DC1392A Linear Technology, DC1392A Datasheet - Page 2

• Manufacturer Part Number: DC1392A
• Description: BOARD DEMO LTM4604A
• Manufacturer: Linear Technology
• Series: µModuler

Specifications of DC1392A

• Design Resources: LTM4604A Spice Model LTM4604 Gerber Files DC1392 Design File
• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Power - Output: -
• Voltage - Output: 0.8V, 1.2V, 1.5V, 1.8V, 2.5V, or 3.3V
• Current - Output: 4A
• Voltage - Input: 2.375 ~ 5.5V
• Regulator Topology: Buck
• Frequency - Switching: 1.25MHz
• Board Type: Fully Populated
• Utilized Ic / Part: LTM4604A
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Demonstration circuit 1392A is an easy way to evaluate the
performance of the LTM4604AEV. 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
2. With power off, connect the input power supply, load
3. Turn on the power at the input. The output voltage
DEMO MANUAL DC1392A
QUICK START PROCEDURE
2
1.2V
and meters as shown in Figure 1. Preset the load to
0A and V
LTM4604A.
should be 1.2V ±2%.
OUT
VO SELECT
1.2V
application:
IN
supply within the operating range of the
TRACK
OFF
RUN/SS
Figure 1. Test Setup of DC1392A
ON
4. Once the proper output voltage is established, adjust
5. To measure input and output ripple, please refer to
6. For optional load transient test, apply adjustable pulse
the load within the operating range and observe the
output voltage regulation, ripple voltage, efficiency and
other parameters
Figure 2 for proper setup.
signal between IOSTEP CLK and GND pins. Pulse am-
plitude 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 tran-
sient current can be monitored at BNC connector J1
(10mV/A), the output voltage can be monitored at BNC
connector J2.
dc1392af