isl9106 Intersil Corporation, isl9106 Datasheet - Page 7

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

100mV/DIV
Typical Operating Performance
Pin Descriptions
VIN
Input supply voltage. Connect a 10μF ceramic capacitor to
power ground.
NC
No connect.
EN
Enable pin. Enable the device when driven to high. Shut
down the chip and discharge output capacitor when driven to
low. Do not leave this pin floating.
0.2A/DIV
50mV/DIV
0.5A/DIV
2V/DIV
FIGURE 19. LOAD TRANSIENT TEST (MODE = V
FIGURE 21. LOAD TRANSIENT TEST (MODE = V
1A/DIV
2V/DIV
V
V
O
O
= 2.5V; I
= 3.3V; I
O
O
= 0.01A~1A)
= 0.2A~0.4A)
V
7
OUT
100μs/DIV
100µs/DIV
V
(AC COUPLED)
OUT
V
(AC COUPLED)
SW
I
L
(Continued)
V
SW
IN
IN
= 5.0V;
= 5V;
I
OUT
I
L
ISL9106
PG
215ms timer output. This output is a 215ms delayed power-
good signal (PG) for the output voltage when output voltage
is within the power-good window. It can be reset by a high
RSI signal, then 215ms starts when RSI goes from high to
low.
MODE
Mode selection pin. Connect to logic high or input voltage
VIN for low I
forced PWM mode. Do not leave this pin floating.
SW
Switching node connection. Connect to one terminal of
inductor.
100mV/DIV
100mV/DIV
FIGURE 20. LOAD TRANSIENT TEST (MODE = GND,
2V/DIV
FIGURE 22. LOAD TRANSIENT TEST (MODE = GND,
2V/DIV
1A/DIV
1A/DIV
Q
V
V
mode; connect to logic low or ground for
IN
IN
= 5.0V; V
= 5.0V; V
O
O
I
L
= 2.5V; I
= 3.3V; I
V
OUT
V
100µs/DIV
100μs/DIV
OUT
(AC COUPLED)
(AC COUPLED)
O
O
= 0.01A~1A)
= 0.01A~1A)
I
L
V
V
SW
SW
June 29, 2007
FN6509.0