NTA-X

NTA-X

NTA-X

NTA-X

NTA-X

NTA-X

NTA-X

Series

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Application

Application

Application

Application

Application

Application

Application

Notes

Notes

Notes

Notes

Notes

Notes

Notes

Minimum

Minimum

Minimum

Minimum load

load

load

load

The minimum load to meet data sheet speciffication is 10% of the full rated load across the speciffied input voltage range. Lower than 10% minimum loading will result in an

increase in output voltage, which may rise to typically double the speciffied output voltage if the output load falls to less than 5%.

Capacitive

Capacitive

Capacitive

Capacitive loading

loading

loading

loading and

and

and

and start

start

start

start up

up

up

up

Typical start up times for this series, with a typical input voltage rise time of 2.2μs and output capacitance of 10μF, are shown in the table below. The product series will start

into a capacitance of 47μF with an increased start time, however, the maximum recommended output capacitance is 10μF.

Start-up time

Start-up time

μs

μs

NTA0303XMC

1630

NTA0509XMC

6850

NTA0305XMC

1359

NTA0512XMC

11560

NTA0309XMC

3435

NTA0515XMC

15640

NTA0312XMC

6590

NTA1205XMC

1154

NTA0315XMC

25340

NTA1209XMC

4050

NTA0503XMC

1599

NTA1212XMC

7995

NTA0505XMC

2185

NTA1215XMC

11200

NTA0305NXM

C

1395

Ripple

Ripple

Ripple

Ripple &

&

&

& Noise

Noise

Noise

Noise Characterization

Characterization

Characterization

Characterization Method

Method

Method

Method

Ripple and noise measurements are performed with the following test configu-ration.

C1

1μF X7R multilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter

C2

10μF tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the DC/DC converter with an ESR of less

than 100mΩ at 100 kHz

C3

100nF multilayer ceramic capacitor, general purpose

R1

450Ω resistor, carbon fi lm, ±1% tolerance

R2

50Ω BNC termination

T1

3T of the coax cable through a ferrite toroid

RLOAD

Resistive load to the maximum power rating of the DC/DC converter. Connections should be made via twisted wires

Measured values are multiplied by 10 to obtain the speciffied values.

Differential

Differential

Differential

Differential Mode

Mode

Mode

Mode Noise

Noise

Noise

Noise Test

Test

Test

Test Schematic

Schematic

Schematic

Schematic