홈 전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)
홈
전원 관리
AC/DC 및 DC/DC 컨버터(통합 FET)

LM3242

활성

6MHz, 750mA 미니어처, 적응형, 스텝다운 DC-DC 컨버터(바이패스 지원)

지금 주문
데이터 시트

LM3242

활성
데이터 시트 지금 주문

제품 상세 정보

Rating Catalog Operating temperature range (°C) -30 to 90 Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 5700 Switching frequency (max) (kHz) 6300 Features Fixed Output Control mode Voltage mode Vout (min) (V) 0.4 Vout (max) (V) 3.6 Iq (typ) (µA) 60 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -30 to 90 Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 5700 Switching frequency (max) (kHz) 6300 Features Fixed Output Control mode Voltage mode Vout (min) (V) 0.4 Vout (max) (V) 3.6 Iq (typ) (µA) 60 Duty cycle (max) (%) 100
DSBGA (YFQ) 9 1.96000000000000028000000000000001 mm² 1.4000000000000001 x 1.4000000000000001
  • 2.7-V to 5.5-V Input Voltage Operating From
    Single Li-Ion Cell
  • 6-MHz (typical) PWM Switching Frequency
  • 0.4-V to 3.6-V Adjustable Output Voltage
  • 750-mA Maximum Load Capability
    (up to 1 A in Bypass)
  • High Efficiency (95% typical at 3.9 VIN,
    3.3 VOUT at 500 mA)
  • Automatic ECO/PWM/BP Mode Change
  • Current Overload Protection
  • Thermal Overload Protection
  • Soft-Start Function
  • Small Chip Inductor in 0805 (2012) case size
  • 2.7-V to 5.5-V Input Voltage Operating From
    Single Li-Ion Cell
  • 6-MHz (typical) PWM Switching Frequency
  • 0.4-V to 3.6-V Adjustable Output Voltage
  • 750-mA Maximum Load Capability
    (up to 1 A in Bypass)
  • High Efficiency (95% typical at 3.9 VIN,
    3.3 VOUT at 500 mA)
  • Automatic ECO/PWM/BP Mode Change
  • Current Overload Protection
  • Thermal Overload Protection
  • Soft-Start Function
  • Small Chip Inductor in 0805 (2012) case size

The LM3242 is a DC-DC converter optimized for powering RF power amplifiers (PAs) from a single lithium-ion cell; however, it may be used in many other applications. It steps down an input voltage from 2.7 V to 5.5 V to an adjustable output voltage from 0.4 V to 3.6 V. Output voltage is set using a VCON analog input for controlling power levels and efficiency of the RF PA.

The LM3242 offers five modes of operation. In PWM mode the device operates at a fixed frequency of 6 MHz (typical) which minimizes RF interference when driving medium-to-heavy loads. At light load, the device enters into ECO mode automatically and operates with reduced switching frequency. In ECO mode, the quiescent current is reduced and extends the battery life. Shutdown mode turns the device off and reduces battery consumption to 0.1 µA (typical). In low-battery condition Bypass mode reduces the voltage dropout to less than 50 mV (typical). The part also features a Sleep mode.

The LM3242 is available in a 9-bump lead-free DSBGA package. A high switching frequency (6 MHz) allows use of only three tiny surface-mount components: one inductor and two ceramic capacitors.

The LM3242 is a DC-DC converter optimized for powering RF power amplifiers (PAs) from a single lithium-ion cell; however, it may be used in many other applications. It steps down an input voltage from 2.7 V to 5.5 V to an adjustable output voltage from 0.4 V to 3.6 V. Output voltage is set using a VCON analog input for controlling power levels and efficiency of the RF PA.

The LM3242 offers five modes of operation. In PWM mode the device operates at a fixed frequency of 6 MHz (typical) which minimizes RF interference when driving medium-to-heavy loads. At light load, the device enters into ECO mode automatically and operates with reduced switching frequency. In ECO mode, the quiescent current is reduced and extends the battery life. Shutdown mode turns the device off and reduces battery consumption to 0.1 µA (typical). In low-battery condition Bypass mode reduces the voltage dropout to less than 50 mV (typical). The part also features a Sleep mode.

The LM3242 is available in a 9-bump lead-free DSBGA package. A high switching frequency (6 MHz) allows use of only three tiny surface-mount components: one inductor and two ceramic capacitors.
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기술 자료

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4개 모두 보기
유형 직함 날짜
* Data sheet LM3242 6-MHz, 750-mA Miniature Adjustable Step-Down DC-DC Converter With Auto Bypass for RF Power Amplifiers datasheet (Rev. E) PDF | HTML 2015/08/27
Selection guide Power Management Guide 2018 (Rev. R) 2018/06/25
EVM User's guide LM3242 DSBGA Evaluation Board (Rev. AY) 2013/04/30
Product overview LM3242 Dynamic Output Voltage DC/DC Converter for 3G/4G RF Power Amplifiers 2012/01/30

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평가 보드

LM3242TM-EV — LM3242 6MHz, 750mA 미니어처, 조정 가능, 스텝다운 DC-DC EVM

The LM3242 is a DC-DC converter optimized for powering multi-mode 3G/4G RF power amplifiers (PAs) from a single Lithium-Ion cell. The LM3242 steps down an input voltage from 2.7V to 5.5V to a dynamically adjustable output voltage of 0.4V to 3.6V. The output voltage is set through a VCON analog (...)

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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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