108988358 Lineage Power, 108988358 Datasheet - Page 13

• Manufacturer Part Number: 108988358
• Description: Module DC-DC 1-OUT 0.75V to 3.63V 6A 6-Pin SMT T/R
• Manufacturer: Lineage Power
• Type: Non-Inverting|Inverting|Step Up|Step Downr

Specifications of 108988358

• Package: 6SMT
• Output Current: 6 A
• Output Voltage: 0.75 to 3.63 V
• Input Voltage: 2.4 to 5.5 V
• Number Of Outputs: 1
• Switching Regulator: Yes

Data Sheet
October 2, 2009
Feature Descriptions
Output Voltage Programming
The output voltage of the Austin MicroLynx
be programmed to any voltage from 0.75 Vdc to 3.63
Vdc by connecting a single resistor (shown as Rtrim in
Figure 30) 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
0.7525 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 30. Circuit configuration to program output
voltage using an external resistor.
Table 1 provides Rtrim values required for some common
output voltages.
LINEAGE
Rtrim
=
V
ON/OFF
IN
Table 1
15
TM
(+)
POWER
.
004
GND
Rtrim
II module to 1.8 Vdc, Rtrim is calculated is
V
Rtrim
0.7525
O, set
k
1.2
1.5
1.8
2.5
3.3
Ω
V
TRIM
=
O
(V)
=
(+)
⎡
⎢
⎣
Vo
⎡
⎢
⎣
1
8 .
21070
−
21070
−
. 0
. 0
7525
7525
(continued)
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 6A output current
Rtrim (KΩ)
−
−
Vout
41.973
23.077
15.004
5110
Open
6.947
3.160
5110
R
trim
⎤
⎥
⎦
⎤
⎥
⎦
TM
Ω
Austin MicroLynx
II SMT can
LOAD
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
Tools section, helps determine the required external trim
resistor needed for a specific output voltage.
Voltage Margining
Output voltage margining can be implemented in the
Austin MicroLynx
resistor, R
for margining-up the output voltage and by connecting
a resistor, R
pin for margining-down. Figure 31 shows the circuit
configuration for output voltage margining. The POL
Programming Tool, available at
www.lineagepower.com
section, also calculates the values of R
R
Please consult your local Lineage Power technical
representative for additional details.
Figure 31. Circuit Configuration for margining
Output voltage.
margin-down
TM
II SMT Non-isolated Power Modules:
Austin Lynx or
Lynx II Series
margin-up
for a specific output voltage and % margin.
www.lineagepower.com
margin-down
, from the Trim pin to the ground pin
TM
II modules by connecting a
Trim
, from the Trim pin to the Output
Vo
GND
under the Design Tools
Rtrim
Q2
Q1
under the Design
Rmargin-down
Rmargin-up
margin-up
and
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