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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�). ■
  â– 
  â– 
  â– 
  â– 
  â– 
  â– 
  ■ 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 â—� 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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Packaging

Parametrics

	LTC2920-1CS5#PBF	LTC2920-1CS5#TRMPBF	LTC2920-1CS5#TRPBF	LTC2920-1IS5#PBF	LTC2920-1IS5#TRMPBF	LTC2920-1IS5#TRPBF
DC/DC Feedback Node Tracking	yes	yes	yes	yes	yes	yes
Demo Boards	DC543A,DC563A	DC543A,DC563A	DC543A,DC563A	DC543A,DC563A	DC543A,DC563A	DC543A,DC563A
Design Tools	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model
Export Control	no	no	no	no	no	no
Features	Margining	Margining	Margining	Margining	Margining	Margining
Isupply, mA	0.23	0.23	0.23	0.23	0.23	0.23
Number of Supplies	1	1	1	1	1	1
Operating Temperature Range, °C	0 to 70	0 to 70	0 to 70	-40 to 85	-40 to 85	-40 to 85
Power Good Output	no	no	no	no	no	no
Sequencing	no	no	no	no	no	no
Series FETs Tracking	no	no	no	no	no	no
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
Total Supplies	1	1	1	1	1	1
Tracking	no	no	no	no	no	no

Eco Plan

Other Options

LTC2920-2

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 Line

• LTC2920-1CS5#PBF LTC2920-1CS5#TRMPBF LTC2920-1CS5#TRPBF LTC2920-1IS5#PBF LTC2920-1IS5#TRMPBF LTC2920-1IS5#TRPBF

Manufacturer's Classification

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