홈 전원 관리 AC/DC & DC/DC converters (integrated FET)
홈
전원 관리
AC/DC & DC/DC converters (integrated FET)

LM3269

활성

LTE 및 HSPA RF 전원 증폭기용 원활한 전환 벅/부스트 컨버터

지금 주문
데이터시트

LM3269

활성
데이터시트 지금 주문

제품 상세 정보

Iout (max) (A) 0.75 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Topology Buck Type Converter Switching frequency (min) (kHz) 2100 Switching frequency (max) (kHz) 2700 Features Adaptive/Dynamic Voltage Scaling, Enable, Over Current Protection, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO fixed Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 4.2 Rating Catalog Operating temperature range (°C) -30 to 85 Iq (typ) (A) 0.0009
Iout (max) (A) 0.75 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Topology Buck Type Converter Switching frequency (min) (kHz) 2100 Switching frequency (max) (kHz) 2700 Features Adaptive/Dynamic Voltage Scaling, Enable, Over Current Protection, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO fixed Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 4.2 Rating Catalog Operating temperature range (°C) -30 to 85 Iq (typ) (A) 0.0009
DSBGA (YZR) 12 3.9375 mm² 2.25 x 1.75
  • Operates From a Single Li-Ion Cell: 2.7 V to 5.5 V
  • Adjustable Output Voltage: 0.6 V to 4.2 V
  • Automatic PFM or PWM Mode Change
  • 750-mA Maximum Load Capability for
    VBATT ≥ 3 V, VOUT = 3.8 V
  • 2.4-MHz (typical) Switching Frequency
  • Seamless Buck-Boost Mode Transition
  • Fast Output Voltage Transition: 1.4 V to 3 V
    in 10 µs
  • High-Efficiency: 95% typical at VBATT = 3.7 V,
    VOUT = 3.3 V, at 300 mA
  • Input Overcurrent Limit
  • Internal Compensation
  • Operates From a Single Li-Ion Cell: 2.7 V to 5.5 V
  • Adjustable Output Voltage: 0.6 V to 4.2 V
  • Automatic PFM or PWM Mode Change
  • 750-mA Maximum Load Capability for
    VBATT ≥ 3 V, VOUT = 3.8 V
  • 2.4-MHz (typical) Switching Frequency
  • Seamless Buck-Boost Mode Transition
  • Fast Output Voltage Transition: 1.4 V to 3 V
    in 10 µs
  • High-Efficiency: 95% typical at VBATT = 3.7 V,
    VOUT = 3.3 V, at 300 mA
  • Input Overcurrent Limit
  • Internal Compensation

The LM3269 is buck-boost DC-DC converter designed to generate output voltages above or below a given input voltage and is particularly suitable for portable applications powered by a single-cell Li-ion battery.

The LM3269 operates at a 2.4-MHz typical switching frequency in full synchronous operation and provides seamless transitions between buck and boost operating regimes. The LM3269 operates in energy-saving Pulse Frequency Modulation (PFM) mode for increased efficiencies and current savings during low-power RF transmission modes.

The power converter topology needs only one inductor and two capacitors. A unique internal power switch topology enables high overall efficiency.

The LM3269 is internally compensated for buck and boost modes of operation, thus providing an optimal transient response.

When considering using the LM3269 in a system design, please review the layout instructions at the end of this document.

The LM3269 is buck-boost DC-DC converter designed to generate output voltages above or below a given input voltage and is particularly suitable for portable applications powered by a single-cell Li-ion battery.

The LM3269 operates at a 2.4-MHz typical switching frequency in full synchronous operation and provides seamless transitions between buck and boost operating regimes. The LM3269 operates in energy-saving Pulse Frequency Modulation (PFM) mode for increased efficiencies and current savings during low-power RF transmission modes.

The power converter topology needs only one inductor and two capacitors. A unique internal power switch topology enables high overall efficiency.

The LM3269 is internally compensated for buck and boost modes of operation, thus providing an optimal transient response.

When considering using the LM3269 in a system design, please review the layout instructions at the end of this document.
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기술 문서

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모두 보기4
유형 직함 날짜
* Data sheet LM3269 Seamless-Transition Buck-Boost Converter for 3G and 4G RF Power Amplifiers datasheet (Rev. D) PDF | HTML 2015/04/14
Selection guide Power Management Guide 2018 (Rev. R) 2018/06/25
Application note HS Load/Line Transient Jigs and App Rpt for Testing POL Regulators 2013/04/30
User guide LM3269 Evaluation Board 2013/02/28

설계 및 개발

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

패키지 핀 다운로드
DSBGA (YZR) 12 옵션 보기
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

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

지원 및 교육

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포럼 주제 모두 보기(영문)

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