ISL6273 Datasheet, PDF (7/12 Pages) Intersil Corporation – 1.2A Low Quiescent Current 1.5MHz High Efficiency Synchronous Buck Regulator

Typical Applications
ISL6273
INPUT 2.7V-5.5V
ISL6273 - 25
PVIN
PHASE
C1
10 µF
R1
100k
VCC
C3: 0.1µF
EN
POR
PGND
SGND
FB
VCC
MODE
RSI
L
1.8uH
OUTPUT
2.5V/1.2A
C2
10 µF
PARTS DESCRIPTION
L
Output inductor
C1
Input capacitor
C3
Bypass capacitor
C2
Output capacitor
R1
Pull-up resistor
MANUFACTURERS
PART NUMBER
Sumida
CDRH4D18 2R2
Coilcraft
1008PS-182M
Murata
GRM21BR60J106KE19L
Taiyo Yuden
EMK107BJ104MA
Murata
GRM21BR60J106KE19L
Various
SPECIFICATIONS
2.2µH/1.32A/58mΩ
1.8µH/1.9A/90mΩ
10µF/6.3V/3mΩ
0.1µF/16V
10µF/6.3V/3mΩ
100kΩ
SIZE
5.0×5.0×2.0mm
3.8x3.8x2.8mm
2.0x1.25x1.25mm (0805)
1.6x0.8x0.8mm (0603)
2.0x1.25x1.25mm (0805)
1.6x0.8x0.45mm (0603)
FIGURE 15. TYPICAL APPLICATION FOR FIXED OUTPUT VERSION
INPUT 2.7V-5.5V
ISL6273 - ADJ
PVIN
PHASE
C1
10uF
R1
100k
VCC
C3: 0.1µF
EN
POR
PGND
SGND
FB
VCC
MODE
RSI
L
1.8uH
OUTPUT
1.3V/1.2A
C2
10uF
R2
100K
R3
160K
FIGURE 16. TYPICAL APPLICATION FOR ADJUSTABLE VERSION
7
FN9256.0
March 7, 2006