AIC1550 AIC [Analog Intergrations Corporation], AIC1550 Datasheet - Page 7

• Manufacturer Part Number: AIC1550
• Description: Low-Noise Synchronous PWM Step-Down DC/DC Converter
• Manufacturer: AIC [Analog Intergrations Corporation]

TYPICAL PERFORMANCE CHARACTERISTICS
1000
300
250
200
150
100
900
800
700
600
500
50
0
2250
2.5
V
Fig. 15
OUT
Fig. 13 DC Supply Current vs. Supply Voltage
2000
3.0
=1.8V
Fig. 17 Load Transient Response
3.5
Operation Frequency vs. Tuning Resistor
1750
Tuning Resistor R
4.0
V
I
SYNC/MODE=IN
LOAD
Supply Voltage (V)
1500
OUT
=1.8V;
=50mA to 500mA;
4.5
1250
5.0
SYNC/PWM=IN
SYNC/PWM=GND
1000
T
(k Ω )
5.5
750
6.0
500
6.5
250
7.0
100
90
80
70
60
50
40
30
20
10
0.1
PWM/PFM
Fig. 16 Start-up from Shutdown, R
Fig. 18 Load Transient Response
Fig. 14 Efficiency vs. Load current
1
V
I
SYNC/MODE=GND
LOAD
OUT
(continued)
Load current (mA)
=1.8V;
=50mA to 500mA;
10
PWM
V
V
IN
OUT
100
LOAD
=3.6V
=1.8V
AIC1550
=3 Ω
1000
7