnection
■ Thermal shutdown
■ Output over voltage protection
■ Soft start function

 

Page Links : 1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27 
 

Other manufacturer searches related to E-L4973D3.3-TR

1506I 4.5A, 500kHz Step-Down Switching Regulator 1506I View Linear Technology
SC4517A 1.25MHz, 1.5A Step-Down Switching Regulator SC4517A View Semtech Corporation
BD9122GUL_09 Output 0.5A or Less High Efficiency Step-down Switching Regulator with Built-in Power MOSFET BD9122GUL_09 View ROHM Semiconductor
LM5574 SIMPLE SWITCHER® 75V, 0.5A Step-Down Switching Regulator LM5574 View National ->Texas Instruments
LTC1876 High Efficiency, 2-Phase, Dual Synchronous Step-Down Switching Controller and Step-Up Regulator LTC1876 View Linear Technology
25007SD 42V, 0.5A Step-Down Switching Regulator 25007SD View Texas Instruments
CM3718 1.5A LOW-NOISE PWM STEP-DOWN REGULATOR CM3718 View Unspecified
SC4520 3A Step-Down Switching Regulator with Adjustable Switching Frequency SC4520 View Semtech Corporation
CM3718 1.5A LOW-NOISE PWM STEP-DOWN REGULATOR CM3718 View Champion Microelectronic
LM3100 SIMPLE SWITCHER® Synchronous 1MHz 1.5A Step-Down Voltage Regulator LM3100 View Unspecified

Share Link : 

Language : 한국어   简体中文   日本語   русский   español


All Rights Reserved © datasheetbank.com 2014 - 2018  ] [ Privacy Policy ] [ Request Datasheet  ] [ Contact Us ]