NCP565VADJEVB ON Semiconductor, NCP565VADJEVB Datasheet

NCP565VADJEVB

Manufacturer Part Number

NCP565VADJEVB

Description

EVAL BOARD FOR NCP565VADJ

Manufacturer

ON Semiconductor

Datasheets

1.NCP565V12EVB.pdf (17 pages)

2.NCP565VADJEVB.pdf (1 pages)

Specifications of NCP565VADJEVB

Design Resources

NCP565 ADJ Demo Board BOM NCP565VADJEVB Gerber Files NCP565 ADJ Demo Board Schematic

Channels Per Ic

1 - Single

Voltage - Output

3.3V

Current - Output

1.5A

Voltage - Input

Regulator Type

Positive Fixed

Board Type

Fully Populated

Utilized Ic / Part

NCP565

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Operating Temperature

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

For Use With/related Products

NCP565VADJ

Other names

NCP565VADJEVBOS

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Test Procedures for NCP565 ADJ Demonstration Board

08/25/2003

The adjustable output voltage for this demo board is set at 3.3V based on the BOM. If

other voltage value is desired, please choose different resistance values for R1 and R2.

The output voltage is set according to the formula:

The adjust pin current, Iadj, is typically 30nA and normally much lower than the current

flowing through R1 and R2, thus it generates a small output voltage error that can

usually be ignored.

Test procedures for NCP565 ADJ demonstration board

1. Test equipments:

a. DC power supply

b. 2 multi-meters

c. Electrical Load

d. Oscilloscope

2. Test procedures:

a. Connect the demo board as shown in Figure 1

Vout

Vin

Iload

Gnd

Figure 1: NCP565 Test Setup

b. Turn on the power supply to 5V and no load current. Check Vout is about 3.3V. If

there is big difference from 3.3V, please check R1 and R2 and make sure they are in the

right position.

c. Adjust load current from 10mA to 1.5A and use the scope to see NCP565 Pin 5(ADJ

pin) voltage. Make sure it is in the range of 0.882V~0.918V (typical value is 0.9V) and no

oscillation on it.

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