参数资料
型号: TPS40195RGYR
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: SWITCHING CONTROLLER, 580 kHz SWITCHING FREQ-MAX, PQCC16
封装: GREEN, PLASTIC, QFN-16
文件页数: 26/43页
文件大小: 1086K
代理商: TPS40195RGYR
Design Example 3
0
100
1 k
100 k
10 k
f
SW - Switching Frequency - Hz
0
20
80
100
120
40
60
P
h
a
s
e
-
°
30
40
50
60
10
20
G
a
in
-
d
B
100 k
PHASE
GAIN
0
50
60
90
100
20
0
30
h
-
E
ff
ic
ie
n
c
y
-
%
0.5
1.0
2.0
1.5
2.5
3.0
3.5
9 V
10 V
11 V
V
IN
I
OUT
- Load Current - A
80
70
40
10
SLUS720D – FEBRUARY 2007 – REVISED NOVEMBER 2008 ........................................................................................................................................ www.ti.com
This design delivers 1 A to 3 A from a 10 V supply. The output voltage may be adjusted from 1 V to 5 V with a
single resistor. The part has 57° of phase margin at a crossover frequency of 59 kHz. The design is built on a
double sided PC board with an active area of 1.5 cm × 3 cm.
Figure 32. Design Example 3 Schematic
EFFICIENCY
GAIN AND PHASE
vs
LOAD CURRENT
FREQUENCY
Figure 33.
Figure 34.
32
Copyright 2007–2008, Texas Instruments Incorporated
Product Folder Link(s): TPS40195
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