Performance Summary; Quick Start Procedure - Linear Technology DC1973A Demo Manual

performance summary

SYMBOL PARAMETER
V Input Supply Range
IN
V Output Voltage
OUT
Max I Maximum Output Current
OUT
f Switching Frequency
SW
EFE Efficiency at DC

Quick start proceDure

Demonstration circuit 1973A is easy to set up to evalu-
ate the performance of the LT8697. Refer to Figure 2 and
Figure 3 for proper measurement equipment setup and
follow the procedure below:
1. With power off, connect the input power supply to V
and GND.
2. With power off, connect the load to VCABLE and C_GND.
3. Set X1 to X5 to OPEN positions.
4. Turn on the power at the input.
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DEMO MANUAL DC1973A
Specifications are at T = 25°C
A
CONDITIONS
I = 2.1A, Measured at V
OUT OUT
5. Carefully evaluate other design parameters as needed.
6. If a USB device is to be connected to J3, use Table 1 as
a guide to set X1 to X4 for different USB applications.
The total current provided at J3 and VCABLE should
not exceed 2.1A.
IN
7. Set X5 to V+ if a quick transient test is desirable. The
load step applied to VCABLE is 500mA. Again, make
sure the total load current does not exceed 2.1A during
the test.
MIN TYP MAX
6 42
4.8 5 5.2
2.1
1.9 2 2.05
91
UNITS
V
V
A
MHz
%
dc1973af
3