APC12J03-9MAL Emerson Network Power, APC12J03-9MAL Datasheet - Page 10

• Manufacturer Part Number: APC12J03-9MAL
• Manufacturer: Emerson Network Power
• Type: Step Downr

Specifications of APC12J03-9MAL

• Number Of Outputs: 1
• Output Current: 12A
• Input Voltage: 3.3V
• Output Voltage: 0.9V
• Screening Level: Industrial
• Product Length (mm): 33.02mm
• Product Depth (mm): 16mm
• Mounting Style: Surface Mount
• Pin Count: 7
• Package / Case: SMT
• Lead Free Status / Rohs Status: Compliant

Trim Function (continued)
To adjust Vo to a higher value, please refer to
Figure 4. The required resistor value (Rt) can be
determined through Equation (1) where Vo is the
voltage on P2 before the adjustment and Vot is the
voltage of P2 after Rt is connected.
Please refer to related constants given in TABLE 1 to calculate the Equation.
APC08/12x03
APC08/12x08
V
Be aware that the maximum Vo allowed is 3.6V. Please refer to Centauri datasheet.
Example:
Module version: APC08J03-9 (1.8 to 6.0Vin, 0.9Vo).
Requiring to adjust output voltage from Vo = 0.9V to Vot = 1.8V. V
Based on Equation (1), Rt can be determined as 3.0kΩ.
To adjust Vo to a lower value, Rt should be connected between P4 and P2. Equation (2) provides the calculation for Rt.
Be aware that the minimum Vo is 0.9V.
Example
Module version: APC08F03-9 (4.0 to 6.Vin, 3.3Vo).
Requiring to adjust the output voltage from Vo = 3.3V to Vot = 3.3 (1-0.02) = 3.234V.
Vo = 3.3V, Vot = 3.234V, V
Based on Equation (1), Rt can be determined as 111.9kΩ.
Rt
Rt
MODEL: APC12 SERIES
JANUARY 6, 2002 REVISION A (PRELIMINARY)
ref
=
=
Vot
(
V
Vref
o
V
−
−
ref
V
Vo
ref
(
V
1 R
)(
o
V
−
ot
V
Version
R2
R2
0.87V
−
ot
V
)
ref
ref
Equation (1)
)
= 0.87V, R
R
2
0.9V
97.6k
210k
2
= 1.13kΩ (from TABLE 1).
Technical Reference Notes
Equation (2)
1.2V
8.45k
17.4k
APC12 Centauri II
TABLE 1. CONSTANTS
4.32k
9.09k
1.5V
ref
Figure 4. Output Voltage Trim Setup.
= 0.87V and R
1.8V
2.94k
6.04k
1
= 3.09kΩ (from TABLE 1).
2.5V
1.69k
3.48k
3.3V
1.13k
2.32k
SHEET 10 OF 23
R1
3.09k
6.49k