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LTC1701 数据表(PDF) 10 Page - Linear Technology

部件名 LTC1701
功能描述  1MHz Step-Down DC/DC Converter in SOT-23
PDF  12 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC1701 数据表(HTML) 10 Page - Linear Technology

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10
LTC1701
TYPICAL APPLICATIO S
VIN
ITH/RUN
SW
VFB
GND
C4
0.1
µF
+
R3
5.1k
R4
1M
R1
121k
D1
C3
330pF
C1
15
µF
+
C2
15
µF
R2
121k
L1
4.7
µH
VIN
2.7V TO 5.5V
VOUT
(2.5V/0.5A)
LTC1701
C1, C2: AVX TAJA156M010R
C4: TAIYO YUDEN EMK107BJ104MA
D1: MBR0520
L1: MURATA LQH3C4R7M24 OR TAIYO YUDEN LEMC3225B4R7M
1701 TA01
VIN
ITH/RUN
SW
VFB
GND
C4
1
µF
+
R3
5.1k
R4
1M
R1
100k
D1
C3
330pF
C1
15
µF
C5
4.7
µF
+
C2
22
µF
R2
20k
L1
4.7
µH
VIN
2.5V TO 5.5V
VOUT
(1.5V/0.5A)
LTC1701
C1: AVX TAJA156M010R
C2: AVX TAJA226M006R
C4: TAIYO YUDEN LMK212BJ105MG
C5: TAIYO YUDEN JMK212BJ475MG
D1: MBRM120L
L1: MURATA LQH3C4R7M24
1701 TA02
3- to 4-Cell NiCd/NiMH to 2.5V Converter
2mm Nominal Height 1.5V Converter
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.
SW
VFB
VIN
ITH/RUN
GND
LTC1701
D1
L1
R2
R1
COUT
1701 F04
VOUT
VIN
1
2
3
5
4
CIN
CC
RC
RS
BOLD LINES INDICATE HIGH CURRENT PATHS
+
+
Figure 4. LTC1701 Layout Diagram (See Board Layout Checklist)
APPLICATIO S I FOR ATIO



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