FAN4855 Datasheet, PDF (4/12 Pages) Fairchild Semiconductor – 500mA High Efficiency Boost Regulator with Adjustable Output, Shutdown and Low Battery Detect

VIN
2
1
10uH
1.6V to 3.0V
SHDN
2
1
Reset
2
1
R1
750K
JP2
JP3
U1 FAN4855
1 _Vin
Gnd ⁸
2 _SHDN
VL ⁷
3 _LBI
Vout ⁶
4 _LBO
FB ⁵
+ _C1
47µF
R2
240K
R3
100K
Ext
Pull Up
J1
SCOPE JACK
C3
18pF
R4
402K
JP1
VOUT
1
2
3.3V or 5V
2
1
+ _C2
C5
R6
R5
47µF
0.1µF
287K
240K
Tantalum
GND
2
1
GND1
1
2
Figure 1. Test Circuit
4
FAN4855 Rev. 1.0.1
www.fairchildsemi.com