LTC1701(1999) Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LTC1701 Datasheet PDF : 12 Pages
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LTC1701
APPLICATIO S I FOR ATIO
5. Keep sensitive components away from the SW pin. The
input capacitor CIN, the compensation capacitor CC and all
the resistors R1, R2, RC and RS should be routed away
from the SW trace and the components L1 and D1.
VOUT
+
COUT
L1
1
5
SW
VIN
VIN
D1
LTC1701
+
CIN
2 GND
R2
3
4
RS
VFB
ITH/RUN
RC
R1
CC
BOLD LINES INDICATE HIGH CURRENT PATHS
1701 F04
Figure 4. LTC1701 Layout Diagram (See Board Layout Checklist)
TYPICAL APPLICATIO S
3- to 4-Cell NiCd/NiMH to 2.5V Converter
VIN
2.7V TO 5.5V
L1
4.7µH
VIN
SW
+
C1
15µF
R4
1M
C4
0.1µF
R3
5.1k
LTC1701
ITH/RUN
VFB
GND
C3
330pF
D1
R2
121k
R1
121k
C1, C2: AVX TAJA156M010R
C4: TAIYO YUDEN EMK107BJ104MA
D1: MBR0520
L1: MURATA LQH3C4R7M24 OR TAIYO YUDEN LEMC3225B4R7M
VOUT
(2.5V/0.5A)
+
C2
15µF
1701 TA01
10
2mm Nominal Height 1.5V Converter
VIN
2.5V TO 5.5V
+
C1
15µF
R4
1M
C4
1µF
R3
5.1k
C1: AVX TAJA156M010R
C2: AVX TAJA226M006R
C4: TAIYO YUDEN LMK212BJ105MG
C5: TAIYO YUDEN JMK212BJ475MG
D1: MBRM120L
L1: MURATA LQH3C4R7M24
VIN
SW
LTC1701
ITH/RUN
VFB
GND
C3
330pF
L1
4.7µH
D1
R2
20k
R1
100k
+
C2
22µF
VOUT
(1.5V/0.5A)
C5
4.7µF
1701 TA02
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