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LM3290

新規設計での使用を推奨しません

RF パワー・エンベロープ変調器、パワー・アンプ用

ご注文はこちら
データシート

LM3290

新規設計での使用を推奨しません
データシート ご注文はこちら

製品詳細

Rating Catalog Operating temperature range (°C) -30 to 85 Type Converter Iout (max) (A) 1.2 Vin (min) (V) 2.5 Vin (max) (V) 5
Rating Catalog Operating temperature range (°C) -30 to 85 Type Converter Iout (max) (A) 1.2 Vin (min) (V) 2.5 Vin (max) (V) 5
DSBGA (YFQ) 30 5.71999999999999912 mm² 2.5999999999999996 x 2.2
  • VOUT_RANGE
    • VOUT_ET = 0.6 V to 4.5 V
    • VOUT_APT = 0.4 V to 3.81 V (or VIN – 200 mV)
  • DC Boost For ET Operation:
    • Boost Input Voltage Range: 2.5 V to 5 V
    • High-Efficiency (90% typical) with Internal
      Synchronous Rectification
    • Boost Bypass Function with Low Resistance
      (150 mΩ typ.)
    • 2.7-MHz PWM Switching Frequency
  • Buck DC-DC for APT and ET Operation:
    • High Operating Frequency for Small External
      Inductor and Capacitors
    • VOUT_RANGE = 0.4 V to 3.81 V (or VIN – 200 mV)
    • High-Efficiency (95% typical) with Internal
      Synchronous Rectification
    • Low-Power PFM Mode
  • LM3291 Control:
    • Automatic Control of LM3291 in ET Mode
  • RFFE Control Interface:
    • 1.8-V MIPI RFFE 1.1-Compatible Digital
      Control Interface
    • 26-MHz Write Capability
    • 13-MHz Read Capability

All trademarks are the property of their respective owners.

  • VOUT_RANGE
    • VOUT_ET = 0.6 V to 4.5 V
    • VOUT_APT = 0.4 V to 3.81 V (or VIN – 200 mV)
  • DC Boost For ET Operation:
    • Boost Input Voltage Range: 2.5 V to 5 V
    • High-Efficiency (90% typical) with Internal
      Synchronous Rectification
    • Boost Bypass Function with Low Resistance
      (150 mΩ typ.)
    • 2.7-MHz PWM Switching Frequency
  • Buck DC-DC for APT and ET Operation:
    • High Operating Frequency for Small External
      Inductor and Capacitors
    • VOUT_RANGE = 0.4 V to 3.81 V (or VIN – 200 mV)
    • High-Efficiency (95% typical) with Internal
      Synchronous Rectification
    • Low-Power PFM Mode
  • LM3291 Control:
    • Automatic Control of LM3291 in ET Mode
  • RFFE Control Interface:
    • 1.8-V MIPI RFFE 1.1-Compatible Digital
      Control Interface
    • 26-MHz Write Capability
    • 13-MHz Read Capability

All trademarks are the property of their respective owners.

The LM3290, with its companion IC LM3291, is an RF envelope supply modulator (EM) with integrated DC-DC boost converter optimized for Envelope Tracking (ET) RF power amplifiers (PAs). The device enables maximum transmit output power independent of the input battery voltage (battery as low as 2.5 V) and is controlled by the MIPI RFFE 1.1.

The LM3290 operates in two active modes:

Active Mode 1: For low TX output power, LM3290 may operate in Average Power Tracking (APT) mode, providing a static, but programmable, output voltage to supply the PA. At light load and in APT mode, the LM3290 enters into Pulse Frequency Mode (PFM) operation automatically and operates with reduced switching frequency. In PFM mode, the quiescent current is reduced, which extends the battery life.

Active Mode 2: In ET mode, the LM3290 with LM3291 efficiently provides a dynamic, high-bandwidth supply voltage for the PA to maximize total EM + PA efficiency. The envelope modulator follows the envelope reference input signal delivered by the RFIC to the LM3291 via a differential analog input. The output is a single-ended power supply signal to the PA.

The LM3290 and LM3291 support 3G, as well as LTE operation up to 20-MHz signal bandwidth.

The LM3290 controls the LM3291 companion-IC through direct control signals, and no additional controls are needed from the system. Shutdown, standby, and idle modes turn the EM off and reduce battery current consumption.

For the full datasheet, samples, or the EVM hardware and software please contact a TI representative at ET@list.ti.com.

For all available packages, see the orderable addendum at the end of the datasheet.

The LM3290, with its companion IC LM3291, is an RF envelope supply modulator (EM) with integrated DC-DC boost converter optimized for Envelope Tracking (ET) RF power amplifiers (PAs). The device enables maximum transmit output power independent of the input battery voltage (battery as low as 2.5 V) and is controlled by the MIPI RFFE 1.1.

The LM3290 operates in two active modes:

Active Mode 1: For low TX output power, LM3290 may operate in Average Power Tracking (APT) mode, providing a static, but programmable, output voltage to supply the PA. At light load and in APT mode, the LM3290 enters into Pulse Frequency Mode (PFM) operation automatically and operates with reduced switching frequency. In PFM mode, the quiescent current is reduced, which extends the battery life.

Active Mode 2: In ET mode, the LM3290 with LM3291 efficiently provides a dynamic, high-bandwidth supply voltage for the PA to maximize total EM + PA efficiency. The envelope modulator follows the envelope reference input signal delivered by the RFIC to the LM3291 via a differential analog input. The output is a single-ended power supply signal to the PA.

The LM3290 and LM3291 support 3G, as well as LTE operation up to 20-MHz signal bandwidth.

The LM3290 controls the LM3291 companion-IC through direct control signals, and no additional controls are needed from the system. Shutdown, standby, and idle modes turn the EM off and reduce battery current consumption.

For the full datasheet, samples, or the EVM hardware and software please contact a TI representative at ET@list.ti.com.

For all available packages, see the orderable addendum at the end of the datasheet.
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* データシート LM3290 Product Brief データシート (Rev. A) PDF | HTML 2014年 6月 2日

購入と品質

記載されている情報：
  • RoHS
  • REACH
  • デバイスのマーキング
  • リード端子の仕上げ / ボールの原材料
  • MSL 定格 / ピーク リフロー
  • MTBF/FIT 推定値
  • 使用原材料
  • 認定試験結果
  • 継続的な信頼性モニタ試験結果
記載されている情報：
  • ファブの拠点
  • 組み立てを実施した拠点