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L7986TA Fiches technique(PDF) 1 Page - STMicroelectronics

No de pièce L7986TA
Description  3 A step-down switching regulator
Download  43 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L7986TA Fiches technique(HTML) 1 Page - STMicroelectronics

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This is information on a product in full production.
October 2012
Doc ID 022098 Rev 3
1/43
43
L7986TA
3 A step-down switching regulator
Datasheet
production data
Features
3 A DC output current
4.5 V to 38 V input voltage
Output voltage adjustable from 0.6 V
250 kHz switching frequency, programmable
up to 1 MHz
Internal soft-start and enable
Low dropout operation: 100% duty cycle
Voltage feed-forward
Zero load current operation
Overcurrent and thermal protection
HSOP8 package
Guarantee overtemperature range (-40 °C to
125 °C)
Applications
Automotive:
– Car audio, car infotainment
Industrial:
– PLD, PLA, FPGA, chargers
Networking: XDSL, modems, DC-DC modules
Computer:
– Optical storage, hard disk drive, printers
LED driving
Description
The L7986TA is a step-down switching regulator
with 3.7 A (min.) current limited embedded power
MOSFET, so it is able to deliver up to 3 A current
to the load depending on the application
conditions.
The input voltage can range from 4.5 V to 38 V,
while the output voltage can be set starting from
0.6 V to VIN.
Requiring a minimum set of external components,
the device includes an internal 250 kHz switching
frequency oscillator that can be externally
adjusted up to 1 MHz.
The HSOP package with exposed pad allows the
reduction of RthJA down to 40 °C/W.
HSOP8 exposed pad
www.st.com


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