LX1918CLD MICROSEMI [Microsemi Corporation], LX1918CLD Datasheet - Page 5

• Manufacturer Part Number: LX1918CLD
• Description: 1.8A Step-Down Synchronous Converter
• Manufacturer: MICROSEMI [Microsemi Corporation]

Copyright © 2004
Rev. 1.1, 2005-07-05
V
Figure 2 – Typical Application: Highest Light Load Efficiency Mode During Light Load With Internal 1MHz PWM Frequency
V
Figure 3 – Typical Application: PWM Low EMI Mode Operation During Light Load With External 500kHz Synchronization
IN
IN
= 2.7 to 5.5V
= 2.7 to 5.5V
TM
0.1µF
0.1µF
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
500kHz
ON OFF
4.7µF
4.7µF
40.2
40.2
A P P L I C A T I O N C I R C U I T S
Integrated Products Division
E/S
MODE
PWR
VCC
E/S
MODE
VCC
PWR
®
LX1918
LX1918
LX1918
LX1918
PGND
PGND
Microsemi
SGND
SGND
1.8A Step-Down Synchronous Converter
SW
SW
FB
FB
3.3µH
3.3µH
L1
L1
P
RODUCTION
20K
10K
15k
10k
R1
R2
R1
R2
D
ATA
S
47µF
HEET
47µF
1.5V @ 1.5A
1.8V @ 1.5A
LX1918
Page 5