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Price Comparison for LM5175QPWPTQ1
Details for Texas Instruments


42V Wide Vin Synchronous 4-Switch Buck-Boost Controller
Buy Directly from Texas Instruments (4056 in Stock)
$4.1200 per unit
Series Information for LM5175QPWPTQ1 - Texas Instruments


  • 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 2 u2013 Device CDM ESD Classification Level C4B
  • feature
    Adjustable Switching Frequency
  • feature
    Cycle-by-Cycle Current Limit and Optional Hiccup
  • feature
    Flexible VOUT Range: 0.8 V to 55 V
  • feature
    HTSSOP-28 Package
  • feature
    High Efficiency Buck-Boost Transition
  • feature
    Integrated 2-A MOSFET Gate Drivers
  • feature
    Optional Frequency Sync and Dithering
  • feature
    Optional Input or Output Average Current Limiting
  • feature
    Power Good and Output Overvoltage Protection
  • feature
    Programmable Input UVLO and Soft-Start
  • feature
    Qualified for Automotive Applications
  • feature
    Selectable CCM or DCM with Pulse Skipping
  • feature
    Single Inductor Buck-Boost Controller for Step- Up/Step-Down DC/DC Conversion
  • feature
    VOUT Short Protection
  • feature
    Wide VIN Range: 3.5 V to 42 V, 60 V Maximum


The LM5175-Q1 is a synchronous four-switch buckboost DC/DC controller capable of regulating the output voltage at, above, or below the input voltage. The LM5175-Q1 operates over a wide input voltage range of 3.5 V to 42 V (60 V maximum) to support a variety of applications. The LM5175-Q1 employs current-mode control both in buck and boost modes of operation for superior load and line regulation. The switching frequency is programmed by an external resistor and can be synchronized to an external clock signal. The device also features a programmable soft-start function and offers protection features including cycle-by-cycle current limiting, input undervoltage lockout (UVLO), output overvoltage protection (OVP), and thermal shutdown. In addition, the LM5175-Q1 features selectable Continuous Conduction Mode (CCM) or Discontinuous Conduction Mode (DCM) operation, optional average input or output current limiting, optional spread spectrum to reduce peak EMI, and optional hiccup mode protection in sustained overload conditions.


Supply Voltage Min:
Supply Voltage Max:
No. of Outputs:
1 Output
Duty Cycle (%):
Controller IC Case Style:
No. of Pins:
Switching Frequency:
Synchronous Buck-Boost
Operating Temperature Min:
Operating Temperature Max:
Product Range:
LM5175-Q1 Series
Automotive Qualification Standard:
RoHS Phthalates Compliant:
MSL 3 - 168 hours
No SVHC (27-Jun-2018)

Alternate Descriptions

Avnet America

DC DC Cntrlr Single-OUT Synchronous Boost/Buck Controller 3.5V to 42V 28-Pin HTSSOP EP T/R

Avnet America product

Avnet Europe

DC DC Cntrlr Single-OUT Synchronous Boost/Buck Controller 3.5V to 42V 28-Pin HTSSOP EP T/R

Avnet Europe product

Texas Instruments

42V Wide Vin Synchronous 4-Switch Buck-Boost Controller

Texas Instruments product