Datasheet Linear Technology LTC2920-1 Single/Dual Power Supply Margining Controller Datasheets- Download » Datasheet, PDF, 170 Kb, Revision: A, File uploaded 10-25-2017
LTC2920-1/LTC2920-2 - Single/Dual Power Supply Margining Controller Docket ↓LTC2920-1/LTC2920-2 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) ...
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PackagingParametrics | LTC2920-1CS5#PBF | LTC2920-1CS5#TRMPBF | LTC2920-1CS5#TRPBF | LTC2920-1IS5#PBF | LTC2920-1IS5#TRMPBF | LTC2920-1IS5#TRPBF |
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DC/DC Feedback Node Tracking | yes | yes | yes | yes | yes | yes |
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Demo Boards | DC543A,DC563A | DC543A,DC563A | DC543A,DC563A | DC543A,DC563A | DC543A,DC563A | DC543A,DC563A |
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Design Tools | LTspice Model | LTspice Model | LTspice Model | LTspice Model | LTspice Model | LTspice Model |
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Export Control | no | no | no | no | no | no |
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Features | Margining | Margining | Margining | Margining | Margining | Margining |
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Isupply, mA | 0.23 | 0.23 | 0.23 | 0.23 | 0.23 | 0.23 |
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Number of Supplies | 1 | 1 | 1 | 1 | 1 | 1 |
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Operating Temperature Range, °C | 0 to 70 | 0 to 70 | 0 to 70 | -40 to 85 | -40 to 85 | -40 to 85 |
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Power Good Output | no | no | no | no | no | no |
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Sequencing | no | no | no | no | no | no |
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Series FETs Tracking | no | no | no | no | no | no |
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Supply Voltage Range | 2.2V to 6V | 2.2V to 6V | 2.2V to 6V | 2.2V to 6V | 2.2V to 6V | 2.2V to 6V |
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Total Supplies | 1 | 1 | 1 | 1 | 1 | 1 |
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Tracking | no | no | no | no | no | no |
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Eco PlanOther OptionsLTC2920-2 Articles- 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 LineSeries: 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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