S7DB-12B Datasheet, PDF (10/13 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS 5V Input / 1.2V - 3.3V Output / 12A

POWER PRODUCTS
BP02S7DB-12B
NON-ISOLATED DC/DC CONVERTERS
5V Input / 1.2V – 3.3V Output / 12A
Output Voltage Set-Point Adjustment
Trim Down Test Circuit
Vo
Trim
Gnd
Trim Up Test Circuit
Vo
Trim
Gnd
Output Voltage Set-Point Adjustment
S7DB-12B330 Trim Resistor Calculation
Rtrim_ down = ( ^7.964 − 6.82)Kohm
Vo −Vo, adj
where,
Vo is the nominal output voltage setpoint when trim pin is open ,Vo=3.312V
Vo,adj is the adjusted output voltage.
Rtrim-down is the resistance required between TRIM and Vo.
270
240
210
180
150.01
120.01
90. 01
60. 01
30. 01
0.012.97 _{3 3.04 3.07 3.1 3.13 3.17 3.2 3.23 3.27 3.3}
Adjusted output voltage Vo,adj (V)
Rtrim_ up = ( ^2.536 − 3.65)Kohm
Vo, adj−Vo
where,
Vo is the nominal output voltage setpoint when trim pin is open ,Vo=3.312V
Vo,adj is the adjusted output voltage.
Rtrim-up is the resistance required between TRIM and GND.
270
240
210
180
150.01
120.01
90. 01
60. 01
30. 01
0.013.3 _{3.33 3.37 3.4 3.43 3.46 3.5 3.53 3.56 3.6 3.63}
Adjusted output voltage Vo,adj(V)
©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
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