RT8016 Ver la hoja de datos (PDF) - Richtek Technology
Número de pieza
componentes Descripción
Fabricante
RT8016 Datasheet PDF : 14 Pages
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RT8016
Typical Application Circuit
VIN
2.5V to 5.5V
CIN
4.7µF
3 VIN
L
2.2µH
LX 4
RT8016
2 EN VOUT 6
GND
1, 5
VOUT
COUT
10µF
Figure 1. Fixed Voltage Regulator
VIN
2.5V to 5.5V
L
3 VIN
2.2µH
LX 4
CIN
4.7µF
RT8016
C1
R1
2 EN
FB 6
GND
1, 5
IR2
R2
VOUT
COUT
10µF
VOUT
=
VREF
x ⎜⎝⎛1+
R1
R2
⎟⎠⎞
with R2 = 300kΩ to 60kΩ so the IR2 = 2μA to 10μA,
and (R1 x C1) should be in the range between 3x10-6 and 6x10-6 for component selection.
Figure 2. Adjustable Voltage Regulator
Layout Guide
RT8016_FIX
RT8016_ADJ
GND 1
EN 2
VIN 3
6 VOUT
Output capacitor
5 GND
must be near
RT8016
L1
4 LX
COUT
CIN
LX should be connected
CIN must be placed to Inductor by wide and
between VDD and short trace, keep
GND as close as sensitive compontents
possible
away from this trace
GND 1
EN 2
VIN 3
6 FB
Output
capacitor
5 GND
must be near
L1
RT8016
4 LX
COUT
R1
LX should be
CIN
connected to
R2
Inductor by wide
CIN must be placed
between VDD and
GND as close as
possible
and short trace,
keep sensitive
compontents away
from this trace
Layout note:
1. The distance that CIN connects to VIN is as close as possible (Under 2mm).
2. COUT should be placed near RT8016.
Figure 3. Layout Guide for RT8016
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
www.richtek.com
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is a registered trademark of Richtek Technology Corporation.
DS8016-04 February 2012
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