參數(shù)資料
型號: LT1622
廠商: Linear Technology Corporation
英文描述: Low Input Voltage Current Mode Step-Down DC/DC Controller(低輸入電壓,電流模式步降DC/DC控制器)
中文描述: 低輸入電壓電流模式降壓DC / DC控制器(低輸入電壓,電流模式步降直流/直流控制器)
文件頁數(shù): 13/16頁
文件大?。?/td> 223K
代理商: LT1622
13
LTC1622
TYPICAL APPLICATIO
N
S
1
2
3
4
8
7
6
5
1
4
8
7
6
5
SENSE
I
TH
V
FB
V
IN
PDRV
GND
SYNC/
MODE
RUN/
SS
L1
3.3
μ
H
R2
0.025
U1
V
1.8V
1.5A
V
IN
2.5V TO
8.5V
1622 TA01
R1
10K
C3
220pF
C1
47
μ
F
16V
C2
220
μ
F
6V
C4
560pF
R3
93.1k
LTC1622
+
+
R4
75k
C1: AVX TPSD476M016R0150
C2: AVX TPSD227M006R0100
L1: MURATA LQN6C3R3
R2: DALE WSL-1206 0.025
U1: INTERNATIONAL RECTIFIER FETKY
TM
RF7422D2
2
3
LTC1622 1.8V/1.5A Regulator with Burst Mode Operation Disabled
FETKYis a trademark of International Rectifier Corporation.
LTC1622 2.5V/2A Regulator with Burst Mode Operation Enabled
D1
L1
4.7
μ
H
R2
0.02
M1
R3
158k
V
2.5V
2A
V
3.3V TO
8.5V
R4
75k
1622 TA02
C4
560pF
C1
47
μ
F
16V
×
2
+
C2
150
μ
F
6V
×
2
+
1
2
3
4
8
7
6
SENSE
I
TH
V
FB
V
IN
PDRV
GND
RUN/
SS
LTC1622
SYNC/
MODE
R1
10k
C3
220pF
5
C1: AVX TPSD476M016R0150
C2: SANYO POSCAP 6TPA47M
D1: MOTOROLA MBR320T3
L1: COILCRAFT D03316-472
M1: SILICONIX Si3443DV
R2: DALE WSL-2010 0.02
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