VSUPEV2 Microchip Technology, VSUPEV2 Datasheet - Page 41

• Manufacturer Part Number: VSUPEV2
• Description: BOARD EVAL FOR MCP4022,4023,4024
• Manufacturer: Microchip Technology

Specifications of VSUPEV2

• Main Purpose: Power Management, Power Supply Supervisor/Tracker/Sequencer
• Embedded: No
• Utilized Ic / Part: SOT-23-5, SOT-23-6 Package
• Primary Attributes: Voltage Detector & Supervisor
• Secondary Attributes: 5 Boards & 3 IC's Included
• Processor To Be Evaluated: SOT23-5/6
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

C.3
© 2006 Microchip Technology Inc.
IDEAS ON EVALUATING AN LDO
One of the characteristics that a designer may wish to evaluate on a LDO is how the
LDO responds to transient loads. Figure C-3 shows a system block diagram for
evaluating a LDO and a typical waveform response (at test point) for the function
generator signal. The output of the function generator connects to a BJT transistor to
simulate the fast switching loads of the circuit.
The value of C2, R3 and C
Look at both the worst-case amplitude load requirements for a loaded and unloaded
system. As the output response of the LDOs become faster, the selection of a smaller
(cheaper) output load capacitor (C
performance).
FIGURE C-3:
Function
Generator
Output
Test
Point
Power
Supply
LDO Evaluation System.
LDO
SOT-23 Evaluation Board PCB
L
will depend on the LDO used and the load of the circuit.
C2
L
) becomes possible (for the same system
C
L
Test Point
R3
From Function
Generator
DS51527B-page 39