参数资料
型号: TPS40192DRCRG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: SWITCHING CONTROLLER, 700 kHz SWITCHING FREQ-MAX, PDSO10
封装: 3 X 3 MM, GREEN, PLASTIC, SON-10
文件页数: 11/38页
文件大小: 707K
代理商: TPS40192DRCRG4
www.ti.com
SLUS719C – MARCH 2007 – REVISED AUGUST 2010
DESIGN EXAMPLE
Introduction
This example illustrates the design process and component selection for a 12 V to 1.8 V point-of-load
synchronous buck regulator using the TPS40192. A definition of symbols used can be found in Table 8 of this
datasheet.
Table 3. Design Example Electrical Characteristics
PARAMETER
TEST CONDITION
MIN
NOM
MAX
UNIT
VIN
Input voltage
8
14
VIN(ripple
Input ripple
IOUT = 10 A
0.6
V
)
VOUT
Output voltage
0 A
≤ IOUT ≤ 10 A
1.764
1.800
1.836
Line regulation
8.0 V
≤ VIN ≤ 14 V
0.5%
Load regulation
0 A
≤ IOUT ≤ 10 A
0.5%
VRIPPLE Output ripple
IOUT = 10 A
36
VOVER
Output overshoot
3 A
≤ IOUT ≤ 7 A
50
mV
VUNDER Output undershoot
50
IOUT
Output current
0
10
A
ISCP
Short circuit current trip point
h
Efficiency
VIN =12 V, IOUT = 5 A
90%
fSW
Switching frequency
600
kHz
Size
The list of materials for this application is shown Table 7. The efficiency, line and load regulation from boards
built using this design are shown in Figure 17 and Table 3. Gerber Files and additional application information
are available from the factory.
Figure 17. TPS40192 Sample Schematic
Copyright 2007–2010, Texas Instruments Incorporated
19
Product Folder Link(s): TPS40192 TPS40193
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