RT8251GSP Ver la hoja de datos (PDF) - Richtek Technology
Número de pieza
componentes Descripción
Fabricante
RT8251GSP Datasheet PDF : 16 Pages
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RT8251
Marking Information
RT8251GQW
GE= : Product Code
GE=YM
DNN
YMDNN : Date Code
RT8251GSP
RT8251
GSPYMDNN
RT8251GSP : Product Number
YMDNN : Date Code
Typical Application Circuit
VIN
4.75V to 24V
Chip Enable
1, 2, 3,
15, 16 VIN
BOOT 9
CIN
10µF x 2
7
RT8251
SW
EN
10 to 14
CSS
10nF
8 SS
4,
Exposed Pad (17)
GND
FB 5
COMP 6
CC
2.2nF
CBOOT L
100nF 4.7µH
D
B540C
RC
22k
R1
30.9k
R2
10k
VOUT
3.3V/5A
COUT
22µF x 2
CP
(Open)
Figure 1. Typical Application Circuit for WQFN-16L 3x3
VIN
4.75V to 24V
Chip Enable
2 VIN
CIN
10µF x 2
7 EN
BOOT 1
RT8251
SW 3
CSS
10nF
8 SS
4,
Exposed Pad(9)
GND
FB 5
COMP 6
CBOOT
100nF L
D
4.7µH
B540C
CC
2.2nF
RC
22k
R1
30.9k
R2
10k
VOUT
3.3V/5A
COUT
22µF x 2
CP
NC
Figure 2. Typical Application Circuit for SOP-8 (Exposed Pad)
VOUT (V)
15
10
8
5
3.3
2.5
1.8
1.2
Table 1. Recommended Component Selection
R1 (kΩ)
182
R2 (kΩ)
10
RC (kΩ)
51
CC (nF)
1
L1 (μH)
22
115
10
43
1.2
10
91
10
39
1.5
10
52.3
10
30
1.5
6.8
30.9
10
22
2.2
4.7
21.5
10
16
2.2
4.7
12.4
10
13
2.2
2.2
4.99
10
13
2.2
2.2
COUT (μF)
44
44
44
44
44
44
44
44
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS8251-04 February 2013
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