전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

LM2611

활성

1.4MHz Cuk 컨버터

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 125 Topology CuK, Inverting Type Converter Vin (min) (V) 2.7 Vin (max) (V) 14 Switching frequency (min) (kHz) 1400 Switching frequency (max) (kHz) 1400 Features Light Load Efficiency Vout (min) (V) -32 Vout (max) (V) -1.23 Iq (typ) (µA) 1800 Switch current limit (typ) (A) 1.2
Rating Catalog Operating temperature range (°C) -40 to 125 Topology CuK, Inverting Type Converter Vin (min) (V) 2.7 Vin (max) (V) 14 Switching frequency (min) (kHz) 1400 Switching frequency (max) (kHz) 1400 Features Light Load Efficiency Vout (min) (V) -32 Vout (max) (V) -1.23 Iq (typ) (µA) 1800 Switch current limit (typ) (A) 1.2
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • 1.4-MHz Switching Frequency
  • Low RDS(ON) DMOS FET
  • 1-mVp-p Output Ripple
  • –5 V at 300 mA From 5-V Input
  • Better Regulation Than a Charge Pump
  • Uses Tiny Capacitors and Inductors
  • Wide Input Range: 2.7 V to 14 V
  • Low Shutdown Current: <1 µA
  • 5-Pin SOT-23 Package
  • 1.4-MHz Switching Frequency
  • Low RDS(ON) DMOS FET
  • 1-mVp-p Output Ripple
  • –5 V at 300 mA From 5-V Input
  • Better Regulation Than a Charge Pump
  • Uses Tiny Capacitors and Inductors
  • Wide Input Range: 2.7 V to 14 V
  • Low Shutdown Current: <1 µA
  • 5-Pin SOT-23 Package

The LM2611 is a current mode, PWM inverting switching regulator. Operating from a 2.7-V to 4-V supply, it is capable of producing a regulated negative output voltage of up to &ndash(36 VIN(MAX)). The LM2611 utilizes an input and output inductor, which enables low voltage ripple and RMS current on both the input and the output. With a switching frequency of 1.4 MHz, the inductors and output capacitor can be physically small and low cost. High efficiency is achieved through the use of a low RDS(ON) FET.

The LM2611 features a shutdown pin, which can be activated when the part is not needed to lower the Iq and save battery life. A negative feedback (NFB) pin provides a simple method of setting the output voltage, using just two resistors. Cycle-by-cycle current limiting and internal compensation further simplify the use of the LM2611.

The LM2611 is available as a small 5-pin, SOT-23 package and comes in two grades. Grade A has a 1.2-A current limit and 0.5-Ω RDS(ON), and Grade B has a 0.9-A current limit and 0.7-Ω RDS(ON).

The LM2611 is a current mode, PWM inverting switching regulator. Operating from a 2.7-V to 4-V supply, it is capable of producing a regulated negative output voltage of up to &ndash(36 VIN(MAX)). The LM2611 utilizes an input and output inductor, which enables low voltage ripple and RMS current on both the input and the output. With a switching frequency of 1.4 MHz, the inductors and output capacitor can be physically small and low cost. High efficiency is achieved through the use of a low RDS(ON) FET.

The LM2611 features a shutdown pin, which can be activated when the part is not needed to lower the Iq and save battery life. A negative feedback (NFB) pin provides a simple method of setting the output voltage, using just two resistors. Cycle-by-cycle current limiting and internal compensation further simplify the use of the LM2611.

The LM2611 is available as a small 5-pin, SOT-23 package and comes in two grades. Grade A has a 1.2-A current limit and 0.5-Ω RDS(ON), and Grade B has a 0.9-A current limit and 0.7-Ω RDS(ON).

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기술 자료

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2개 모두 보기
유형 직함 날짜
* Data sheet LM2611 1.4-MHz Cuk Converter datasheet (Rev. J) PDF | HTML 2015/12/31
User guide AN-1203 LM2611 Demoboard (Rev. B) 2013/04/24

설계 및 개발

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평가 보드

LM2611EVAL — 1.4MHz Cuk 컨버터

1.4MHz Cuk Converter

사용 설명서: PDF
TI.com에서 구매 불가
패키지 CAD 기호, 풋프린트 및 3D 모델
SOT-23 (DBV) 5 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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