LM5155QDSSRQ1 The Texas Instruments LM5155QDSSRQ1 is an AEC-Q100 qualified DC DC Switching Controller. It features a wide input voltage range from 1.5V to 45V and supports output voltages up to 300V.
Mfr Part #:

LM5155QDSSRQ1

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LM5155QDSSRQ1 is an AEC-Q100 qualified DC DC Switching Controller. It features a wide input voltage range from 1.5V to 45V and supports output voltages up to 300V.
✓ Total Stock: 2,697 pcs
$ Price Range: $1.19

LM5155QDSSRQ1 Available from 3 distributors

✓ Authorised
✓ Non-Authorised

LM5155QDSSRQ1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Supplier Device Package
Synchronous Rectifier
Topology
Voltage

LM5155QDSSRQ1 Description

Short technical summary and product information.

The Texas Instruments LM5155QDSSRQ1 is an AEC-Q100 qualified DC DC Switching Controller designed for automotive applications. It operates with a wide input voltage range, from 1.5V to 45V, and can provide output voltages up to 300V.

 

This controller supports Boost, Flyback, and SEPIC topologies and features a maximum switching frequency of 2.2 MHz. It includes essential control features such as soft start and adjustable current limit. The device is housed in a 12-WSON package with a surface mount, wettable flank mounting type.

 

Key electrical characteristics include a typical quiescent current of 0.45 mA and a strong 1.5A peak MOSFET driver. The operating temperature range is -40°C to 150°C (TJ), with a specific grade 1 temperature range of -40°C to +125°C (TA). Its design minimizes battery drain and offers input transient protection up to 50V, making it suitable for automotive and portable battery applications.

LM5155QDSSRQ1 Quick Information

Product Type: DC DC Switching Controller
Series: LM5155-Q1
Canonical Name: LM5155QDSSRQ1
Subcategory: Power Management

LM5155QDSSRQ1 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LM5155QDSSRQ1 Estimated Pricing

Qty Low High
1+ $1.19 $1.19

Estimated market price range - modelled values for guidance only, not live distributor offers.

LM5155QDSSRQ1 Features

  • AEC-Q100 qualified for automotive applications.
  • Wide 1.5V to 45V input operating range.
  • Supports Boost, Flyback, and SEPIC topologies.
  • Maximum switching frequency of 2.2 MHz.
  • 12-WSON package with surface mount.

LM5155QDSSRQ1 Applications

  • Suitable for automotive power systems.
  • Ideal for portable battery applications.
  • Used in DC/DC power conversion.
  • Supports start-stop applications.

LM5155QDSSRQ1 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the input voltage range for the LM5155QDSSRQ1?

The input voltage range is 1.5V to 45V.

What is the maximum output voltage of the LM5155QDSSRQ1?

The maximum output voltage is 300V.

What is the operating temperature range for the LM5155QDSSRQ1?

The operating temperature range is -40°C to 150°C (TJ).

What package type is the LM5155QDSSRQ1 available in?

It is available in a 12-WSON (3x2) and a 12-WFDFN Exposed Pad package.

What topologies does the LM5155QDSSRQ1 support?

It supports Boost, Flyback, and SEPIC topologies.

What is the maximum switching frequency of the LM5155QDSSRQ1?

The maximum switching frequency is 2.2 MHz.

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