LM25119PSQE/NOPB

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Price Comparison for LM25119PSQE/NOPB
Details for Texas Instruments

LM25119PSQE/NOPB

4.5-42V Wide Vin, Current Mode Dual Synchronous Buck Controller
Buy Directly from Texas Instruments (4426 in Stock)
$2.9900 per unit
Series Information for LM25119PSQE/NOPB - Texas Instruments

Features

  • feature
    AEC-Q100 Qualified With the Following Results: u2013 Device Temperature Grade 1: u201340u00b0C to 125u00b0C Ambient Operating Temperature Range u2013 Device HBM ESD Classification Level 1C u2013 Device CDM ESD Classification Level C4A
  • feature
    Automatic Switch-Over to External Bias Supply
  • feature
    Channel2 Enable Logic Input
  • feature
    Easily Configurable for Dual Outputs or Interleaved Single Output
  • feature
    Emulated Peak Current Mode Control
  • feature
    Hiccup Mode Overload Protection
  • feature
    LM25119-Q1 Qualified for Automotive Applications
  • feature
    Leadless 32-Pin WQFN Package
  • feature
    Optional Diode Emulation Mode
  • feature
    Precision 1.5% Voltage Reference
  • feature
    Programmable Current Limit
  • feature
    Programmable Line Undervoltage Lockout
  • feature
    Programmable Output From 0.8 V
  • feature
    Programmable Soft-Start
  • feature
    Robust 3.3-A Peak Gate Drive
  • feature
    Switching Frequency Programmable to 750 kHz
  • feature
    Thermal Shutdown
  • feature
    Wide Operating Range (4.5 V to 42 V)

Description

IC BUCK CNTRL DUAL SYNC 32LLP
The LM25119 device 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 using an emulated current ramp. Current mode control provides inherent line feedforward, cycle-by-cycle current limiting and easeof-loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulsewidth modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications. The switching frequency is programmable from 50 kHz to 750 kHz. The LM25119 drives external high-side and low-side NMOS power switches with adaptive dead-time control. A 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. Additional features include thermal shutdown, frequency synchronization, cycle-by-cycle and hiccup mode current limit and adjustable line undervoltage lockout. The device is available in a power enhanced leadless 32-pin WQFN package featuring an exposed die attach pad to aid thermal dissipation.

Specifications

Supply Voltage Min:
4.5V
Supply Voltage Max:
42V
No. of Outputs:
2Outputs
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
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 3 - 168 hours
SVHC:
No SVHC (27-Jun-2018)
Operating Temperature Range:
-40°C to +125°C
Output Current:
20A
Primary Input Voltage:
42V

Alternate Descriptions

Avnet America

Current Mode PWM Controller 0.8V 20A 32-Pin LLP EP T/R

Avnet America product

Avnet Europe

Current Mode PWM Controller 0.8V 20A 32-Pin LLP EP T/R

Avnet Europe product

Texas Instruments

4.5-42V Wide Vin, Current Mode Dual Synchronous Buck Controller

Texas Instruments product