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Reguladores conmutados CC/CC
Convertidores de CC/CC

LM5012

ACTIVO

Convertidor CC/CC reductor no síncrono de 6 V a 100 V de entrada y 2.5 A con IQ ultrabaja

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LM5012

ACTIVO
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Detalles del producto

Rating Catalog Topology Buck Iout (max) (A) 2.5 Vin (max) (V) 100 Vin (min) (V) 6 Vout (max) (V) 95 Vout (min) (V) 1.2 Switch current limit (typ) (A) 2.5 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) Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000014 Duty cycle (max) (%) 97 TI functional safety category Functional Safety-Capable
Rating Catalog Topology Buck Iout (max) (A) 2.5 Vin (max) (V) 100 Vin (min) (V) 6 Vout (max) (V) 95 Vout (min) (V) 1.2 Switch current limit (typ) (A) 2.5 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) Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000014 Duty cycle (max) (%) 97 TI functional safety category Functional Safety-Capable
HSOIC (DDA) 8 29.4 mm² (4.9 mm × 6 mm)
  • Designed for reliable and rugged applications
    • Wide input voltage range of 6 V to 100 V
    • –40°C to +125°C junction temperature range
    • Fixed 3-ms internal soft-start timer
    • Peak current-limit protection
    • Input UVLO and thermal shutdown protection
  • Functional Safety-Capable
  • Optimized for ultra-low EMI requirements
    • Meets CISPR 25 Class 5 standard
  • Suited for scalable industrial power supplies
    • Pin-to-pin compatible with the LM5163 and LM5164 (100 V, 0.5 A or 1 A), and LM5013-Q1 (100 V, 3.5A)
    • 50-ns low minimum on and off times
    • Diode emulation for high light-load efficiency
    • 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 using WEBENCH Power Designer
  • Designed for reliable and rugged applications
    • Wide input voltage range of 6 V to 100 V
    • –40°C to +125°C junction temperature range
    • Fixed 3-ms internal soft-start timer
    • Peak current-limit protection
    • Input UVLO and thermal shutdown protection
  • Functional Safety-Capable
  • Optimized for ultra-low EMI requirements
    • Meets CISPR 25 Class 5 standard
  • Suited for scalable industrial power supplies
    • Pin-to-pin compatible with the LM5163 and LM5164 (100 V, 0.5 A or 1 A), and LM5013-Q1 (100 V, 3.5A)
    • 50-ns low minimum on and off times
    • Diode emulation for high light-load efficiency
    • 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 using WEBENCH Power Designer

The LM5012 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 LM5012 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 industrial applications.

With integrated high-side power MOSFET, the LM5012 delivers up to 2.5 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 LM5012 include ultra-low IQ and a 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 LM5012 is available in a 8-pin SO PowerPAD™ integrated circuit package. The device 1.27-mm pin pitch provides adequate spacing for high-voltage applications.

The LM5012 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 LM5012 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 industrial applications.

With integrated high-side power MOSFET, the LM5012 delivers up to 2.5 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 LM5012 include ultra-low IQ and a 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 LM5012 is available in a 8-pin SO PowerPAD™ integrated circuit package. The device 1.27-mm pin pitch provides adequate spacing for high-voltage applications.
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Documentación técnica

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* Hoja de datos LM5012 100-V Input, 2.5-A Non-Synchronous Buck DC/DC Converter With Ultra-low IQ datasheet PDF | HTML 12/10/2022
Nota sobre la aplicación Power Supply Designs for eBike That Meet the New GB42295 National Standard 10/07/2025
Nota sobre la aplicación Optimizing Line and Load Regulation in Automotive, 48-V Battery and eBike Apps PDF | HTML 16/03/2023
Información sobre seguridad funcional LM5012 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 16/09/2022

Diseño y desarrollo

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Placa de evaluación

LM5013-Q1EVM — Módulo de evaluación LM5013-Q1 de convertidor DC/DC reductor no síncrono con entrada de 100 V y 3.5 

El EVM LM5013-Q1EVM es un regulador reductor CC/CC de 100 V que emplea rectificación síncrona para lograr una alta eficiencia de conversión en un tamaño reducido. El EVM funciona en un amplio rango de tensión de entrada de 15 V a 100 V para proporcionar una salida regulada de 12 V a una frecuencia (...)
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