LTC1701B 查看數據表（PDF） - Linear Technology
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LTC1701B Datasheet PDF : 12 Pages
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TYPICAL APPLICATIO S
LTC1701/LTC1701B
2mm Nominal Height 1.5V Converter
VIN
2.5V TO
5.5V
+
C1
15µF
R4
1M
C4
1µF
R3
5.1k
VIN
SW
LTC1701
ITH/RUN
VFB
GND
C3
330pF
L1
4.7µH
D1
R2
20k
R1
100k
+
C2
22µF
C1: AVX TAJA156M010R C4: TAIYO YUDEN LMK212BJ105MG D1: MBRM120L
C2: AVX TAJA226M006R C5: TAIYO YUDEN JMK212BJ475MG L1: MURATA LQH3C4R7M24
VOUT
(1.5V/0.5A)
C5
4.7µF
1701 TA01a
Efficiency Curve
90
VIN = 2.5V
85
80
VIN = 3.3V
75
70
65
60
55
VOUT = 1.5V
50
1
10
LTC1701
LTC1701B
100
1000
LOAD CURRENT (mA)
1701TA01b
All Ceramic Capacitor 2.5V Converter
VIN
2.5V TO
5.5V
C1
10µF
R4
1M
C4
1µF
R3
5.1k
VIN
SW
LTC1701
ITH/RUN
VFB
GND
C3
R1
180pF
121k
L1
4.7µH
D1
R2
121k
C6
33pF
C2
10µF
C1, C2: TAIYO YUDEN JMK316BJ106ML
C4, C5: TAIYO YUDEN LMK212BJ105MG
L1: MURATA LQH3C4R7M24
D1: MBRM120L
VOUT
(2.5V/0.5A)
C5
1µF
1701 TA02
Efficiency Curve
100
VOUT = 2.5V
95
VIN = 3.3V
90
85
VIN = 5.0V
80
75
70
1
LTC1701
LTC1701B
10
100
LOAD CURRENT (mA)
1000
1701 TA02b
5V to 3.3V Converter with Push-Button On/Off
VIN
3.3V TO
5.5V
C1 +
15µF
VIN
SW
ON
R4
C4
1M
1µF
R3
OFF
R5 5.1k
5.1M
LTC1701
ITH/RUN
VFB
GND
C3
330pF
L1
4.7µH
D1
R2
34k
R1
20.5k
C2 +
22µF
C1: AVX TAJA156M010R
C2: AVX TAJA226M006R
C4, C5: TAIYO YUDEN LMK212BJ105MG
D1: MBRM120L
L1: MURATA LQH3C4R7M24
LTC1701B Low Current Pulse Skip
VOUT
(3.3V/
0.5A)
VOUT
20mV/DIV
C5
1µF
1701 TA03a
IL
50mA/DIV
VIN = 5V
VOUT = 2.5V
5µs/DIV
1701 TA03b
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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