參數(shù)資料
型號(hào): TPS40022PWP
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 0.01 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封裝: POWERPAD, PLASTIC, HTSSOP-16
文件頁(yè)數(shù): 13/29頁(yè)
文件大?。?/td> 337K
代理商: TPS40022PWP
TPS40020
TPS40021
TPS40022
SLUS535 – MARCH 2003
www.ti.com
20
REFERENCE DESIGN
TEST RESULTS
Efficiency Curves
The tested efficiency at different loads and input voltages are shown in Figure 16. The maximum efficiency is
as high as 92.4% at 1.5-V output. The efficiency is around 87.7% when the load current (ILOAD) is 20 A.
0.80
0.75
0.85
0.90
0.95
0.70
0
5
10
15
20
EFFICIENCY
vs
OUTPUT LOAD CURRENT
ILOAD – Load Current – A
Efficiency
%
VOUT = 2.5 V
VOUT = 4.0 V
VOUT = 5.0 V
VOUT = 3.3 V
Figure 11.
Typical Operating Waveforms
Typical operating waveforms are shown in Figure 17 and 18.
Figure 12
t – Time – 1
s/div
VIN = 3.3 V
ILOAD = 20 A
VSW (2 V/div)
Figure 13
t – Time – 1
s/div
VOUTac (10 mV/div)
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