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Datasheet Linear Technology LTC2920-1

ManufacturerLinear Technology

Single/Dual Power Supply Margining Controller


  • Download » Datasheet, PDF, 170 Kb, Revision: A, File uploaded 10-25-2017
    LTC2920-1/LTC2920-2 - Single/Dual Power Supply Margining Controller
    Docket ↓
    Single/Dual Power Supply
    Margining Controller U FEATURES DESCRIPTIO ■ The LTC®2920 allows power supplies and power supply
    module output voltages to be precisely adjusted both up
    and down for automated PCB testing. The power supply
    output voltage is changed by sourcing or sinking current
    into the feedback node or voltage adjust pin of the power
    supply. This allows a system to test the correct operation
    of electrical components at the upper and/or lower power
    supply voltage limits specified for a given design (Power
    Supply “Margining”). ■

    ■ Margin Voltage Precision VIH or IN1, IN2 < VIL, (Note 4) ● 5 167 μA IIMHIGH High Range IMARGIN Current—
    Sourcing or Sinking RSET1, RSET2 Tied to VCC,
    IN1, IN2 > VIH or IN1, IN2 < VIL, (Note 4) ● 0.15 2 mA VM IM1, IM2 Output Voltage Compliance (Note 3) ● 0.55 VCC – 0.55 V 292012fa 2 LTC2920-1/LTC2920-2
    ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
    temperature range, otherwise specifications are at TA = 25°C.
    SYMBOL PARAMETER CONDITIONS IIMACCURACY Low Range Current Accuracy 100μA ≤ ⏐IM⏐ ≤ 167μA, (Note 6) ...




DC/DC Feedback Node Trackingyesyesyesyesyesyes
Demo BoardsDC543A,DC563ADC543A,DC563ADC543A,DC563ADC543A,DC563ADC543A,DC563ADC543A,DC563A
Design ToolsLTspice ModelLTspice ModelLTspice ModelLTspice ModelLTspice ModelLTspice Model
Export Controlnononononono
Isupply, mA0.
Number of Supplies111111
Operating Temperature Range, °C0 to 700 to 700 to 70-40 to 85-40 to 85-40 to 85
Power Good Outputnononononono
Series FETs Trackingnononononono
Supply Voltage Range2.2V to 6V2.2V to 6V2.2V to 6V2.2V to 6V2.2V to 6V2.2V to 6V
Total Supplies111111

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  • Download » Articles - LT Journal, PDF, 136 Kb, 12-01-2003
    Voltage Margining Made Easy
    Docket ↓
    DESIGN FEATURES Voltage Margining Made Easy
    by Jeff Heath
    Introduction Linear Technology has introduced two
    devices that simplify supply margin
    testing and are particularly well suited
    for multiple power supply applications.
    The LTC2920-1 is a single power supply margining controller packaged in
    a 5-lead SOT-23. The LTC2920-2 is a
    dual power supply margining controller packaged in an 8-lead MSOP. Both
    parts provide an easy and accurate way
    to accomplish onboard power supply
    margining with a minimum of design
    time and board space. testing is often called “supply margining” or “voltage margining.” The testing
    is typically accomplished by forcing
    the power supply modules or DC/DC
    converters in the system to ±5% of
    their nominal voltage. Once the supply
    voltage has settled at the margined
    voltage, the system performance can
    be evaluated. Figure 1 shows typical
    rise and fall times for voltage margining waveforms. Typical Applications
    Figure 2 shows how the 5-lead SOT23 LTC2920-1 controls a LTC1435A
    switching regulator by sourcing or ...

Moldel Line

Series: LTC2920-1 (6)

Manufacturer's Classification

  • Monitor, Control and Protection > Sequencers, Trackers, and Margining Controllers
  • Monitor, Control and Protection > Sequencers, Trackers, and Margining Controllers > Margining Controllers

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