EP3102 Datasheet, PDF (8/10 Pages) Eorex Corporation – 150 KHz, 2A Asynchronous Step-down Converter

eorex
EP3102
Applications Information (Continued)
(2) Adjustable Type Circuit
R2
R1
12V
DC Input
C_IN ⁺
330uF
3
FB
1
V_IN
EP3102
SW ²
EN GND GND GND GND
45 6 7 8
L1
33uH
Inductor
2.5V/2A
Output Load
+
D1
Schottky Diode
C_OUT
330uF
(3) Delay Start Circuit
V_OUT= V_FB × _⎜⎛1 + ^R1 _⎟⎞
⎝ ^R2 ⎠
V_FB=1.23V
R2=1K ~ 3K
Nov. 2006
www.eorex.com
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