SOT23-5EV-VREG Microchip Technology, SOT23-5EV-VREG Datasheet - Page 14

• Manufacturer Part Number: SOT23-5EV-VREG
• Description: EVAL BOARD SOT23-5 VOLTAGE REG
• Manufacturer: Microchip Technology

Specifications of SOT23-5EV-VREG

• Channels Per Ic: 1 - Single
• Regulator Type: Positive Fixed & Adjustable
• Board Type: Partially Populated
• Utilized Ic / Part: SOT-23-5 Package
• Silicon Manufacturer: Microchip
• Application Sub Type: Voltage Regulator
• Kit Application Type: Power Management - Voltage Regulator
• Silicon Core Number: MCP1801, MCP1802, TC1014/1015/1185
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Voltage - Output: -
• Voltage - Input: -
• Operating Temperature: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

SOT23-5 Voltage Regulator Evaluation Board User’s Guide
2.3
DS51811A-page 10
GETTING STARTED
The SOT23-5 Voltage Regulator Evaluation Board is fully assembled and tested. All
that is required for operating is a user supplied voltage regulator and a supply voltage
source. Some of the tests that may be completed using the SOT23-5 Voltage Regulator
Evaluation Board shall now be described.
2.3.1
When measuring ground current, jumper JP3 should be removed, otherwise leave
jumper JP3 on. To measure ground current, perform the following steps:
1. Add desired load resistor to R5.
2. Remove jumpers JP3 and JP4.
3. Connect an ammeter across testpoints TP6(+) and TP7(-). Select the
4. Connect a voltmeter across testpoints TP9(+) and TP10(-).
5. Add jumper JP1.
6. Add jumper JP2 to pins 1 and 2.
7. Apply source voltage to testpoints TP1(+) and TP2(-).
8. Verify the voltage across testpoints TP9 and TP10 is within the expected range
9. Read the Ground Current directly from the ammeter connected to testpoints TP6
10. Vary the input voltage to obtain data for ground current versus input voltage.
11. Add the load selection jumper, JP4.
12. Read the Ground Current directly from the ampere meter connected to testpoints
13. The data collected will be the ground current versus load current.
2.3.2
The output voltage of some adjustable voltage regulators may be adjusted by selecting
appropriate resistor divider values connected to the Adjust (ADJ) pin. R2 and R3 pads
are available to be used as the voltage divider.
2.3.3
The Shutdown (SHDN) input selection may be set to V
voltage using testpoint TP5. To select V
pins JP2-1 and JP2-2. To select GND as the SHDN voltage, place a jumper across pins
JP-2 and JP-3. To select a user specified input such as a function generator, remove
the jumper from JP2 and connect the external voltage source positive lead (+) to
testpoint TP5 and the negative lead (-) to testpoint TP4.
appropriate meter scale for the evaluated device.
of the device being tested.
and TP7.
With no load attached to the output of the voltage regulator, the measured ground
current is also called the quiescent current of the regulator.
TP6 and TP7.
Ground Current and Quiescent Current
Adjustable Output Voltage (ADJ)
Shutdown input selection (SHDN)
IN
as the SHDN voltage, place a jumper across
IN
, GND, or a user supplied
© 2009 Microchip Technology Inc.