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LM5013-Q1

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6-V to 100-V input, 3.5-A non-synchronous buck DC/DC converter with ultra-low quiescent current (IQ)

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Data sheet

LM5013-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 3.5 Vin (min) (V) 6 Vin (max) (V) 100 Switching frequency (max) (kHz) 1000 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, UVLO adjustable Control mode Constant on-time (COT) Vout (min) (V) 1.2 Vout (max) (V) 95 Iq (typ) (µA) 14 Duty cycle (max) (%) 97
Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 3.5 Vin (min) (V) 6 Vin (max) (V) 100 Switching frequency (max) (kHz) 1000 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, UVLO adjustable Control mode Constant on-time (COT) Vout (min) (V) 1.2 Vout (max) (V) 95 Iq (typ) (µA) 14 Duty cycle (max) (%) 97
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C, ambient temperature range
  • Functional Safety-Capable
  • Designed for reliable and rugged applications
    • Wide input voltage range of 6 V to 100 V
    • –40°C to +150°C junction temperature range
    • Fixed 3.5-ms internal soft-start timer
    • Peak current-limit protection
    • Input UVLO and thermal shutdown protection
  • Optimized for ultra-low EMI requirements
    • Meets CISPR 25 class 5 standard
  • Suited for scalable automotive power supplies
    • Pin-to-pin compatible with the LM5163-Q1 and LM5164-Q1 (100 V, 0.5 A, or 1 A)
    • 50-ns low minimum on times and off times
    • 10-µA no-load sleep current
    • 3.1-µA shutdown quiescent current
  • Integration reduces solution size and cost
    • COT mode control architecture
    • Integrated 100-V, 0.25-Ω power MOSFET
    • 1.2-V internal voltage reference
    • No loop compensation components
    • Internal VCC bias regulator and boot diode
  • Create a custom regulator design with the LM5013-Q1 using WEBENCH Power Designer
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C, ambient temperature range
  • Functional Safety-Capable
  • Designed for reliable and rugged applications
    • Wide input voltage range of 6 V to 100 V
    • –40°C to +150°C junction temperature range
    • Fixed 3.5-ms internal soft-start timer
    • Peak current-limit protection
    • Input UVLO and thermal shutdown protection
  • Optimized for ultra-low EMI requirements
    • Meets CISPR 25 class 5 standard
  • Suited for scalable automotive power supplies
    • Pin-to-pin compatible with the LM5163-Q1 and LM5164-Q1 (100 V, 0.5 A, or 1 A)
    • 50-ns low minimum on times and off times
    • 10-µA no-load sleep current
    • 3.1-µA shutdown quiescent current
  • Integration reduces solution size and cost
    • COT mode control architecture
    • Integrated 100-V, 0.25-Ω power MOSFET
    • 1.2-V internal voltage reference
    • No loop compensation components
    • Internal VCC bias regulator and boot diode
  • Create a custom regulator design with the LM5013-Q1 using WEBENCH Power Designer

The LM5013-Q1 non-synchronous buck converter is designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on time of 50 ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48-V nominal input to low-voltage rails for reduced system complexity and solution cost. The LM5013-Q1 operates during input voltage dips as low as 6 V, at nearly 100% duty cycle if needed, making it an excellent choice for high-performance 48-V battery automotive applications and MHEV/EV systems.

With integrated high-side power MOSFET, the LM5013-Q1 delivers up to 3.5 A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. Additional features of the LM5013-Q1 include ultra-low IQ operation for high light-load efficiency, innovative peak overcurrent protection, integrated VCC bias supply and bootstrap diode, precision enable and input UVLO, and thermal shutdown protection with automatic recovery. An open-drain PGOOD indicator provides sequencing, fault reporting, and output voltage monitoring.

The LM5013-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in a 8-pin SO PowerPAD™ package. The 1.27-mm pin pitch provides adequate spacing for high-voltage applications.

The LM5013-Q1 non-synchronous buck converter is designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on time of 50 ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48-V nominal input to low-voltage rails for reduced system complexity and solution cost. The LM5013-Q1 operates during input voltage dips as low as 6 V, at nearly 100% duty cycle if needed, making it an excellent choice for high-performance 48-V battery automotive applications and MHEV/EV systems.

With integrated high-side power MOSFET, the LM5013-Q1 delivers up to 3.5 A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. Additional features of the LM5013-Q1 include ultra-low IQ operation for high light-load efficiency, innovative peak overcurrent protection, integrated VCC bias supply and bootstrap diode, precision enable and input UVLO, and thermal shutdown protection with automatic recovery. An open-drain PGOOD indicator provides sequencing, fault reporting, and output voltage monitoring.

The LM5013-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in a 8-pin SO PowerPAD™ package. The 1.27-mm pin pitch provides adequate spacing for high-voltage applications.
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Technical documentation

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Type Title Date
* Data sheet LM5013-Q1 Automotive 100-V Input, 3.5-A Non-Synchronous Buck DC/DC Converter with Ultra-low IQ datasheet PDF | HTML 01 Apr 2022
Application note Controller to Converter – Design Considerations for 24V and 48V Systems PDF | HTML 02 Oct 2024
Application note Optimizing Line and Load Regulation in Automotive, 48-V Battery and eBike Apps PDF | HTML 16 Mar 2023
Application note LM501x Thermals and Example PCB Design PDF | HTML 07 Apr 2022
Functional safety information LM5013-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 16 Mar 2022
User guide LM5013-Q1 EVM User's Guide (Rev. A) PDF | HTML 01 Nov 2021
Certificate LM5013-Q1EVM Declaration of Conformity 09 Mar 2021

Design & development

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Simulation model

LM5013-Q1 PSpice Transient Model

SNVMC97.ZIP (157 KB) - PSpice Model
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Calculation tool

SNVR514 — LM5013-Q1 Design Calculator

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AC/DC & DC/DC converters (integrated FET)
LM5013-Q1 — 6-V to 100-V input, 3.5-A non-synchronous buck DC/DC converter with ultra-low quiescent current (IQ)
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Gerber file

LM5013-Q1EVM Design Files

SNVC246.ZIP (3243 KB)
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