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TEXAS INSTRUMENTS  LM5119PSQE/NOPB  DC/DC Controller, Current Mode, 5.5V to 65V, 2 Outputs, Synchronous Buck, 750kHz, LLP-32

TEXAS INSTRUMENTS LM5119PSQE/NOPB
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Produktų apžvalga

The LM5119PSQE/NOPB is a dual synchronous Buck Controller intended for step-down regulator applications from a high voltage or widely varying input supply. The control method is based upon current-mode control utilizing an emulated current ramp. current-mode control provides inherent line feed-forward, cycle-by-cycle current limiting and ease of loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications. The switching frequency is programmable from 50 to 750kHz. The LM5119 drives external high-side and low-side NMOS power switches with adaptive dead-time control. User-selectable diode emulation mode enables discontinuous mode operation for improved efficiency at light load conditions. A high voltage bias regulator with automatic switch-over to external bias further improves efficiency.
  • Easily configurable for dual outputs or interleaved single output
  • Robust 3.3A Peak gate drive
  • Programmable output from 0.8V
  • Precision 1.5% Voltage reference
  • Programmable current limit
  • Hiccup mode overload protection
  • Programmable soft-start
  • Programmable line under-voltage lockout
  • Automatic switch-over to external bias supply
  • Channel2 enable logic input
  • Thermal shutdown
  • Green product and no Sb/Br
Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

Informacija apie produktą

Supply Voltage Min:
5.5V
Supply Voltage Max:
65V
No. of Outputs:
2 Output
Duty Cycle (%):
98%
Controller IC Case Style:
LLP
No. of Pins:
32Pins
Switching Frequency:
750kHz
Topology:
Synchronous Buck (Step Down)
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 3 - 168 hours
SVHC:
No SVHC (15-Jun-2015)

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Pritaikymas

  • Power Management;
  • Automotive;
  • Industrial;
  • Communications & Networking

Teisinė ir aplinkosaugos informacija

Drėgmės jautrumo lygis:
MSL 3 - 168 hours
Kilmės šalis:
Great Britain

Šalis, kurioje paskutinį kartą gamintojo atliktas stambus gamybos procesas

RoHS suderinamumas:
Taip
Tarifo nr.:
85423190
Svoris (kg):
.000175

Alternatyvos

DC-DC CONVERTER, LLP32

TEXAS INSTRUMENTS

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