isl8036 Intersil Corporation, isl8036 Datasheet - Page 15

• Manufacturer Part Number: isl8036
• Description: Dual 3a 1mhz/2.5mhz High Efficiency Synchronous Buck Regulator
• Manufacturer: Intersil Corporation

ISL8036A Typical Operating Performance for Dual PWM Operation
Unless otherwise noted, operating conditions are: V
L1 = L2 = 0.6µH, F
FIGURE 31. EFFICIENCY vs LOAD, 3.3V
FIGURE 33. POWER DISSIPATION vs LOAD, 1.8V
FIGURE 35. V
1.810
1.805
1.800
1.795
1.790
1.785
1.780
1.50
1.25
1.00
0.75
0.50
0.25
0.00
100
90
80
70
60
50
40
0.0
0
2.5
CHANNEL 1, T
DUAL CHANNEL 1, T
CHANNEL 1, T
OUT
1.2V
0.5
3A LOAD
0.5
3.0
SW
OUT
REGULATION vs V
= 2.5MHz.
1.0
INPUT VOLTAGE (V)
1.0
OUTPUT LOAD (A)
OUTPUT LOAD (A)
3.5
1.5V
15
A
A
1.5A LOAD
= +25°C
= +25°C
OUT
1.5
1.5
4.0
A
= +25°C
5V
IN
2.5V
1.8V
2.0
2.0
IN
4.5
, 1.8V
IN
3.3V
OUT
OUT
0A LOAD
DUAL
IN
ISL8036, ISL8036A
2.5
2.5
IN
2.7V
5.0
OUT1
DUAL
IN
IN
3.0
3.0
= 1.8V; V
5.5
FIGURE 32. EFFICIENCY vs LOAD, 5V
FIGURE 34. V
FIGURE 36. STEADY STATE OPERATION AT NO LOAD
OUT2
1.810
1.805
1.800
1.795
1.790
1.785
1.780
IL1 0.5A/DIV
100
= 0.8V; I
90
80
70
60
50
40
0.0
0
CHANNEL 1, T
CHANNEL 1, T
CHANNEL 1
OUT1
OUT
0.5
1.2V
0.5
REGULATION vs LOAD, 1.8V
= 0A to 3A; I
5V
OUT
IN
1.0
OUTPUT LOAD (A)
OUTPUT LOAD (A)
1.0
1.5V
2.5V
A
A
3.3V
OUT
= +25°C
= +25°C
1.5
OUT
1.5
OUT2
VOUT RIPPLE 20mV/DIV
IN
1.8V
= 0A to 3A,
2.0
IN
2.7V
2.0
OUT
DUAL
IN
LX1 2V/DIV
October 18, 2010
2.5
2.5
3.3V
IN
OUT
DUAL
FN6853.1
3.0
3.0