参数资料
型号: LX1665CDWT
元件分类: 稳压器
英文描述: 1.5 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO18
封装: PLASTIC, SOIC-18
文件页数: 13/17页
文件大小: 354K
代理商: LX1665CDWT
DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC
LX1664/1664A, LX1665/65A
PRODUCT DA T ABOOK 1996/1997
5
Copyright 1999
Rev. 1.2 11/99
P RODUCTION D ATA S HEET
CHARACTERISTICS CUR VES
70
75
80
85
90
95
12
34
56
7
8
9
10
11
12
13
14
IOUT (A)
EFFICIENCY
(%)
__
EFFICIENCY AT 3.1V
EFFICIENCY AT 2.8V
EFFICIENCY AT 1.8V
Output Set Point
70
75
80
85
90
95
100
1234
567
89
10
11
12
13
14
IOUT (A)
EFFICIENCY
(%)
__
EFFICIENCY AT 3.1V
EFFICIENCY AT 2.8V
EFFICIENCY AT 1.8V
Output Set Point
FIGURE 2 — Efficiency Test Results:
Non-Synchronous Operation, V
IN = 5V
FIGURE 3 — Efficiency Test Results:
Synchronous Operation, V
IN = 5V
FIGURE 4 — Efficiency Test Results: Synchronous Operation, V
IN = 12V.
Note: Non-synchronous operation not recommended for 12V operation, due to power loss in Schottky diode.
60
65
70
75
80
85
90
12
34
56
78
9
10
11
12
13
14
IOUT (A)
1.8V EFFICIENCY
2.8V EFFICIENCY
3.3V EFFICIENCY
Output Set Point
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