lx1663 Microsemi Corporation, lx1663 Datasheet - Page 5

• Manufacturer Part Number: lx1663
• Description: Single-chip Programmable Controllers With 5-bit
• Manufacturer: Microsemi Corporation

95
90
85
80
75
70
1
2
Output Set Point
3
Non-Synchronous Operation, V
FIGURE 2 — Efficiency Test Results:
Note: Non-synchronous operation not recommended for 12V operation, due to power loss in Schottky diode.
EFFICIENCY AT 3.1V
EFFICIENCY AT 2.8V
EFFICIENCY AT 1.8V
4
5
6
I
7
OUT
(A)
FIGURE 4 — Efficiency Test Results: Synchronous Operation, V
8
9
10
IN
= 5V
11
12
13
1.8V EFFICIENCY
2.8V EFFICIENCY
3.3V EFFICIENCY
14
100
95
90
85
80
75
70
LX1662/62A, LX1663/63A
1
2
Output Set Point
3
FIGURE 3 — Efficiency Test Results:
EFFICIENCY AT 3.1V
EFFICIENCY AT 2.8V
EFFICIENCY AT 1.8V
Synchronous Operation, V
4
5
IN
= 12V.
6
7
I
OUT
(A)
8
9
IN
= 5V
10
11
12
13
14
5