ltc1622 Linear Technology Corporation, ltc1622 Datasheet - Page 13

• Manufacturer Part Number: ltc1622
• Description: Low Input Voltage Current Mode Step-down Dc/dc Controller
• Manufacturer: Linear Technology Corporation

TYPICAL APPLICATIONS
R1
10K
2.5V TO
C3
220pF
8.5V
V
IN
C1: AVX TPSD476M016R0150
C2: AVX TPSD227M006R0100
L1: MURATA LQN6C3R3
560pF
C4
R1
10k
C3
220pF
LTC1622 1.8V/1.5A Regulator with Burst Mode Operation Disabled
1
2
3
4
LTC1622 2.5V/2A Regulator with Burst Mode Operation Enabled
SENSE
I
V
RUN/
SS
C1: AVX TPSD476M016R0150
C2: SANYO POSCAP 6TPA47M
D1: MOTOROLA MBR320T3
TH
FB
U
LTC1622
–
1
2
3
4
C4
560pF
SYNC/
MODE
PDRV
SENSE
I
V
RUN/
SS
TH
GND
FB
V
IN
LTC1622
–
8
7
6
5
R2: DALE WSL-1206 0.025
U1: INTERNATIONAL RECTIFIER FETKY
SYNC/
MODE
PDRV
GND
47 F
V
16V
C1
IN
5
8
7
6
+
0.025
R2
D1
L1: COILCRAFT D03316-472
M1: SILICONIX Si3443DV
R2: DALE WSL-2010 0.02
FETKY is a trademark of International Rectifier Corporation.
3
1
2
4
M1
R2
0.02
4.7 H
L1
TM
U1
IRF7422D2
+
+
C1
47 F
16V
C2
150 F
6V
2
2
8
7
6
5
R3
158k
R4
75k
3.3 H
L1
1622 TA02
V
3.3V TO
8.5V
V
2.5V
2A
IN
OUT
R4
75k
R3
93.1k
+
1622 TA01
C2
220 F
6V
LTC1622
V
1.8V
1.5A
OUT
13