ISL8502EVAL1Z Intersil, ISL8502EVAL1Z Datasheet - Page 10

• Manufacturer Part Number: ISL8502EVAL1Z
• Description: EVALUATION BOARD FOR ISL8502
• Manufacturer: Intersil

Specifications of ISL8502EVAL1Z

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 2, Non-Isolated
• Voltage - Output: 2.5V, 2.5V
• Current - Output: 2.5A. 2.5A
• Voltage - Input: 4.5 ~ 14V
• Regulator Topology: Buck
• Frequency - Switching: 500kHz
• Board Type: Fully Populated
• Utilized Ic / Part: ISL8502
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

Typical Performance Curves
FIGURE 23. MASTER OPERATION WITH FULL LOAD
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
0
FIGURE 21. MASTER TO SLAVE OPERATION
FIGURE 19. V
50
VOUT1 RIPPLE
100
20mV/DIV
V
PHASE1
CC
OUT1
5V/DIV
20mV/DIV
I V
LOAD REGULATION
10
RIPPLE
CC
150
0.5µs
PHASE1
5V
5V/DIV
(mA)
200
1A/DIV
IL1
V
T
A
V
IN
PHASE2
OUT2
5V/DIV
= +25° C, unless otherwise noted. (Continued)
250
20mV/DIV
SYNCH1
= 12V, V
5V/DIV
RIPPLE
300
OUT
ISL8502
= 2.5V, I
O
= 2A, fs = 500kHz, L = 4.7µH, C
FIGURE 24. MASTER OPERATION WITH NEGATIVE LOAD
5.5
5.4
5.3
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
FIGURE 22. MASTER OPERATION AT NO LOAD
3
FIGURE 20. VCC REGULATION vs V
4
1A/DIV
5
IL1
PHASE1
10V/DIV
0.5A/DIV
6
IL1
PHASE1
5V/DIV
7
IN
NO LOAD
8
= 20µF, C
V
IN
9
100mA LOAD
(V)
10
V OUT1
OUT
20mV/DIV
11
VOUT1 RIPPLE
= 100µF + 22µF,
SYNCH1
5V/DIV
RIPPLE
20mV/DIV
12
IN
SYNCH1
2V/DIV
13
June 29, 2010
14 15
FN6389.2