LM3269TLE/NOPB by Texas Instruments | DC to DC Converter | Avnet ASIA

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LM3269TLE/NOPB

Texas Instruments

Conv DC-DC Single Step Down 2.7V to 5.5V 12-Pin DS-BGA T/R

Manufacturer Part #: LM3269TLE/NOPB

Alternate Part #: LM3269TLE/NOPB


legend RoHS Compliant

Descriptions

Documents

Subs/Alternatives

Information

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.

 

Key Features

  • 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
  • Technical Attributes

    Description
    Value
    Find similar Parts
    Screening Level
    Industrial
    MSL Level
    1
    Efficiency
    95 %
    Operating Supply Voltage
    2.7 to 5.5 V
    Type
    Step Down
    Pin Count
    12
    Product Dimensions
    2.529(Max) x 2.022(Max) x 0.335(Max)
    Maximum Input Voltage
    5.5 V
    Max Processing Temp
    260
    Mounting
    Surface Mount
    Minimum Input Voltage
    2.7 V
    Line Regulation
    10 mV
    Supplier Package
    DSBGA
    Switching Frequency
    2400 kHz
    Maximum Output Current
    0.75 A
    Number of Outputs
    1
    Load Regulation
    20 mV
    Output Voltage
    0.6 to 4.2 V
    Output Type
    Adjustable
    Lead Finish
    Tin|Silver|Copper

    ECCN / UNSPSC

    Description
    Value
    ECCN:
    EAR99
    SCHEDULE B:
    8542390000
    HTSN:
    8542390000
    UNSPSC:
    32101600
    UNSPSC VERSION:
    V15.1101

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