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5-14V 3A 1ch Buck converter - BD9859EFJ

BD9859EFJ 는 주로 2차측 전원 용도로, 예를 들어 9V 나 12V 등의 고정 전원에서 1.2V/1.8V/3.3V/5V 등의 강압출력을 생성할 수 있습니다. 본 IC 는 750kHz 의 고주파 동작에 의한 외장 코일 / 콘덴서의 소형화, 15V 내압의 정류용 Nch-FET SW 내장, 또 전류 모드 제어에 의한 고속 부하 응답, 간단한 외부 설정 위상 보상 시스템을 채용하여 넓은 범위의 외장 정수에서 소형 전원을 간단하게 생성할 수 있습니다.

* 본 제품은 STANDARD GRADE 제품입니다. 이 제품은 차재 기기의 사용을 권장하지 않습니다.
형명
상태
패키지
포장 수량
최소 포장 단위
포장 사양
RoHS
BD9859EFJ-E2 공급중 HTSOP-J8 2500 2500 Taping Yes
 
사양 :
Grade Standard
ch 1
Integrated FET / Controller Integrated FET
Buck / Boost / Buck-Boost / Inverting Buck
Synchronous / Nonsynchronous Nonsynchronous
Vin1(Min.)[V] 5.0
Vin1(Max.)[V] 14.0
Vout1(Min.)[V] 1.0
Vout1(Max.)[V] 10.5
Iout1(Max.)[A] 3.0
SW frequency(Max.)[MHz] 0.75
Light Load mode No
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
특징 :
  • ・100 mΩ Nch MOSFET 내장
    ・출력전류 3A
    ・발진 주파수 750kHz
    ・피드백 전압 1.0V±1.0%
    ・소프트 스타트 기능 내장
    ・과전류 보호회로, 저입력 오동작 방지회로, 가열 보호회로 내장
    ・EN 단자에 의한 ON/OFF 제어 (스탠바이 전류 0μA Typ.)
    ・패키지 : HTSOP-J8 패키지
 
 
관련 상품
관련 신제품 / 갱신 제품파워 매니지먼트
형명 제품 이름 패키지 Datasheet 유통 재고
BD9G102G-LB 6V to 42V, 0.5A 1ch Simple Buck Converter Integrated FET SSOP6   구입
BD9G201EFJ-M 1ch Buck Converter HTSOP-J8ES   문의
BD9G401EFJ-M 1ch Buck Converter Integrated FET HTSOP-J8ES   구입
BD9227F 6V To 20V, 1A 1ch PWM Buck Converter with an Integrated FET SOP8   구입
BD9G341AEFJ-LB 1ch 강압 스위칭 레귤레이터 HTSOP-J8   구입
BD9G341AEFJ MOSFET 내장 1ch 강압 스위칭 레귤레이터 HTSOP-J8   구입
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기술 정보
Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

Calculation of Power Loss (Synchronous)

This application note describes how to obtain the power loss required to calculate the temperature of a semiconductor device. Temperature control is important to ensuring product reliability.

Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)

This application note introduces a method for easily measuring the phase margin with a Frequency Response Analyzer (FRA) made by NF Corporation.

Resistor Value Table to set Output Voltage of Buck Converter IC

This Application Note offers reference table to easily set resistor values for output voltage with various internal reference voltages VREF.

Snubber Circuit for Buck Converter IC

In buck converter ICs, many high-frequency noises are generated at switch nodes. A snubber circuit provides one way of eliminating such harmonic noise. This application note explains how to set up the RC snubber circuits.

Capacitor Calculation for Buck converter IC

This application note explains the calculation of external capacitor value for buck converter IC circuit.

Inductor Calculation for Buck converter IC

This application note covers the steps required in choosing the inductor and to calculate the value used in buck regulator IC circuits.

Efficiency of Buck Converter

This application note explains power loss factors and methods for calculating them. It also explains how the relative importance of power loss factors depends on the specifications of the switching power source.

The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit

Using unmatched MLCC may not obtain required target characteristics for power supply circuit and may cause abnormal operation. This application note explains the important points while using MLCC.

Considerations for Power Inductors Used for Buck Converters

This application note explains the features and things to consider when shopping for power inductors.