Performance Summary; Quick Start Procedure - Linear Technology DC1724A Demo Manual

DEMO MANUAL DC1724A

performance summary

PARAMETER
Input Voltage Range
Output Voltage
Maximum Output Current
Typical Switching Frequency
Typical Efficiency

Quick start proceDure

DC1724A provides an easy way to evaluate the performance
of the LTM8029. Refer to Figure 2 for proper measurement
equipment setup and follow the procedure below:
NOTE: When measuring the input or output voltage ripple,
care must be taken to avoid a long ground lead on the
oscilloscope probe. Measure the input or output voltage
ripple by touching the probe tip directly across the V
V and GND terminals. See Figure 3 for proper scope
OUT
probe technique.
1. Place JP1 on the ON position.
2. With power off, connect the input power supply to V
and GND.
2
(T = 25°C)
A
CONDITIONS
V = 5V
OUT
V = 12V, V = 5V, I = 600mA
IN OUT OUT
0
–20
–40
–60
–80
–100
–120
–140
0 0.5 1 1.5 2 2.5 3 3.5
FREQUENCY (MHz)
Figure 1. DC1724A Output Noise Spectrum
(V = 12V, V = 5V, I
IN OUT OUT
3. Turn on the power at the input.
NOTE: Make sure that the input voltage does not exceed
36V.
4. Check for the proper output voltage.
NOTE. If there is no output, temporarily disconnect the
load to make sure that the load is not set too high or
or
IN
is shorted.
5. Once the proper output voltage is established, adjust
the load within the operating range and observe the
output voltage regulation, ripple voltage, efficiency and
IN
other parameters.
VALUE
5.6V to 36V
5V
600mA
600kHz
85%
4 4.5 5
DC1724A F01
= 600mA)
dc1724af