ISL8540IVEZ Intersil, ISL8540IVEZ Datasheet - Page 9

• Manufacturer Part Number: ISL8540IVEZ
• Description: IC REG 2A DC/DC STEP-DN 20HTSSOP
• Manufacturer: Intersil
• Type: Step-Down (Buck)r

Specifications of ISL8540IVEZ

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.21 ~ 35 V
• Current - Output: 2A
• Frequency - Switching: 100kHz ~ 600kHz
• Voltage - Input: 9 ~ 40 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP Exposed Pad, 20-eTSSOP, 20-HTSSOP
• Power - Output: 3W
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Typical Performance Curves
FIGURE 16. POWER DISSIPATION vs LOAD
FIGURE 18. POWER DISSIPATION vs LOAD
FIGURE 20. STEADY STATE OPERATION WITH FULL LOAD
RTCT = 2V/DIV
V
OUT
3.0
2.5
2.0
1.5
1.0
0.5
0.0
3.0
2.5
2.0
1.5
1.0
0.5
0.0
RIPPLE = 50mV/DIV
0.0
0.0
(V
(V
OUT
OUT
LX = 10V/DIV
= 5V - 500kHz)
= 24V - 500kHz)
0.5
0.5
OUTPUT LOAD (A)
OUTPUT LOAD (A)
9
12V V
1.0
1.0
IN
36V V
36V V
Circuit of Figure 2, V
Typical values are at T
24V V
IN
IN
1.5
1.5
IN
IL = 1A/DIV
2.0
2.0
ISL8540
IN
A
= 24V, EN = 0V, FS = 500KHz, V
= +25°C. (Continued)
FIGURE 17. POWER DISSIPATION vs LOAD
RTCT = 2V/DIV
V
FIGURE 19. STEADY STATE OPERATION AT NO LOAD
OUT
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.0
RIPPLE = 50mV/DIV
(V
FIGURE 21. LOAD TRANSIENT
OUT
LX = 10V/DIV
LX = 10V/DIV
= 12V - 500kHz)
0.5
OUT
OUTPUT LOAD (A)
= 5V, unless otherwise noted.
IL = 1A/DIV
1.0
V
OUT
36V V
RIPPLE = 50mV/DIV
IN
1.5
IL = 0.2A/DIV
24V V
September 9, 2008
IN
FN6495.5
2.0