전력 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

LMG5126

활성

출력 전압 추적 기능을 지원하는 42V VIN, 2.5MHz 동기식 GaN 부스트 컨버터

제품 상세 정보

Rating Catalog Topology Boost Vin (max) (V) 42 Vin (min) (V) 2.5 Vout (max) (V) 60 Vout (min) (V) 6 Features Adjustable current limit, Adjustable soft start, Adjustable switching frequency, Analog current monitor, Automatic Light Load Management, Bypass Mode, Chip-enable control pin, Cycle-by-cycle overcurrent protection, External Sync, Fixed PWM Mode, Overcurrent protection with adjustable delay, Power good, Programmable dead time, Spread Spectrum, Tracking EMI features Frequency Dithering, Spread Spectrum Control mode current mode control Switching frequency (min) (kHz) 0.3 Switching frequency (max) (kHz) 2.5 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 1100 Duty cycle (max) (%) 97 Type Converter (Integrated Switch)
Rating Catalog Topology Boost Vin (max) (V) 42 Vin (min) (V) 2.5 Vout (max) (V) 60 Vout (min) (V) 6 Features Adjustable current limit, Adjustable soft start, Adjustable switching frequency, Analog current monitor, Automatic Light Load Management, Bypass Mode, Chip-enable control pin, Cycle-by-cycle overcurrent protection, External Sync, Fixed PWM Mode, Overcurrent protection with adjustable delay, Power good, Programmable dead time, Spread Spectrum, Tracking EMI features Frequency Dithering, Spread Spectrum Control mode current mode control Switching frequency (min) (kHz) 0.3 Switching frequency (max) (kHz) 2.5 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 1100 Duty cycle (max) (%) 97 Type Converter (Integrated Switch)
VQFN-FCRLF (VBT) 22 24.75 mm² 5.5 x 4.5
  • Input voltage 6.5V to 42V
    • Minimum 2.5V for V(BIAS) ≥ 6.5V or VOUT ≥ 6V
  • Output Voltage 6V to 60V
    • 2% accuracy, internal feedback resistors
    • Bypass operation for VI > VOUT
      • Boot refresh out of audio >20kHz
    • Dynamic output voltage tracking
      • Digital PWM tracking (DTRK)
      • Analog tracking (ATRK)
    • Over voltage protection (65V, 50V, 35V, 25V)
  • Low shutdown ISD of 5µA typical (100uA maximum)
  • Low operating IQ of 1.5mA typical (2.5mA maximum)
  • Stacking with interleaved multiphase operation
    • Up to 4-devices without external clock
  • Switching frequency from 300kHz to 2.5MHz
    • Synchronization to external clock (SYNCIN)
    • Spread Spectrum (DRSS)
  • Dynamically selectable switching modes (FPWM, Diode emulation)
  • Current sense resistor or DCR sensing
  • Average inductor current monitor
  • Average input current limit
  • Selectable current limit (29mV or 60mV)
  • Selectable delay time (DLY)
  • Power good indicator
  • Programmable VI undervoltage lockout (UVLO)
  • Lead-less RLF-22 package with wettable flanks
  • Create a custom design using the LMG5126 with the WEBENCH Power Designer
  • Input voltage 6.5V to 42V
    • Minimum 2.5V for V(BIAS) ≥ 6.5V or VOUT ≥ 6V
  • Output Voltage 6V to 60V
    • 2% accuracy, internal feedback resistors
    • Bypass operation for VI > VOUT
      • Boot refresh out of audio >20kHz
    • Dynamic output voltage tracking
      • Digital PWM tracking (DTRK)
      • Analog tracking (ATRK)
    • Over voltage protection (65V, 50V, 35V, 25V)
  • Low shutdown ISD of 5µA typical (100uA maximum)
  • Low operating IQ of 1.5mA typical (2.5mA maximum)
  • Stacking with interleaved multiphase operation
    • Up to 4-devices without external clock
  • Switching frequency from 300kHz to 2.5MHz
    • Synchronization to external clock (SYNCIN)
    • Spread Spectrum (DRSS)
  • Dynamically selectable switching modes (FPWM, Diode emulation)
  • Current sense resistor or DCR sensing
  • Average inductor current monitor
  • Average input current limit
  • Selectable current limit (29mV or 60mV)
  • Selectable delay time (DLY)
  • Power good indicator
  • Programmable VI undervoltage lockout (UVLO)
  • Lead-less RLF-22 package with wettable flanks
  • Create a custom design using the LMG5126 with the WEBENCH Power Designer

The LMG5126 is a stackable multiphase synchronous boost converter. The device provides a regulated output voltage for lower or equal input voltage also supporting VI to VOUT bypass mode to save power. Up to 4 devices can be stacked with or without external clock.

VOUT can be dynamically programmed using the digital or analog ATRK/DTRK function. VI can be as low as 2.5V after startup as the internal VCC supply is automatically switched from VBIAS to VOUT for VBIAS < 6.5V. The fixed switching frequency is set between 300kHz and 2.5MHz via a resistor on the RT-pin or the SYNCIN clock. The switching modes FPWM or Diode emulation can be changed during operation.

The implemented protections peak current limit, average input current limit, 120% input current limit, average inductor current monitor, over- and undervoltage protection or the thermal shutdown protect the device and the application.

The LMG5126 is a stackable multiphase synchronous boost converter. The device provides a regulated output voltage for lower or equal input voltage also supporting VI to VOUT bypass mode to save power. Up to 4 devices can be stacked with or without external clock.

VOUT can be dynamically programmed using the digital or analog ATRK/DTRK function. VI can be as low as 2.5V after startup as the internal VCC supply is automatically switched from VBIAS to VOUT for VBIAS < 6.5V. The fixed switching frequency is set between 300kHz and 2.5MHz via a resistor on the RT-pin or the SYNCIN clock. The switching modes FPWM or Diode emulation can be changed during operation.

The implemented protections peak current limit, average input current limit, 120% input current limit, average inductor current monitor, over- and undervoltage protection or the thermal shutdown protect the device and the application.

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기술 자료

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2개 모두 보기
유형 직함 날짜
* Data sheet LMG5126 Wide-Input, 2.5MHz, Boost Converter datasheet (Rev. A) PDF | HTML 2025/12/09
Certificate LMG5126EVM EU Declaration of Conformity (DoC). 2025/09/08

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

LMG5126EVM — LMG5126 평가 모듈

LMG5126 평가 모듈(EVM)은 LMG5126의 넓은 입력 전압 동기식 GaN 부스트 컨버터의 기능과 성능을 보여줍니다. 이 EVM은 구성이 용이하도록 설계되어 사용자가 동일한 모듈에서 다양한 애플리케이션을 평가할 수 있습니다. 표준 구성은 24V의 조정 출력 전압과 400kHz에서 스위칭을 제공하도록 설계되었습니다. 출력 전압은 ATRK, DTRK 핀을 통해 동적으로 조정할 수 있습니다.

사용 설명서: PDF | HTML
계산 툴

LMG5126-CALC LMG5126 quick start calculator

LMG5126 quick start calculator helps on design of the power stage, component selection and loop compensation.
지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨버터(통합 FET)
LMG5126 출력 전압 추적 기능을 지원하는 42V VIN, 2.5MHz 동기식 GaN 부스트 컨버터
하드웨어 개발
평가 보드
LMG5126EVM LMG5126 평가 모듈
레퍼런스 디자인

PMP31404 — 3V to 42V synchronous GaN boost converter reference design

The reference design is designed for high boost factor and high efficiency. The design operates over a wide input voltage range, starting from 3V using the LMG5126 boost converter with integrated Gallium Nitride (GaN) field-effect transistors (FETs). The reference design includes features such as (...)
Test report: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
VQFN-FCRLF (VBT) 22 Ultra Librarian

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

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