109100518 Lineage Power, 109100518 Datasheet - Page 14

• Manufacturer Part Number: 109100518
• Description: Module DC-DC 1-OUT 0.75V to 4V 5A 5-Pin SMT T/R
• Manufacturer: Lineage Power
• Type: Non-Inverting|Inverting|Step Up|Step Downr

Specifications of 109100518

• Package: 5SMT
• Output Current: 5 A
• Output Voltage: 0.75 to 4 V
• Input Voltage: 3 to 5.8 V
• Number Of Outputs: 1

Data Sheet
October 2, 2009
Feature Descriptions
Output Voltage Programming
The output voltage of the Austin MicroLynx
programmed to any voltage from 0.75 Vdc to 4.0 Vdc by
connecting a single resistor (shown as Rtrim in Figure 31)
between the TRIM and GND pins of the module. Without
an external resistor between TRIM pin and the ground,
the output voltage of the module is 0.75 Vdc. To
calculate the value of the resistor Rtrim for a particular
output voltage Vo, use the following equation:
For example, to program the output voltage of the Austin
MicroLynx
follows:
Figure 31.
output voltage using an external resistor.
The Austin MicroLynx
applying a voltage between the TRIM and the GND pins
(Figure 32). The following equation can be used to
determine the value of Vtrim needed to obtain a desired
output voltage Vo:
For example, to program the output voltage of a
MicroLynx
follows:
LINEAGE
V
ON/OFF
IN
Vtrim
TM
(+)
Vtrim
TM
POWER
GND
Rtrim
module to 3.3 Vdc, Vtrim is calculated as
module to 1.8 Vdc, Rtrim is calculated is
Circuit configuration for programming
Rtrim
=
=
0 (
(
V
TRIM
Rtrim
0
=
O
7 .
Vtrim
7 .
=
(+)
⎡
⎢
⎣
TM
Vo
−
⎡
⎢
⎣
−
1
can also be programmed by
. 0
. 0
8 .
21070
−
=
1698
1698
21070
=
−
. 0
15
. 0
. 0
7525
7525
.
2670
(continued)
004
×
×
{
{
Vo
3
3.0 – 5.8Vdc input; 0.75Vdc to 4.0Vdc Output; 5A output current
−
3 .
k
−
V
Vout
Ω
5110
5110
−
−
R
. 0
. 0
trim
7525
7525
⎤
⎥
⎦
⎤
⎥
⎦
TM
Ω
SMT can be
}
}
Austin MicroLynx
)
)
LOAD
Figure 32. Circuit Configuration for programming
Output voltage using external voltage source.
Table 1 provides Rtrim values required for some common
output voltages, while Table 2 provides values of the
external voltage source, Vtrim for the same common
output voltages.
By using a 1% tolerance trim resistor, set point tolerance
of ±2% is achieved as specified in the electrical
specification. The POL Programming Tool, available at
www.lineagepower.com
helps determine the required external trim resistor
needed for a specific output voltage.
V
ON/OFF
TM
IN
Table 1
Table 2
(+)
SMT Non-isolated Power Modules:
GND
V
V
0.7525
0.7525
O, set
O, set
1.2
1.5
1.8
2.5
3.3
1.2
1.5
1.8
2.5
3.3
V
TRIM
O
(V)
(V)
(+)
under the Design Tools section,
+
Rtrim (KΩ)
-
Vtrim (V)
41.973
23.077
15.004
0.6240
0.5731
0.5221
0.4033
0.2674
6.947
3.160
Open
Open
V
t
rim
LOAD
14