AN2833 datasheet(18/32 Pages) STMICROELECTRONICS

Part #	AN2833

Description	Dual step-down controller with auxiliary voltages for industrial system power

PDF	32 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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18 / 32 page

Test setup and performance summary

AN2833

18/32

Test setup and performance summary

11.1

Test setup

The PM6681A demonstration board has the following input/output connections:

●

24 V input through J5 - J2 (VIN+ and VIN-)

●

3.3 V SMPS output through J4 - J13 (OUT1+ and OUT1-)

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1.8 V SMPS output through J1 - J12 (OUT2+ and OUT2-)

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2.5 V linear regulator output through LDO_ADJ - J10

●

5 V linear regulator output through LDO5 - J3 (LDO5)

A power supply capable of supplying at least 6 A should be connected to VIN+, VIN- and two

active loads should be connected respectively to OUT1+, OUT1- and OUT2+, OUT2-.

Figure 7.

Setup connections

AM01442v1

Active load

5 V @:

50 mA cont

100 mA pk

Active load

2.5 V @:

50 mA cont

100 mA pk

Active load

3.3 V @ 5 A

Active load

1.8 V @ 5 A

DC supply 24 V

AN2833 Datasheet(PDF) 18 Page - STMicroelectronics