isl9106 Intersil Corporation, isl9106 Datasheet - Page 8

• Manufacturer Part Number: isl9106
• Description: 1.2a 1.6mhz Low Quiescent Current High Efficiency Synchronous Buck Regulator
• Manufacturer: Intersil Corporation

PGND
Power ground. Connect all power grounds to this pin.
SGND
Analog ground. SGND and PGND should only have one
point connection.
FB
Buck regulator output feedback pin. Connect to the output
through voltage divider resistor for adjustable output voltage.
RSI
This input resets the 215ms timer. When the output voltage
is within the power-good window, an internal timer is started
and generates a PG signal 215ms later when RSI is low. A
high RSI resets PG and RSI high to low transition restarts
the internal counter if the output voltage is within the window,
otherwise the counter is reset by the output voltage
condition. Do not leave this pin floating.
Typical Applications
L
C1
C2
C3
R1, R2, R3
PARTS
Inductor
Input capacitor
Output capacitor
Capacitor
Resistor
DESCRIPTION
8
Sumida
Murata
Murata
Murata
Various
10µF
MANUFACTURERS
C1
2.7V TO 5.5V
INPUT
FIGURE 23. TYPICAL APPLICATION DIAGRAM
100k
R1
CDRH2D14NP-2R2NC
GRM21BR60J106KE19L
GRM21BR60J106KE19L
GRM188R71H221KA01C
VIN
PG
MODE
NC
EN
ISL9106
PART NUMBER
ISL9106
Exposed Pad
The exposed pad must be connected to the PGND pin for
proper electrical performance. The exposed pad must also
be connected to as much as possible for optimal thermal
performance.
PGND
SGND
SW
RSI
FB
2.2µH
2.2µH/1.50A/75mΩ
10µF/6.3V
10µF/6.3V
220pF/50V
100kΩ, SMD, 1%
L
SPECIFICATIONS
OUTPUT
10 µF
1.6V/1.2A
C2
100k
R3
100k
R2
3.2mmx3.2mmx1.55mm
2.0mmx1.25mmx1.25mm
2.0mmx1.25mmx1.25mm
1.6mmx0.8mmx0.8mm
1.6mmx0.8mmx0.45mm
C3
220pF
SIZE
June 29, 2007
FN6509.0