SXT6A-12SA-P Bourns Inc., SXT6A-12SA-P Datasheet - Page 9

• Manufacturer Part Number: SXT6A-12SA-P
• Description: CONV DC/DC 12V 6A ADJ OUT SIP
• Manufacturer: Bourns Inc.
• Series: SX(T)r
• Type: Point of Load (POL) Non-Isolated with Remote On/Offr

Specifications of SXT6A-12SA-P

• Output: 0.75 ~ 5.5V
• Number Of Outputs: 1
• Power (watts): 33W
• Mounting Type: Through Hole
• Voltage - Input: 8.3 ~ 14V
• Package / Case: 6-SIP Module
• 1st Output: 0.75 ~ 5.5 VDC @ 6A
• Size / Dimension: 1.00" L x 0.26" W x 0.50" H (25.4mm x 6.6mm x 12.7mm)
• Power (watts) - Rated: 33W
• Operating Temperature: -40°C ~ 85°C
• Efficiency: 92%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -

Specifications are subject to change without notice.
Customers should verify device performance in their specific applications.
The output voltage of the device can also be set by applying a voltage between the TRIM and GND pins. The Vtrim equation can be
written as follows:
Vtrim = (0.7 – 0.0667 x{Vo – 0.7225))
To set Vo = 3.3 V, the Vtrim required would therefore be 0.530 V.
Table 2 provides the Vtrim values required for some common output voltage set points.
Overcurrent Protection
The device has an internally set output current limit to protect it from overloads, placing the unit in hiccup mode. Once the overload is
removed the converter automatically resumes normal operation. No user adjustments are available. An external fuse in series with the
input voltage is also required for complete overload protection.
Input Undervoltage Lockout
The device operation is disabled if the input voltage drops below the specified input range. Once the input returns to the specified
range operation automatically resumes. No user adjustments are available.
Output Voltage Setting
The output voltage can be programmed to any voltage between 0.75 Vdc and 5.5 Vdc by connecting a single resistor between the trim
pin and the GND pin of the module, as shown in Fig. 25 below.
If left open circuit the output voltage will default to 0.75 Vdc. The correct Rtrim value for a specific voltage can be calculated using the
following equation:
Rtrim = [10.5/(Vo-0.7525)-1] KΩ
For example, to set the SXT6A-12SA to 3.3 V the following
Rtrim resistor must be used:
Rtrim = [10.5/(3.3-0.7525)-1] KΩ
Rtrim = 3.122 kΩ,
The closest standard 1 % E96 value is 3.09 kΩ.
Table 1 provides the Rtrim values required for some common output
voltage set points. The nearest standard E96 1 % resistor value is also given.
Operating Information (Continued)
SXT6A-12SA SIP Non-Isolated Power Module
Vo (V)
0.75
1.2
1.5
1.8
2.5
3.3
5.0
SXT6A-12SA Rtrim Values
Rtrim (kΩ)
Table 1
22.46
13.05
9.024
5.009
3.122
1.472
Open
Fig. 25 Circuit Configuration to Program Output
Voltage using an External Resistor
1 % Value
Open
22.6
13.0
9.09
4.99
3.09
1.47
V
ON/OFF
IN
(+)
GND
V
TRIM
O
(+)
Rtrim
LOAD
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