Linear Technology DC1295B - LTM4606EV Demo Board | EN55022B Compliant DC1295B DC1295B 데이터 시트

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dc1295bf

DEMO MANUAL DC1295B

Demonstration circuit DC1295B is an easy way to evaluate 
the performance of the LTM4606EV. Please refer to Figure 1 
for proper measurement equipment setup and follow the 
procedure below: 

1. Place jumpers in the following positions for a typical 

1.5V

OUT

 application:

CCM

LO

LO

ON

1.5V

2. With power off, connect the input power supply, load 

and meters as shown in Figure 1. Preset the load to 0A 
and V

IN

 supply to be 12V. 

3. Turn on the power at the input. The output voltage 

should be 1.5V ±2% (1.47V ~ 1.53V).

4.  Once the proper output voltage is established, adjust the 

load within the operating range and observe the output 
voltage regulation, efficiency and other parameters. 

5. The very low ripple of the LTM4606 requires proper 

measurement technique. Input ripple can be measured 
with a typical scope probe, but you should not use the 
ground clip lead. See Figure 2 for an illustration of how 
to connect to the input capacitor. The output ripple 
should be measured with a 50Ω BNC cable connected 
to J6.

6. For the optional load transient test, apply an adjust-

able pulse signal between IOSTEP_CLK and GND pins. 
Pulse amplitude sets the current step. The pulse signal 
should have very small duty cycle (<5%) to limit the 
thermal stress on the transient load circuit. The output 
transient current can be monitored at BNC connector 
J5 (10mV/A), the output voltage can be monitored at 
BNC connector J6.