RC5054A

PRODUCT SPECIFICATION

6

Table 1. Output Voltage Table

Note:

PIN NAME

NOMINAL

OUTPUT

VOLTAGE

PIN NAME

NOMINAL

OUTPUT

VOLTAGE

VID4

VID3

VID2

VID1

VID0

VID4

VID3

VID2

VID1

VID0

01111

1.30

11111

SHDN

01110

1.35

11110

2.1

01101

1.40

11101

2.2

01100

1.45

11100

2.3

01011

1.50

11011

2.4

01010

1.55

11010

2.5

01001

1.60

11001

2.6

01000

1.65

11000

2.7

00111

1.70

10111

2.8

00110

1.75

10110

2.9

00101

1.80

10101

3.0

00100

1.85

10100

3.1

00011

1.90

10011

3.2

00010

1.95

10010

3.3

00001

2.00

10001

3.4

00000

2.05

10000

3.5

For an equation for the ripple current see the section under

component guidelines titled ‘Output Inductor Selection.’

A small ceramic capacitor should be placed in parallel with

ence of switching noise on the input voltage.

Output Voltage Program

The output voltage of a RC5054A converter is programmed

identification (VID) pins program an internal voltage refer-

ence (DACOUT) with a 5-bit digital-to-analog converter

(DAC). The level of DACOUT also sets the PGOOD and

OVP thresholds. Table 1 specifies the DACOUT voltage for

the 32 combinations of open or short connections on the VID

pins. The output voltage should not be adjusted while the

converter is delivering power. Remove input power before

changing the output voltage. Adjusting the output voltage

during operation could toggle the PGOOD signal and exer-

cise the overvoltage protection.

Grounding any combination of the VID pins increases the

DACOUT voltage.